Computer Studies 2022 Jamb Examination

Computer Studies 2022 Jamb Examination
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Question 131

At least how many keys is a keyboard made up of?
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A standard keyboard typically has 101 keys, which includes letters, numbers, function keys, and control keys.
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Question 132

Which type of network is usually contained inside one office building?
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A LAN (Local Area Network) connects computers within a single building or limited area.
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Question 133

Which type of network can span several building, but is usually less than 30 square miles big?
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A MAN (Metropolitan Area Network) covers a city or several nearby buildings within a limited geographical area.
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Question 134

Which of the following is not a type of computer network?
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DAN is not a recognized type of computer network, unlike VPN, CAN, and WLAN.
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Question 135

Which of the memories must be refreshed many times per second?
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Dynamic RAM (DRAM) stores data as charge in capacitors that leak over time, requiring frequent refresh cycles.
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Question 136

A half byte is known as ________.
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A half byte, consisting of 4 bits, is called a nibble in computer terminology.
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Question 137

Which of the following software cannot be categorized as an application software?
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MS-DOS is a system software, not an application software, unlike spreadsheet or word processor.
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Question 138

Running other software on idle computer without the knowledge of the organisation is called theft of ___________
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Unauthorized use of idle computer time to run other software is called theft of computer time.
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Question 139

Sensitive data can be protected from prying eyes using _________
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Encryption transforms data into a secure format, making it unreadable to unauthorized users.
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Question 140

The number of input combination for a 4 input gate is ______
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A 4-input gate has 2^4 = 16 possible input combinations.
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Computer-studies 2022 Jamb Examination
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