CertiGuide to Network+  9  Appendix A: Answers to Success Questions and Real World Exam Questions       9  Chapter 1010: Real World Exam Answers

Answers to Questions 21-25 1 Answers to Questions 31-35

26. When is a repeater useful to extend cable length signals?

A. In areas that contain large amounts of electrical interference

B. In areas where maximum distances must be extended

C. When more than 16 routers connect two communication points

D. When a 10mb LAN needs to connect to a 100mb LAN

E. In areas where CAT5 cable is not practical to use

Explanation: Repeaters generally are used to strengthen cable signals long cable runs attenuate a signal.

& Domain 1.6: Identify the purpose, features, and functions of the following network components: hubs, switches, bridges, routers, gateways, CSU/DSU, network interface cards, ISDN adapters/ System area Network cards, modems.

27. What device is required to connect networks using different protocols, such as IPX and TCP/IP?

A. Bridge

B. Switch

C. Router

D. Hub

E. Repeater

Explanation: A Router can be used to connect two or more segments or networks. The networks may or may not be of the same topology or protocol.

& Domain 1.6: Identify the purpose, features, and functions of the following network components: hubs, switches, bridges, routers, CSU/DSU, Network Interface Card/ISDN adapter/System area Network cards, wireless access points, modems.

28. What kind of device might you need if you wanted to connect your corporate LAN to the Internet?

A. An NT server

B. A Bridge

C. A Router

D. A Brouter

E. A Web Server

& Explanation: Routers are typically used to connect LANs to the Internet.

& Domain 1.6: Identify the purpose, features, and functions of the following network components: hubs, switches, bridges, routers, gateways, CSU/DSU, network interface cards/ISDN adapters/System area Network cards, wireless access points, modems.

29. What layer of the OSI model is responsible for packaging and transmitting data on the physical media?

A. The Session Layer

B. The transmission Layer

C. The Transport Layer

D. The Data-Link Layer

E. The Physical Layer

Explanation: Data bits placed and received on the media are handled at the Physical Layer of the OSI Model.

& Domain 2.2: Identify the seven layers of the OSI model in their functions

30. Bridges operate at the _____________ of the OSI model.

A. The Data-Link Layer

B. Top Layer

C. The Transport Layer

D. The Session Layer

E. The Network Layer

Explanation: Bridges operate at the Data Link layer of the OSI model by directing network traffic between segments.

& Domain 2.2: Identify the seven layers of the OSI model and their functions

Answers to Questions 21-25 1 Answers to Questions 31-35