Information and Communication Technology MCQ

641. Which of the following is used to format number in date format?

Correct Answer: Correct answer is: (C) Ctrl + Shift + 3.

Exam Relevance: Microsoft Excel Certification, CPA Exam, CFA Exam

Difficulty: Easy

Concept notes: The correct answer is related to keyboard shortcuts used in spreadsheet software like Microsoft Excel to format numbers as dates.

Common Mistakes: Students may confuse the keyboard shortcuts for different formatting options, such as currency or percentage, which have similar key combinations.

Explanations: In spreadsheet software, the shortcut Ctrl + Shift + 3 is used to format selected cells as dates. This shortcut applies a date format to the selected cells, which is useful for displaying and manipulating date data in a consistent format.

Option Analysis:

Option A: Ctrl + Shift + 5 is not the correct shortcut for formatting numbers as dates. It is typically used for other formatting options.
Option B: Ctrl + Shift + 4 is not the correct shortcut for formatting numbers as dates. It is typically used for other formatting options.
Option C: Ctrl + Shift + 3 is the correct shortcut for formatting numbers as dates in spreadsheet software.
Option D: All the above is incorrect because only one of the options is the correct shortcut for formatting numbers as dates.

642. When was the first Windows operating system launched.....

Correct Answer: Correct answer is: (A) 1985.

Exam Relevance: Computer Science Exams, Information Technology Exams

Difficulty: Easy

Concept notes: The first version of the Windows operating system was released in 1985.

Common Mistakes: Students may confuse the release date with later versions of Windows, such as Windows 3.0 or Windows 95.

Explanations: Microsoft released the first version of the Windows operating system in 1985. This version was a graphical user interface (GUI) that ran on top of MS-DOS. It was not a standalone operating system but rather an extension to MS-DOS. The release date of 1985 is significant as it marks the beginning of the Windows operating system lineage.

Option Analysis:

Option A: Correct. The first version of Windows was released in 1985.
Option B: Incorrect. 1988 is not the correct year for the first Windows release.
Option C: Incorrect. 1989 is not the correct year for the first Windows release.
Option D: Incorrect. 1990 is not the correct year for the first Windows release.

Mnemonic: Windows 1985, the year it began.

643. In.....frequency spectrum is divided into smaller spectrum is divided into smaller spectra and is allocated to each user.

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

Exam Relevance: GATE, GRE, ECE exams

Difficulty: Easy

Concept notes: FDMA (Frequency Division Multiple Access) is a method used in telecommunications where the frequency spectrum is divided into smaller, non-overlapping frequency bands, and each user is allocated a specific band for communication.

Common Mistakes: Students may confuse FDMA with TDMA (Time Division Multiple Access), where the time slots are divided instead of the frequency spectrum.

Explanations: In FDMA, the frequency spectrum is divided into smaller, non-overlapping frequency bands. Each user is allocated a specific frequency band for communication. This ensures that users do not interfere with each other, as they are using different parts of the frequency spectrum.

Option Analysis:

Option A: Correct. FDMA divides the frequency spectrum into smaller bands and allocates each band to a user.
Option B: Incorrect. TDMA divides the time slots into smaller intervals and allocates each interval to a user.
Option C: Incorrect. CDMA uses codes to distinguish between users, rather than dividing the frequency spectrum.
Option D: Incorrect. SDMA (Space Division Multiple Access) uses spatial separation to allocate resources, not frequency division.

644. Is a computer a alive thing?

Correct Answer: Correct answer is: (C) No.

Exam Relevance: Biology exams, Science Olympiad, General Science tests

Difficulty: Easy

Concept notes: The question asks whether a computer is a living thing. Living things are defined by certain characteristics such as the ability to grow, reproduce, respond to stimuli, and maintain homeostasis.

Common Mistakes: Students might mistakenly think a computer is alive because it can process information and respond to commands, which are similar to some behaviors of living organisms.

Explanations: A computer is not a living thing because it does not possess the essential characteristics of life. It cannot grow, reproduce, respond to stimuli in a biological sense, or maintain homeostasis. A computer is a machine designed to perform tasks based on programmed instructions.

Option Analysis:

Option A: Incorrect because a computer does not meet the criteria for being alive.
Option B: Incorrect because a computer is definitively not alive; it is a machine.
Option C: Correct because a computer lacks the essential characteristics of living organisms.
Option D: Incorrect because the answer is definitively known and can be determined based on the definition of life.

645. A multiple-socket USB connector that allows several USB-compatible devices to be connected to a computer.

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

Exam Relevance: GRE, GMAT, IT Certification Exams

Difficulty: Easy

Concept notes: USB (Universal Serial Bus) is a standard for connecting devices to computers. A multiple-socket USB connector allows several USB-compatible devices to be connected to a computer simultaneously.

Common Mistakes: Students may confuse USB with other technologies like USENET, which is a distributed Internet-based discussion system, or CD-ROM, which is a type of optical disc used to store data.

Explanations: USB (Universal Serial Bus) is the correct answer because it is a standard interface for connecting multiple devices to a computer. A multiple-socket USB connector allows several USB-compatible devices to be connected to a computer at once, making it the appropriate choice for the given description.

Option Analysis:

Option A: USB is the correct answer as it is a standard interface for connecting multiple devices to a computer.
Option B: USENET is a distributed Internet-based discussion system and is not related to connecting devices to a computer.
Option C: CD-ROM is a type of optical disc used for storing data and is not a connector for multiple devices.
Option D: None of the above is incorrect because USB is the correct answer.

Mnemonic: USB: Universal Serial Bus, connects multiple devices.

646. The protocol used to send email.

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

Exam Relevance: CISSP, CompTIA Network+, CCNA

Difficulty: Easy

Concept notes: SMTP stands for Simple Mail Transfer Protocol, which is used for sending email messages between servers.

Common Mistakes: Students may confuse SMTP with POP3 or IMAP, which are used for receiving emails rather than sending them.

Explanations: SMTP is the protocol used to send email messages from a sender's email server to a recipient's email server. It is designed to ensure that email messages are delivered reliably and efficiently. POP3 and IMAP are protocols used for retrieving emails from a server to a client device, not for sending emails.

Option Analysis:

Option A: POP3 is used for retrieving emails from a server to a client device, not for sending emails.
Option B: IMAP is also used for retrieving emails from a server to a client device, not for sending emails.
Option C: FTP is used for transferring files between computers on a network, not for sending emails.
Option D: SMTP is the correct protocol used for sending email messages between servers.

Mnemonic: Send Mail Through SMTP

647. The methods used by COBOL to define that structure of a data item in terms of characters, digits, etc. is

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

Exam Relevance: COBOL Programming Exams, Undergraduate Programming Exams, Professional Programming Certifications

Difficulty: Moderate

Concept notes: In COBOL, the Picture clause is used to define the structure of a data item, specifying the number of characters, digits, and other formatting details.

Common Mistakes: Students may confuse the Picture clause with other COBOL clauses like Value or Redefines, which serve different purposes.

Explanations: The Picture clause in COBOL is used to define the structure of a data item. It specifies the number of characters, digits, and other formatting details. For example, a Picture clause like "999V99" defines a numeric data item with three digits before the decimal point and two digits after. This clause is essential for defining the format and structure of data items in COBOL programs.

Option Analysis:

Option A: Password is not a COBOL clause or concept used for defining data structure.
Option B: Pointer is not a COBOL clause or concept used for defining data structure.
Option C: Picture is the correct COBOL clause used to define the structure of a data item.
Option D: Overlay is a COBOL clause used to share storage between data items, not to define their structure.

Mnemonic: PICTURE = P for Picture, I for Item, C for Character, T for Type, U for Usage, R for Representation, E for Element.

648. When you quickly press and release the left mouse button twice you are

Correct Answer: Correct answer is: (C) Double clicking.

Exam Relevance: Computer Science Exams, IT Certification Exams

Difficulty: Easy

Concept notes: Double clicking refers to the action of pressing and releasing the left mouse button twice in quick succession.

Common Mistakes: Students may confuse double clicking with primary clicking, which is a single press and release of the left mouse button.

Explanations: Double clicking is a common mouse action used to open files, folders, or applications. It involves pressing and releasing the left mouse button twice in quick succession. This action is distinct from primary clicking, which is a single press and release of the left mouse button.

Option Analysis:

Option A: Primary clicking refers to a single press and release of the left mouse button, not double clicking.
Option B: Pointing refers to moving the mouse to position the cursor over an item, not double clicking.
Option C: Double clicking is the correct term for pressing and releasing the left mouse button twice in quick succession.
Option D: Secondary clicking refers to pressing and releasing the right mouse button, not double clicking.

Mnemonic: Double D for Double Click

649. At which stage do the developers decide the layout of the user interface?

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

Exam Relevance: Software Engineering, Human-Computer Interaction, User Experience Design

Difficulty: Moderate

Concept notes: The layout of the user interface is typically decided during the design phase of software development.

Common Mistakes: Students may confuse the design phase with the implementation phase, where the actual coding and building of the interface occurs.

Explanations: The design phase is where developers and designers focus on the visual and functional aspects of the user interface. This includes deciding on the layout, color schemes, and overall user experience. The analysis phase involves gathering requirements and understanding user needs, while the implementation phase involves coding the interface based on the design. The evaluation phase is for testing and refining the interface.

Option Analysis:

Option A: Analysis is the phase where requirements are gathered and understood, not where the layout is decided.
Option B: Design is the correct phase where the layout of the user interface is decided.
Option C: Implementation is the phase where the interface is built based on the design, not where the layout is decided.
Option D: Evaluation is the phase where the interface is tested and refined, not where the layout is decided.

Mnemonic: Design Decides Dazzle

650. We access the World Wide Web using:

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

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: Browsers are software applications that allow users to access and navigate the World Wide Web.

Common Mistakes: Students may confuse browsers with other internet tools like search engines or instant messaging applications.

Explanations: Browsers are specifically designed to retrieve and display web pages from the internet. They interpret HTML, CSS, and JavaScript to render web content. Other options like instant messaging applications, high bandwidth, and search engines are not used to access the World Wide Web directly.

Option Analysis:

Option A: Correct. Browsers are used to access the World Wide Web.
Option B: Incorrect. Instant messaging applications are used for communication, not for accessing the World Wide Web.
Option C: Incorrect. High bandwidth is a measure of internet speed, not a tool for accessing the World Wide Web.
Option D: Incorrect. Search engines help find information on the web but are not used to access the World Wide Web directly.

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3 thoughts on “Information and Communication Technology MCQ - Set 65”

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 65”

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