WorksheetsCisco - ITN7 - Chapter 7 Review
Total questions: 15
Worksheet time: 8mins
What is the auto-MDIX feature on a switch?
Automatic configuration for 10, 100, or 1000Mbs ports
Automatic configuration for straight through or crossover cables
Automatic configuration for half or full duplex operation
Automatic configuration for IP addressing a port
What is the destination MAC address for a frame leaving PC-A for PC-B
BB:BB:BB:BB:BB:BB
AA:AA:AA:AA:AA:AA
CC:CC:CC:CC:CC:CC
DD:DD:DD:DD:DD:DD
What type of memory buffering would be best if a Layer 2 switch is switching frames from an incoming 1000Mbps port to a 100Mbps port?
port-based
shared memory
fixed configuration
speed-based
What is an example of the cut-through switching method?
store-and-forward
fast-forward
CRC
QoS
Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?
cut-through
store-and-forward
fragment-free
fast-forward
hat is the purpose of the FCS field in a frame?
to obtain the MAC address of the sending node
to verify the logical address of the sending node
to compute the CRC header for the data field
to determine if errors occurred in the transmission and reception
Which switching method has the lowest level of latency?
cut-through
store-and-forward
fragment-free
fast-forward
What would be one reason to use store-and-forward switching over cut-through switching method?
collision detection
error checking
faster frame forwarding
ability to use IPv4 or IPv6
What two items does a switch look at when a packet first arrives?
Source MAC address
Destination MAC address
Incoming port
Destination port
What does a switch use to build the MAC address table?
Source MAC
Destination MAC
Source IP
Destination IP
Which switching method may cause invalid frames to be forwarded?
Store-and-Forward
Cut-through
Keep-and-check
CRC
What will a switch do with a frame when the frame's destination MAC is in the MAC address table?
Update the MAC address table with the new destination.
Forward the frame out all ports except the one it arrived on.
Forward the frame out the specified port.
Change the destination IP address.
What will a switch do if it received a frame with the destination MAC address of FF:FF:FF:FF:FF:FF?
Forward the frame out all ports
Forward the frame out all ports except the one it came in on
Drop the frame
Send the frame to next hop router
What will a host do with a frame it receives with the destination MAC address of FF:FF:FF:FF:FF:FF?
Drop the frame
Process the frame
Reply to switch with its own MAC address
Return the frame to the switch
What will a host do with a frame it receives with a destination MAC address it does not recognize?
Drop the frame
Process the frame
Reply to switch with its own MAC address
Return the frame to the switch
