CCNA 1 CHAPTER 4 QUIZ

transmitting bits across the local media

What is the purpose of the OSI physical layer?

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

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?

Extended Star Topology

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?

LIGHT

In fiber optic media, the signals are represented as patterns of _______

error detection

This field checks if the frame has been damaged during the transfer.

addressing

This field helps to direct the frame toward its destination.

Frame start

This field identifies the beginning of a frame.

type

This field is used by the LLC to identify the Layer 3 protocol.

STP

This type of copper media is used in industrial or similar environments where there is a lot of interference.

optical fiber

This type of media is used for high transmission speed and can also transfer data over long distances.

wireless

This type of media provides the most mobility options.

coaxial

Traditionally used for television but can now be used in a network to connect the customer location to the wiring of the customer premises.

The branch sites are connected to a central site through point-to-point links.​

What is a characteristic of a WAN hub-and-spoke topology?

greater distances per cable run limited susceptibility to EMI/RFI greater bandwidth potential

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

CSMA/CA

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

Rollover

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

to identify which network layer protocol is being used

Which is a function of the Logical Link Control (LLC) sublayer?

Full Duplex

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

It converts bits into a predefined code in order to provide a predictable pattern to help distinguish data bits from control bit

Which statement correctly describes frame encoding?

They vary depending on protocols.

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

how the connection between nodes appears to the data link layer how nodes share the media

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