Information and Communication Technology MCQ

111. What is an example of a reconnaissance attack tool that will cycle through all well-known ports to provide a complete list of all services that are running on the hosts?

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

Exam Relevance: CISSP, CEH, CompTIA Security+

Difficulty: Moderate

Concept notes: NMAP is a network exploration tool and security scanner used to discover hosts and services on a computer network by sending packets and analyzing the responses.

Common Mistakes: Students may confuse NMAP with other network tools like Netuse or Ipconfig, which do not perform port scanning.

Explanations: NMAP is specifically designed to cycle through all well-known ports to provide a complete list of all services running on the hosts. It sends packets to each port and analyzes the responses to determine which services are active. This makes NMAP the correct choice for reconnaissance attacks that require a comprehensive list of open ports and services.

Option Analysis:

Option A: Netuse is a command-line utility used to map network drives and does not perform port scanning.
Option B: Ipconfig is a command-line utility used to display and configure network interface settings and does not perform port scanning.
Option C: NMAP is a network exploration tool and security scanner that can cycle through all well-known ports to provide a complete list of all services running on the hosts.
Option D: Show run is a command used in network devices to display the current running configuration and does not perform port scanning.

Mnemonic: NMAP: Network Mapping

112. Which of the following is NOT a type of transmission medium?

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

Exam Relevance: IT Essentials, CompTIA A+, Network+

Difficulty: Easy

Concept notes: Transmission media are physical pathways that carry data from one device to another. Examples include coaxial cables, twisted pair cables, and microwave signals. A modem, however, is a device that modulates and demodulates signals for transmission over a medium, but it is not a medium itself.

Common Mistakes: Students may confuse a modem with a transmission medium because it is involved in the transmission process.

Explanations: Transmission media are the physical pathways used to transmit data, such as coaxial cables, twisted pair cables, and microwave signals. A modem, on the other hand, is a device that converts digital signals into analog signals for transmission over a medium and vice versa. Therefore, a modem is not a type of transmission medium.

Option Analysis:

Option A: Coaxial cables are a type of transmission medium used for transmitting data over long distances.
Option B: Twisted pair cables are a type of transmission medium commonly used in local area networks (LANs).
Option C: A modem is a device that converts digital signals into analog signals and vice versa, but it is not a transmission medium.
Option D: Microwave signals are a type of transmission medium used for wireless communication over long distances.

Mnemonic: Cable, Pair, Wave, Not Device (CPWN)

113. Which of the following formatting features is unique to numbers in spreadsheet?

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

Exam Relevance: Microsoft Excel Certification, Google Sheets Certification

Difficulty: Easy

Concept notes: Custom formatting is a feature unique to numbers in spreadsheets, allowing users to format numbers in specific ways that are not available for text.

Common Mistakes: Students may confuse custom formatting with other text formatting options like bold or italics, which are available for both text and numbers.

Explanations: Custom formatting is unique to numbers in spreadsheets because it allows users to format numbers in specific ways, such as currency, percentage, or date formats. These options are not available for text. Bold, italics, and indent are formatting options that can be applied to both text and numbers, making them not unique to numbers.

Option Analysis:

Option A: Bold is a formatting option that can be applied to both text and numbers, not unique to numbers.
Option B: Custom formatting is unique to numbers in spreadsheets, allowing specific number formats like currency or percentage.
Option C: Italics is a formatting option that can be applied to both text and numbers, not unique to numbers.
Option D: Indent is a formatting option that can be applied to both text and numbers, not unique to numbers.

114. Which term refers to a tube or channel through which network cable can be run to protect and organize it?

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

Exam Relevance: CompTIA Network+, CCNA, CISSP

Difficulty: Easy

Concept notes: A conduit is a tube or channel used to protect and organize network cables.

Common Mistakes: Students may confuse conduit with plenum, which is a space used for air circulation in buildings.

Explanations: Conduit is the correct term for a tube or channel through which network cables can be run to protect and organize them. This term is commonly used in networking and electrical installations to describe the protective casing for cables.

Option Analysis:

Option A: Plenum refers to a space used for air circulation in buildings, not a tube for cables.
Option B: Console typically refers to a control panel or interface, not a tube for cables.
Option C: Conduit is the correct term for a tube or channel used to protect and organize network cables.
Option D: Duckwork is not a standard term in networking or electrical installations.

Mnemonic: Cable Conduit: C for Conduit, C for Cable.

115. .....are used for plotting graphs and design on papers?

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

Exam Relevance: Computer Science, Engineering, Information Technology

Difficulty: Moderate

Concept notes: Plotters are devices used for creating precise drawings and graphs on paper.

Common Mistakes: Students may confuse plotters with other input devices like light pens or joysticks, which are not designed for plotting.

Explanations: Plotters are specifically designed to create precise and accurate drawings and graphs on paper. They use a pen or other marking device to draw lines and shapes directly onto the paper, making them ideal for technical drawings, architectural plans, and other detailed designs. Other options like trackballs, joysticks, and light pens are input devices and do not have the capability to plot or draw on paper.

Option Analysis:

Option A: Trackballs are input devices used for moving the cursor on a screen, not for plotting on paper.
Option B: Joysticks are input devices used for controlling movement in games or simulations, not for plotting on paper.
Option C: Light pens are input devices used for pointing and selecting on a screen, not for plotting on paper.
Option D: Plotters are output devices specifically designed for creating precise drawings and graphs on paper.

Mnemonic: PLOT - Plotters Lay Out Technical drawings

116. ..... is most often done after fixing a problem, adding a new program or making configuration change

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

Exam Relevance: IT Essentials, CompTIA A+, High School Computer Science Exams

Difficulty: Easy

Concept notes: Restarting a computer is a common troubleshooting step after making changes to ensure all updates and configurations are properly applied.

Common Mistakes: Students may confuse "shut down" with "restart," thinking that turning off the computer is sufficient to apply changes.

Explanations: Restarting a computer ensures that all changes, such as software installations or configuration updates, are fully applied and that the system is running with the latest settings. This process reloads the operating system and initializes all services, which can resolve issues that were not immediately apparent.

Option Analysis:

Option A: Shutting down the computer does not ensure that all changes are applied and can leave the system in an incomplete state.
Option B: Restarting the computer is the correct action to ensure all changes are applied and the system is running with the latest settings.
Option C: Putting the computer to sleep does not apply changes and only suspends the current state.
Option D: Hibernating the computer also does not apply changes and only saves the current state to disk.

Mnemonic: Restart to Reset, Reapply, and Reinitialize.

117. What symbols make up a computer's native Machine Language?

Correct Answer: Correct answer is: (B) 0 and 1.

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

Difficulty: Easy

Concept notes: Machine Language is the lowest-level programming language that a computer can understand directly. It consists of binary digits, which are represented by 0s and 1s.

Common Mistakes: Students may confuse Machine Language with higher-level programming languages that use more complex symbols or characters.

Explanations: Machine Language is composed of binary digits, which are the fundamental units of data in computing. These binary digits, or bits, are represented by the symbols 0 and 1. This binary system is the native language of computers, as it directly corresponds to the on and off states of the computer's hardware.

Option Analysis:

Option A: The symbols + and - are not used in Machine Language. They are not part of the binary system.
Option B: The symbols 0 and 1 are the correct answer because they represent the binary digits used in Machine Language.
Option C: The symbols 0 through 9 are used in decimal systems, not in the binary system used by Machine Language.
Option D: The symbols 'a' through 'z' are used in character encoding systems like ASCII, not in Machine Language.

118. Which register stores the result of ALU operations?

Correct Answer: Correct answer is: (D) Accumulator Register.

Exam Relevance: Computer Architecture, Digital Logic Design, Microprocessor Exams

Difficulty: Easy

Concept notes: The accumulator register is a specialized register used in computer architecture to store the result of arithmetic and logical operations performed by the ALU (Arithmetic Logic Unit).

Common Mistakes: Students often confuse the accumulator register with other registers like the data register or instruction register, which have different functions.

Explanations: The accumulator register is specifically designed to hold the result of ALU operations. It is a fundamental component in the CPU that accumulates the results of computations. Other registers like the data register, instruction register, and data address register serve different purposes and do not store the results of ALU operations.

Option Analysis:

Option A: The data register is used to hold data temporarily during data transfer operations, not for storing ALU results.
Option B: The instruction register holds the current instruction being executed, not the result of ALU operations.
Option C: The data address register holds memory addresses for data access, not the results of ALU operations.
Option D: The accumulator register is the correct choice as it stores the result of ALU operations.

Mnemonic: ACC for Accumulator, where ACC stands for "Arithmetic Computation Container."

119. Desktop publisher

Correct Answer: Correct answer is: (C) Software that allows text and graphics to be imported from other applications and then arranged and laid out for the production of a printed document.

Exam Relevance: GED, SAT, ACT

Difficulty: Moderate

Concept notes: A desktop publisher is a type of software used for creating and designing printed documents.

Common Mistakes: Students may confuse desktop publishing software with general graphic design software or database management systems.

Explanations: Desktop publishing software is specifically designed to allow users to import text and graphics from other applications and arrange them in a layout suitable for printing. This software is used to create professional-looking documents such as brochures, newsletters, and books. It is distinct from general graphic design software, which focuses more on creating images and graphics, and from database management systems, which are used to store and manipulate data.

Option Analysis:

Option A: This describes a database, not a desktop publisher.
Option B: This is too vague and does not describe the specific function of a desktop publisher.
Option C: This accurately describes the function of a desktop publisher.
Option D: This describes a network, not a desktop publisher.

120. The intersection areas of rows and columns in spreadsheet are called

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

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Very Easy

Concept notes: In a spreadsheet, the intersection of rows and columns is called a cell.

Common Mistakes: Students might confuse cells with other spreadsheet elements like rows or columns.

Explanations: A cell is the basic unit of a spreadsheet where data is entered and manipulated. It is defined by the intersection of a row and a column, allowing for precise data organization and management.

Option Analysis:

Option A: Box is not the correct term for the intersection of rows and columns in a spreadsheet.
Option B: Cells are the correct term for the intersection of rows and columns in a spreadsheet.
Option C: Line is not the correct term for the intersection of rows and columns in a spreadsheet.
Option D: None of the above is incorrect because cells are the correct term.

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3 thoughts on “Information and Communication Technology MCQ - Set 12”

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 12”

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