Computer — All MCQs
4795 questions available
Q3641.Dividing a number by zero is an example of _____ error.
Correct Answer: C
Dividing by zero compiles successfully but causes a runtime mathematical exception, representing a logical error in code design.
Q3642.In _____ topology, data is communicated in one direction from node to node.
Correct Answer: B
In a Ring network topology, data packets travel sequentially in a single direction from one node to the next in a closed loop.
Q3643.A _____ is the example of full-duplex transmission mode.
Correct Answer: A
A telephone line is a full-duplex communication medium, allowing both users to transmit and receive audio signals simultaneously.
Q3644.Which connects two or more computers in a same network?
Correct Answer: A
A network switch connects multiple computers within the same local network (LAN) and routes frames directly to specific destination MAC addresses.
Q3645.Which supports rate from 100 Kbps to 4 Mbps?
Correct Answer: A
Infrared (IR) wireless communication supports short-range, line-of-sight data transfer rates ranging between 100 Kbps and 4 Mbps.
Q3646.The data transmission speed in _____ cable is from 10 Mbps to 200 Mbps.
Correct Answer: C
Coaxial cabling typically supports data transmission speeds ranging from 10 Mbps up to 200 Mbps over medium distances.
Q3647.In ______ transmission, a parity bit sometimes included at the end of each byte for error checking.
Correct Answer: B
Asynchronous serial transmission packages data into individual bytes with start, stop, and sometimes a parity bit to detect transmission errors.
Q3648.The first Graphical User Interface (GUI) computer was developed by which company?
Correct Answer: B
Apple developed the Lisa (1983) and Macintosh (1984), which introduced the first highly successful commercial Graphical User Interface (GUI) computers.
Q3649.The software that is available free of charge is called _____?
Correct Answer: A
Freeware is copyrighted software made available for public use at absolutely no financial cost, unlike trial-based shareware.
Q3650.The types of expansion slots are _____?
Correct Answer: B
Standard motherboard expansion slots include AGP (for graphics), PCI (for peripherals), and ISA (legacy architecture).
Q3651.The ____ directs and coordinates most of the operations in the computer.
Correct Answer: C
The Control Unit (CU) inside the CPU interprets program instructions and directs coordination of data flow across computer hardware components.
Q3652.Based on speed, size and performance digital computers are classified into _____ types.
Correct Answer: B
Digital computer systems are categorized into exactly 4 size classes: Microcomputers, Minicomputers, Mainframes, and Supercomputers.
Q3653.The third generation computers could carry out instructions in ______ of a second.
Correct Answer: B
Third generation computers (1960s–70s) used integrated circuits (ICs), enabling them to execute instructions in millionths of a second (microseconds).
Q3654.Internet address which identifies a website is called _____?
Correct Answer: C
A URL (Uniform Resource Locator) is the unique web address used to identify and locate a specific website or file on the Internet.
Q3655.In C language, compound operator contains _____ operator and assignment operator.
Correct Answer: A
In C, compound assignment operators (e.g., +=, -=, *=) combine an arithmetic operator with the assignment operator (=) to shorten code.
Q3656.Karnaugh map (K-map) method was introduced in _____?
Correct Answer: A
The Karnaugh map (K-map) was invented in 1953 by Maurice Karnaugh at Bell Labs to assist in simplifying Boolean algebra expressions visually.
Q3657.Which is capable to accept a string with white space characters?
Correct Answer: B
The gets() function reads characters from standard input until a newline character is encountered, allowing spaces within the string.
Q3658.Which tag is used to create a hyperlink in a webpage?
Correct Answer: B
The HTML anchor tag <a> is used to define a hyperlink, using the 'href' attribute to point to the destination URL.
Q3659.In HTML, the _____ tags are used for creating an unordered list.
Correct Answer: C
The <ul> tag defines an unordered (bulleted) list in HTML, while the <ol> tag is used for ordered (numbered) lists.
Q3660.The gate whose output is 0 when all the inputs are 1 is called _____ gate.
Correct Answer: C
A NAND gate outputs 0 only if all of its inputs are 1; otherwise, it outputs 1 (behaving as the logical negation of an AND gate).