Information and Cyber Security (ICS) | Set 2

1. An attack in which the user receives unwanted amount of e- mails.

A. smurfing

B. denial of service

C. e-mail bombing

D. ping storm

Correct : C. e-mail bombing

2. In same keys are implemented for encrypting as well as decrypting the information.

A. symmetric key encryption

B. asymmetric key encryption

C. asymmetric key decryption

D. hash-based key encryption

Correct : A. symmetric key encryption

3. The procedure to add bits to the last block is termed as

A. decryption

B. hashing

C. tuning

D. padding

Correct : D. padding

4. In asymmetric key cryptography, the private key is kept by

A. sender

B. receiver

C. sender and receiver

D. all the connected devices to the network

Correct : B. receiver

5. Cryptanalysis is used

A. to find some insecurity in a cryptographic scheme

B. to increase the speed

C. to encrypt the data

D. to make new ciphers

Correct : A. to find some insecurity in a cryptographic scheme

6. Conventional cryptography is also known as or symmetric-key encryption.

A. secret-key

B. public key

C. protected key

D. primary key

Correct : A. secret-key

7. is the art & science of cracking the cipher-text without knowing the key.

A. cracking

B. cryptanalysis

C. cryptography

D. crypto-hacking

Correct : B. cryptanalysis

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