Test
Chapter 9 Networking
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Preguntas del test (15)
1Name the two data link sublayers, and list their purpose
- ALCL-Logical Link Control
- BMAC: Data encapsulation, media access control, addressing
- CAll the above
2Which of the following describes a limitation of legacy Ethernet technologies?
- AA. Poor scalability
- BB. Expensive media
- CC. No collisions
- DD. Frame Format incompatible with current Ethernet
3Which field of an Ethernet frame is used for error detection?
- AA. Type
- BB. Preamble
- CC. Frame Check Sequence
- DD. Destination MAC Address
4How many bits are in an Ethernet MAC address?
- AA. 12
- BB. 32
- CC. 48
- DD. 256
5Why are Layer 2 MAC addresses necessary?
- AAn Ethernet MAC address is used to transport the frame across the local media
- BSee above
6Which of the following addresses is used as a destination address for an Ethernet broadcast frame?
- A0.0.0.0
- B255.255.255.255
- CFF-FF-FF-FF-FF-FF
- D0C-FA-94-24-EF-00
7What is the purpose of the jam signal in CSMA/CD?
- AA. To allow the media to recover
- BB. To make sure that all sending nodes see the collision
- CC. To notify other nodes that a node is about to send
- DD. To identify the length of a frame
8Describe an Ethernet collision domain.
- AThe group of connected devices that can cause collisions to occur with each other is known as a collision domain. Collision domains occur at Layer 1 of the networking reference model
- BSee above
9What Ethernet characteristic is shared by historic Ethernet and legacy Ethernet?
- ASame cable type
- BSame segment lengths
- CSame logical topology
- DSame installation cost
10Which of the following describes a connection to a switch port?
- AIsolates broadcasts
- BIs a separate collision domain
- CUses the MAC address of the switch port as the destination
- DRegenerates every bit that arrives out every port on the switch
11What is the stage of operation of an Ethernet switch that creates MAC table entries?
- AAging
- BFiltering
- CFlooding
- DLearning
12If a frame arrives at a switch that contains a source MAC address that is not listed in the MAC table, what process will occur?
- AAging
- BFiltering
- CFlooding
- DLearning
13When does a network host need to broadcast an ARP request?
- AWhen a host has a packet to send to an IP address that does not have a map in the ARP cache.
- BSee above
14If a frame arrives at a switch that contains a destination MAC address that is not listed in the MAC table, what process will occur?
- AAging
- BFiltering
- CFlooding
- DLearning
15Why are higher-speed Ethernet implementations more susceptible to noise?
- AMore collisions
- BShorter bit times
- CFull-duplex operation
- DUTP cables are required instead of fiber
Información
- Descripción
- Computer Networking Test sobre Chapter 9 Networking, creado por Tyler Simmons el 08/11/2017.
- Autor
- Tyler Simmons
- Idioma
- English
- Visitas
- 6
- Etiquetas
- Valoración
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