What is the first step in converting a binary word to hexadecimal according to the material?

Divide into two nibbles of 4 bits

Convert each nibble into its hex value

Rejoin the converted hex values

What is an overflow error in the context of binary numbers?

When the result of an addition is too large for the number of bits the computer works with, resulting in an overflow error

When the computer performs an operation faster than usual

When the result of an addition is smaller than the number of bits the computer can handle

When the computer loses power during a calculation

What is an overflow error in the context of binary numbers?

When the result of an addition is too large for the number of bits the computer works with

When the computer performs an operation faster than usual

When the result of a subtraction is too small for the computer to handle

When the computer runs out of memory to store numbers

How do you calculate the size of a sound file in bits?

Sampling rate x resolution x seconds

Sampling rate + resolution + seconds

Sampling rate / resolution / seconds

Sampling rate - resolution - seconds

What does lossy compression do to the data?

Compresses data without removing any part of it

Makes a copy of the data without compression

How does lossy compression recreate the file after compression?

By using the remaining data and algorithms to guess the removed content

By using the original data without any changes

By using encryption algorithms to secure the data

By asking the user to input the missing data

Is the uncompressed data from a lossy compression technique the same as the original?

No, it is in a different format

Would lossy compression be suitable for compressing a computer program?

No, because the program might not function correctly

Yes, because it makes the program run faster

Yes, because it enhances the program's features

No, because it increases the size of the program

What does lossless image compression do?

Finds groups of repeating data and records the data only once along with the number of times it was repeated

Permanently removes some data to reduce file size

Reduces the color range of the image to compress the file size

Encrypts the image data to make it smaller

When data is uncompressed using Run Length Encoding (RLE), how is it restored?

It is restored exactly as it was in the original

It is restored with some loss of quality

It is restored to a version smaller than the original

It is restored with additional data added

What does a Huffman code analyze in a body of text?

The frequency with which characters are used

The grammatical correctness of the text

The length of words in the text

What does the Huffman tree diagram represent in the context of the given sentence "she sells sea shells"?

The hierarchical structure of character frequencies

The binary representation of each character

The order of characters in the sentence

The frequency of each character

paper 2 quiz

Authored by Anthony Matthews

Computers

7th Grade

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95 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many bytes are there in 10 megabytes (mb)?

10,000,000 bytes

1,000,000 bytes

10,240,000 bytes

1,024,000 bytes

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Convert 200000 megabytes (mb) to gigabytes (GB).

200 GB

20 GB

2000 GB

2 GB

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many bits are there in 10000 bytes?

80,000 bits

100,000 bits

800,000 bits

10,000 bits

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many bytes are there in 2 terabytes (TB)?

2,000,000,000,000 bytes

2,147,483,648 bytes

200,000,000,000 bytes

2,000,000 bytes

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of 1 byte in bits?

4 bits

8 bits

1000 bits

16 bits

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many bytes are there in 1 kilobyte (kB)?

100 bytes

1000 bytes

1024 bytes

8 bytes

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does 1 nibble represent?

2 bits

8 bits

4 bits

16 bits

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paper 2 quiz

How many bytes are there in 10 megabytes (mb)?

Convert 200000 megabytes (mb) to gigabytes (GB).

How many bits are there in 10000 bytes?

How many bytes are there in 2 terabytes (TB)?

What is the value of 1 byte in bits?

How many bytes are there in 1 kilobyte (kB)?

What does 1 nibble represent?

How many kilobytes are in 1 megabyte (MB)?

How many gigabytes are there in 1 terabyte (TB)?

How many terabytes are there in a petabyte?

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