Computers and IT MCQs
Computer Awareness Questions and Quiz for Banking, IBPS, RRB, RBI, SBI, NABARD examinations of 2024-2025. Computer Awareness MCQs for Competitive Exams. GKToday Computer Awareness for IBPS PO, IBPS Clerk, Bank PO, Bank Clerk and other entrance / competitive examinations.
21. SysRq (System Request) key is a feature of which of the following type of keyboards?
[A] XT Keyboard
[B] AT Keyboard
[C] Enhanced Keyboard
[D] Windows Keyboard
Show Answer
Correct Answer: B [AT Keyboard]
Notes:
System Request is a key on personal computer keyboard. It has no standard use. It was Introduced by IBM with the PC/AT. It was intended to be available as a special key to directly invoke low-level operating system functions.
22. It is a type of printer which can print multiple carbon copies at once. What is the name of this type of printer?
[A] Impact Printer
[B] Laser Printer
[C] Inkjet Printer
[D] None of the Above
Show Answer
Correct Answer: A [Impact Printer]
Notes:
Impact printer refers to printers that work by banging a head or needle against an ink ribbon to make a mark on the paper. This includes dot-matrix printers, daisy-wheel printers, and line printers.
23. An assembler is a program that converts assembly language into machine code. Which of the following is not a type of assembler ?
[A] One pass
[B] Two pass
[C] Load and Go
[D] Three pass
Show Answer
Correct Answer: D [Three pass]
Notes:
An assembler is a program that translates assembly language into machine language. There are many types of assemblers .Some of them are one pass assembler, two pass assemble, laod and go assembler etc.
24. What is the name given to any software that is included with a new computer, hardware, or other software program?
[A] Bundled Software
[B] Pre-installed Software
[C] Both a and b
[D] Free Software
Show Answer
Correct Answer: C [Both a and b]
Notes:
Bundle ware, pre-installed software, Bundled software is any software that is included with a new computer, hardware, or other software program. Bundled software is included at no additional cost to the user.
25. What is the name given to the undoing of partly completed database changes?
[A] Commit
[B] Edit
[C] Undo
[D] Rollback
Show Answer
Correct Answer: D [Rollback]
Notes:
A rollback is the undoing of partly completed database changes when a database transaction is determined to have failed.
26. Which among the following correctly defines a Wide Area Network?
[A] A Wide Area Network is quite bigger network than the LAN.
[B] The internet is one of the biggest WAN in the world.
[C] In a WAN network, messages are transmitted fast.
[D] All of the Above
Show Answer
Correct Answer: D [All of the Above]
Notes:
A Wide Area Network is not limited to a single location, but it spans over a large geographical area through a telephone line, fiber optic cable or satellite links.
27. Which of the following represents a sine wave?
[A] Non-periodic analog signal
[B] Periodic analog signal
[C] Periodic digital signal
[D] Non-periodic digital signal
Show Answer
Correct Answer: B [Periodic analog signal]
Notes:
The sine wave is the most fundamental form of a periodic analog signal. A periodic signal completes a pattern within a measurable time frame, called a period, and repeats that pattern over subsequent identical periods.
28. Which of the following can be the source of data?
[A] Computer
[B] Telephone handset
[C] Video Camera
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Typically the source of data is a computer, but it can be any other electronic equipment such as telephone handset, video camera, etc, which can generate data for transmission to some destination.
29. What do we call the time required to send one single bit?
[A] Bit interval
[B] Bit lag
[C] Bit rate
[D] Bit frequency
Show Answer
Correct Answer: A [Bit interval]
Notes:
The bit interval is the time required to send one single bit. It, along with bit rate, is used to describe the digital signals.
30. Where does the bending of EM waves occurs in the atmosphere?
[A] Troposphere
[B] Mesosphere
[C] Stratosphere
[D] Ionosphere
Show Answer
Correct Answer: D [Ionosphere]
Notes:
The phenomenon of bending of electromagnetic waves occurs in Ionosphere and they are diverted towards the earth. This is helpful in skywave propagation.
