ISM 673 - Chapter 4

Early implementation of Ethernet used coaxial cable.
True False

What was the original transmission speed of Ethernet under the 802.3 standard?

A) 2.94 Mbps
B) 100 Mbps
C) 4.77 Mbps
D) 10 Mbps

Which device only extends the max distance between 2 Ethernet nodes (no other services)?

A) switch
B) repeater
C) bridge
D) router

Which is the typical location where campus or interbuilding backbone cabling is terminated?

A) intermediate distr. frame
B) roof top of building
C) Main distribution frame
D) wiring closet

What node identification does Layer 2 switch use to forward frames to the correct destination?

A) MAC address
B) Node ID
C) Protocol ID
D) network address

Which technique allows you to aggregate network links into a larger bandwidth pipe?

A) store & forward
B) Trunking
C) cut-through
D) aggregation

The original Ethernet used token to avoid collisions.
True False

Which transmission media has the highest bandwidth capability and highest transmission speed?

A) category 6/6a UTP cabling
B) Category 8 UTP cabling
C) Single-mode fiber optic cabling
D) Coaxial transmission cabling

Which simple action does CSMA/CD require to avoid transmitting on a busy channel?

A) listen to the echo
B) wait for a random amount of time
C) Listen for a clear channel
D) wait for a token

An aggregation of edge networks is called a ____________ network.

What is the best reason to create a workgroup LAN?

A) hierarchial topologies provide the best performance
B) workgroups are small and require less cabling
C) Majority of workgroup traffic stays within the workgroup
D) most switches can't handle more ports than the average group size

What was the most common topology used in early Ethernet networks using coaxial cable?

A) Bus
B) tree
C) ring
D) star

Real-time application benefits from the higher performance of which type of network devices?

A) Layer 4 statefull firewall
B) layer 1 hub
C) Layer 2 switch
D) Layer 3 router