IPsec defines two protocols: _______ and ________

A. Ah; SSL
B. Pgp; esp
C. Ah; esp
D. Pgp; SSL

______ provides authentication at the IP level.

A. Ah
B. Esp
C. Pgp
D. Ssl

Which two types of IPsec can be used to secure communications between two LANs?

A. Ah tunnel mode
B. Esp tunnel mode
C. Both ah tunnel mode and esp tunnel mode
D. Esp transport mode

Which two types of encryption protocols can be used to secure the authentication of computers using IPsec?

A. Kerberos v5
B. Sha
C. Md5
D. Both sha and md5

Which mode of IPsec should you use to assure the security and confidentiality of data within the same LAN?

A. Ah transport mode
B. Esp transport mode
C. Esp tunnel mode
D. Ah tunnel mode

The ______ field is used to detect errors over the entire user datagram.

A. Udp header
B. Checksum
C. Source port
D. Destination port

Which is the correct expression for the length of UDP datagram?

A. Udp length = ip length €? ip header’s length
B. Udp length = UDP length €? UDP header’s length
C. Udp length = ip length + ip header’s length
D. Udp length = UDP length + UDP header’s length

“Total length” field in UDP packet header is the length of _________

A. .
B. Only data
C. Only checksum
D. Udp header plus data

The port number is “ephemeral port number”, if the source host is _______

A. Ntp
B. Echo
C. Server
D. Client

What is the header size of a UDP packet?

A. 8 bytes
B. 8 bits
C. 16 bytes
D. 124 bytes