Computer Networking
A network administrator wants to upgrade the IOS of a router without removing the image currently installed. What command will display the amount of memory consumed by the current IOS image and indicate whether there is enough room available to hold both the current and new images?

show buffers
show version
show flash
show memory

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Computer Networking
A T-switch is used to

echo every character that is received
rearrange the connections between computing equipment
None of these
control how messages are passed between computers
transmit characters one at a time

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Computer Networking
ICMP (Internet Control Message Protocol) is

a protocol used to monitor computers
a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address
a TCP/IP high level protocol for transferring files from one machine to another
a protocol that handles error and control messages
None of these

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