QUESTION: 29

Smart roaming ensures that each STA can associate with the AP nearest to it. It implements load balance among APs.

TRUE
FALSE

Answer(s): A

As shown in the figure, a 12.2 m high tree is an obstacle on a 10 km point-to-point communication link. The distance between the tree and one of the antennas is 4 km. If the signal transmission frequency is 5.8 GHz, what is the minimum installation height of the receive and transmit antennas based on the following formula and the Fresnei zone radius at the 4 km point?

16 m
19 m
22 m
26 m

Answer(s): B

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QUESTION: 31

Which statements about reliability measurement are TRUE? (Multiple Choice)

Generally, system reliability is determined by mean time between failure (MTBF) and mean time to repair (MTTR).
MTBF refers to the average time (usually expressed in hours) from the fault occurrence time to the fault recovery time. A larger MTBF indicates a higher reliability.
MTTR refers to the average time from the fault occurrence time to the fault recovery time.
The formula for calculating the MTTR is as follows:
MTTR= Fault detection time + Hardware replacement time + System initialization time + Link recovery time + Route convergence time + Forwarding recovery time A smaller MTTR indicates a higher reliability.

Answer(s): A,C,D

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QUESTION: 32

A company has deployed a WLAN, and all APs are transmitting WLAN services. The company needs to upgrade AP versions. Which of the following upgrade methods is recommended to minimize the impact on user services?

Automatic AP upgrade
In-service AP upgrade
AP upgrade through the web system
AP upgrade in Boot mode

Answer(s): B

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Free H12-321 Exam Braindumps (page: 9)

QUESTION: 29

QUESTION: 30

QUESTION: 31

QUESTION: 32

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