Information and Communication Technology MCQ

731. This number system has a symbol to represent each of the values 0-15?

Correct Answer: Correct answer is: (C) Hexadecimal Number System.

Exam Relevance: SAT, ACT, AP Computer Science

Difficulty: Easy

Concept notes: The Hexadecimal Number System uses 16 distinct symbols to represent values from 0 to 15.

Common Mistakes: Students may confuse the Hexadecimal system with the Binary or Decimal systems, which use fewer symbols.

Explanations: The Hexadecimal Number System is designed to represent values from 0 to 15 using a unique symbol for each value. This includes the digits 0-9 and the letters A-F to represent 10-15. Therefore, it is the only system among the options that has a symbol for each value from 0 to 15.

Option Analysis:

Option A: The Binary Number System only uses two symbols, 0 and 1, to represent all values.
Option B: The Decimal Number System uses ten symbols, 0 through 9, to represent values.
Option C: The Hexadecimal Number System uses sixteen symbols, 0 through 9 and A through F, to represent values from 0 to 15.
Option D: The Octal Number System uses eight symbols, 0 through 7, to represent values.

Mnemonic: Hexadecimal: "Hex" for 6, plus 10, equals 16 symbols.

732. The shortcut combination to cut is.....

Correct Answer: Correct answer is: (A) CTRL-X.

Exam Relevance: SAT, ACT, Computer Science Exams

Difficulty: Very Easy

Concept notes: The shortcut combination to cut text or files in most computer systems is CTRL-X.

Common Mistakes: Students may confuse the shortcut for cut (CTRL-X) with the shortcut for copy (CTRL-C).

Explanations: The correct answer is CTRL-X because it is the standard keyboard shortcut used to cut text or files in most operating systems and applications. This shortcut is widely recognized and used for removing selected content and placing it in the clipboard for later pasting.

Option Analysis:

Option A: Correct. CTRL-X is the standard shortcut for cutting text or files.
Option B: Incorrect. CTRL-C is the shortcut for copying, not cutting.
Option C: Incorrect. Only CTRL-X is the correct shortcut for cutting.
Option D: Incorrect. CTRL-X is indeed the correct shortcut for cutting.

Mnemonic: Cut = X-tract

733. A term associated with the comparison of processing speeds of different computer system is:

Correct Answer: Correct answer is: (C) MIPS (a unit of computing speed equivalent to a million instructions per second).

Exam Relevance: Computer Science, Engineering, IT Certification Exams

Difficulty: Moderate

Concept notes: MIPS stands for Millions of Instructions Per Second and is a measure of a computer's processing speed.

Common Mistakes: Students may confuse MIPS with other performance metrics like GHz or FLOPS.

Explanations: MIPS is a unit used to measure the processing speed of a computer system. It quantifies the number of instructions a processor can execute in one second, with one MIPS equating to one million instructions per second. This makes it a relevant term for comparing the processing speeds of different computer systems.

Option Analysis:

Option A: EFTS is not a standard term for measuring computer processing speed.
Option B: MPG is a measure of fuel efficiency in vehicles, not related to computing speed.
Option C: MIPS is the correct term for measuring processing speed in millions of instructions per second.
Option D: CPS typically refers to characters per second, not a measure of processing speed.

Mnemonic: MIPS: Millions Instruction Processing Speed

734. .....are the summarised version of slides that display only titles and main text.

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

Exam Relevance: SAT, ACT, AP Exams

Difficulty: Easy

Concept notes: Outlines are summaries that display only titles and main text, often used in presentations to provide a quick overview of the content.

Common Mistakes: Students may confuse outlines with speaker notes, which contain additional details and cues for the presenter, not just titles and main text.

Explanations: Outlines are the summarised version of slides that display only titles and main text. This format is useful for quickly reviewing the key points of a presentation without the detailed content.

Option Analysis:

Option A: Correct. Outlines display only titles and main text, which is the summarised version of slides.
Option B: Incorrect. Speaker notes contain additional details and cues for the presenter, not just titles and main text.
Option C: Incorrect. Slide sorter is a view in presentation software that shows all slides as thumbnails, not a summarised version of titles and main text.
Option D: Incorrect. This option is not applicable as the correct answer is provided by Option A.

735. In Access press CTRL+W or CTRL+F4 to

Correct Answer: Correct answer is: (C) Close the active window.

Exam Relevance: Microsoft Office Specialist, CompTIA A+, High School Computer Science Exams

Difficulty: Easy

Concept notes: In Microsoft Access, the keyboard shortcuts CTRL+W and CTRL+F4 are used to close the active window.

Common Mistakes: Students may confuse these shortcuts with other keyboard shortcuts in Access, such as those for displaying menus.

Explanations: The correct answer is that pressing CTRL+W or CTRL+F4 in Access closes the active window. This is a standard keyboard shortcut in Access for closing windows, which helps users efficiently manage their workspace.

Option Analysis:

Option A: This is incorrect because CTRL+W and CTRL+F4 do not display the Control menu. The Control menu is typically accessed through the window's title bar or other means.
Option B: This is incorrect because CTRL+W and CTRL+F4 do not display the shortcut menu. The shortcut menu is usually accessed by right-clicking or using a specific key combination like Shift+F10.
Option C: This is correct because pressing CTRL+W or CTRL+F4 in Access will close the active window.
Option D: This is incorrect because the correct action is specified in option C.

736. Compilers and interpreters are themselves:.....?

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

Exam Relevance: Computer Science, Programming Fundamentals, Software Engineering

Difficulty: Easy

Concept notes: Compilers and interpreters are software tools that translate high-level programming languages into machine code or execute code directly. They are themselves programs written in a programming language.

Common Mistakes: Students may confuse compilers and interpreters with the languages they process, rather than recognizing them as programs themselves.

Explanations: Compilers and interpreters are software tools that convert high-level programming languages into machine code or execute code directly. These tools are themselves programs, written in a programming language. They are not high-level languages, codes, or mnemonics, but rather executable programs designed to process other programs.

Option Analysis:

Option A: High-level language is incorrect because compilers and interpreters are not languages but programs that process languages.
Option B: Codes is incorrect because codes refer to the source code written in a programming language, not the tools that process the code.
Option C: Programs is correct because compilers and interpreters are software programs designed to process other programs.
Option D: Mnemonics is incorrect because mnemonics are memory aids, not software tools.

737. Which of the following is NOT a secondary storage device?

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

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: RAM (Random Access Memory) is a primary storage device, not a secondary storage device.

Common Mistakes: Students may confuse RAM with secondary storage devices like hard drives or CDs.

Explanations: RAM is a primary storage device used for temporary data storage and is volatile, meaning it loses data when power is turned off. Secondary storage devices, such as CDs and floppy discs, are used for long-term data storage and are non-volatile.

Option Analysis:

Option A: RAM is a primary storage device, not a secondary storage device.
Option B: CD is a secondary storage device used for long-term data storage.
Option C: Floppy magnetic discs are secondary storage devices used for long-term data storage.
Option D: ROM (Read-Only Memory) is a type of primary storage device, but it is not a secondary storage device.

Mnemonic: RAM: Random Access Memory, not secondary.

738. What bus transfers data to and from the processor?

Correct Answer: Correct answer is: (A) Data Bus.

Exam Relevance: Computer Architecture, Digital Electronics, Computer Science Exams

Difficulty: Easy

Concept notes: The Data Bus is responsible for transferring data to and from the processor.

Common Mistakes: Students may confuse the Data Bus with the Address Bus, which is used for specifying memory addresses rather than transferring data.

Explanations: The Data Bus is specifically designed to transfer data between the processor and other components such as memory and input/output devices. The Address Bus is used to specify the memory addresses, and the Control Bus is used to send control signals. Therefore, the Data Bus is the correct choice for data transfer.

Option Analysis:

Option A: Correct. The Data Bus is used for transferring data to and from the processor.
Option B: Incorrect. The Address Bus is used for specifying memory addresses, not for data transfer.
Option C: Incorrect. The Control Bus is used for sending control signals, not for data transfer.
Option D: Incorrect. This option is not applicable as the Data Bus is the correct answer.

Mnemonic: Data Bus: "Data moves, Bus transports."

739. .....programs perform day to day tasks related to the maintenance of the computer system.

Correct Answer: Correct answer is: (A) System Utilities.

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: System utilities are programs designed to help manage and maintain the computer system, performing tasks such as disk cleanup, defragmentation, and system updates.

Common Mistakes: Students may confuse system utilities with application software, which are programs designed to perform specific tasks for the user, such as word processing or web browsing.

Explanations: System utilities are specifically designed to perform day-to-day tasks related to the maintenance of the computer system. They are essential for keeping the system running smoothly and efficiently. Application software, on the other hand, is designed to perform specific tasks for the user, such as creating documents or browsing the internet. Language translators are programs that convert code from one programming language to another, which is not related to system maintenance.

Option Analysis:

Option A: Correct. System utilities perform tasks related to the maintenance of the computer system.
Option B: Incorrect. Language translators convert code from one programming language to another, not perform system maintenance.
Option C: Incorrect. Application software performs specific tasks for the user, not system maintenance.
Option D: Incorrect. Not all the options are correct.

740. Which of the following is a part of Process Control Block(PCB)?

Correct Answer: Correct answer is: (D) Process State.

Exam Relevance: Operating Systems, Computer Architecture, Systems Programming

Difficulty: Moderate

Concept notes: The Process Control Block (PCB) is a data structure used by the operating system to store information about a process. It contains various attributes and states of a process.

Common Mistakes: Students often confuse the components of the PCB with other system metrics like access time or response time, which are not part of the PCB.

Explanations: The Process State is a critical component of the PCB as it indicates the current state of the process (e.g., running, ready, blocked). This information is essential for the operating system to manage and schedule processes effectively. Access Time, Response Time, and Random Time are not components of the PCB; they are performance metrics related to system operations.

Option Analysis:

Option A: Access Time is not a part of the PCB. It refers to the time taken to access data from a storage device.
Option B: Response Time is not a part of the PCB. It is the time taken from the submission of a request until the first response is received.
Option C: Random Time is not a part of the PCB. It is not a standard term used in the context of process management.
Option D: Process State is a part of the PCB. It indicates the current state of the process, which is crucial for process management.

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3 thoughts on “Information and Communication Technology MCQ - Set 74”

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 74”

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