Information Cyber Security Set 6 MCQs

Q1 | ECC encryption system is __________

symmetric key encryption algorithm

asymmetric key encryption algorithm

not an encryption algorithm

block cipher method

Q2 | ________function creates a message digest out of a message.

encryption

decryption

hash

none of the above

Q3 | Extensions to the X.509 certificates were added in version ____

1

2

3

4

Q4 | A digital signature needs ____ system

symmetric-key

asymmetric-key

either (a) or (b)

neither (a) nor (b)

Q5 | “Elliptic curve cryptography follows the associative property.”

TRUE

FALSE

Q6 | ECC stands for

elliptic curve cryptography

enhanced curve cryptography

elliptic cone cryptography

eclipse curve cryptography

Q7 | When a hash function is used to provide message authentication, the hash function value is referred to as

message field

message digest

message score

message leap

Q8 | Message authentication code is also known as

key code

hash code

keyed hash function

message key hash function

Q9 | The main difference in MACs and digital signatures is that, in digital signatures the hash value of the message is encrypted with a user’s public key.

TRUE

FALSE

Q10 | The DSS signature uses which hash algorithm?

md5

sha-2

sha-1

does not use hash algorithm

Q11 | What is the size of the RSA signature hash after the MD5 and SHA-1 processing?

42 bytes

32 bytes

36 bytes

48 bytes

Q12 | In the handshake protocol which is the message type first sent between client and server ?

server_hello

client_hello

hello_request

certificate_request

Q13 | One commonly used public-key cryptography method is the ______ algorithm.

rss

ras

rsa

raa

Q14 | he ________ method provides a one-time session key for two parties.

diffie-hellman

rsa

des

aes

Q15 | The _________ attack can endanger the security of the Diffie-Hellman method if two parties are not authenticated to each other.

man-in-the-middle

ciphertext attack

plaintext attack

none of the above

Q16 | 1. VPN is abbreviated as __________

visual private network

virtual protocol network

virtual private network

virtual protocol networking

Q17 | __________ provides an isolated tunnel across a public network for sending and receiving data privately as if the computing devices were directly connected to the private network.

visual private network

virtual protocol network

virtual protocol networking

virtual private network

Q18 | Which of the statements are not true to classify VPN systems?

protocols used for tunnelling the traffic

whether vpns are providing site-to-site or remote access connection

securing the network from bots and malwares

levels of security provided for sending and receiving data privately

Q19 | What types of protocols are used in VPNs?

application level protocols

tunnelling protocols

network protocols

mailing protocols

Q20 | VPNs uses encryption techniques to maintain security and privacy which communicating remotely via public network.

TRUE

FALSE

Q21 | There are _________ types of VPNs.

3

2

5

4

Q22 | _________ type of VPNs are used for home private and secure connectivity.

remote access vpns

site-to-site vpns

peer-to-peer vpns

router-to-router vpns

Q23 | Which types of VPNs are used for corporate connectivity across companies residing in different geographical location?

remote access vpns

site-to-site vpns

peer-to-peer vpns

country-to-country vpns

Q24 | Site-to-Site VPN architecture is also known as _________

remote connection based vpns

peer-to-peer vpns

extranet based vpn

country-to-country vpns

Q25 | There are ________ types of VPN protocols.

3

4

5

6