Computer Science GK Questions and Answers
Laser printer resolution is specified in terms of:
(A) DPI
(B) LPM
(C) CPM
(D) LSI
Correct Answer : A
Explanation :
Laser printer resolution is specified in terms of DPI, which stands for Dots Per Inch. DPI refers to the number of dots a printer can place within one square inch of space on a printed page. Higher DPI values generally result in sharper and more detailed printouts. Laser printers typically offer higher DPI resolutions, such as 600 DPI or 1200 DPI, leading to high-quality text and graphics output.
BY using which Tab can you add a text box in word document?
(A) edit
(B) insert
(C) format
(D) home
Correct Answer : B
what is the key combination to open the 'Save As' dialog box in MS PowerPoint?
(A) F12.
(B) Alt+F then D
(C) Alt+F then E
(D) Alt+F then O
Correct Answer : A
Explanation :
In MS PowerPoint, the key combination to open the 'Save As' dialog box is F12. Pressing F12 opens the 'Save As' dialog box directly, allowing you to save the current presentation with a new name or in a different location.
which of the following is an example of a volatile memory.
(A) cd-rom
(B) RAM
(C) Rome
(D) hard disk
Correct Answer : B
Explanation :
RAM (Random Access Memory) is an example of volatile memory. Volatile memory is a type of computer memory that requires power to maintain the stored information. When the computer is powered off or restarted, the data stored in RAM is erased. This is in contrast to non-volatile memory like hard drives or SSDs, where data is retained even when the power is turned off. Volatile memory, such as RAM, provides fast access to data for the computer's processor but does not retain data when the system is powered down.
Data that is copied from an application is stored in the ......
(A) Driver
(B) terminal
(C) prompt
(D) clipboard
Correct Answer : D
Explanation :
Data that is copied from an application is stored in the clipboard. The clipboard is a temporary storage area in a computer's memory that holds the data that has been cut or copied, allowing users to paste the data into another location or application. This functionality is commonly used for tasks such as copying text, images, or files from one place and pasting them into another.
In general a Blu-ray high definition disk has ........ resolution.
(A) 520 x 380 pixel
(B) 1920 x 1080 pixel
(C) 2016 x 1080 pixel
(D) 3804 x 2016 pixel
Correct Answer : B
which of the following topology uses hub?
(A) bus
(B) point to point
(C) star
(D) Ring
Correct Answer : C
The printer driver is a
(A) Software
(B) hardware
(C) VMware
(D) malware
Correct Answer : A
In which printer ribbon is used?
(A) plotter
(B) laser printer
(C) dot matrix printer
(D) inkjet printer
Correct Answer : C
Explanation :
Dot matrix printers use printer ribbons. A dot matrix printer is a type of impact printer that produces characters and images on paper by striking a series of dots against an ink-soaked ribbon. The ribbon transfers ink onto the paper to create text and graphics. Dot matrix printers were widely used in the past for tasks such as printing invoices, receipts, and multipart forms.
What protocols have been developed to provide signaling control for establishing video conferencing technology?
(A) session initiation protocol and H.323
(B) Section Internet Protocol and H.223
(C) session internet parameters and P.323
(D) session internet protocol and P.223
Correct Answer : A
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Rajesh Bhatia
A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.
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