Networking Architecture

10 essay questions in total

Requirements: Answers should be

Question

Networking Architecture

10 essay questions in total

Requirements: Answers should be

in a narrative format (your own words, not the books). Do not use lists (bullets or numbering). A minimum of 200 words per question is recommended. * Each answer must include the question and number that you are responding to.

Select one of the following:

1a. Describe the three general classes of failure network designers have to take into consideration.

1b. What is Bandwidth and Latency and describe how it is measured? (Include an example)

Select one of the following:

2a. Encoding bits onto signals follows several schemes. Describe the NRZ, NRZI, MANCHESTER and 4B/5B pros and cons of encoding.

2b. What is Framing? Describe each of the following approaches of framing: (four parts) a) BISYNC, b) PPP, c) DDCMP and the Bit Oriented d) HDLC.

Select one of the following:

3a. Error Detection provides for accurate data transfer. Be able to explain the following methods to detect data errors: (two parts) a) Two-Dimensional Parity and b) Checksum.

3b. There are several ways to have reliable transmission. Explain how they work and the pros/cons of each.

Select one of the following:

4a. How does a Wireless network the same as a ‘wired’ and how is it different than a ‘wired’ network?

4b. How does a wireless network avoid and handle collisions?

4c. What are the pros/cons of a wireless distributed system?

4d. How does wireless handle security?

Answer the following: (three parts)

5. The switch decides which output link to place each packet on by looking at the header. The switch does this in three different ways: a) datagram or connectionless approach, b) virtual circuit or connection-oriented approach and, c) source routing. Describe each in detail.

Select one of the following:

6a. How does a learning bridge work? What is a Spanning Tree Algorithm?

6b. How is Fragmentation and Reassembly handled from host-to-host connections across various types of networks?

6c. Explain what is Subnetting and Classless Addressing. How do they function?

6d. What is the purpose of Address Translation? How does it accomplish its tasks?

Select one of the following:

7a. Explain how Virtual Networks and Tunnels work across the network. (include pros/cons)

7b. What is the difference between a forwarding table and a routing table? (give an example)

7c. Explain what is and how does a Distance-Vector (RIP) work.

7d. Explain how a link-state (OSPF) intradomain routing protocol functions. (include reliable flooding and the open shortest path first protocols)

7e. Describe switches: input, output ports and fabric. (Include their relationship to each other)

Select one of the following:

8a. Why would you divide the network into routing areas?

8b. What is BGP in Interdomain Routing?

8c. What are some of the challenges in Interdomain Routing?

8d. What is the purpose of using Common AS Relationships and Policies? (describe the three types)

Select one of the following:

9a. Describe the basic Muicast model?

9b. How are the ways that Muicasts are routed? (there are a number of them)

9c. What is Muiprotocol Label Switching (MPLS)?

9d. Explain how Destination-Based Forwarding functions.

9e. How does MPLS do ‘source routing’?

Answer the following:

10. Mobile Devices: (three parts)

a. What are some of the challenges of Routing among Mobile Devices?

b. How are some of the challenges of Mobile hosts and mobility agents resolved?

c. Describe the Route Optimization in Mobile IP.

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