ITN - Module 6 - Data Link Layer

What identifier is used at the data link layer to uniquely identify an Ethernet device?

• Port number

• MAC address

• IP address

• Sequence number

• Control number

The data link layer consists of which two sublayers (Choose two)

• Media Access Control

• Network Control

• Access Control

• Logical Link Control

• Data Control

Which duplex communication method is used in WLANs?

• Simplex

• Full-Duplex

• Half-Duplex

Which topology displays networking device layer IP addresses?

• Address topology

• Physical topology

• Aerial topology

• Logical topology

Carrier Sense Multiple Access is a media access control. What method is used in legacy Ethernet LANs?

• Collision Avoidance

• Collision Detection

• Collision Monitoring

• Collision Control

What are the three main fields common to an Ethernet frame?

• Trailer

• Data

• Control

• Delimeter

• Header

What type of WAN topology is shown in the exhibit?

• Multiple Link

• Full-Mesh

• Half-Mesh

• Multiple Point to Point

What is contained in the trailer of the Data-Link Layer?

• Physical address

• MAC address

• Data

• Logical address

• Error Detection

What are two services performed by the data link layer of the OSI model? (Choose two.)

• Determines the path to forward packets

• Monitors Layer 2 communication buy building a MAC address table

• Fragments data packets into the MTU size

• Provides media access control and performs error detection

• Accepts Layer 3 packets and encapsulates them into frames

Which of the following are data link layer protocols? (Choose three)

• TCP

• IP

• 802.11

• 802.3

• PPP