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
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.

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Computer Networking
What is route poisoning?

It prevents regular update messages from reinstating a route that has just come up.
It is information received from a router that can't be sent back to the originating router.
It describes when a router sets the metric for a downed link to infinity.
It sends back the protocol received from a router as a poison pill, which stops the regular updates.

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Computer Networking
Which of the following is true when describing a unique local address?

Packets addressed to a unicast address are delivered to a single interface.
These are like private addresses in IPv4 in that they are not meant to be routed.
These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.
These are your typical publicly routable addresses, just like a regular publicly routable address in IPv4.

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Computer Networking
Network 206.143.5.0 was assigned to the Acme Company to connect to its ISP. The administrator of Acme would like to configure one router with the commands to access the Internet. Which commands could be configured on the Gateway router to allow Internet access to the entire network?1. Gateway (config) # ip route 0.0.0.0 0.0.0.0 206.143.5.22. Gateway (config) # router rip3. Gateway (config-router) # network 206.143.5.04. Gateway (config-router) # network 206.143.5.0 default

3 only
1 only
1 and 4
1, 2 and 4

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