Network Security
This course covers the fundamental concepts of network security protocols, wireless security concepts, basics of security in cloud and IoT.
Tribhuvan University
Institute of Science and Technology
2082
Bachelor Level / elective-iii-semester / Science
Computer Science and Information Technology( CSC416 )
Network Security
Full Marks: 60 + 20 + 20
Pass Marks: 24 + 8 + 8
Time: 3 Hours
Candidates are required to give their answers in their own words as far as practicable.
The figures in the margin indicate full marks.
SECTION - A
Attempt any TWO questions.
What is DNSSEC? How it works? Describe the DNS based authentication of named entities.
How local forwarding and remote forwarding is done in SSH? Describe SSH connection protocol with message exchange.
List the applications of IPSec. What kind of parameters used in security association and security association database in IPSec?
SECTION - B
Attempt any EIGHT questions.
Describe different forms of protections used in computer network security.
How mutual and one-way authentication can be done in remote user authentication using asymmetric encryption?
Mention the usages of change cipher spec and alert protocols in TLS.
How four way handshake and group key handshake is done in IEEE 802.11i Phases of Operation?
Differentiate between Temporal Key Integrity Protocol (TKIP), and the Counter Mode-CBC MAC Protocol (CCMP).
Explain the sender policy framework in sender and receiver side.
How can you use intrusion detection system to secure network?
Explain the cloud security risks and countermeasures.
How IoT environments are secured. Explain.