Week 2 Recap

Which of these is NOT a function of the Data Link Layer?

• Media Access Control

• Error Detection

• Interface with the Network Layer

• Encoding

The _____ is the virtual arrangement of the nodes independent of their physical connectivity

• Logical Topology

• Physical Topology

• Shared Media

• Virtual Topology

The Physical Topology determines the type of Media Access Control that we need

• True

• False

CSMA/CD and CSMA/CA are two...

• Layer 2 Addressing Schemes

• Controlled Access Mechanisms

• Encoding Algorithms

• Contention Based Access Mechanisms

All types of Layer 2 frames include Addressing fields

• True

• False

A _____ link can be used to simultaneously send and receive data

• Radio Wave

• Full Duplex

• Half Duplex

• Gigabit Ethernet

Which of these define Layer 1 and Layer 2 characteristics for shared media networks?

• Ethernet Protocols

• Internet Protocols

• CSMA/CD

• TCP/IP

802.3 protocols define the MAC sublayer and the Physical Layer

• True

• False

When using CSMA/CD and a collision is detected, devices will stop sending data and...

• Start the backoff timer

• Send a jamming signal

• Disconnect from the network

• Send a Request-to-Send

When using CSMA/CA, if the media is idle and a device has data to send...

• The device will send a Request-to-Send

• The device will send the data

• The device will backoff for a random time

• The device will wait for a token