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The name assigned to a wireless network is called the SSID.

A) True
B) False

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What does a router keep in its routing table?

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A router keeps information abo...

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What are the key differences between a switch and a router?

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The following points summarize the key p...

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Which of the following are features of a router? (Choose all that apply)


A) connects computers to the LAN
B) connects LANs to one another
C) works with MAC addresses
D) forwards broadcast packets
E) works with packets

F) A) and B)
G) B) and D)

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What are the major differences between a hub and a switch?

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The major difference is that switches are intelligent. They examine each frame that they receive for the destination MAC address and then send the frame out the correct port for that address. A hub simply accepts a frame from one of its ports and then sends it out all ports. A switch also keeps a table of MAC addresses so that it knows where to send a frame. Because a switch can control where it sends a frame, devices that are connected to a switch can communicate at the same time, allowing each device to access the full network bandwidth. With a hub, only one device can transmit at a time so the bandwidth is shared among all connected devices. Also, because a switch controls the flow of frames, there is little chance of a collision. In a hub, collisions might occur frequently when under heavy use.

Match each item with a statement below. a.switch b.default route c.half-duplex mode d.router e.bandwidth sharing f.repeater g.CTS h.network interface card i.uplink port j.network bandwidth -communication in which a device can send and receive signals but not at the same time

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Match each item with a statement below. a.switch b.default route c.half-duplex mode d.router e.bandwidth sharing f.repeater g.CTS h.network interface card i.uplink port j.network bandwidth -indicates that the wireless computer can transmit data

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g

What type of frame is addressed to a specific computer?


A) broadcast
B) unicast
C) multicast
D) anycast

E) A) and B)
F) B) and D)

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What is a default gateway?

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A computer on a LAN can communicate with...

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How does a switch "learn" MAC addresses?


A) All the MAC addresses must be entered manually.
B) The switch comes loaded with the most frequently used addresses.
C) It reads the source address and keeps a record of which port the sending computer is on.
D) The switch uses a mathematical formula to determine what the MAC address would be for each computer connected to it.

E) B) and C)
F) A) and D)

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What does a switch do if it doesn't find the destination MAC address in its switching table?


A) sends an error to the sending device
B) discards the frame
C) sends an ARP to learn the MAC address
D) forwards the frame out all ports

E) All of the above
F) A) and C)

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What command issued from the command prompt will show the route that a packet travels from the issuing computer to another computer?


A) route
B) tracert
C) ipconfig
D) arp

E) A) and C)
F) None of the above

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Which of the following is true about hubs?


A) Devices on a hub have to share the available bandwidth.
B) They can operate in full-duplex and half-duplex mode.
C) They maintain a table of MAC addresses.
D) They can handle several computer conversations simultaneously.

E) A) and B)
F) B) and C)

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What are broadcast frames and how are they handled by switches and routers?

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A broadcast frame is a frame that has a ...

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A __________ frame is a message that is intended to be processed by all devices on the LAN.

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broadcast

Match each item with a statement below. a.switch b.default route c.half-duplex mode d.router e.bandwidth sharing f.repeater g.CTS h.network interface card i.uplink port j.network bandwidth -device that connects LANs

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Which device receives a frame and reads the source and destination MAC addresses before forwarding the frame out another port?


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

E) A) and B)
F) A) and C)

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What does a switch store in its switching table?


A) The frame's source MAC address and the port it was received on.
B) The frame's destination MAC address and the port it was received on.
C) The frame's source IP address and the port it was received on.
D) The frame's destination IP address and the port it was received on.

E) B) and D)
F) A) and B)

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Match each item with a statement below. a.switch b.default route c.half-duplex mode d.router e.bandwidth sharing f.repeater g.CTS h.network interface card i.uplink port j.network bandwidth -routing table entry that tells a router where to send a packet with a destination network address that can't be found in the routing table

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Match each item with a statement below. a.switch b.default route c.half-duplex mode d.router e.bandwidth sharing f.repeater g.CTS h.network interface card i.uplink port j.network bandwidth -device that connects a computer with the network medium

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