Introduction to Networks Chapter 4

A network team is comparing topologies for connecting on a shared media. Which physical topology is an example of a hybrid topology for a LAN?

• bus

• extended star

• ring

• partial mesh

What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.)

• greater distances per cable run

• lower installation cost

• limited susceptibility to EMI/RFI

• durable connections

• greater bandwidth potential

What is the purpose of the OSI physical layer?

• controlling access to media

• transmitting bits across the local media

• performing error detection on received frames

• exchanging frames between nodes over physical network media

Which method of data transfer allows information to be sent and received at the same time?

• full duplex

• half duplex

• multiplex

• simplex

Which statement describes a characteristic of the frame header fields of the data link layer?

• They all include the flow control and logical connection fields

• Ethernet frame header fields contain Layer 3 source and destination addresses

• They vary depending on protocols

• They include information on user applications

Which two factors influence the method that is used for media access control? (Choose two.)

• how data is generated by end devices applications

• how the connection between nodes appears to the data link layer

• how signals are encoded by the NICs on end devices​

• how nodes share the media

• how the IP protocol forwards the packet to the destination

What method is used to manage contention-based access on a wireless network?

• CSMA/CD

• priority ordering

• CSMA/CA

• token passing

Refer to the exhibit. One end of the cable is terminated as displayed, and the other end is terminated in accordance with the T568A standard. What type of cable would be created in this manner?

• crossover

• rollover

• straight-through

• fiber-optic

A network administrator is designing a new network infrastructure that includes both wired and wireless connectivity. Under which situation would a wireless connection be recommended?

• The end-user device only has an Ethernet NIC

• The end-user device requires a dedicated connection because of performance requirements.

• The end-user device needs mobility when connecting to the network

• The end-user device area has a high concentration of RFI

What type of cable is used to connect a workstation serial port to a Cisco router console port?

• crossover

• rollover

• straight-through

• coaxial