When troubleshooting a serial link, what is the likely problem layer if an interface has an up/up status?
A) Layer 3
B) Layer 4
C) Layer 1
D) Layer 2
A
Explanation: A) When troubleshooting serial links, the following are the basic rules:
If the interface status is down/down, look to the physical layer.
If the interface status is up/down, look to the data link layer.
If the interface status is up/up, look to the network layer.
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When two integers are passed as arguments to the Substring method, it:
a) returns the characters from the first integer to the second b) returns as many characters as the second integer starting at the first integer c) returns as many characters as the first integer starting at the second integer d) generates an error
If a number is formatted with the D3 formatter, it means that:
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