Computer Knowledge Practice Question and Answer
8 Q: Which of the following purposes the computer is being used at home-
1395 063d0c929e1da9912d9d41ea8
63d0c929e1da9912d9d41ea8- 1Social mediafalse
- 2Homework for school childrenfalse
- 3entertainmentfalse
- 4All of the abovetrue
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Answer : 4. "All of the above"
Q: What is the first name in an email address called?
1394 063e631e77407bd1b2d1de604
63e631e77407bd1b2d1de604- 1domainfalse
- 2user idtrue
- 3Rangefalse
- 4none of the abovefalse
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Answer : 2. "user id"
Q: What does a programmer need to know in order to create system software?
1394 063ecc78c35d86258ec99e69a
63ecc78c35d86258ec99e69a- 1hardwaretrue
- 2Firmwarefalse
- 3Apply warefalse
- 4none of the abovefalse
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Answer : 1. "hardware"
Q: What does PSK mean in the context of passport application?
1393 061a754c94bf20d5096c83f6a
61a754c94bf20d5096c83f6a- 1Public Help Centerfalse
- 2Public Service Centerfalse
- 3Passport Seva Kendratrue
- 4None of thesefalse
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Answer : 3. "Passport Seva Kendra"
Q: M.S. Which data types cannot be changed by the user in Access 2010? Choose the most appropriate option.
1392 064ba76fae2108a7239398507
64ba76fae2108a7239398507- 1Auto Textfalse
- 2Date/Timefalse
- 3Auto Numberfalse
- 4All of the Abovetrue
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Answer : 4. " All of the Above"
Explanation :
In MS Access 2010, data types cannot be entered or changed by the user.
- Auto Text
- Date/Time
- Auto Number
Q: Which is used to delete any file or folder in Windows permanently?
1392 064b9204be154aff5338108ef
64b9204be154aff5338108ef- 1Shift + Delete + Entertrue
- 2Ctrl + Shift + Deletefalse
- 3Shift + Delete + Space Barfalse
- 4Ctrl+ Shift + Dfalse
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Answer : 1. "Shift + Delete + Enter"
Explanation :
1. To permanently delete any file or folder in Windows, Shift + Delete + Enter is used.
Q: What is the full form of OSI in a network?
1391 0619f6071c1c85f0fbf505c9a
619f6071c1c85f0fbf505c9a- 1Open Source Interconnectionfalse
- 2Open Software Interconnectionfalse
- 3Open Systems Interconnectiontrue
- 4Old Source Interconnectionfalse
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Answer : 3. "Open Systems Interconnection"
Q: Which of the following methods is used to secure and protect sensitive data on computer systems?
1390 06493fcedab3c5fffc2cc5018
6493fcedab3c5fffc2cc5018- 1encryptiontrue
- 2Defragmentationfalse
- 3Formattingfalse
- 4rebootingfalse
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Answer : 1. "encryption"
Explanation :
1. Encryption is the process of encoding data in cryptography.
2. This process transforms the plaintext or original representation of data into ciphertext or alternative representation of the data.
3. Only authorized parties should be able to decipher the ciphertext back into plaintext and access the original data.
4. Encryption in itself does not prevent interference, but it hinders interceptors from deciphering the content.