Which of the following statements about antenna classification is correct ()? (Select 2 Answers)

Classified by directivity: omnidirectional antenna, directional antenna, etc.

Classified by shape: linear antenna, planar antenna, etc.

Classified by directivity: omnidirectional antenna, directional antenna, etc.

Classified by shape: linear antenna, planar antenna, etc.

Classified by purpose: short wave antenna, ultra short wave antenna, microwave antenna, etc.

Classified by working frequency band: communication antenna, TV antenna, radar antenna, etc.

Which of the following descriptions of power splitters and couplers are correct is ().

The power divider is equal power distribution, and the coupler is unequal power distribution

Power divider and coupler are equal power distribution

The power divider is equal power distribution, and the coupler is unequal power distribution

The power divider is unequal power distribution, and the coupler is equal power distribution

Power divider and coupler are unequal power distribution

WLAN The commonly used radio frequency cables in the system are (). (Select 3 Answers)

1/2 ''(Inch) Super flexible feeder

Which of the following statements about antenna gain are true?

When selecting the antenna gain, ensure that the beam matches the coverage area. If the coverage distance is small, select low-gain antennas with wide vertical lobes to ensure the coverage effect in the area near the antenna.

An antenna's gain quantitatively measures the degree of input power an antenna can radiate in a given direction.

Antennas are passive components, and they do not amplify electromagnetic signals.

When selecting the antenna gain, ensure that the beam matches the coverage area. If the coverage distance is small, select low-gain antennas with wide vertical lobes to ensure the coverage effect in the area near the antenna.

An antenna's gain quantitatively measures the degree of input power an antenna can radiate in a given direction.

An antenna's gain measures its ability to transmit and receive signals in a specific direction. It is irrelevant to the antenna model.

Antennas are passive components, and they do not amplify electromagnetic signals.

Which of the following factors need to be taken into account when selecting a device in WLAN planning?

Maximum transmit power (combined power)

Which of the following statements is true about the coverage distance design principles of a single AP (20 dBm)?

In an open area, the coverage distance is designed based on the AP's coverage capability.

It is recommended that a 5.8 GHz AP be deployed for through-wall signal coverage.

In the same scenario, the coverage distance of a 2.4 GHz AP is smaller than that of a 5.8 GHz AP.

Inter-floor coverage is supported.

In an open area, the coverage distance is designed based on the AP's coverage capability.

The following figure shows the hardware structure of an AirEngine 5760-51. Which of the following statements is true?

2: Port that receives PoE power

Which of the following statements about Layer 2 and Layer 3 roaming are true?

Layer 3 roaming indicates that STAs roam between different subnets.

Layer 2 roaming indicates that STAs roam within the same subnet.

Layer 2 roaming can be determined as long as the VLAN IDs before and after roaming are the same.

Layer 3 roaming indicates that STAs roam between different subnets.

Layer 2 roaming indicates that STAs roam within the same subnet.

Layer 2 roaming can be determined as long as the VLAN IDs before and after roaming are the same.

After Layer 3 roaming is performed, the VLAN IDs in the service sets of APs must be the same.

Which of the following statements about WLAN roaming are false?

During roaming, the STA sends an Association Request frame containing home AP information to the foreign AP.

APs with which a STA is associated before and after roaming must work on the same channel.

APs with which a STA is associated before and after roaming can work on different channels.

During roaming, the STA sends an Association Request frame containing home AP information to the foreign AP.

APs with which a STA is associated before and after roaming must work on the same channel.

During roaming, the STA sends a Reassociation Request frame containing home AP information to the foreign AP.

Huawei H12-311_V3.0 Practice Test 9 - Free Online Exam Prep & Questions

What is the initialization state of an AP before the AP establishes a link with an AC for the first time?

Become a Premium Member for full access

Unlock Premium Member

Huawei H12-311_V3.0 Practice Test 9

Question

Huawei H12-311_V3.0 Practice Tests

Practice Tests