Information and Communication Technology MCQ

51. The term 'Pentium' is related to what?

Correct Answer: Correct answer is: (C) Microprocessor.

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: The term 'Pentium' is associated with a series of microprocessors developed by Intel.

Common Mistakes: Students may confuse 'Pentium' with other computer hardware components like the mouse or hard disk.

Explanations: The term 'Pentium' refers to a series of microprocessors developed by Intel. Microprocessors are the central processing units (CPUs) that perform most of the processing inside a computer. The Pentium series was introduced in the mid-1990s and became widely recognized as a significant advancement in microprocessor technology.

Option Analysis:

Option A: The mouse is a pointing device used to control the cursor on a computer screen, not a microprocessor.
Option B: The hard disk is a storage device used to store data, not a microprocessor.
Option C: The Pentium is a series of microprocessors developed by Intel, making this the correct answer.
Option D: A DVD is a digital optical disc storage format, not a microprocessor.

Mnemonic: Pentium = Intel's Powerful Processor

52. Which of the following domains is used by government?

Correct Answer: Correct answer is: (B) .gov.

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: The .gov domain is specifically designated for government entities in the United States.

Common Mistakes: Students may confuse .gov with .org, which is often used by non-profit organizations.

Explanations: The .gov domain is reserved for use by government entities, making it the correct choice for identifying government websites. Other domains like .org and .com are not exclusively used by government organizations.

Option Analysis:

Option A: .org is typically used by non-profit organizations, not government entities.
Option B: .gov is the correct domain for government entities.
Option C: .com is generally used by commercial entities, not government organizations.
Option D: All the above is incorrect because only .gov is used by government entities.

Mnemonic: Remember: "Government uses .gov, not .com or .org."

53. In computer knowledge Which of the following performs modulation and demodulation?

Correct Answer: Correct answer is: (C) Modem.

Exam Relevance: CCNA, CompTIA A+, GCE A-Level Computing

Difficulty: Easy

Concept notes: A modem is a device that performs modulation and demodulation to enable data transmission over analog communication channels.

Common Mistakes: Students may confuse the function of a modem with other network devices like coaxial cables or optical fibers, which are used for data transmission but do not perform modulation and demodulation.

Explanations: A modem converts digital data into analog signals for transmission over analog communication channels, such as telephone lines. This process is called modulation. Upon receiving the analog signal, the modem converts it back into digital data, a process known as demodulation. Coaxial cables, satellites, and optical fibers are used for data transmission but do not perform modulation and demodulation.

Option Analysis:

Option A: Coaxial cable is a type of cable used for transmitting data but does not perform modulation and demodulation.
Option B: Satellite is a communication medium used for transmitting data but does not perform modulation and demodulation.
Option C: Modem is the correct answer as it performs modulation and demodulation.
Option D: Optical fiber is a medium for transmitting data but does not perform modulation and demodulation.

Mnemonic: Modem: Modulate, Demodulate

54. Pick out the wrong statement.

Correct Answer: Correct answer is: (D) Computer main memory can be accessed only sequentially.

Exam Relevance: GRE, GMAT, Computer Science Exams

Difficulty: Moderate

Concept notes: Main memory, also known as RAM, can be accessed randomly, not sequentially.

Common Mistakes: Students often confuse the access methods of different types of memory, such as RAM and sequential storage devices.

Explanations: The statement "Computer main memory can be accessed only sequentially" is incorrect. Main memory, or RAM, allows for random access, meaning any location in memory can be accessed directly without the need to access preceding locations. This is in contrast to sequential access memory, such as magnetic tape, where data must be accessed in a specific order.

Option Analysis:

Option A: Correct. Information in RAM can be changed by overwriting it.
Option B: Correct. Information in ROM is typically read-only and cannot be changed by overwriting.
Option C: Correct. Information can be stored in any location of RAM.
Option D: Incorrect. Main memory can be accessed randomly, not sequentially.

Mnemonic: RAM: Random Access Memory

55. A string of eight 0s and 1s is called a:

Correct Answer: Correct answer is: (B) Byte.

Exam Relevance: AP Computer Science, SAT Subject Test in Computer Science

Difficulty: Easy

Concept notes: A byte is a unit of digital information that consists of eight bits.

Common Mistakes: Students may confuse the term "byte" with other units of digital information such as megabyte, kilobyte, or gigabyte, which are much larger units.

Explanations: A byte is defined as a sequence of eight bits, where each bit can be either a 0 or a 1. This makes a byte the smallest unit of data that can be addressed in most computer systems. Therefore, a string of eight 0s and 1s is called a byte.

Option Analysis:

Option A: A megabyte is a much larger unit of digital information, equal to 1,048,576 bytes.
Option B: A byte is a unit of digital information that consists of eight bits.
Option C: A kilobyte is a unit of digital information, equal to 1,024 bytes.
Option D: A gigabyte is a much larger unit of digital information, equal to 1,073,741,824 bytes.

Mnemonic: Byte = 8 bits, think "Byte" as "By 8".

56. Resolving errors in a program is known as.....

Correct Answer: Correct answer is: (A) Debugging.

Exam Relevance: AP Computer Science, A Level Computing, IB Computer Science

Difficulty: Easy

Concept notes: Debugging is the process of identifying and removing errors or bugs in a program.

Common Mistakes: Students may confuse debugging with error checking, which is a part of the debugging process but not the entire process.

Explanations: Debugging involves not only identifying errors but also fixing them. Error checking is a step within debugging, but it does not encompass the entire process of resolving errors. Refixing and problem solving are not standard terms used in the context of resolving programming errors.

Option Analysis:

Option A: Correct. Debugging is the process of identifying and fixing errors in a program.
Option B: Incorrect. Refixing is not a standard term used in programming.
Option C: Incorrect. Error checking is part of debugging but does not encompass the entire process.
Option D: Incorrect. Problem solving is a broader term and not specific to resolving programming errors.

Mnemonic: Debugging: Detect, Isolate, Fix, and Test.

57. Any and every command can be found on the

Correct Answer: Correct answer is: (D) Menu bar.

Exam Relevance: GRE, GMAT, IT certification exams

Difficulty: Easy

Concept notes: The menu bar in software applications typically contains a comprehensive list of commands and functions.

Common Mistakes: Students may mistakenly believe that the Drawing, Formatting, or Standard toolbars contain all commands.

Explanations: The menu bar is designed to provide access to all commands and functions within an application. While toolbars like the Drawing, Formatting, and Standard toolbars offer quick access to frequently used commands, they do not encompass every possible command available in the software. The menu bar, however, ensures that any and every command can be found, making it the correct answer.

Option Analysis:

Option A: The Drawing toolbar contains commands related to drawing and graphics, not all commands.
Option B: The Formatting toolbar includes commands for formatting text and objects, but not all commands.
Option C: The Standard toolbar provides common commands, but not every command available in the software.
Option D: The Menu bar contains all commands and functions, making it the correct answer.

58. A programmer is writing a system that is intended to be able to store large amounts of personal data. As the programmer develops the data system, which of the following is LEAST likely to impact the programmer's choice s in designing the structure of the system?

Correct Answer: Correct answer is: (D) The frequency of a particular item occurring in a data set.

Exam Relevance: GRE, MCSE, CISSP

Difficulty: Moderate

Concept notes: The design of a data system involves considerations such as privacy, scalability, and metadata structuring. The frequency of a particular item in a data set is less likely to impact the overall design structure.

Common Mistakes: Students may mistakenly believe that the frequency of data items is crucial for system design, overlooking the broader structural considerations.

Explanations: The design of a data system focuses on broader structural considerations such as maintaining privacy, ensuring scalability, and structuring metadata for analysis. The frequency of a particular item occurring in a data set is more relevant to data analysis and less to the foundational design of the system. Therefore, it is the least likely to impact the programmer's choices in designing the structure of the system.

Option Analysis:

Option A: Privacy is a critical aspect of data system design, as it involves protecting sensitive information.
Option B: Scalability is essential for accommodating growth and ensuring the system can handle increasing amounts of data.
Option C: Structuring metadata is important for organizing and analyzing the data effectively.
Option D: The frequency of a particular item is more relevant to data analysis rather than the foundational design of the system.

59. Which of the ff is a binary coding commonly used in computers?

Correct Answer: Correct answer is: (B) ASCII.

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: ASCII (American Standard Code for Information Interchange) is a binary coding system used to represent text and other characters in computers.

Common Mistakes: Students may confuse ASCII with other coding systems like BCD, EBCDIC, or Baudot, which are also used for encoding but serve different purposes or are less commonly used in modern computing.

Explanations: ASCII is a binary coding system that assigns a unique binary code to each character, including letters, numbers, and symbols. This makes it a common binary coding system used in computers for text representation. The other options, such as BCD, Baudot, and EBCDIC, are also binary coding systems but are not as widely used in modern computing as ASCII.

Option Analysis:

Option A: BCD (Binary-Coded Decimal) is a binary encoding of decimal numbers where each decimal digit is represented by a fixed number of bits, usually four or eight. It is not a general-purpose text encoding system like ASCII.
Option B: ASCII (American Standard Code for Information Interchange) is a binary coding system used to represent text and other characters in computers. It assigns a unique binary code to each character, making it a common binary coding system in modern computing.
Option C: Baudot is an early telegraph code that predates ASCII and is not commonly used in modern computing. It is a 5-bit code and is not as versatile as ASCII.
Option D: EBCDIC (Extended Binary Coded Decimal Interchange Code) is another binary coding system used primarily in IBM mainframe and AS/400 systems. It is not as widely used in modern computing as ASCII.

Mnemonic: ASCII - All Systems Can Interpret Correctly

60. HDD stands for

Correct Answer: Correct answer is: (D) Hard Disk Drive.

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Very Easy

Concept notes: HDD stands for Hard Disk Drive, which is a type of data storage device used in computers and other electronic devices.

Common Mistakes: Students may confuse HDD with other acronyms that start with the same letters, such as High Density Disk or Heavy Duty Diesel.

Explanations: HDD is a widely recognized acronym in the field of computer hardware. It refers to a device that stores and retrieves digital data using magnetic storage. The term "Hard Disk Drive" is the most accurate and commonly used term for this type of storage device.

Option Analysis:

Option A: High Density Disk is not the correct term for HDD.
Option B: Heavy Duty Diesel is unrelated to computer storage.
Option C: Heating Degree Days is a term used in meteorology, not computer hardware.
Option D: Hard Disk Drive is the correct term for HDD.

Mnemonic: HDD: Hard Disk Drive, remember "Drive" for data storage.

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3 thoughts on “Information and Communication Technology MCQ - Set 6”

Peter Ross April 8, 2020

The MCQ is quite entertaining and will help in increasing knowledge also.
Reyaz Ahmad khan December 26, 2020

plz help me in regard with current Affairs
Eshita Nandpal April 11, 2021

Plz give make a part of unit wise

3 thoughts on “Information and Communication Technology MCQ - Set 6”

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