Security In The Internet - Computer Networks Questions and Answers

1.

PGP encrypts data by using a block cipher called

   A.) international data encryption algorithm
   B.) intrenet data encryption algorithm
   C.) private data encryption algorithm
   D.) none of these

Answer: Option 'A'

international data encryption algorithm

2.

WPA2 is used for security in

   A.) ethernet
   B.) bluetooth
   C.) wi-fi
   D.) none of these

Answer: Option 'C'

wi-fi

3.

IPSec is designed to provide the security at the

   A.) transport layer
   B.) network layer
   C.) application layer
   D.) session layer

Answer: Option 'B'

network layer

4.

When a DNS server accepts and uses incorrect information from a host that has no authority giving that information, then it is called

   A.) DNS lookup
   B.) DNS hijacking
   C.) DNS spoofing
   D.) none of these

Answer: Option 'C'

DNS spoofing

5.

In tunnel mode IPsec protects the

   A.) entire IP packet
   B.) IP header
   C.) IP payload
   D.) none of these

Answer: Option 'A'

entire IP packet

6.

Network layer firewall works as a

   A.) frame filter
   B.) packet filter
   C.) both (a) and (b)
   D.) none of these

Answer: Option 'B'

packet filter

7.

An attempt to make a computer resource unavailable to its intended users is called

   A.) denial-of-service attack
   B.) virus attack
   C.) botnet process
   D.) worms attack

Answer: Option 'A'

denial-of-service attack

8.

Pretty good privacy (PGP) is used in

   A.) browser security
   B.) email security
   C.) FTP security
   D.) none of these

Answer: Option 'B'

email security

9.

Network layer firewall has two sub-categories as

   A.) stateful firewall and stateless firewall
   B.) bit oriented firewall and byte oriented firewall
   C.) frame firewall and packet firewall
   D.) none of these

Answer: Option 'A'

stateful firewall and stateless firewall

10.

Extensible authentication protocol is authentication framework frequently used in

   A.) wired personal area network
   B.) wireless networks
   C.) wired local area network
   D.) none of these

Answer: Option 'B'

wireless networks


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