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Data Encryption Standards Quiz

Authored by savitha K.K

Information Technology (IT)

12th Grade

Used 2+ times

Data Encryption Standards Quiz
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the key length of the Data Encryption Standard (DES)?

64 bits

56 bits

128 bits

32 bits

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many rounds does the DES encryption process consist of?

16

12

10

20

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the initial permutation (IP) in DES?

To generate keys

To rearrange bits

To discard bits

To encrypt the data

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In DES, how is the 56-bit key derived from the initial 64-bit key?

By adding bits

By discarding every 8th bit

By reversing the bits

By shifting bits

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of the S-Box in the DES encryption process?

To permute the bits

To generate the final output

To perform substitution

To expand the key

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does Triple DES (3DES) use to enhance security?

A longer key

Multiple rounds of DES

A larger block size

Different algorithms

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the block size used in the Advanced Encryption Standard (AES)?

64 bits

128 bits

256 bits

512 bits

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