[Q.1] Symmetric key encryption is known as

a) public key encryption b) secret key encryption

c) PGP d) PKI

Ans: (b) secret key encryption

[Q.2] A ____________ is a software application that acts as a filter between a company’s closed group network

and the internet.

a) Firewall b) virtual private network

c) proxy server d) router

Ans: (a) firewall

[Q.3] Which of the following is a passive attack?

a) Interruption b) Interception

c) Fabrication d) Modification

Ans: (b) Interception

4) Which of the following usually observe each activity on the internet of the victim, gather all information in the background, and send it to someone else?

a) Malware b) Spyware c) Adware d) All of the above

Ans: (b) Spyware