Review Questions

You can find the answers to the review questions in Appendix B.

1. Host 1 sent a SYN packet to Host 2. What will Host 2 send in response?

   1. ACK
   2. NAK
   3. SYN/ACK
   4. SYN/NAK
   5. SYN

2. TCP and UDP reside at which layer of the OSI model?

   1. 1
   2. 2
   3. 3
   4. 4

3. Which layer of the OSI model provides an entry point for programs to access the network infrastructure?

   1. Application
   2. Transport
   3. Network
   4. Physical

4. You are connected to a server on the Internet and you click a link on the server and receive a time-out message. What layer could be the source of this message?

   1. Application
   2. Transport
   3. Network
   4. Physical

5. Which layer of the OSI model is responsible for code and character-set conversion as well as recognizing data formats?

   1. Application
   2. Presentation
   3. Session
   4. Network

6. At which layers of the OSI model do bridges, hubs, and routers primarily operate, respectively?

   1. Physical, Physical, Data Link
   2. Data Link, Data Link, Network
   3. Data Link, Physical, Network
   4. Physical, Data Link, Network

7. Which layer...