Computer Networking
You are working with a class C network. You are required to configure it for five subnets, each of which will support 25 nodes. What subnet should you use?

255.255.255.248
255.255.255.224
255.255.255.252
255.255.255.0
255.255.255.240

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Computer Networking
Parity bit is

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

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Computer Networking
MAC is

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

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Computer Networking
What does a switch do when a frame is received on an interface and the destination hardware address is unknown or not in the filter table?

Drops the frame
Floods the network with the frame looking for the device
Sends back a message to the originating station asking for a name resolution
Forwards the switch to the first available link

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