Computer Networking
You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?

copy run start
reload
replace run start
copy start run

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Computer Networking
Error detecting code is

an error-detecting code based on a summation operation performed on the bits to be checked
None of these
a check bit appended to an array of binary digits to make the sum of all the binary digits.
a code in which each expression conforms to specify rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
the ratio of the data units in error to the total number of data units

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Computer Networking
MAC is

network access standard for connecting stations to a circuit-switched network
a very common bit-oriented data link protocol issued to ISO.
None of these
a method access control technique or multiple-access transmission media
a method of determining which device has access to the transmission medium at any time

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Computer Networking
A network administrator is connecting hosts A and B directly through their Ethernet interfaces, as shown in the illustration. Ping attempts between the hosts are unsuccessful. What can be done to provide connectivity between the hosts?1. A crossover cable should be used in place of the straight-through cable.2. A rollover cable should be used in place of the straight-through cable.3. The subnet masks should be set to 255.255.255.192.4. A default gateway needs to be set on each host.5. The subnet masks should be set to 255.255.255.0.

2 only
3 and 4 only
1 only
1 and 5 only
2 and 5 only

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