Tribhuvan University
Bachelor of Science in Computer Science and Information Technology
Semester 7 · Model question
Course Title: Network Security (CSC416)
Full Marks: 60Pass Marks: 24Time: 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.
Group A
Attempt any TWO question.(2 × 10 = 20)
- 1.10
What is security association in IPSEC? Describe how Encapsulating security payload protocol provides confidentiality and authentication in IPSEC.
- 2.10
Differentiate TLS session from TLS connection. How TLS Record Protocol guarantees confidentiality and message integrity? Discuss its operations.
- 3.10
Discuss the security threats that might occur in wireless networks. Describe the IEEE 802.11i phases of operation.
Group B
Attempt any EIGHT question.(8 × 5 = 40)
- 4.5
What is network security? How it differs from computer and information security?
- 5.5
How remote user authentication is done using symmetric encryption?
Answer comingAlso asked in 2082
- 6.5
What is port forwarding? How SSH provides local forwarding and remote forwarding?
- 7.5
How device security, client/server traffic security, and barrier security sets mobile device security strategy?
- 8.5
What is DNS Security Extensions (DNSSEC)? How DNSSEC is designed to protect DNS clients from accepting forged or altered DNS resource records?
- 9.5
Describe the four principal services provided by S/MIME.
- 10.5
What is intrusion? Discuss different approaches of intrusion detection.
- 11.5
What is the difference between transport mode and tunnel mode in IPSEC?
- 12.5
Describe the services provided by a service provider under cloud security as a service.
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