Estimation and hard numbers Flashcards by jake reinhart | Brainscape

Q

How many bits in a byte?

A

8

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Q

How many bytes in an ASCII character?

A

1

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Q

Approximately how much is 2^10 ?

rounded to nearest power of 10

A

One Thousand

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Q

What is the metric prefix for a thousand?

A

Kilo

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Q

2^20 is approximately what?

Closest power of 10

A

One Million

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Q

What is the metric prefix for a million?

A

Mega

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Q

2^30 is approximately what?

Closest Power of 10

A

One Billion

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Q

What is the metric prefix of a brillion?

A

Giga

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Q

2^40 is approximately what?

Closest Power of 10

A

One Trillion

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Q

What is the metric prefix for a trillion?

A

**Tera*

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Q

2^50 is approximately what?

Closest Power of 10

A

One Quadrillion

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Q

What is the metric prefix for a quadrillion?

A

Peta

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Q

What is faster, memory access read or disk read?

A

Memory is fasr, disk is slow

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Q

Are simple compression algorithms fast or slow?

A

fast

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Q

Is it worth it to compress data before sending it over the internet?

A

Yes

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Q

A