Chapter 3

9 September 2022
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16 test answers

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question
Which of the following best describes how a switch functions?
answer
It connects multiple cable segments (or devices), and forwards frames to the appropriate segment.
question
Which of the following hardware devices regenerates a signal out all connected ports without examining the frame or packet contents? (Select two)
answer
Repeater Hub A hub and a repeater send signals out all other ports. These devices do not examine the frame or the packet contents. A switch or a bridge use the MAC address in a frame for forwarding decisions. A router uses the IP address in a packet for forwarding decisions.
question
How do switches and bridges learn where the devices are located on a network?
answer
When a frame enters a port, the source MAC address is copied from the frame header.
question
An 8-port switch receives a frame on port number 1. The frame is addressed to an unknown device. What will the switch do?
answer
Send the frame out port 2-8.
question
Which of the following devices does not segment the network?
answer
Hub
question
What device sends signal from a computer onto a network?
answer
Transceiver.
question
What type of module might a switch use to allow it to modify the media type supported by a switch port?
answer
SFP. GBIC
question
A host wants to send a message to another host with the ip address 115.99.80.157. IP does not know the hardware address of the destination device. Which protocol can be used to discover the MAC address?
answer
ARP.
question
You have a server that has a 100BaseFX network interface card that you need to connect to a switch. The switch only has 100BaseTX switch ports. Which device should you use.
answer
Media Converter.
question
At which OSI model layer does the media converter operate?
answer
Layer 1
question
Which network component connects a device with the tranmission media and allows it to send and receive messages?
answer
Network interface card.
question
Which of the following is true about the MAC address?
answer
It is a 48-bit address. It is typically represented by hexadecimal numbers.
question
Which of the following is a valid MAC address?
answer
AB.07.CF.62.16.BD
question
Which of the following statements accuretely describes how a modem works?
answer
It demodulates analog data from a telephone network into digital PC data. It modulates digital data from the PC into analog data and transmits it on a telephone network.
question
Which of the following is MAC address?
answer
C0-34-FF-15-01-8E
question
Which of the following hardware devices links multiple networks and directs traffic between networks?
answer
Router