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648-247 Questions and Answers

Question # 6

A gateway is reporting unstable or flapping connectivity. INPUT 1 is rapidly flapping between "up" and "down." What is the most likely cause?

A.

The input is configured as supervised, when it should be unsupervised.

B.

The wires are dirty or improperly seated in the termination block.

C.

The gateway is defective and should be RMA.

D.

The input on the gateway is configured as supervised, and the wires could be dirty or improperly seated in the termination block.

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Question # 7

Refer to the exhibit.

In the event of a loss of connectivity from the Cisco Access Gateway to the expansion modules on the CAN bus, with DC power still connected, what will happen if an access card was presented to a card reader that is connected to one of the Reader Modules?

A.

Reader Module will first try to authenticate the user by attempting to contact the Cisco Access Gateway. Because connectivity is lost, Reader Module will not be able to authenticate, and no access will be granted.

B.

Reader Module will first try to authenticate the user by attempting to contact the Cisco Access Gateway. Because connectivity is lost, Reader Module will fall back to its locally cached credentials and grant access if the card is valid.

C.

Reader Module will first try to authenticate the user using its locally cached credentials. If the credentials are in the local database, access will be granted. If the credentials are not present, Reader Module will attempt to contact the Cisco Access Gateway, time out, and deny access to the user.

D.

Reader Module will sound an audible alarm.

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