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data link header
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∙ 12y ago
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What three items are contained in a Ethernet header and trailer?
destination mac addresssource mac address CRC - FCS
Which field are contained within an IEEE Ethernet frame header?
1)Source and destination MAC Address 2)FCS Field
Why does destination mac address come before source mac address in an ethernet frame?
The destination MAC is before the source one for easier scanning, mostly because it is the destination device that is important as that is the device we are trying to reach.
What layer of the ois model adds source and destination MAC address to frames?
in the osi model data link layer is adds source & destination mac address to frames
How do packets get to the right computer?
Each packet carries the address of the intended recipient. Each computer has a unique address. It works rather like the postal system.
How does a cisco router recognize its own traffic?
Source or Destination MAC address
What device is used to move frames between a source and a destination on a MAC address?
switch
Which field in an IPv4 packet header will typically stay the same during its transmission?
Destination Address (I.P. ) will stay the same during transmission. But be careful! Only if it is Ip address. However if it is MAC it will change as it travels thru diferent routers with different MAC addresses to get to the destination Ip address (which does not change)!
When an IPv6 enabled host needs to discover the mac address of an intended ipv6 destination which destination address is used by the source host in the ns message?
solicited-node multicast address
Which two statements describe the operation of an access layer ethernet switch choose two?
The source MAC address within a frame is used by the switch to associate a port with that MAC address. Frames are directed by the switch from one port to another based on the destination MAC address within the frame.
How an Ethernet switch sends a frame out a single port to a receiver?
The switch learns the MAC address of the device connected to a port during port initialization. It will then send data out the port based upon the destination MAC address as specified the the packet header.
Which type of address is use in an ethernet frame header?
mac address only
