CompTIA Network+® Study Guide

2.7. Review Questions

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 a user interface in the form of 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 on a link on the server and receive a time-out message. What layer could be the cause 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 ...