Computer — All MCQs
4795 questions available
Q4221.In Microsoft PowerPoint, which of the following represents a valid built-in Action Button?
Correct Answer: D
All of these are standard Action Buttons (located under Insert > Shapes > Action Buttons) that come pre-programmed with default navigation/interactive behaviors (Home moves to the first slide, End to the last, and Help opens support).
Q4222.The smallest meaningful unit of data in a relational database table is called a _____?
Correct Answer: A
A field (column) is the smallest meaningful unit of data in a database, designed to store a specific property or attribute of a record (e.g., First Name or Date of Birth).
Q4223.Which type of computer memory contains the fundamental startup instructions (BIOS) to boot a computer?
Correct Answer: C
ROM (Read-Only Memory) is non-volatile memory that holds the BIOS firmware. When the computer is powered on, the CPU executes this code to initialize hardware and load the operating system.
Q4224.In Gmail, which of the following file types can be attached to an email message?
Correct Answer: D
Gmail supports attaching a wide variety of digital files—including text documents, spreadsheet files, high-fidelity audio, and videos—up to a size limit of 25 MB.
Q4225.What happens to an active program window when a user selects the 'Minimize' command?
Correct Answer: C
Minimizing a program does not exit or close it. Instead, it hides the active window from the desktop and keeps it running in the background, represented as an icon on the taskbar.
Q4226.Which of the following is NOT an online monetary transaction method?
Correct Answer: D
Debit, credit, and e-cheques are online transaction mechanisms. Online delivery represents the logistics fulfillment process (shipping/sending goods) after a transaction is completed.
Q4227.Microsoft Word's web authoring tools allow users to incorporate which elements onto web pages?
Correct Answer: D
When exporting documents as web pages, Word's web authoring tools enable you to add multimedia elements such as bullets, interactive hyperlinks, and audio/sounds.
Q4228.Which of the following is NOT classified as system software?
Correct Answer: B
Operating systems, device drivers, and utilities are system software designed to manage hardware. Entertainment (like media players or games) is application software.
Q4229.Which storage media can be utilized to backup critical data?
Correct Answer: D
Data backups can be safely performed on various storage technologies, including magnetic media (floppy disks, HDDs), optical media (CDs, DVDs), or solid-state storage.
Q4230.Which keyboard shortcut is used to move the cursor one entire word to the right?
Correct Answer: A
Ctrl + Right Arrow moves the insertion point (cursor) one full word to the right. Conversely, Ctrl + Left Arrow moves it one word to the left.
Q4231.How many bits are used in the BCD (Binary Coded Decimal) representation of a single decimal digit?
Correct Answer: C
Binary Coded Decimal (BCD) uses a 4-bit binary sequence to encode each of the ten decimal digits (0 to 9) independently (e.g., 9 is encoded as 1001).
Q4232.In computer graphics, what does 'Animation' mean?
Correct Answer: A
Animation is the rapid, accelerated display of a sequence of static, slightly varying images to create the cognitive illusion of continuous motion.
Q4233.Which branch of Artificial Intelligence (AI) focuses on enabling computers to understand and process human language?
Correct Answer: B
Natural Language Processing (NLP) is the subfield of AI dedicated to developing algorithms that can read, parse, interpret, and generate human natural languages.
Q4234.Which computer component connects physical peripherals like printers and keyboards to the system?
Correct Answer: C
Input/Output (I/O) ports (such as USB, parallel, serial, or PS/2 ports) serve as physical interfaces on the computer chassis to connect external peripherals.
Q4235.A number system that uses exactly eight unique symbols to represent any quantity is known as?
Correct Answer: C
The Octal number system is a base-8 system that represents numerical values using eight distinct digits: 0, 1, 2, 3, 4, 5, 6, and 7.
Q4236.Which type of chart is best suited for a project tracking changes over time?
Correct Answer: C
Line charts are designed to connect data points in a sequence, making them the ideal visualization choice for tracking small or large data changes over continuous periods of time.
Q4237.What does the abbreviation DPI stand for in imaging and printing?
Correct Answer: C
DPI stands for Dots Per Inch. It measures the physical resolution or density of ink droplets a printer or image setter can produce within one linear inch.
Q4238.In Microsoft Office, formatting text as 'x⁵' is an example of what?
Correct Answer: A
Formatting characters to appear slightly above the baseline (such as the '5' in 'x⁵') is called Superscript. Setting them below the baseline is Subscript.
Q4239.What does the 'Collate' option mean in Microsoft Office print settings?
Correct Answer: B
Collating means printing multiple copies of a multi-page document in sequential order (1, 2, 3; 1, 2, 3) rather than printing all copies of page 1 first, then page 2, etc.
Q4240.What is the comparison symbol for the 'not equal to' operator in Microsoft Excel?
Correct Answer: C
Excel uses the logical comparison operator <> to represent 'not equal to'. This operator is used in formulas and logical tests.