Computer Networking
Which of the following TCP/IP protocol allows an application program on one machine to send a datagram to an application program on another machine?

UDP
None of these
X.25
SMTP
VMTP

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Computer Networking
What is the problem with an interface if you type show interface serial 0 and receive the following message? "Serial0 is administratively down, line protocol is down."

No cable is attached.
The administrator has the interface shut down.
The administrator is pinging from the interface.
The keepalives are different times.

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Computer Networking
An encyclopedic database

is easy for beginners to use
None of these
All of these
is an information utility that specializes in storing and searching information
is generally free

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Computer Networking
Error rate is

None of these
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
the ratio of the number of data units in error to the total number of data units
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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