Computer Hardware
ISDN stands for:

integrated services digital network
inferior sector data net
internal select data nulls
interval set down next
interior sector direct none

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Computer Hardware
Suppose that you have a the maintenance package identifies several possible field replaceable units (FRUs) that will resolve the problem. What should you do after turning the power off?

None of these
Follow the same procedure as in ays replace the system board first if it is on the list of possible FRUs If multiple FRUs are indicated, then software is the most likely source of the problem
Replace the indicated parts, one at a time in the recommended sequence, until the problem is resolved; return unused FRUs to stock
Replace all of the indicated FRUs at once and return the machine to the customer if the problem is resolved

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Computer Hardware
ESD damage can be caused by:

Placing an IC in a non-conductive plastic bag
Repeated sags in current supplied from outlets
None of these
Touching metal on the chasis
Placing an IC on a grounded mat

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