Mock

Question 1

What is entropy used for in a computer system?

Answer 1

To create session keys

Question 2

What cipher is used to encrypt GSM cellular comms?

Answer 2

A5/2

Question 3

What is the purpose of CERT?

Answer 3

To send out info on known vulnerabilities

Question 4

An example of a downgrade attack?

Answer 4

POODLE

Question 5

What is password entropy?

Answer 5

The type of complexity a password has

Question 6

What helps improve NAT network security?

Answer 6

Reusing IP addresses

Question 7

What is a mandatory IPSec requirement?

Answer 7

IPV6

Question 8

What is not a block cipher mode?

Answer 8

AKC

Question 9

What makes TPM immunise to malware attacks?

Answer 9

Hardware device protection

Question 10

Define salt value?

Answer 10

Adding extra data to the hash

Question 11

What is a side channel attack?

Answer 11

An attack based on information about the cryptography system

Question 12

What does the Wassenaar arrangement need?

Answer 12

An export license

Question 13

What does ISO27001 cover in crypto?

Answer 13

Policy and use of crypto controls

Question 14

What’s the key length of IDEA?

Answer 14

128-bit

Question 15

Where are Kerberos session tickets issued by?

Answer 15

KDC - key distribution centre

Question 16

What does WEP use?

Answer 16

RC4
Symmetric
24-bit
40-bit and 104-bit