CIST 1401 Section 3.1-3.3 PQ

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Which network component connects a device to transmission media and allows the device to send and receive messages?
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Terms in this set (29)
Which of the following best describes how a switch functions?It connects multiple cable segments (or devices) and forwards frames to the appropriate segment.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.An eight-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 two through eight.Which of the following devices does not segment the network?HubWhich of the following hardware devices regenerates a signal out all connected ports without examining the frame or packet contents? (Select two.)Hub & RepeaterAt which OSI layer does a router operate to forward network messages?NetworkYour company purchases a new bridge that filters packets based on the MAC address of the destination computer. On which layer of the OSI model is this device functioning?Data LinkAt which of the following OSI layers does a router operate?Layer 3Which of the following devices operate at the Data Link layer of the OSI model? (Select three.)Bridges, switches, and NICsWhich of the following devices operate at OSI model Layer 2? (Select two.)Network interface card and switchA switch is associated with which OSI model layer?Data LinkAt which layer of the OSI model do hubs operate?PhysicalWhich of the following devices operates at the OSI model Layer 2?SwitchWhich of the following devices operates at the OSI model Layer 1?HubWhich of the following hardware devices links multiple networks and directs traffic between networks?RouterYou are the network administrator for a small organization. Recently, you contracted with an ISP to connect your organization's network to the internet to provide users with internet access. Since doing so, it has come to your attention that an intruder has invaded your network from the internet on three separate occasions. What type of network hardware should you implement to prevent this from happening again?FirewallWhich of the following is the best device to deploy if you want to protect your private network from a public untrusted network?FirewallWhich of the following is a good reason to install a firewall?To prevent hackers from accessing your network.You are the administrator of your company's network. You want to prevent unauthorized access to your intranet from the internet. Which of the following should you implement?Firewall