Cisco- Chap. 4

Match each type of frame field to its function: -Addressing -Error Detection -Type -Frame Start

-This field helps to direct the frame toward its destination. -This field checks if the frame has been damaged during the transfer. -This field is used by the LLC to identify the Layer 3 protocol. -This field identifies the beginning of a frame.

Which two engineering organizations define open standards and protocols that apply to the data link layer?

International Organization for Standardization (ISO) and International Telecommunication Union (ITU)

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

Light

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

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

Which two statements are true of the deterministic access method? (Choose two.)

The throughput is predictable. Devices take turns transmitting.

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

They vary depending on protocols.

An administrator measured the transfer of usable data across a 100 Mb/s physical channel over a given period of time and obtained 60 Mb/s. Which kind of measurement did the administrator obtain?

goodput

Which two factors influence the method that is used for media access control?

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

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?

straight-through

What is the purpose of the physical link control field in a data link layer header?

to establish the media link

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

to identify which network layer protocol is being used

When is a wired connection preferred to a wireless connection by an end-user device?

when the end-user device will run an application that requires a dedicated connection to the network

What is the correct color order of wire when terminating a cable by the T568B standard? Match the correct RJ-45 pin order to the wire color. (Not all options are used.) Pin 1 -> Pin 2 -> Pin 3 -> Pin 4 -> Pin 5 -> Pin 6 -> Pin 7 -> Pin 8 ->

white/orange orange white/green blue white/blue green white/brown brown