ITN 7.0 Module 4-7 Review

What two devices commonly affect wireless networks?

• Blu-ray players

• home theaters

• Cordless phones

• incandescent light bulbs

In addition to the cable length, what two factors could interfere with the communication carried over UTP cables?

• Frame check sequence

• minimum frame size

• Crosstalk

• Electromagnetic interference

What are three ways that media access control is used in networking?

• Enables IPv4 and IPv6 to utilize the same network interface and media.

• Places information in the frame that identifies which network layer protocol is being used for the frame.

• Adds Layer 2 control information to network protocol data.

• Ethernet utilizes CSMA/CD.

What are two examples of the cut-through switching method?

• Crosstalk

• electromagnetic interference

• Frame error checking

• It is not affected by emi or rfi. it is more expensive than utp cabling is.

Which two statements describe features or functions of the logical link control sublayer in Ethernet standards?

• Ethernet utilizes CSMA/CD.

• Frame Check Sequence

• Media access control provides placement of data frames onto the media.

• Data link layer protocols define the rules for access to different media.

• Frame error checking

A network administrator is measuring the transfer of bits across the company backbone for a mission critical financial application. The administrator notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput?

• The amount of traffic that is currently crossing the network

• The switch forwards it out all ports except the ingress port.

• The type of traffic that is crossing the network.

• partial mesh

• The latency that is created by the number of network devices that the data is crossing

What are two actions performed by a Cisco switch?

• Ethernet utilizes CSMA/CD.

• The automatic configuration of an interface for a straight-through or a crossover Ethernet cable connection

• Utilizing the MAC address table to forward frames via the destination MAC address

• Media access control provides placement of data frames onto the media.

• Using the source MAC addresses of frames to build and maintain a MAC address table

What functions are performed at the MAC sublayer of the OSI data link layer?

• Places information in the frame that identifies which network layer protocol is being used for the frame.

• Provides a mechanism to allow multiple devices to communicate over a shared medium.

• Greater distances per cable run

• It manages the access of frames to the network media.

• It packages various Layer 3 PDUs into a frame format that is compatible with the network interface.

Statements that describe the services provided by the data link layer

• Greater distances per cable run

• It enables a device to automatically configure an interface to use a straight-through or a crossover cable.

• It manages the access of frames to the network media.

• Limited susceptibility to EMI/RFI

• It packages various Layer 3 PDUs into a frame format that is compatible with the network interface.

A network administrator is connecting two modern switches using a straight-through cable. The switches are new and have never been configured. Which three statements are correct about the final result of the connection?

• The amount of traffic that is currently crossing the network

• The auto-MDIX feature will configure the interfaces eliminating the need for a crossover cable.

• The link between switches will work as full-duplex.

• The type of traffic that is crossing the network.

• The link between the switches will work at the fastest speed that is supported by both switches.