What kind of data can you send by e-mail?
Answer: D
Email can carry audio, pictures and video - any kind of file.
MIME, the Multipurpose Internet Mail Extensions standard, encodes binary data into text so it can travel through mail systems designed for plain characters, and marks its type so the recipient's program can open it.
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What is full form of ROM ?
Answer: B
ROM stands for read only memory.
Its contents are fixed and non-volatile, surviving without power, which is why the firmware that starts a computer is held in it.
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C is what kind of language ?
Answer: A
C is a third generation high-level language.
Dennis Ritchie created it at Bell Labs in 1972 to rewrite UNIX. It is high level in that it is portable and structured, but close enough to the machine to be used for operating systems.
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Changing computer language of 1's and 0's to characters that a person can understand is...
Answer: C
Turning the computer's ones and zeros into characters a person can read is decoding.
The bits are mapped to characters by a code such as ASCII or Unicode, in which each letter has a numeric value - A is 65 in ASCII.
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Random Access Memory (RAM) is which storage of device ?
Answer: D
RAM is primary storage.
Primary storage is the memory the processor can address directly and read in nanoseconds. It is volatile, losing its contents when power is removed, which is why work must be saved to secondary storage.
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What is the Websites code for the country United Kingdom?
Answer: B
The country code for the United Kingdom is .uk.
Unusually, the ISO code for the country is GB, but UK was adopted for the domain and retained. Registrations are commonly at the second level, as .co.uk or .ac.uk.
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RAM stands for...
Answer: A
RAM stands for random access memory.
Any location can be read or written in the same time, regardless of position - unlike tape, which must be wound through. It is volatile: its contents vanish when power is removed.
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AOL stands for...
Answer: D
AOL stands for America Online.
It was the dominant consumer internet service of the 1990s in the United States, its CDs mailed to millions of households. Its merger with Time Warner in 2000 is often cited as the worst in corporate history.
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The sampling rate, (how many samples per second are stored) for a CD is...?
Answer: C
A CD samples at 44.1 kHz.
By the Nyquist theorem a sampling rate must be more than twice the highest frequency to be recorded; human hearing reaches about 20 kHz, so 44.1 kHz captures it with a margin for the anti-aliasing filter.
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A computer virus that actively attacks an anti-virus program or programs in an effort to prevent detection is...
Answer: B
A virus that attacks anti-virus software to avoid detection is a retrovirus.
It disables the scanner, corrupts its signature database or blocks its updates. The name is borrowed from biology, where a retrovirus subverts the host's own machinery.
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