Computer Knowledge Practice Question and Answer
8Q: The brain of any computer system is 3104 15b5cc607e4d2b4197774b54e
5b5cc607e4d2b4197774b54e- 1CPUtrue
- 2Memoryfalse
- 3Controlfalse
- 4ALUfalse
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Answer : 1. "CPU"
Explanation :
Answer: A) CPU Explanation: Central Processing Unit (CPU) is the brain of any computer system.
Q: Word length of a personal computer is 3100 05b5cc642e4d2b4197774bb7c
5b5cc642e4d2b4197774bb7c- 132 bitfalse
- 216 bitfalse
- 38 bittrue
- 44 bitfalse
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Answer : 3. "8 bit"
Explanation :
Answer: C) 8 bit Explanation: Word length refers to the number of bits processed by a computer's CPU in one go. These days, typically 32 bits or 64 bits are used. Data bus size, instruction size, address size are usually multiples of the word size.
Q: How can the user determine which programs are available on a computer ?
3087 05e96907fa7185666067b5de3
5e96907fa7185666067b5de3- 1Checking the hard disk propertiesfalse
- 2Viewing the installed programs during the booting processfalse
- 3Checking the operating system for a list of installed programstrue
- 4Checking the existing files saved on diskfalse
- 5None of thesefalse
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Answer : 3. "Checking the operating system for a list of installed programs "
Q: Which computer virus records every movement you make on the computer?
3084 163bfed2d74eba5069d5bfa4a
63bfed2d74eba5069d5bfa4a- 1Malware Androidfalse
- 2DoSfalse
- 3Key Loggertrue
- 4Trapperfalse
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Answer : 3. "Key Logger "
Explanation :
A keylogger (short for keystroke logger) is a type of computer virus or malware that records every keystroke and movement made on a computer's keyboard, including sensitive information such as passwords, credit card numbers, and personal messages. It essentially captures the user's keystrokes without their knowledge and sends this information to the attacker, posing a significant security threat.
Q: A handheld device that allows you to control your computer without typing instructions from a keyboard is known as_______.
3083 05e69ee1c755e9d6ad85dbc70
5e69ee1c755e9d6ad85dbc70- 1Tabletfalse
- 2PDAfalse
- 3Mousetrue
- 4Mikefalse
- 5None of thesefalse
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Answer : 3. "Mouse "
Q: Which is not application software?
3068 05e4e1fbddfffd759fd1122b1
5e4e1fbddfffd759fd1122b1- 1Window NTtrue
- 2Page Makerfalse
- 3WinWord XPfalse
- 4Photoshopfalse
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Answer : 1. "Window NT"
Q: 192.161.121.100 is an example of which class?
3065 05e99b2491dda1f42d77fd4f3
5e99b2491dda1f42d77fd4f3- 1Class Afalse
- 2Class Bfalse
- 3Class Ctrue
- 4Class Dfalse
- 5Class Efalse
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Answer : 3. "Class C"
Q: A table in a relational database terminology is synonymous with __.
3052 05fc8b291d0af4c56f5ec782c
5fc8b291d0af4c56f5ec782c- 1a valuefalse
- 2a rowfalse
- 3an attributefalse
- 4a columnfalse
- 5a relationtrue
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