Podcast
Questions and Answers
Which of the following best describes how a switch functions?
Which of the following best describes how a switch functions?
- It connects devices at different locations.
- It connects multiple cable segments and forwards frames to the appropriate segment. (correct)
- It filters incoming packets based on IP addresses.
- It simply repeats all signals to all devices.
Which of the following hardware devices regenerates a signal out all connected ports without examining the frame or packet contents? (Select two)
Which of the following hardware devices regenerates a signal out all connected ports without examining the frame or packet contents? (Select two)
- Switch
- Router
- Repeater (correct)
- Hub (correct)
How do switches and bridges learn where the devices are located on a network?
How do switches and bridges learn where the devices are located on a network?
When a frame enters a port, the source MAC address is copied from the frame header.
An 8-port switch receives a frame on port number 1. The frame is addressed to an unknown device. What will the switch do?
An 8-port switch receives a frame on port number 1. The frame is addressed to an unknown device. What will the switch do?
Which of the following devices does not segment the network?
Which of the following devices does not segment the network?
What device sends a signal from a computer onto a network?
What device sends a signal from a computer onto a network?
What type of module might a switch use to allow it to modify the media type supported by a switch port?
What type of module might a switch use to allow it to modify the media type supported by a switch port?
Which protocol can be used to discover the MAC address of a device when only the IP address is known?
Which protocol can be used to discover the MAC address of a device when only the IP address is known?
Which device should you use to connect a server with a 100BaseFX network interface card to a switch that only has 100BaseTX switch ports?
Which device should you use to connect a server with a 100BaseFX network interface card to a switch that only has 100BaseTX switch ports?
At which OSI model layer does the media converter operate?
At which OSI model layer does the media converter operate?
Which network component connects a device with the transmission media and allows it to send and receive messages?
Which network component connects a device with the transmission media and allows it to send and receive messages?
Which of the following is true about the MAC address?
Which of the following is true about the MAC address?
Which of the following is a valid MAC address?
Which of the following is a valid MAC address?
Which of the following statements accurately describes how a modem works?
Which of the following statements accurately describes how a modem works?
Which of the following is a MAC address?
Which of the following is a MAC address?
Which of the following hardware devices links multiple networks and directs traffic between them?
Which of the following hardware devices links multiple networks and directs traffic between them?
Flashcards
Switch Function
Switch Function
A switch forwards network frames to the correct device based on MAC addresses.
Signal Regeneration (Hub)
Signal Regeneration (Hub)
Hubs repeat signals to all connected devices without checking the data.
Switch Learning
Switch Learning
Switches learn device locations by recording MAC addresses.
8-Port Switch Frame Handling
8-Port Switch Frame Handling
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Network Segmentation (Hubs)
Network Segmentation (Hubs)
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Transceiver Function
Transceiver Function
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Media Type Change
Media Type Change
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ARP Function
ARP Function
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Media Converter Function
Media Converter Function
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Media Converter Layer
Media Converter Layer
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Network Interface Card (NIC)
Network Interface Card (NIC)
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MAC Address Definition
MAC Address Definition
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Valid MAC Address Example
Valid MAC Address Example
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Modem Function
Modem Function
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Router Function
Router Function
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Study Notes
Switch Functionality
- A switch connects multiple cable segments or devices and forwards frames to the appropriate segment based on MAC addresses.
Signal Regeneration
- Repeater and hub devices regenerate signals and send them out all connected ports without examining packet contents.
Learning Devices Location
- Switches and bridges learn device locations by copying the source MAC address from frame headers upon receiving frames.
Frame Handling
- An 8-port switch sends frames addressed to unknown devices out of all other ports except the one it was received on.
Network Segmentation
- Hubs do not segment the network, functioning instead as a simple connector for devices.
Signal Sending Device
- A transceiver is the device that sends signals from a computer onto a network.
Media Type Modification
- Switches can use Small Form-factor Pluggable (SFP) or Gigabit Interface Converters (GBIC) modules to change media types on switch ports.
MAC Address Discovery
- Address Resolution Protocol (ARP) is utilized to discover the MAC address of a destination device when the IP is known but the hardware address is not.
Connecting Different Media Types
- A media converter is necessary to connect a server with a 100BaseFX network interface card to a switch that only has 100BaseTX ports.
OSI Model Layer for Converters
- Media converters operate at Layer 1 of the OSI model.
Network Interface Card Role
- A network interface card connects a device to transmission media, enabling data sending and receiving.
MAC Address Characteristics
- A MAC address is a 48-bit unique identifier typically represented in hexadecimal format.
Valid MAC Address Example
- An example of a valid MAC address is AB.07.CF.62.16.BD.
Modem Functionality
- Modems modulate digital data from PCs into analog for transmission over telephone networks and demodulate incoming analog signals back into digital data.
Additional MAC Address Example
- Another example of a MAC address is C0-34-FF-15-01-8E.
Router Functionality
- Routers link multiple networks together and manage traffic direction between them.
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