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Eccouncil
Certified Encryption Specialist
212-81 Free Questions
Eccouncil 212-81 Quiz:1 Topic:12 Questions:1-5

Home
Eccouncil
Certified Encryption Specialist
212-81 Free Questions
Eccouncil 212-81 Quiz:1 Topic:12 Questions:1-5

Eccouncil 212-81 Quiz:1 Topic:12 Questions:1-5

Free Practice Mock Questions Set 1-5 (Questions:1-5) for Eccouncil 212-81 Exam, according to official Eccouncil Certified Encryption Specialist exam syllabus topic # 12

Question: 1

DES has a key space of what?

A2^128

B2^192

C2^64

D2^56

Answer : D

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Question: 2

In steganography, ________ is the data to be covertly communicated (in other words, it is the message you wish to hide).

ACarrier

BSignal

CPayload

DChannel

Answer : C

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Question: 3

In a Feistel cipher, the two halves of the block are swapped in each round. What does this provide?

ADiffusion

BConfusion

CAvalanche

DSubstitution

Answer : B

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Question: 4

Which one of the following are characteristics of a hash function? (Choose two)

ARequires a key

BOne-way

CFixed length output

DSymmetric

EFast

Answer : B, C

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Question: 5

The mode makes a block cipher into a synchronous stream cipher. It generates keystream blocks, which are then XORed with the plaintext blocks to get the ciphertext.

ACipher-block chaining (CBC)

BElectronic codebook (ECB)

COutput feedback (OFB)

DCipher feedback (CFB)

Answer : C

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Quiz 1

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