Information and Communication Technology MCQ

991. Which of the following is a major problem with priority scheduling?

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

Exam Relevance: Operating Systems, Computer Architecture, Systems Programming

Difficulty: Moderate

Concept notes: Priority scheduling can lead to starvation, where low-priority processes may never get executed because higher-priority processes are always available.

Common Mistakes: Students may confuse starvation with other issues like low priority or interrupts, which are not specific problems of priority scheduling.

Explanations: In priority scheduling, processes are executed based on their priority. If high-priority processes are continuously available, low-priority processes may never get a chance to execute, leading to starvation. This is a significant issue in priority scheduling as it can result in indefinite postponement of low-priority tasks.

Option Analysis:

Option A: Starvation is a valid issue in priority scheduling where low-priority processes may never get executed.
Option B: Low priority is a characteristic of processes, not a problem with the scheduling algorithm itself.
Option C: Interrupts are a hardware feature and not directly related to the scheduling algorithm's problems.
Option D: This option is incorrect as starvation is a real problem with priority scheduling.

992. Columns are called.....

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

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

Difficulty: Easy

Concept notes: In database terminology, columns are referred to as fields.

Common Mistakes: Students may confuse columns with rows, which are different structures in a database table.

Explanations: In a database table, each column represents a specific attribute or field. Each row, on the other hand, represents a record or instance of data. Therefore, columns are called fields.

Option Analysis:

Option A: Rows are not the same as columns; rows represent records.
Option B: Fields are the correct term for columns in a database table.
Option C: A table is the entire structure containing rows and columns, not just the columns.
Option D: A form is a user interface for inputting or displaying data, not a column in a table.

993. Which of the following language is considered to be extensible because of its unlimited and self-defining markup symbols?

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

Exam Relevance: Computer Science, Web Development, Information Technology

Difficulty: Moderate

Concept notes: XML (Extensible Markup Language) is designed to be extensible, allowing users to define their own tags and attributes to create custom markup languages.

Common Mistakes: Students may confuse XML with XHTML, which is a stricter and more XML-compliant version of HTML but does not have the same extensibility.

Explanations: XML is extensible because it allows users to define their own markup symbols and the structure of documents. This self-defining nature enables XML to be used in a wide variety of applications, from data storage to web services. XHTML, on the other hand, is a stricter version of HTML that adheres to XML syntax rules but does not offer the same level of extensibility as XML.

Option Analysis:

Option A: XHTML is not extensible in the same way as XML because it is a specific markup language with predefined tags and structure.
Option B: XML is extensible because it allows users to define their own markup symbols and structure, making it suitable for a wide range of applications.
Option C: Not all of these options are extensible; only XML is.
Option D: This is incorrect because XML is indeed extensible.

994. A result of a computer virus can not lead to.....

Correct Answer: Correct answer is: (B) Mother Board Crash.

Exam Relevance: CISSP, CompTIA Security+, CCNA Security

Difficulty: Moderate

Concept notes: A computer virus can cause various issues such as disk crashes, corruption of programs, and deletion of files. However, a virus cannot directly cause a motherboard crash.

Common Mistakes: Students may mistakenly believe that a virus can cause hardware damage, including a motherboard crash, due to the severe impact viruses can have on software and data.

Explanations: A computer virus is a type of malicious software that can affect the software and data on a computer. It can corrupt files, delete data, and cause system crashes. However, a virus cannot directly cause physical damage to hardware components like the motherboard. The motherboard is a hardware component and is not affected by software-based threats like viruses.

Option Analysis:

Option A: A virus can cause a disk crash by corrupting the file system or overwriting critical data on the disk.
Option B: A virus cannot cause a motherboard crash because the motherboard is a hardware component and is not affected by software-based threats.
Option C: A virus can corrupt programs by altering or deleting the program files.
Option D: A virus can delete files by overwriting or removing them from the file system.

995. Which command combines the contents of one file with another?

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

Exam Relevance: Computer Science, Information Technology, Programming Exams

Difficulty: Easy

Concept notes: The APPEND command is used to combine the contents of one file with another.

Common Mistakes: Students may confuse the APPEND command with the RENAME command, which changes the name of a file rather than combining its contents with another file.

Explanations: The APPEND command is designed to add the contents of one file to the end of another file. This is useful for combining data from multiple files into a single file. The other options do not serve this purpose: RENAME changes the name of a file, ADD is not a standard file manipulation command, and RESTORE is used to recover files from a backup.

Option Analysis:

Option A: RENAME changes the name of a file, not its contents.
Option B: APPEND combines the contents of one file with another.
Option C: ADD is not a standard file manipulation command.
Option D: RESTORE is used to recover files from a backup, not to combine files.

Mnemonic: A for Append, Add to Another.

996. Another name for the hard disc that stores information in a computer.

Correct Answer: Correct answer is: (A) Hard drive.

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Very Easy

Concept notes: A hard drive, also known as a hard disc, is a storage device used in computers to store and retrieve digital information.

Common Mistakes: Students may confuse the term "hard drive" with "hardware," which is a broader term that includes all physical components of a computer.

Explanations: The hard drive is the correct term for the storage device that stores information in a computer. It is synonymous with the term "hard disc." The other options are incorrect: "Hardware" refers to all physical components of a computer, "Palm" is unrelated to computer storage, and "None of the above" is not applicable since "Hard drive" is the correct term.

Option Analysis:

Option A: Correct. Hard drive is another name for the hard disc that stores information in a computer.
Option B: Incorrect. Hardware refers to all physical components of a computer, not specifically the storage device.
Option C: Incorrect. Palm is unrelated to computer storage.
Option D: Incorrect. "None of the above" is not applicable since "Hard drive" is the correct term.

997. Which of the following is used to preview the desktop?

Correct Answer: Correct answer is: (D) Windows Logo Key + Spacebar.

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

Difficulty: Easy

Concept notes: The Windows Logo Key + Spacebar is a keyboard shortcut used to preview the desktop by temporarily minimizing all open windows.

Common Mistakes: Students may confuse this shortcut with other Windows shortcuts, such as Windows Logo Key + D, which minimizes all windows to show the desktop, or Windows Logo Key + Tab, which opens the task view.

Explanations: The Windows Logo Key + Spacebar shortcut is specifically designed to preview the desktop by minimizing all open windows temporarily. This allows users to quickly see the desktop without closing or minimizing any applications permanently. This is different from other shortcuts like Windows Logo Key + D, which minimizes all windows to show the desktop, or Windows Logo Key + Tab, which opens the task view.

Option Analysis:

Option A: Windows Logo Key + Right Arrow is used to move a window to the right side of the screen, not to preview the desktop.
Option B: Windows Logo Key + Ctrl does not have a specific function related to previewing the desktop.
Option C: Windows Logo Key + Shift does not have a specific function related to previewing the desktop.
Option D: Windows Logo Key + Spacebar is the correct shortcut to preview the desktop by temporarily minimizing all open windows.

Mnemonic: Spacebar for a quick peek.

998. Which protocol is used for secure communication over internet?

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

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: HTTPS stands for Hypertext Transfer Protocol Secure. It is used for secure communication over the internet by encrypting data transmitted between a user's browser and a website.

Common Mistakes: Students may confuse HTTPS with HTTP, which does not provide encryption and is therefore not secure.

Explanations: HTTPS is the correct answer because it uses SSL/TLS protocols to encrypt data, ensuring secure communication over the internet. This encryption prevents eavesdropping and data tampering, making it suitable for secure transactions and sensitive information.

Option Analysis:

Option A: IP (Internet Protocol) is used for routing and addressing but does not provide security.
Option B: UDP (User Datagram Protocol) is a transport protocol that does not provide security or reliability guarantees.
Option C: HTTP (Hypertext Transfer Protocol) is used for transmitting data over the web but does not encrypt data, making it insecure.
Option D: HTTPS (Hypertext Transfer Protocol Secure) is the correct answer as it encrypts data for secure communication.

999. A record consists of a.....

Correct Answer: Correct answer is: (C) Set of one or more fields.

Exam Relevance: Database Management Systems, Computer Science Exams, Information Systems Exams

Difficulty: Easy

Concept notes: A record is a collection of related data elements, each of which is a field.

Common Mistakes: Students may confuse a record with a single character or a collection of related records.

Explanations: A record is defined as a set of one or more fields. Each field within a record contains a specific piece of data. This structure allows for the organization and management of related data in a database or file system.

Option Analysis:

Option A: A character is a single unit of data, not a record.
Option B: A collection of related records is a database or file, not a single record.
Option C: A set of one or more fields correctly defines a record.
Option D: Not all options are correct; only C is accurate.

1000. What is a complex system that takes on nearly complete responsibility for a task eliminating the need for people, verification, or decision making?

Correct Answer: Correct answer is: (A) Autonomous system.

Exam Relevance: Computer Science, Engineering, Information Technology

Difficulty: Moderate

Concept notes: An autonomous system is a complex system designed to operate independently, performing tasks without human intervention.

Common Mistakes: Students may confuse autonomous systems with other control systems like audit controls or cryptosystems, which do not eliminate the need for human verification or decision-making.

Explanations: An autonomous system is designed to take on nearly complete responsibility for a task, eliminating the need for human intervention, verification, or decision-making. This aligns with the description provided in the question. Audit controls and cryptosystems do not inherently eliminate the need for human involvement in tasks.

Option Analysis:

Option A: Correct. An autonomous system operates independently, performing tasks without human intervention.
Option B: Incorrect. Audit controls are mechanisms for verifying the integrity and accuracy of data, requiring human verification.
Option C: Incorrect. Cryptosystems are used for secure communication and do not eliminate the need for human decision-making.
Option D: Incorrect. This option is not applicable as the correct answer is provided.

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3 thoughts on “Information and Communication Technology MCQ - Set 100”

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 100”

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