Computer Fundamentals MCQs - Section 4 (Miscellaneous)

1

A program that performs a useful task while simultaneously allowing destructive acts is:

A) Worm B) Trojan Horse C) Virus D) Macro Virus

Answer: Option B
Solution: Trojan horses are software programs that masquerade or disguise as regular programs, such as games, disk utilities, and even antivirus programs. But if they are run, these programs can do malicious things to your computer. For example, a Trojan horse might appear to be a computer game, but once you double-click it, the program starts writing over certain parts of your hard drive, corrupting your data. While this is certainly something you want to avoid, it is good to know that these malicious programs are only dangerous if they are given a chance to run. Also, most antivirus programs can catch Trojan horses when scanning for viruses. Unlike viruses, however, Trojan horses don't replicate themselves. Though it is possible for a Trojan horse to be attached to a virus file that spreads to multiple computers.

2

In 1999, the Melissa virus was a widely publicized:

A) e-mail Virus B) Macro virus C) Trojan Horse D) Time Bomb

Answer: Option A
Solution: Melissa is a macro virus which spread very fast. It was distributed through email attachment that when opened, it disables a number of safeguards in Word 97 and Word 2000. And if user has and Outlook email program causes the virus to be resent first 50 people in each of the user’s address book. It does not destroy files or other resources but it has potential to disable corporate and other mail servers as the ripple of e-mail distribution becomes a much larger wave. On Friday, March 26, 1999, Melissa caused the Microsoft Corporation to shut down incoming e-mail.

3

An intentionally disruptive program that spreads from program to program or from disk to disk is known as

A) Trojan horse B) Virus C) Time bomb D) Time related bomb sequence

Answer: Option B
Solution: A computer virus is a program or piece of code that is loaded onto computer without the knowledge of the computer owner and runs against his wishes. Viruses can also replicate themselves. A simple virus that can make a copy of it over and over. Even such a simple virus is dangerous because it will quickly use all available memory and bring the system to a halt. An even more dangerous type of virus is one capable of transmitting itself across networks and bypassing security systems.

4

Malicious software is known as:

A) Badware B) Malware C) Maliciousware D) Illegalware

Answer: Option B
Solution: Malicious software is known as Malware. Malicious software or malware is used to disrupt computer operation , steal sensitive information data, or gain an unauthorized access to private computer systems. It can be in form of executable code, scripts, active content or other software.

5

Collecting personal information and effectively posing as another individual is known as the crime of:

A) Spooling B) Identity Theft C) Spoofing D) Hacking

Answer: Option B
Solution: Identity Theft is the crime where someone collects personal information and effectively poses as another individual. It involves stealing another person's personal information, such as their name, social security number, or financial details, with the intent to use that information for fraudulent purposes, such as making unauthorized financial transactions or other activities in the victim's name. The other options are not accurate: Option A: Spooling is a computer processing technique for optimizing data transfer, not related to identity theft. Option C: Spoofing typically involves deceiving or misrepresenting the source of information in network communications, but it's not the same as identity theft. Option D: Hacking refers to unauthorized access or manipulation of computer systems or networks but does not inherently involve identity theft. So, the correct answer is Option B: Identity Theft , as it accurately describes the crime of collecting personal information and posing as another individual for illegal purposes.

6

The common name for the crime of stealing passwords is:

A) Spooling B) Identity theft C) Spoofing D) Hacking

Answer: Option C
Solution: A spoofing attack is a situation in which one person or program successfully masquerades or disguise as another by falsifying data and thereby gaining an illegitimate advantage. It may use for stealing password or IP.

7

The majority of computer crimes are committed by:

A) Hackers B) Insiders C) Overseas criminals D) Young teenage computer geniuses

Answer: Option B
Solution: An insider threat is a malicious threat to an organization that comes from people within the organization, such as employees, former employees, contractors or business associates, who have inside information concerning the organization's security practices, data and computer systems. The threat may involve fraud, the theft of confidential or commercially valuable information, the theft of intellectual property, or the sabotage of computer systems. The insider threat comes in three categories: I. Malicious insiders, which are people who take advantage of their access to inflict harm on an organization. II. Negligent insiders, which are people who make errors and disregard policies, which place their organizations at risk. III. Infiltrators, who are external actors that obtain legitimate access credentials without authorization.

8

The thing that eventually terminates a worm virus is a lack of:

A) Memory or disk space B) Time C) CD drive space D) CD-RW

Answer: Option A
Solution: The correct answer is A: Memory or disk space . Let's break down why: A worm virus is a type of malware that self-replicates and spreads to other computers on a network. Unlike a regular virus, it doesn't need to attach itself to a host program. It does this by consuming resources like memory and disk space . Eventually, a worm can exhaust these resources to the point where the system becomes slow or unusable, and it can no longer replicate and spread. Option B: Time is incorrect because time itself doesn't limit a worm. Worms can continue to replicate as long as resources are available. Option C: CD drive space and Option D: CD-RW are incorrect because worms primarily spread through networks and use system resources, not necessarily CD drives. Therefore, the lack of memory or disk space is the most direct factor that eventually terminates a worm virus.

9

When a logic bomb is activated by a time-related event, it is known as a:

A) Time-related bomb sequence B) Virus C) Time bomb D) Trojan horse

Answer: Option C
Solution: The logic bomb is activated by a time-related event, it is known as a time-related bomb sequence.

10

A logic bomb that was created to erupt on Michelangelo's birthday is an example of a:

A) Time-related bomb sequence B) Virus C) Time bomb D) Trojan horse

Answer: Option C
Solution: A logic bomb that was created to erupt on Michelangelo's birthday is an example of a Time bomb. In computer software, a time bomb is part of a computer program that has been written so that it will start or stop functioning after a predetermined date.

11

What is the name of an application program that gathers user information and sends it to someone through the Internet?

A) A virus B) Spybot C) Logic bomb D) Security patch

Answer: Option B
Solution: Spyware is an unwanted software that infiltrates the computing device, stealing internet usage data and sensitive information and sending it to someone across internet.

12

Standardization of Microsoft programs and the Windows operating system has made the spread of viruses:

A) More complicated B) More difficult C) Easier D) Slower

Answer: Option C
Solution: The correct answer is Option C: Easier . Here's why: Standardization means that many computers use the same Microsoft programs and the Windows operating system. If a virus is designed to attack a specific version of Windows or a Microsoft program, it can spread very easily to many computers because they all have the same vulnerability. Think of it like this: if all houses have the same lock, and someone finds a way to open that lock, they can open all the houses easily . So, standardization makes it easier for a virus to spread . Option A is incorrect because standardization doesn't make spreading viruses more complicated. Option B is incorrect because standardization actually makes it easier, not more difficult, for viruses to spread. Option D is incorrect because the spread becomes faster, not slower.

13

HTML viruses infect:

A) Your computer B) A Web page in the HTML code C) Both a Web page and the computer that is viewing it. D) None of these

Answer: Option B
Solution: HTML, Hypertext Markup Language, is the code that is used to structure a web page and its content. For example, content could be structured within a set of paragraphs, a list of bulleted points or using images and data tables.

14

Software programs that close potential security breaches in an operating system are known as:

A) Security breach fixes B) Refresh patches C) Security repairs D) Security patches

Answer: Option D
Solution: A security patch is a software program that closes possible security breaches in the operating system.

15

When customers of a Web site are unable to access it due to a bombardment of fake traffic, it is known as:

A) A virus B) A Trojan Horse C) Cracking D) A denial of service attack.

Answer: Option D
Solution: The customers of a Web site are unable to access it due to a bombardment of fake traffic, it is known as A denial of service attack.

16

__________ is the measurement of things such as fingerprints and retinal scans used for security access.

A) Biometrics B) Biomeasurement C) Computer security D) Smart weapon machinery

Answer: Option A
Solution: Biometrics is the measurement of things such as fingerprints and retinal scans used for security access. The physical characteristics, that can be used to identify individuals.

17

What is the most common tool used to restrict access to a computer system?

A) User log in B) Passwords C) Computer keys D) Access-control software

Answer: Option B
Solution: Passwords is a common tool used to restrict access to a computer system. The passwords stored in the Google Chrome app are linked to your Google account, so you can access them through Google Chrome on a Mac or PC as well.

18

Hardware or software designed to guard against unauthorized access to a computer network is known as a(n):

A) Hacker-proof program B) Firewall C) Hacker-resistant server D) Encryption safe wall

Answer: Option B
Solution: Hardware or software designed to guard against unauthorized access to a computer network is known as a(n) Firewall. A Firewall is a network security device that monitors and filters incoming and outgoing network traffic based on an organization's previously established security policies.

19

The scrambling of code is known as:

A) Encryption B) A firewall C) Scrambling D) Password-proofing

Answer: Option A
Solution: The scrambling of code is known as encryption. It is the process of converting information or data into a code, especially to prevent unauthorized access.

20

If you want to secure a message, use a(n):

A) Cryptology source B) Encryption key C) Encryption software package D) Cryptosystem

Answer: Option D
Solution: A cryptosystem is a structure or scheme consisting of a set of algorithms that converts plaintext to ciphertext to encode or decode messages securely. To help keep data secure, cryptosystems incorporate the algorithms for key generation, encryption and decryption techniques.

21

Instructions and memory address are represented by

A) Character code B) Binary codes C) Binary word D) Parity bit

Answer: Option B
Solution: Instructions and memory address are represented by Binary codes. A binary code represents text, computer processor instructions or any other data using a two-symbol system.

22

A storage area used to store data to a compensate for the difference in speed at which the different units can handle data is

A) Memory B) Buffer C) Accumulator D) Address

Answer: Option B
Solution: A buffer, also called buffer memory, is a portion of a computer's memory that is set aside as a temporary holding place for data that is being sent to or received from an external device, such as a hard disk drive (HDD), keyboard or printer.

23

Which of the following will happen when data is entered into a memory location?

A) It will add to the content of the location. B) It will change the address of the memory location. C) It will erase the previous content. D) It will not be fruitful if there is already some data at the location.

Answer: Option A
Solution: The process of copying data from the memory location is called Fetching. Controlling is a function of management that helps to check errors in order to take corrective actions. When referring to data or a storage device, writing is taking information and moving it to an alternate location.

24

The ALU of a computer responds to the commands coming from

A) Primary memory B) Control section C) External memory D) Cache memory

Answer: Option B
Solution: Control section commands are responded by the Arithmetic and Logical Unit of the computer.

25

An error in software or hardware is called a bug. What is the alternative computer jargon for it?

A) Leech B) Squid C) Slug D) Glitch

Answer: Option D
Solution: Glitch is the alternative computer jargon for it. A glitch is a short-lived fault in a system, such as a transient fault that corrects itself, making it difficult to troubleshoot.

26

The vast network of computers that connects millions of people all over the world is called.

A) LAN B) Web C) Hypertext D) Internet

Answer: Option D
Solution: The Internet is a vast network that connects many independent networks and links computers at different locations. It enables computer users throughout the world to communicate and to share information in a variety of ways.

27

Resolution of laser printer is specified in terms of

A) DPI B) LPM C) CPM D) PPM

Answer: Option A
Solution: DPI = Dots Per Inch. Dots per inch is a measure of spatial printing or video or image scanner dot density, in particular the number of individual dots that can be placed in a line within the span of 1 inch.

28

A byte represents a group of

A) 10 bits B) 40 bits C) 8 bits D) 22 bits

Answer: Option C
Solution: It is an abbreviation for binary term, a unit of storage capable of holding a single character. One byte is a grouping of eight bits.

29

Personal computers use a number of chips mounted on a main circuit board. What is the common name for such boards?

A) Daughter board B) Motherboard C) Father board D) Breadboard

Answer: Option B
Solution: A motherboard is the main printed circuit board (PCB) in general-purpose computers and other expandable systems.

30

What is meant by a dedicated computer?

A) Which is used by one person only B) Which is assigned one and only one task C) Which uses one kind of software D) Which is meant for application software

Answer: Option B
Solution: A dedicated server is a single computer in a network reserved for serving the needs of the network. For example, some networks require that one computer be set aside to manage communications between all the other computers.

31

Which key on keyboard of a computer does not have its name printed on the key?

A) ESC B) SHIFT C) F1 D) SPACE

Answer: Option D
Solution: The space key does not have any thing printed on it. It is also a longest key on the keyboard.

32

Where would you find the letters QWERTY?

A) Mouse B) Screen C) Numeric Keypad D) Keyboard

Answer: Option D
Solution: It is the most common layout of a keyboard. The name comes from reading the first six keys appearing on the top left letter row of the keyboard ( Q , W , E , R , T , and Y ) from left to right.

33

How did the computer mouse get its name?

A) Its cable looks like a tail. B) Because it squeaks when moved C) It has ears. D) Teeth outside mouth.

Answer: Option A
Solution: In 1968, a man named Douglas Engelbart created this special tool to help people control their computers. It was a small wooden block on wheels, and there was a long cable sticking out of the back, kind of a tail. One of the researchers helping Mr. Douglas Engelbart with his creation called the tool a mouse.

34

A digitizing tablet can be used for?

A) Tracing diagrams B) Printing letters C) Reading bar-codes D) Playing

Answer: Option A
Solution: A digitizer tablet (also known as a digitizer or graphics tablet) is a tool used to convert hand-drawn images into a format suitable for computer processing. Images are usually drawn onto a flat surface with a stylus and then appear on a computer monitor or screen. Digitizer tablets can also be used as an input device, receiving information represented in drawings and sending output to a CAD (computer aided design) application and PC-based software like Auto-CAD.

35

Which of the following is a pointing device?

A) Hard disk B) CD-ROM drive C) Touch screen used for computer input. D) RAM

Answer: Option C
Solution: A pointing device is an input interface that allows a user to input data to a computer using physical gestures - point, click, and drag. Touch screen is also used to give an input.

36

What does a light pen contain?

A) Refillable ink B) Light sensitive elements C) Pencil lead D) Blue Ink

Answer: Option B
Solution: A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's CRT display.

37

What would be the best way to move around a 3D environment?

A) Use a tracker ball B) Use a keyboard C) Use a space mouse D) Use Joystick

Answer: Option A
Solution: A trackball is a mouse like devices which work as a mouse but differently.

38

Where would you find a magnetic strip?

A) Speakers B) Credit card C) Smart card D) All of the above

Answer: Option B
Solution: The stripe on the back of a credit card is a magnetic stripe, often called a magstripe. The magstripe is made up of tiny iron-based magnetic particles in a plastic-like film. Each particle is really a very tiny bar magnet about 20 millionths of an inch long.

39

Hard copy is a term used to describe?

A) Printed output B) Writing on a hard board C) Storing information on the hard disk D) All of the above

Answer: Option A
Solution: A hard copy is a printed copy of information from a computer. Sometimes referred to as a printout, a hard copy is so-called because it exists as a physical object. The same information, viewed on a computer display or sent as an e-mail attachment, is sometimes referred to as a soft copy.

40

What do the abbreviations VAB stand for?

A) Voice activated broadcasting B) Visual audio board C) Voice answer back D) None of these

Answer: Option C
Solution: VAB = Voice Answer Back.

41

What are the individual dots which make up a picture on the monitor screen called?

A) Colored spots B) Pixies C) Pixels D) None of these

Answer: Option C
Solution: The basic unit of programmable color on a computer display or in a computer image. Pixel is also define as dots per inch, which indicates the resolution of a image. Higher the dots per inch, higher the resolution of the image. A common resolution for laser printers is 600 dots per inch. This means 600 dots across and 600 dots down, so there are 360,000 dots per square inch.

42

A daisy wheel is a type of?

A) Storage device B) Pointing device C) Scaning Device D) Printer

Answer: Option D
Solution: A type of printer that produces letter-quality type. A daisy-wheel printer works on the same principle as a ball-head typewriter. The daisy wheel is a disk made of plastic or metal on which characters stand out in relief along the outer edge. To print a character, the printer rotates the disk until the desired letter is facing the paper. Then a hammer strikes the disk, forcing the character to hit an ink ribbon, leaving an impression of the character on the paper. You can change the daisy wheel to print different fonts.

43

Factory production lines can be automated using?

A) Machine tools B) VDUs C) Plotters D) None of these

Answer: Option B
Solution: A VDU is a machine with a screen which is used to display information from a computer. VDU is an abbreviation for 'visual display unit'.

44

An impact printer creates characters by using?

A) An inked ribbon and print head B) Electrically charged ink C) An ink pen D) All of the above

Answer: Option A
Solution: An impact printer creates characters by using an inked ribbon and print head.

45

What would you not use with a flatbed plotter?

A) A pen B) Eraser C) Paper D) None of these

Answer: Option C
Solution: A flatbed plotter is a device that uses pens to draw graphics and pictures, instead of printing heads, nozzles, and ink cartridges used in typical printers.

46

What do you need for an ink jet printer?

A) A drum B) A cartridge C) A ribbon D) All of the above

Answer: Option B
Solution: Another difference between inkjet and laser printers is that for inkjet printers you only need ink cartridges to print, while for laser printers, you need a toner cartridge and a drum unit. Laser printers always come with a drum unit that transfers the toner powder onto paper.

47

A laser printer does NOT use?

A) A photo-conductive drum B) A print head C) A laser beam D) None of these

Answer: Option B
Solution: A print head is the part of a printer that assembles and maintains the characters to print. It is also the component of an ink jet printer that systematically sprays ink on paper by creating images and text. It is the counterpart of the photoconductive unit or drum unit of the laser printer.

48

The amount of data that a disk may contains known as the disk's?

A) Volume B) Size C) Tracking Unit D) Storage capacity

Answer: Option D
Solution: The total amount of information that a storage device or disc can hold, is known as its storage capacity. It is measure in bits or bytes.

49

You can protect a floppy disk.

A) Read B) Write C) Read and Write D) All of the above

Answer: Option B
Solution: Write protection is one of the helpful safety feature that is in built in 3.5 inch Floppy Disks. In order to ensure that nobody copies files to the 3.5 inch Floppy Disk or delete a file/s from Floppy disk, the 3.5 inch Floppy disk will be write protected.

50

Information on a hard disk is usually backed-up using a?

A) CD-ROM B) Magnetic tape C) Floppy disk D) All of the above

Answer: Option A
Solution: Information on a hard disk is usually backed-up using a CD-ROM.

51

Magnetic storage devices can represent binary 0 by the absence of?

A) A magnetic field B) Magnetic tape C) Static electricity D) It cannot possible.

Answer: Option B
Solution: Magnetic storage devices can represent binary 0 by the absence of Magnetic tape.

52

Magnetic tape is a?

A) Random access medium B) A parallel access medium C) Universal Access medium D) Serial access medium

Answer: Option D
Solution: Most widely used secondary storage devices are magnetic tapes, magnetic disks and floppy disks. It is not directly accessible by the CPU. Computer usually uses its input / output channels to access secondary storage and transfers the desired data using intermediate are a in primary storage.

53

Which storage device has the largest capacity in MB's?

A) A floppy disk B) A CD-ROM C) Magnetic tape storage D) Equal Capacity

Answer: Option B
Solution: Storage Capacity of Floppy Disc = 1.44 Megabytes. Storage Capacity of CD-ROM = 650 Megabytes (Approx.).

54

Which storage device cannot be erased?

A) A floppy disk B) Magnetic tape storage C) A CD-ROM D) All of the above

Answer: Option C
Solution: A CD-ROM, is a pre-pressed optical compact disc which contains data. The name is an acronym which stands for Compact Disc Read-Only Memory. Computers can read CD-ROMs, but cannot write to CD-ROMs which are not writable or erasable.

55

Which of the following languages is more suited to a structured program?

A) PL/1 B) FORTRAN C) BASIC D) PASCAL E) None of the above

Answer: Option D
Solution: PASCAL languages is more suited to a structured program. Pascal is an imperative and procedural programming language, which Niklaus Wirth designed in 1968–69 and published in 1970, as a small, efficient language intended to encourage good programming practices using structured programming and data structuring. It is named in honor of the French mathematician, philosopher and physicist Blaise Pascal.

56

A computer assisted method for the recording and analyzing of existing or hypothetical systems is

A) Data transmission B) Data flow C) Data capture D) Data processing E) None of the above

Answer: Option B
Solution: A computer assisted method for the recording and analyzing of existing or hypothetical systems is Data flow

57

The brain of any computer system is

A) ALU B) Memory C) CPU D) Control unit E) None of the above

Answer: Option C
Solution: The brain of any computer system is CPU. CPU : A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.

58

What difference does the 5 th generation computer have from other generation computers?

A) Technological advancement B) Scientific code C) Object Oriented Programming D) All of the above E) None of the above

Answer: Option A
Solution: The term "fifth generation" was intended to convey the system as being advanced. Whereas previous computer generations had focused on increasing the number of logic elements in a single CPU, the fifth generation, it was widely believed at the time, would instead turn to massive numbers of CPUs for added performance.

59

Which of the following computer language is used for artificial intelligence?

A) FORTRAN B) PROLOG C) C D) COBOL E) None of the above

Answer: Option B
Solution: Prolog, Python, Lisp, Java, and C++ are major AI programming language used for artificial intelligence capable of satisfying different needs in development and designing of different software. Prolog : Prolog is a declarative language where programs are expressed in terms of relations, and execution occurs by running queries over these relations. Prolog is particularly useful for symbolic reasoning, database and language parsing applications. Prolog is widely used in AI today.

60

The tracks on a disk which can be accessed without repositioning the R/W heads is

A) Surface B) Cylinder C) Cluster D) All of the above E) None of the above

Answer: Option B
Solution: The tracks on a disk which can be accessed without repositioning the R/W heads is Cylinder

61

Which of the following is the 1's complement of 10?

A) 1 B) 110 C) 11 D) 10 E) None of the above

Answer: Option A
Solution: 1's complement of binary number 1011001 is 0100110. We can find the 2's complement of the binary number by changing each bit (0 to 1 and 1 to 0) and adding 1 to the least significant bit.

62

A section of code to which control is transferred when a processor is interrupted is known as

A) M B) SVC C) IP D) MDR E) None of the above

Answer: Option A
Solution: Whenever there is an interrupt to the sequential instruction execution then the processors loads its program counter with the starting location of a routine which contains code to execute the interrupt. This location where the part of code is stored is called interrupt service routine (ISR). The processor executes the ISR and returns to the next instruction of the main program.

63

Which part interprets program instructions and initiate control operations.

A) Input B) Storage unit C) Logic unit D) Control unit E) None of the above

Answer: Option D
Solution: Control unit interprets program instructions and initiate control operations

64

The binary system uses powers of

A) 2 B) 10 C) 8 D) 16 E) None of the above

Answer: Option A
Solution: Binary representation, just because it only uses two digits has an interesting interpretation. Binary representation of a number is a sum of powers of 2. A power of two is included into the sum if the corresponding digit in the representation is 1.

65

A computer program that converts assembly language to machine language is

A) Compiler B) Interpreter C) Assembler D) Comparator E) None of the above

Answer: Option C
Solution: A computer program that converts assembly language to machine language is Assembler. Assembler : An assembler is a type of computer program that interprets software programs written in assembly language into machine language, code and instructions that can be executed by a computer. An assembler enables software and application developers to access, operate and manage a computer's hardware architecture and components.

66

The time required for the fetching and execution of one simple machine instruction is

A) Delay time B) CPU cycle C) Real time D) Seek time E) None of the above

Answer: Option B
Solution: The time required for the fetching and execution of one simple machine instruction is CPU cycle time.

67

The time for which a piece of equipment operates is called

A) Seek time B) Effective time C) Access time D) Real time E) None of the above

Answer: Option B
Solution: Effective Time make more sense here. Given an equipment that you are working on, how long will it work for is its effective usage time.

68

Binary numbers need more places for counting because

A) They are always big numbers B) Any no. of 0's can be added in front of them C) Binary base is small D) 0's and l's have to be properly spaced apart E) None of the above

Answer: Option C
Solution: The binary number system is an alternative to the decimal number system that we use every day. Binary numbers are important because using them instead of the decimal system simplifies the design of computers and related technologies.

69

Which access method is used for obtaining a record from a cassette tape?

A) Direct B) Sequential C) Random D) All of the above E) None of the above

Answer: Option B
Solution: The standard method for accessing files and devices is the sequential method. It can be like a cassette tape that rewinds itself after every use.

70

Any type of storage that is used for holding information between steps in its processing is

A) CPU B) Primary storage C) Intermediate storage D) Internal storage E) None of the above

Answer: Option C
Solution: Secondary storage (also known as external memory or auxiliary storage), differs from primary storage in that it is not directly accessible by the CPU. The computer usually uses its input/output channels to access secondary storage and transfers the desired data using intermediate area in primary storage.

71

A name applied by Intel corp. to high speed MOS technology is called

A) HDLC B) LAP C) HMOS D) SDLC E) None of the above

Answer: Option C
Solution: A name applied by Intel Corp. to high-speed MOS technology, usually NMOS although it can be used in CMOS. HMOS implies both a short channel between source and drain, and also design (layout) rules that deal with minimum feature size of less than two micrometers.

72

A program component that allows structuring of a program in an unusual way is known as

A) Correlation B) Coroutine C) Diagonalization D) Quene E) None of the above

Answer: Option B
Solution: A program component that allows structuring of a program in an unusual way is known as coroutine. Coroutine : Coroutines are computer-program components that generalize subroutines for non-preemptive multitasking, by allowing multiple entry points for suspending and resuming execution at certain locations.

73

The radian of a number system

A) Is variable B) Has nothing to do with digit position value C) Equals the number of its distinct counting digits D) Is always an even number E) None of the above

Answer: Option C
Solution: The radian of a number system equals the number of its distinct counting digits. For example suppose we have a no 155, the number have two distinct digit i.e. 1 and 5 so the radian of the number is two.

74

The section of the CPU that selects, interprets and sees to the execution of program instructions

A) Memory B) Register unit C) Control unit D) ALU E) None of the above

Answer: Option C
Solution: The control unit of the central processing unit regulates and integrates the operations of the computer. It selects and retrieves instructions from the main memory in proper sequence and interprets them so as to activate the other functional elements of the system at the appropriate moment.

75

Which type of system puts the user into direct conversation with the computer through a keyboard?

A) Real time processing B) Interactive computer C) Batch processing D) Time sharing E) None of the above

Answer: Option B
Solution: In computer science, interactive computing refers to software which accepts input from humans as it runs. Interactive software includes most popular programs, such as word processors or spreadsheet applications.

76

The term referring to evacuating the content of some part of the machine is known as

A) Dump B) Enhancement C) Down D) Compiler E) None of the above

Answer: Option A
Solution: The term referring to evacuating the content of some part of the machine is known as Dump. In computing, a core dump, memory dump, crash dump, storage dump, system dump or ABEND dump consists of the recorded state of the working memory of a computer program at a specific time, generally when the program has crashed or otherwise terminated abnormally. On many operating systems, a fatal exception in a program automatically triggers a core dump. By extension, the phrase "to dump core" has come to mean in many cases, any fatal error, regardless of whether a record of the program memory exists. The term "core dump", "memory dump", or just "dump" has also become jargon to indicate any output of a large amount of raw data for further examination or other purposes.

77

A single packet on a data link is known as

A) Path B) Frame C) Block D) Group E) None of the above

Answer: Option B
Solution: A single packet on a data link is known as frame Packet switching. In the OSI model of computer networking, a frame is the protocol data unit at the data link layer. Frames are the result of the final layer of encapsulation before the data is transmitted over the physical layer.

78

The process of communicating with a file from a terminal is

A) Interactive B) Interrogation C) Heuristic D) All of the above E) None of the above

Answer: Option B
Solution: The process of communicating with a file from a terminal is Interrogation.

79

A common boundary between two systems is called

A) Interdiction B) Interface C) Surface D) None of the above

Answer: Option B
Solution: A common boundary between two systems is called Interface

80

The examination and changing of single bits or small groups of his within a word is called

A) Bit B) Byte C) Bit manipulation D) Bit slice E) None of the above

Answer: Option C
Solution: Bit manipulation : Bit manipulation is the act of algorithmically manipulating bits or other pieces of data shorter than a word. Computer programming tasks that require bit manipulation include low-level device control, error detection and correction algorithms, data compression, encryption algorithms, and optimization.

81

Which computer has been designed to be as compact as possible?

A) Mini B) Super computer C) Micro computer D) Mainframe E) None of the above

Answer: Option C
Solution: Micro computer : A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit. It includes a microprocessor, memory, and minimal input/output circuitry mounted on a single printed circuit board.

82

Which method is used to connect a remote computer?

A) Device B) Dialup C) Diagnostic D) Logic circuit E) None of the above

Answer: Option B
Solution: Dialup : Dial-up Internet access is a form of Internet access that uses the facilities of the public switched telephone network (PSTN) to establish a connection to an Internet service provider (ISP) by dialing a telephone number on a conventional telephone line.

83

How many bit code is used by Murray code for TELEPRINTER machines.

A) 4 B) 5 C) 9 D) 25 E) None of the above

Answer: Option B
Solution: 5 bit code is used by Murray code for TELEPRINTER machines.

84

The symbols used in an assembly language are

A) Codes B) Mnemonics C) Assembler D) All of the above E) None of the above

Answer: Option B
Solution: In programming, it is a name assigned to a machine function. For example, COM1 is the mnemonic assigned to serial port #1 on a PC. Programming languages are almost entirely mnemonics. For example, in x86 assembly language, CMP is used to represent the "compare" instruction and JE for "jump if equal."

85

The 2's complement of a binary no. is obtained by adding.....to its 1's complement.

A) 0 B) 1 C) 10 D) 12 E) None of the above

Answer: Option B
Solution: Two's complement of a binary number is obtained by adding one to the one's complement of a binary number i.e. 1's complement + 1. One's complement of a binary number is obtained by reversing the digits of the binary number i.e. transforming 1 with 0 and 0 with 1.

86

A systems programming language for microcomputers in the Intel family is

A) PL/C B) PL/CT C) PL/M D) PLA E) None of the above

Answer: Option C
Solution: The PL/M programming language is a high-level language conceived and developed by Gary Kildall in 1973 for Hank Smith at Intel for its microprocessors. The language incorporated ideas from PL/I, ALGOL and XPL, and had an integrated macro processor.

87

A datum that indicates some important state in the content of input or output is

A) Sequence B) Sentinel C) SIO D) Sibling E) None of the above

Answer: Option B
Solution: A datum that indicates some important state in the content of input or output is sentinel . The main concern of the Sentinel System is evaluating whether patients are having an unexpected adverse event from a medical product.

88

Which is a non-standard version of a computing language?

A) PROLOG B) APL C) Army D) PL/1 E) None of the above

Answer: Option C
Solution: Army is non standard version of a computing language because it is first language to be used for encoding & decoding purposes.

89

Which of the following is still useful for adding numbers?

A) EDSAC B) ENIAC C) Abacus D) UNIVAC E) None of the above

Answer: Option C
Solution: Abacus : An abacus is a manual aid to calculating that consists of beads or disks that can be moved up and down on a series of sticks or strings within a usually wooden frame. The abacus itself doesn't calculate; it's simply a device for helping a human being to calculate by remembering what has been counted.

90

The average time necessary for the correct sector of a disk to arrive at the read write head is ________ .

A) Down time B) Seek time C) Rotational delay D) Access time E) None of the above

Answer: Option C
Solution: Rotational delay : A rotational delay is the amount of time between information requests and how long it takes the hard drive to move to the sector where the requested data is located. In other words, it is a time measurement, in milliseconds (ms), of how long before a rotating drive can transfer data.

91

A number that is used to control the form of another number is known as

A) Map B) Mask C) Mamtossa D) Marker E) None of the above

Answer: Option B
Solution: A number that is used to control the form of another number is known as mask.

92

A general purpose single-user microcomputer designed to be operated by one person at a time is

A) Special-purpose computer B) KIPS C) M D) PC E) None of the above

Answer: Option D
Solution: A personal computer is a general-purpose computer whose size, capabilities and original sale price make it useful for individuals and is intended to be operated directly by an end-user with no intervening computer operator.

93

ASCII stands for

A) American standard code for information interchange B) All purpose scientific code for information interchange C) American security code for information interchange D) American Scientific code for information interchange E) None of the above

Answer: Option A
Solution: ASCII, abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices. Most modern character-encoding schemes are based on ASCII, although they support many additional characters.

94

Which device of computer operation dispenses with the use of the keyboard?

A) Joystick B) Light pen C) Mouse D) Touch E) None of the above

Answer: Option C
Solution: Mouse : A computer mouse with the most common features: two buttons (left and right) and a scroll wheel, which can also act as a third button. A computer mouse is a hand-held pointing device that detects two-dimensional motion relative to a surface. This motion is typically translated into the motion of a pointer on a display, which allows a smooth control of the graphical user interface. The first public demonstration of a mouse controlling a computer system was in 1968. Originally wired to a computer, many modern mouse are cordless, relying on short-range radio communication with the connected system. Mouse originally used a ball rolling on a surface to detect motion, but modern mouse often have optical sensors that have no moving parts. In addition to moving a cursor, computer mouse have one or more buttons to allow operations such as selection of a menu item on a display. Mouse often also feature other elements, such as touch surfaces and "wheels", which enable additional control and dimensional input.

95

The microcomputer, Intel MCS-80 is based on the widely used Intel

A) 8080 microprocessor B) 8085 microprocessor C) 8086 microprocessor D) 8082 microprocessor E) None of the above

Answer: Option A
Solution: Intel MCS-80 is based on the widely used Intel 8080 microprocessor The MCS-80 (Micro Computer Set-80) was a family of 8-bit microprocessor chipsets developed by Intel. Introduced on April, 1974, the MCS-80 featured the 8080 CPU, the forefather of all modern x86-based microprocessors.

96

Which is a machine-oriented high-level language for the GEC 4080 series machines.

A) LOGO B) SNOBOL C) Babbage D) ALGOL E) None of the above

Answer: Option C
Solution: Programming languages available included Babbage (a high-level assembly language) The GEC 4000 was a series of 16/32-bit minicomputers produced by GEC Computers Ltd. of the UK during the 1970s, 1980s and early 1990s.

97

A program that is employed in the development, repair or enhancement of other programs is known as

A) System software B) Software tool C) Applications program D) Utility program E) None of the above

Answer: Option B
Solution: A programming tool or software development tool is a computer program that software developers use to create, repair, debug, maintain, or otherwise support other programs and applications.

98

Any storage device added to a computer beyond the immediately usable main storage is known as

A) Floppy disk B) Hard disk C) Backing store D) Punched card E) None of the above

Answer: Option C
Solution: Backing store : The term backing storage refers to any non-volatile data storage that will retain a computer's data even after the computer is powered off. Common types of backing storage devices are hard drives, SSD, external hard disk drives, optical media such as CD or DVD, and flash media such as thumbdrives and memory sticks.

99

Which output device is used for translating information from a computer into pictorial form on paper.

A) Mouse B) Plotter C) Touch panel D) Card punch E) None of the above

Answer: Option B
Solution: Plotter : The plotter is a computer printer for printing vector graphics. In the past, plotters were used in applications such as computer-aided design, though they have generally been replaced with wide-format conventional printers. A plotter gives a hard copy of the output. It draws pictures on a paper using a pen.

100

The list of coded instructions is called

A) Computer program B) Algorithm C) Flowchart D) Utility programs E) None of the above

Answer: Option A
Solution: Computer program : A computer program is a collection of instructions that performs a specific task when executed by a computer. A computer requires programs to function. A computer program is usually written by a computer programmer in a programming language.

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