Interactive end-of-chapter exercises


Supplement to Computer Networking: A Top Down Approach 8th Edition


"Tell me and I forget. Show me and I remember. Involve me and I understand." Chinese proverb

Textbook Cover

The IP Stack and Protocol Layering

In the scenario below, imagine that you're sending an http request to another machine somewhere on the network.



Question List


1. What layer in the IP stack best corresponds to the phrase: 'handles the delivery of segments from the application layer, may be reliable or unreliable'

2. What layer in the IP stack best corresponds to the phrase: 'passes frames from one node to another across some medium'

3. What layer in the IP stack best corresponds to the phrase: 'handles messages from a variety of network applications'

4. What layer in the IP stack best corresponds to the phrase: 'moves datagrams from the source host to the destination host'

5. What layer in the IP stack best corresponds to the phrase: 'bits live on the wire'

6. What layer corresponds to box 1?

7. What layer corresponds to box 2?

8. What layer corresponds to box 3?

9. What layer corresponds to box 4?

10. What layer corresponds to box 5?

11. What layer corresponds to box 6?

12. What layer corresponds to box 7?

13. What layer corresponds to box 8?

14. What layer corresponds to box 9?

15. What layer corresponds to box 10?

16. What layer corresponds to box 11?

17. What layer corresponds to box 12?

18. What layer corresponds to box 13?

19. What layer corresponds to box 14?

20. What layer corresponds to box 15?




Solution


1. The given phrase corresponds to the Transport Layer.

2. The given phrase corresponds to the Link Layer.

3. The given phrase corresponds to the Application Layer.

4. The given phrase corresponds to the Network Layer.

5. The given phrase corresponds to the Physical Layer.

6. Box 1 is the Application Layer.

7. Box 2 is the Transport Layer.

8. Box 3 is the Network Layer.

9. Box 4 is the Link Layer.

10. Box 5 is the Physical Layer.

11. Box 6 is the Physical Layer.

12. Box 7 is the Link Layer.

13. Box 8 is the Physical Layer.

14. Box 9 is the Link Layer.

15. Box 10 is the Network Layer.

16. Box 11 is the Physical Layer.

17. Box 12 is the Link Layer.

18. Box 13 is the Network Layer.

19. Box 14 is the Transport Layer.

20. Box 15 is the Application Layer.



That's incorrect

That's correct

The answer was: Transport Layer

Question 1 of 20

The answer was: Link Layer

Question 2 of 20

The answer was: Application Layer

Question 3 of 20

The answer was: Network Layer

Question 4 of 20

The answer was: Physical Layer

Question 5 of 20

The answer was: Application Layer

Question 6 of 20

The answer was: Transport Layer

Question 7 of 20

The answer was: Network Layer

Question 8 of 20

The answer was: Link Layer

Question 9 of 20

The answer was: Physical Layer

Question 10 of 20

The answer was: Physical Layer

Question 11 of 20

The answer was: Link Layer

Question 12 of 20

The answer was: Physical Layer

Question 13 of 20

The answer was: Link Layer

Question 14 of 20

The answer was: Network Layer

Question 15 of 20

The answer was: Physical Layer

Question 16 of 20

The answer was: Link Layer

Question 17 of 20

The answer was: Network Layer

Question 18 of 20

The answer was: Transport Layer

Question 19 of 20

The answer was: Application Layer

Question 20 of 20

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