Information and Communication Technology MCQ

951. A data warehouse.....

Correct Answer: Correct answer is: (A) Is organized around important subject areas.

Exam Relevance: MBA, Data Science, Business Analytics

Difficulty: Easy

Concept notes: A data warehouse is designed to store and manage large amounts of data for analysis and reporting. It is structured around key subject areas, such as sales, marketing, or finance, to facilitate efficient querying and analysis.

Common Mistakes: Students may mistakenly believe that a data warehouse only contains current data, but it typically includes historical data for trend analysis.

Explanations: A data warehouse is organized around important subject areas to provide a structured and integrated view of data from various sources. This organization allows for efficient data retrieval and analysis, supporting business intelligence and decision-making processes. The other options are incorrect because a data warehouse does not only contain current data, and not all of the options are true.

Option Analysis:

Option A: Correct. A data warehouse is organized around important subject areas to facilitate efficient data retrieval and analysis.
Option B: Incorrect. A data warehouse typically contains historical data, not just current data.
Option C: Incorrect. Not all of the options are true, as a data warehouse does not only contain current data.
Option D: Incorrect. This option is not correct because option A is true.

952. Consider the following Statements: You can overclock a computer to make the processor run faster which increases the processing power. You don't need permission to use Public Domain The system clock keeps everything synchronised inside the computer Which of the following statement(s) is/are true?

Correct Answer: Correct answer is: (C) Only 1, 2, 3.

Exam Relevance: AP Computer Science, SAT Subject Tests, A-Levels

Difficulty: Moderate

Concept notes: The statements about overclocking, public domain, and the system clock are all true.

Common Mistakes: Students may incorrectly believe that overclocking can damage the processor or that public domain requires permission.

Explanations: Overclocking a computer can increase the processor's speed, thereby enhancing processing power. Public domain materials are freely available for use without requiring permission. The system clock synchronizes all internal operations within a computer, ensuring that processes occur in a coordinated manner.

Option Analysis:

Option A: Incorrect because it omits the third statement about the system clock.
Option B: Incorrect because it omits the first statement about overclocking.
Option C: Correct because all three statements are true.
Option D: Incorrect because it omits the second statement about public domain.

953. Why is iteration important?

Correct Answer: Correct answer is: (B) It allows code to be simplified by removing duplicated steps.

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

Difficulty: Moderate

Concept notes: Iteration is a programming concept that allows a set of instructions to be repeated multiple times. This repetition can help in simplifying code by removing duplicated steps, making the code more efficient and easier to maintain.

Common Mistakes: Students often confuse iteration with other control structures like conditional statements, which do not inherently simplify code by removing duplicated steps.

Explanations: Iteration allows a set of instructions to be repeated without the need to write the same code multiple times. This simplification reduces redundancy and makes the code more manageable and easier to update. By removing duplicated steps, iteration contributes to cleaner and more efficient code.

Option Analysis:

Option A: This option is incorrect because iteration does not determine the order of instructions; it repeats a set of instructions.
Option B: This option is correct because iteration simplifies code by removing duplicated steps, making the code more efficient.
Option C: This option is incorrect because iteration does not create multiple paths through a program; it repeats a single path.
Option D: This option is incorrect because while iteration can help ensure code works correctly by reducing errors from duplicated code, it does not inherently ensure correctness.

954. To move to the beginning of a line of text, press the..... key.

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

Exam Relevance: GED, SAT, ACT

Difficulty: Very Easy

Concept notes: The Home key is used to move the cursor to the beginning of the current line in text editors and word processors.

Common Mistakes: Students may confuse the Home key with the End key, which moves the cursor to the end of the line.

Explanations: The Home key is specifically designed to move the cursor to the beginning of the current line. This function is consistent across various text editors and word processors, making it a standard feature for navigating text.

Option Analysis:

Option A: The Tab key moves the cursor to the next tab stop, not the beginning of the line.
Option B: The Page Up key scrolls the document up one page, not to the beginning of the line.
Option C: The Enter key starts a new line, not moving the cursor to the beginning of the current line.
Option D: The Home key moves the cursor to the beginning of the current line, which is the correct function.

Mnemonic: Home key, home sweet home.

955. Start /restart the computer is called

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

Exam Relevance: IT Essentials, CompTIA A+, AP Computer Science Principles

Difficulty: Easy

Concept notes: The process of starting or restarting a computer is called booting.

Common Mistakes: Students may confuse "boot" with "shutdown" or "restart," which are different processes.

Explanations: Booting is the process of starting a computer system from a powered-off state or restarting it. This involves loading the operating system and initializing hardware components. The term "boot" is derived from the phrase "to pull oneself up by one's bootstraps," symbolizing the computer's ability to start itself from a minimal state.

Option Analysis:

Option A: Exit refers to closing a program or shutting down the computer, not starting it.
Option B: Run is used to execute a program or command, not to start the computer.
Option C: Option is a choice or selection, not a process related to starting a computer.
Option D: Boot is the correct term for starting or restarting a computer.

956. When we create a chart on a separate sheet in the same worksheet it is called a.....

Correct Answer: Correct answer is: (B) Chart Sheet.

Exam Relevance: Microsoft Excel Certification, High School Computer Science Exams

Difficulty: Easy

Concept notes: A Chart Sheet is a separate sheet within a workbook that contains only a chart.

Common Mistakes: Students may confuse a Chart Sheet with an Embedded Chart, which is a chart placed within a worksheet.

Explanations: A Chart Sheet is a dedicated sheet in a workbook that contains only a chart. This allows for a larger view of the chart and easier manipulation without the clutter of other data. The correct answer is B) Chart Sheet, as it accurately describes a chart placed on a separate sheet within the same workbook.

Option Analysis:

Option A: An Embedded Chart is a chart placed within a worksheet, not on a separate sheet.
Option B: A Chart Sheet is a separate sheet within a workbook that contains only a chart.
Option C: This option is incorrect because only one of the options is correct.
Option D: This option is incorrect because one of the options is indeed correct.

957. Which of the following means to point you to a malicious and illegitimate website by redirecting the legitimate URL?

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

Exam Relevance: CISSP, CompTIA Security+, CEH

Difficulty: Moderate

Concept notes: Pharming is a cyber attack that redirects users to a malicious website by altering DNS settings or host files, making it appear as if the user is visiting a legitimate site.

Common Mistakes: Students may confuse pharming with phishing, which involves tricking users into providing sensitive information through deceptive emails or messages.

Explanations: Pharming involves altering the DNS settings or host files to redirect users to a malicious site. This means that when a user types in a legitimate URL, they are unknowingly directed to a fraudulent site. This is different from phishing, which relies on social engineering to trick users into clicking on malicious links.

Option Analysis:

Option A: A computer worm is a type of malware that replicates itself to spread to other computers, but it does not specifically redirect URLs.
Option B: Malicious spyware is software that secretly monitors a user's activities, but it does not redirect URLs.
Option C: Pharming is the correct answer as it involves redirecting legitimate URLs to malicious sites.
Option D: This option is incorrect as the correct answer is provided by option C.

Mnemonic: DNS hijack, pharming attack.

958. ..... is a type of synchronous interrupt typically caused by an exceptional condition (Ex:-division by zero or invalid memory access) in a user process.

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

Exam Relevance: Operating Systems, Computer Architecture, Systems Programming

Difficulty: Moderate

Concept notes: A trap is a type of synchronous interrupt that occurs due to exceptional conditions in a user process, such as division by zero or invalid memory access.

Common Mistakes: Students may confuse traps with other types of interrupts, such as hardware interrupts, which are typically asynchronous.

Explanations: Traps are synchronous interrupts that occur due to exceptional conditions in a user process. These conditions include division by zero, invalid memory access, and other exceptional events that require immediate attention. Traps are different from hardware interrupts, which are typically asynchronous and occur due to external events. The correct answer is trap because it accurately describes the type of interrupt caused by exceptional conditions in a user process.

Option Analysis:

Option A: Call is not a type of interrupt but rather a procedure for invoking a function or subroutine.
Option B: Trap is the correct answer as it describes a synchronous interrupt caused by exceptional conditions in a user process.
Option C: None of the above is incorrect because trap is a valid and specific type of interrupt.
Option D: All the above is incorrect because not all options are correct.

959. Slide Rules was invented in

Correct Answer: Correct answer is: (C) 1620.

Exam Relevance: SAT, ACT, AP World History

Difficulty: Easy

Concept notes: The slide rule, an analog computing device, was invented in 1620 by William Oughtred.

Common Mistakes: Students may confuse the invention date with the development of logarithms by John Napier in 1614.

Explanations: William Oughtred invented the slide rule in 1620, which was a significant advancement in computational tools. The slide rule was based on logarithmic scales, which were developed by John Napier in 1614. However, the actual invention of the slide rule as a practical device occurred in 1620.

Option Analysis:

Option A: 1614 is the year John Napier developed logarithms, not the invention of the slide rule.
Option B: 1617 is not a significant year in the history of the slide rule's invention.
Option C: 1620 is the correct year when William Oughtred invented the slide rule.
Option D: None of the above is incorrect as 1620 is the correct year.

Mnemonic: Slide Rule, 1620, Oughtred

960. Which of the following is an non-profit corporation that is responsible for allocating IP addresses and managing the domain name system?

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

Exam Relevance: CISSP, CompTIA Network+, CCNA

Difficulty: Easy

Concept notes: ICANN (Internet Corporation for Assigned Names and Numbers) is a non-profit organization responsible for managing the domain name system and allocating IP addresses.

Common Mistakes: Students may confuse ICANN with other acronyms like ICF or ICQ, which are unrelated to IP address allocation and domain name management.

Explanations: ICANN is the correct answer because it is the non-profit organization specifically tasked with managing the domain name system and allocating IP addresses. ICF and ICQ are not involved in these functions.

Option Analysis:

Option A: ICF is not related to IP address allocation or domain name management.
Option B: ICANN is the correct organization responsible for IP address allocation and domain name management.
Option C: ICQ is an instant messaging service and not involved in IP address allocation or domain name management.
Option D: This option is incorrect as only ICANN is responsible for the specified functions.

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3 thoughts on “Information and Communication Technology MCQ - Set 96”

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 96”

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