All Free Software Engineering MCQs with Answers
Every Software Engineering question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
1,731 questions · page 21 of 87
- A. Ctrl
- B. Del
- C. Enter
- D. Num lock
Explanation: The Ctrl key is a general keyboard control key and is not part of the numeric keypad.
Correct answer: Ctrl- A. Mainframe
- B. Super computer
- C. Embedded computer
- D. Notebook computer
Explanation: A digital watch contains a dedicated embedded computer designed to perform a specific function within the watch.
Correct answer: Embedded computer- A. The physical parts of a computer
- B. The printed parts of a computer
- C. The printed output
- D. The physical output device
Explanation: A hard copy is information produced in a physical, usually printed, form that can be handled or read without a computer.
Correct answer: The printed output- A. system board
- B. central control unit
- C. central processing unit
- D. memory
Explanation: The central processing unit performs arithmetic, logical, and control operations by means of its ALU and control unit.
Correct answer: central processing unit- A. Input
- B. Word Processing
- C. Processing
- D. Output
Explanation: A printer produces information on paper or another physical medium, so it is an output device.
Correct answer: Output- A. ideas
- B. suggestions
- C. information
- D. reports
Explanation: A computer processes raw data through calculations and logical operations to produce meaningful information.
Correct answer: information- A. Print
- B. Input
- C. Type
- D. In between Input and Output
Explanation: A keyboard is an input device because it sends keystrokes and commands into the computer.
Correct answer: Input- A. Notebook
- B. Journal
- C. Diary
- D. Briefcase
Explanation: A notebook computer, commonly called a laptop, combines the display, keyboard, storage, and processor in one portable unit.
Correct answer: Notebook- A. semiconductor
- B. decimal
- C. binary
- D. RAM
Explanation: Digital computers encode data and programs in binary, using the two basic digits 0 and 1.
Correct answer: binary- A. in case of traffic overloading
- B. when a system terminates
- C. when connection between two nodes terminates
- D. none of the mentioned
Explanation: Network congestion occurs when traffic or data load exceeds the network's available capacity, causing delays or packet loss.
Correct answer: in case of traffic overloading- A. Printed on printer
- B. Stored in floppy
- C. Store in CD
- D. Store ih hard disk
Explanation: A hard copy is a physical, usually printed, representation of a document that can be handled directly.
Correct answer: Printed on printer- A. Super computer
- B. Micro computer
- C. Mini computer
- D. All of these
Explanation: A supercomputer is designed to provide far greater processing speed and computational capacity than microcomputers or minicomputers.
Correct answer: Super computer- A. Motherboard
- B. ALU
- C. Control unit
- D. Megahertz
Explanation: The control unit fetches and decodes instructions, then directs the ALU, memory, and input/output components.
Correct answer: Control unit414. What do you call the smallest controllable element of a picture represented on a computer screen ?
- A. Bit
- B. Pixel
- C. Point
- D. Cell
Explanation: A pixel is the smallest addressable picture element on a computer display, and an image is formed from many pixels.
Correct answer: Pixel- A. Floppy Disc
- B. Monitor
- C. Tape Drive
- D. CD
Explanation: A monitor is an output device that displays information rather than storing it.
Correct answer: Monitor- A. the hard disk
- B. main memory
- C. the control unit
- D. read only memory
Explanation: Main memory temporarily holds the programs and data currently being processed, while the hard disk provides longer-term secondary storage.
Correct answer: main memory- A. Secondary storage
- B. ROM
- C. RAM
- D. CPU
Explanation: RAM temporarily stores active programs, input data, and results while the CPU processes them.
Correct answer: RAM- A. Extended binary coded decimal information code
- B. Extended binary coded decimal interchange code
- C. Extended bootable computerised digital infrared calculator
- D. Extended bit comparable to digital interface for computer
Explanation: EBCDIC expands to Extended Binary Coded Decimal Interchange Code, an 8-bit character encoding historically used mainly on IBM mainframe…
Correct answer: Extended binary coded decimal interchange code- A. base 64 encoding
- B. base 32 encoding
- C. base 16 encoding
- D. base 8 encoding
Explanation: Base64 represents binary data using a set of 64 ASCII characters, making the data suitable for text-based systems.
Correct answer: base 64 encoding- A. Scanner
- B. Mouse
- C. Keyboard
- D. Program
Explanation: A mouse controls the on-screen pointer and sends commands when its buttons are clicked.
Correct answer: Mouse