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Hubs:


A) usually incorporate repeaters or amplifiers
B) have connection points called handles
C) limit the distance of a network to a few meters in length
D) are a difficult method to connect network cables
E) operate at the application layer

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Which of the following is not a WLAN standard?


A) 802.15
B) 802.11a
C) 802.3
D) 802.11b
E) 802.11g

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Media access control refers to:


A) the price of fiber optic cable
B) security over floppy disks in a user environment
C) the ability for a user to use multimedia equipment in a LAN
D) controlling access to a media by more than one computer in a LAN
E) the control over coax cable installed by a cable service provider

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Many organizations today are installing traditional wired Ethernet for desktop users and install Wi-Fi as ______________.


A) overlay networks
B) Bluetooth
C) cellular networks
D) mobile network
E) Ethernet networks

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Define the three modes of switch operations.

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In the context of network switches, whic...

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802.11g is backward compatible with which type of LAN?


A) 802.11a
B) 802.11b
C) 802.15
D) 802.3
E) 802.5

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A collision on a bus circuit means that two computers on that circuit have transmitted at the same time.

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Most access points (AP)deployed in wireless LANs use directional antennas.

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Which of the following is not a basic LAN component?


A) client
B) PAD
C) server
D) network interface card
E) network operating system

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Describe in detail the difference between a hub and a switch in a LAN.Draw a diagram of each,and then mark it to show some of the points that you have made in your discussion of the differences.Discuss the difference between shared Ethernet and switched Ethernet in light of your answer.

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A hub and a switch are both networking d...

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Wireless LANs are never connected to a wire network.

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Wired Equivalent Privacy requires that each user have a preconfigured key in order to communicate with an access point.

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A switch forwarding table tells a switch which port it should send out a packet to get to the destination computer.

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Breaking a network into smaller parts is called network:


A) fragmentation
B) segmentation
C) localization
D) allocation
E) mitigation

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When a switch receives a packet with a destination address that is not in its forwarding table,the switch will broadcast the packet to all of its ports.

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What are two other names for NIC cards?

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NIC cards, which stand for Network Inter...

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Topology refers to the geometric layout of the network and describes how the computers are interconnected.

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Switch-based Ethernet:


A) uses a hub to connect computers
B) has a physical topology of a ring
C) has a logical topology of a ring
D) has a logical topology of a bus
E) usually enables all attached circuits to send or receive packets simultaneously

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Which of the following is not a critical software component in a dedicated server LAN?


A) application software on server computers
B) network operating system in the dedicated server
C) network communication software on the client
D) LAN metering software
E) application software on client computers

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LANs that run on radio frequencies use a type of wired media.

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