Q1[4 Marks]Switching and Multiplexing
Compare circuit switching and packet switching. Discuss FDM and TDM hierarchies in block.
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Telecommunication
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Institute of Engineering • 2083 Baishakh Board Examination
Q2[4 Marks]Network Models
What are protocol suites? Discuss each in TCP/IP model. Explain xDSL family in telecom network.
Q3[4 Marks]Physical and Data Link Layer
In GoBack-4 (GB4) ARQ if every 6th packet is lost and if we have to send 10 packets, then how many transmissions are required? What could be the total transmission in selective repeat (SR)?
Q4[2 Marks]Network Layer
Compare the IPv4 header fields and function with neat diagram. List the extension header ordering.
Q5[2 Marks]Network Layer
Explain the IPv4 to IPv6 tunneling transition with their IPv6 address format.
Q6[8 Marks]Transport Layer
How connection is established and released using token bucket? Explain in TCP? Flow congestions can be handled with proper diagram.
Q7[8 Marks]Network Layer
Write short notes on: (Any Two) [2x4]
(a) RFC
(b) Addressing format in IPv6
(c) AES
(d) VPN
Q8[6 Marks]Network Layer
Suppose a company has IP address on 150.10.0.0 having 6 departments containing 2020, 50, 507, 1010, 225, and 58 hosts. As a network engineer, design IP plan for the network using VLSM. List out the CIDR, subnet mask, network ID, broadcast ID usable host IP ranges and wasted IP address for each department.
Q9[3 Marks]Application Layer
Explain the use of packet tracer. Explain the types of DNS queries with examples of www.google.com.
Q10[2 Marks]Network Layer
Describe CIA of security principle. Encrypt a word "hacker" using RSA algorithm.