Information and Communication Technology MCQ

901. The question mark (?) indicates in file searching

Correct Answer: Correct answer is: (A) A single character.

Exam Relevance: Computer Science Exams, IT Certification Exams

Difficulty: Very Easy

Concept notes: The question mark (?) in file searching is used to represent a single character wildcard.

Common Mistakes: Students may confuse the question mark with the asterisk (*), which represents multiple characters.

Explanations: In file searching, the question mark (?) is used to match any single character in a file name. For example, "file?.txt" would match "file1.txt", "fileA.txt", but not "file12.txt" because it requires exactly one character to match the question mark.

Option Analysis:

Option A: Correct. The question mark represents a single character in file searching.
Option B: Incorrect. The question mark does not represent a group of characters; it represents a single character.
Option C: Incorrect. The question mark is not used to represent questions in file searching.
Option D: Incorrect. The correct answer is provided in option A.

Mnemonic: QM = Q for Question, M for Match (one character)

902. The windows feature is the ability of computer to automatically configure a new hardware component is that

Correct Answer: Correct answer is: (B) Plug and play.

Exam Relevance: CompTIA A+, Microsoft Certified: Windows Operating System

Difficulty: Easy

Concept notes: Plug and play is a feature that allows a computer to automatically detect and configure new hardware components without user intervention.

Common Mistakes: Students may confuse "Plug and play" with "Auto detect," which is a less specific term and does not encompass the full functionality of automatically configuring hardware.

Explanations: Plug and play is the correct term for the feature that enables a computer to automatically detect and configure new hardware components. This feature simplifies the process of adding new devices to a computer system, as it eliminates the need for manual configuration and driver installation.

Option Analysis:

Option A: Auto detect is a term that refers to the detection of hardware but does not include the automatic configuration aspect.
Option B: Plug and play is the correct term for the feature that automatically detects and configures new hardware components.
Option C: Add remove hardware is a feature that allows users to manually add or remove hardware components, but it does not automatically configure them.
Option D: None of the above is incorrect because Plug and play is a valid and specific feature.

Mnemonic: Plug and play: "Plug it in, and it plays."

903. Macintosh computer use..... Multitasking?

Correct Answer: Correct answer is: (D) Cooperative.

Exam Relevance: Operating Systems, Computer Science Exams, Software Engineering Exams

Difficulty: Moderate

Concept notes: Cooperative multitasking is a method where the operating system allows applications to voluntarily yield control to other tasks.

Common Mistakes: Students may confuse cooperative multitasking with preemptive multitasking, where the operating system forcibly switches between tasks.

Explanations: Macintosh computers use cooperative multitasking, where the operating system relies on applications to voluntarily yield control to other tasks. This contrasts with preemptive multitasking, where the operating system forcibly switches between tasks. In cooperative multitasking, if an application does not yield control, it can monopolize the CPU, leading to system unresponsiveness.

Option Analysis:

Option A: Preemptive multitasking is not used in Macintosh computers as described. In preemptive multitasking, the operating system forcibly switches between tasks, which is not the case here.
Option B: None is incorrect as Macintosh computers do use a form of multitasking.
Option C: Multiprogramming is a broader term and does not specifically describe the multitasking method used in Macintosh computers.
Option D: Cooperative multitasking is the correct method used in Macintosh computers, where applications voluntarily yield control to other tasks.

Mnemonic: Cooperative multitasking: "Cooperate to Share CPU"

904. What are the advantages of a star network?

Correct Answer: Correct answer is: (C) There are no data collisions - maximum performance.

Exam Relevance: CCNA, Network+, CIW

Difficulty: Moderate

Concept notes: In a star network, all devices connect to a central hub or switch, which manages data transmission. This structure minimizes data collisions because the central device controls the flow of data, ensuring that only one device transmits at a time.

Common Mistakes: Students may mistakenly believe that a star network is immune to all types of network failures, including server outages, which can disrupt the entire network.

Explanations: In a star network, the central hub or switch acts as a mediator for all data transmissions. This design ensures that data packets are directed to their intended destinations without interference from other devices. As a result, data collisions are avoided, leading to optimal network performance.

Option Analysis:

Option A: A star network is not necessarily cheap to make, as it requires a central hub or switch and individual connections for each device.
Option B: A star network can still be hacked, as security vulnerabilities can exist in the central hub or individual devices.
Option C: The central hub or switch in a star network manages data flow, preventing data collisions and ensuring maximum performance.
Option D: If the server or central hub goes down, the entire network typically fails, as all devices rely on the central point for communication.

Mnemonic: Star network, central control, no collision.

905. What is meant by the term RAM?

Correct Answer: Correct answer is: (B) Memory which can be both read and written to.

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: RAM stands for Random Access Memory, which is a type of computer memory that can be both read from and written to.

Common Mistakes: Students may confuse RAM with ROM (Read-Only Memory), which can only be read from and not written to.

Explanations: RAM is a type of volatile memory that allows data to be both read and written. This makes it suitable for temporary storage of data and instructions that the CPU needs to access quickly. The ability to both read and write data is a defining characteristic of RAM, distinguishing it from other types of memory like ROM.

Option Analysis:

Option A: Incorrect, as RAM is not limited to read-only operations.
Option B: Correct, as RAM can be both read from and written to.
Option C: Incorrect, as RAM is not used for permanent storage; it is volatile and loses data when power is lost.
Option D: Incorrect, as RAM is not limited to write-only operations.

Mnemonic: RAM: Read and Modify

906. Which printer uses a combination of laser-beam& electro photographic techniques.

Correct Answer: Correct answer is: (A) Laser printers.

Exam Relevance: GRE, GMAT, IT Certification Exams

Difficulty: Easy

Concept notes: Laser printers use a combination of laser-beam and electro-photographic techniques to print text and images.

Common Mistakes: Students may confuse laser printers with inkjet printers, which use a different technology involving ink droplets.

Explanations: Laser printers use a laser to create an electrostatic image on a drum, which is then transferred to paper with toner. This process is distinct from other printer types like dot-matrix, line printers, and daisy wheel printers, which use mechanical or ink-based methods.

Option Analysis:

Option A: Correct. Laser printers use a laser to create an electrostatic image on a drum, which is then transferred to paper with toner.
Option B: Incorrect. Dot-matrix printers use a matrix of pins to strike an ink ribbon against the paper.
Option C: Incorrect. Line printers print an entire line at once using a variety of technologies, but not laser-beam and electro-photographic techniques.
Option D: Incorrect. Daisy wheel printers use a wheel with characters on the ends of spokes to print text.

Mnemonic: Laser = Light and Electrostatic

907. Which shortcut key is used to change current period in Tally

Correct Answer: Correct answer is: (B) Alt+F2.

Exam Relevance: CA Final, CS Executive, CS Professional

Difficulty: Easy

Concept notes: In Tally, the Alt+F2 shortcut key is used to change the current period.

Common Mistakes: Students often confuse the shortcut keys for different functions in Tally, such as changing the period or opening a new voucher.

Explanations: The Alt+F2 key combination is specifically designed to change the current period in Tally. This is a standard shortcut in the Tally software, and it is important for users to remember this key combination for efficient navigation and data management.

Option Analysis:

Option A: F2 is not the correct key combination for changing the current period in Tally.
Option B: Alt+F2 is the correct key combination for changing the current period in Tally.
Option C: F3 is not the correct key combination for changing the current period in Tally.
Option D: Alt+F3 is not the correct key combination for changing the current period in Tally.

Mnemonic: Alt+F2: "Alt" for "Alter" the period.

908. When you press and release the secondary mouse button you are.....

Correct Answer: Correct answer is: (A) Right clicking.

Exam Relevance: Computer literacy exams, basic IT skills assessments

Difficulty: Very Easy

Concept notes: The secondary mouse button is typically the right button on a standard mouse.

Common Mistakes: Students may confuse the primary and secondary mouse buttons, thinking the left button is secondary.

Explanations: The secondary mouse button is generally the right button on a standard mouse. Pressing and releasing this button is referred to as right-clicking.

Option Analysis:

Option A: Correct. Right-clicking is the action performed by pressing and releasing the secondary mouse button.
Option B: Incorrect. Left-clicking refers to the action performed by the primary mouse button, which is typically the left button.
Option C: Incorrect. The action is specifically right-clicking, not left-clicking.
Option D: Incorrect. The action is specifically right-clicking, which is a valid mouse action.

Mnemonic: Right button, right click.

909. In Windows operating system to delete the selected item permanently without placing the item in the Recycle Bin

Correct Answer: Correct answer is: (A) Shortcut SHIFT+DELETE.

Exam Relevance: CCNA, CompTIA A+, Microsoft Certified: Windows Operating System

Difficulty: Very Easy

Concept notes: In Windows, the SHIFT+DELETE shortcut permanently deletes a selected item without sending it to the Recycle Bin.

Common Mistakes: Students often mistakenly believe that pressing DELETE alone will permanently delete the item, but it only moves the item to the Recycle Bin.

Explanations: The correct answer is that pressing SHIFT+DELETE will permanently delete the selected item without placing it in the Recycle Bin. This is a standard Windows shortcut for bypassing the Recycle Bin and directly deleting files.

Option Analysis:

Option A: Correct. The SHIFT+DELETE shortcut bypasses the Recycle Bin and permanently deletes the selected item.
Option B: Incorrect. The CTRL key while dragging an item is used for copying files, not for deleting them.
Option C: Incorrect. The CTRL+SHIFT key combination while dragging an item is used for moving files, not for deleting them.
Option D: Incorrect. The correct answer is provided in Option A.

910. Computer Aided Drawing - Computer Aided Manufacturing. The instructions stored in a computer that will be translated to very precise operating instructions to a robot, such as for assembling cars or laser-cutting signage.

Correct Answer: Correct answer is: (A) CAD-CAM.

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: CAD-CAM stands for Computer Aided Design - Computer Aided Manufacturing. It involves using software to design and manufacture products with high precision.

Common Mistakes: Students may confuse CAD-CAM with other computer-related acronyms like CD-ROM, which stands for Compact Disc Read-Only Memory.

Explanations: CAD-CAM is the correct answer because it refers to the process of using computer software to design and manufacture products with precise instructions for robots. This technology is commonly used in industries such as automotive manufacturing and sign-making.

Option Analysis:

Option A: Correct. CAD-CAM is the correct term for the process described.
Option B: Incorrect. CD-ROM stands for Compact Disc Read-Only Memory, which is unrelated to manufacturing processes.
Option C: Incorrect. USENET is a worldwide distributed discussion system, not related to manufacturing.
Option D: Incorrect. The correct answer is provided in the options.

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3 thoughts on “Information and Communication Technology MCQ - Set 91”

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 91”

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