Which of the following best describes how a switch functions? |
It connects multiple cable segments (or devices), and forwards frames to the appropriate segment. |
Which network component connects a device with the transmission media and allows it to send and receive messages? |
Network interface card (NIC) |
Which of the following LAN devices receives a signal on one port, and forwards that signal only to the port where the destination device is connected? |
Switch |
Which of the following statements accurately describes how a modem works? |
1. It demodulates analog data from a telephone network into digital PC data. 2. It modulates digital data from the PC into analog data and transmits it on a telephone network. |
An 8-port switch receives a frame on port number 1. The frame is addressed to an unknown device. What will the switch do? |
Send the frame out ports 2-8. |
Which of the following is a valid MAC address? |
C0-34-FF-15-01-8E |
How do switches and bridges learn where devices are located on a network? |
When a frame enters a port, the source MAC address is copied from the frame header. |
Which of the following hardware devices regenerates a signal out all connected ports without examining the frame or packet contents? |
Hub |
A host wants to send a message to another host with IP address 115.99.80.157. IP doesn’t know the hardware address of the destination device. Which protocol can be used to discover the MAC address? |
ARP |
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