8 semester CSE NSM-network security and management

NSM-network security and management

1.
a. what is denial of service attack
b. what is trojan horse?Explain its principle.

2.
a. what are block cipher design principles and their modes of operation?
b. what is public key cryptography?Explain RSA algorithm with example

3.Explain with example-
a. Substitution cipher
b. transposition cipher

4.how speech signal can be encrypted?describe analog and digital systems of speech encryption.

5.
a. what is the purpose and principle of digital signature?explain.
b. describe-
i) pretty good service
ii) ip sec
iii) firewalls

6.
a. what do you mean by network management?Explain with the help of NM functional flow chart.
b. give a system overview of snmpV1 network management architecture

7.
a. compare rmon1 and rmon2
b. what are security threats?how they are handled in snmpV3?

8.explain-
i) ATM network management
ii) TMN
iii) data compression techniques