Download Implementing Cisco Wireless Network Fundamentals.examlabs.200-355.2019-10-01.1e.338q.vcex

In the current RF environment, the noise floor is -95 dBm. A tablet needs an SNR of 25 dB to transmit at the required speed. What must the RSSI cell edge be to meet the required SNR?

• A: -120 dBm
• B: -90 dBm
• C: -70 dBm
• D: -60 dBm
• E: -50 dBm

Correct Answer: C

Which two principles must be considered when deploying a wireless network through a wooded area? (Choose two.)

• A: absorption
• B: reflection
• C: diffraction
• D: scattering
• E: refraction

Correct Answer: AD

A network engineer notices that two mesh APs are having problems communicating. After reviewing the current radio configurations, it is noted that one AP is transmitting at 3 mW while the other is transmitting at 60 mW. How many decibels would the 3-mW AP need its power increased to match the 60-mW AP?

• A: 8
• B: 12
• C: 13
• D: 20
• E: 57

Correct Answer: C

An engineer needs an AP with at least two spatial streams, four receivers, and three transmitters. Which device meets these requirements?

• A: 2x4:3
• B: 2x3:4
• C: 4x3:2
• D: 3x4:2

Correct Answer: D

The new tablets for the sales department require an SNR of 18 or more to operate. Given a noise floor of -88 dBm, what is the minimum RSSI that is needed?

• A: -60 dBm
• B: -70 dBm
• C: -72 dBm
• D: -80 dBm
• E: -96 dBm
• F: -106 dBm

Correct Answer: B

Refer to the exhibit. 

• A: -118
• B: -28
• C: -20
• D: 20
• E: 28
• F: 118

Correct Answer: E

When reading a radiation pattern for an antenna, at which two drops in signal and power is the beam width measured? (Choose two.)

• A: 3 dB
• B: 6 dB
• C: 9 dB
• D: 10 dB
• E: 1/2 power
• F: 1/4 power
• G: 1/8 power
• H: 1/10 power

Correct Answer: AE

When calculating the link budget for a wireless point-to-point bridge, the engineer notices that one antenna has its gain marked as 2.85 dBd. With a 20-mW access point and 3-dBi loss for the cable, what is the approximate EIRP?

• A: 15 dBm
• B: 18 dBm
• C: 22 dBm
• D: 25 dBm

Correct Answer: A

Due to the terrain, a deployment requires a point-to-point wireless bridge to allow for network connectivity to a remote building. What 5GHz band would permitted to use the highest power in the U.S.?

• A: U-NII-3
• B: U-NII-2 Extended
• C: U-NII-2
• D: U-NII-1

Correct Answer: A

A wireless engineer is designing a network for the London branch of a company. Which 5-GHz band allows the branch to use the highest EIRP?

• A: 2.4-GHz ISM
• B: UNII-1
• C: UNII-2
• D: UNII-2 Extended

Correct Answer: D