Networking Components: Network Interface Cards, Hubs, MAUs and Repeaters, Bridges and switches, Routers and Brouters, gateways and security devices and other network devices

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What does a network interface card add to a computer’s functionality?

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Explanation

A network card provides the capability to communicate with other computers across a network medium such as a CAT 5 cable. The network card connects to the cable using a transceiver, which is responsible for sending and receiving the electrical signals on

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If a card has the capability to connect to more than one kind of medium, you might have to set which of the following in order to ensure connectivity?

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Explanation

The transceiver-type setting is required for network adapters that are capable of attaching to more than one media type. Typical cards of this nature include Ethernet cards that have both twisted-pair and coaxial connectors. This is one of the more common

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When troubleshooting to find out why a network card will not connect to the network, which of the following would you check first?

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Explanation

When troubleshooting any kind of problem, you want to check the easy stuff first. When it comes to network cards, the first thing you want to check is the link light on the back of the computer to verify that there is an actual connection to the network

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Which of the following is an example of a layer-2 address?

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Explanation

A layer-2 address is a MAC address and looks like 00-0D-60-48-53-9E.

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What is an AUI connector?

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Explanation

An AUI connector is a 15-pin D female connector that looks very much like a joystick port. With an external transceiver, the actual media connection is made external to the NIC using a small device that attaches via an extension cable. These types of conn

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Which of the following types of hubs does not regenerate the signal and therefore is not a repeater?

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Explanation

The function of a passive hub is simply to receive data from one port of the hub and send it out to the other ports. For example, an eight-port hub receives data from port 3 and then resends that data to ports 1, 2, 4, 5, 6, 7, and 8. It is as simple as t

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Which network component is used to extend the distance the signal can travel by regenerating the signal?

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Explanation

Repeaters can be used to extend the length of the maximum distance of the different types of cables because when a signal reaches a repeater, the repeater regenerates the signal.

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Which type of hub enables more than one type of cable or medium to connect to it?

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Explanation

A hybrid hub is one that can use many types of cables. A popular example of a hybrid hub is a hub that has connectors for thinnet and twisted-pair cabling.

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Which network device is used to connect systems together in a Token Ring environment?

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Explanation

A multistation access unit (MAU) is a hub-type device in Token Ring environments. Remember that the MAUs are connected together by a ring-in/ring-out feature.

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When data is sent to a system on a hub, the data is sent to which port(s) on the hub?

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Explanation

Remember that with hubs, when a data signal reaches the hub, the hub sends the signal throughout the entire network bus, which includes ports on that hub and any linked hubs. Hubs perform no filtering of traffic, which is what a switch offers!

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Which type of network component enables each device to have the full bandwidth of the medium when transmitting?

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Explanation

Switching is a fairly involved process that allows the device to have the full bandwidth when transmitting.

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When data is sent to a known system on a switch, the data is sent to what port(s)?

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Explanation

A switch is different from a hub in the sense that with a switch, the data is sent only to the port that hosts the destination system. This minimizes network traffic and increases throughput on the network.

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Which layer of the OSI model does a bridge run at?

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Explanation

Because a bridge works with MAC addresses, it is considered a layer-2 device.

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Which networking feature allows you to group ports on a switch to create a broadcast domain?

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Explanation

A VLAN is a way to group ports on a switch so that each grouping is its own virtual network. Systems can communicate only with other systems on their own VLAN, which includes broadcast traffic. If a system sends broadcast traffic on the wire, it will be s

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Which layer of the OSI model does a router run at?

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Explanation

A router runs at layer 3 of the OSI model.

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