A site survey reveals that a Wi-Fi network on channel 6 is experiencing high retry rates. The survey also detects a strong signal from a neighboring AP on channel 6 and a weaker signal from an AP on channel 5. Which type of interference is most likely causing the retries?

Co-channel interference from the AP on channel 6

Multipath interference from reflections in the building

Adjacent-channel interference from the AP on channel 5

Non-Wi-Fi interference from a microwave oven

A manufacturing facility has a large open floor with metal machinery and moving robotic arms. A site survey shows that a client receives a strong signal but experiences frequent data rate drops. The engineer suspects multipath. Which combination of factors is most likely causing the issue?

Reflection off metal surfaces and movement of robotic arms

Scattering from rough surfaces and low transmit power

Co-channel interference and high noise floor

Diffraction around machinery and absorption by the floor

A stadium is deploying Wi-Fi 6E APs for a large event. The network team must minimize co-channel interference while supporting high client density. They have access to the 6 GHz band and can use 20, 40, 80, or 160 MHz channels. Which channel width and channel plan provides the best balance of throughput and interference avoidance?

Use 80 MHz channels with a non-overlapping channel plan

Use 20 MHz channels to maximize the number of non-overlapping channels

Use 160 MHz channels to maximize throughput for each AP

Use 40 MHz channels with a non-overlapping channel plan

Juniper NetworksCertified Specialist, Mist AI Wireless (JNCIS-MistAI)

Domain 1Objective 3

RF Basics JN0-452 Practice Questions (Page 3)

Part of the Wi-Fi Fundamentals domain, which makes up ~20% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–12 in this domain), expect 1–2 from this objective — we provide 33 practice questions to prepare you well beyond it. (estimate)

33questions here

7free pages

10concepts

Questions 11–15

11application · medium
A site survey reveals that a Wi-Fi network on channel 6 is experiencing high retry rates. The survey also detects a strong signal from a neighboring AP on channel 6 and a weaker signal from an AP on channel 5. Which type of interference is most likely causing the retries?
Select an answer first
12foundation · easy
Which of the following is a common source of RF noise in the 2.4 GHz band?
Select an answer first
13expert · hard
A manufacturing facility has a large open floor with metal machinery and moving robotic arms. A site survey shows that a client receives a strong signal but experiences frequent data rate drops. The engineer suspects multipath. Which combination of factors is most likely causing the issue?
Select an answer first
14foundation · easy
Which environmental factor is known to cause significant RF absorption, particularly in outdoor Wi-Fi deployments?
Select an answer first
15expert · hard
A stadium is deploying Wi-Fi 6E APs for a large event. The network team must minimize co-channel interference while supporting high client density. They have access to the 6 GHz band and can use 20, 40, 80, or 160 MHz channels. Which channel width and channel plan provides the best balance of throughput and interference avoidance?
Select an answer first

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RF Basics JN0-452 Practice Questions (Page 3)

Questions 11–15

A site survey reveals that a Wi-Fi network on channel 6 is experiencing high retry rates. The survey also detects a strong signal from a neighboring AP on channel 6 and a weaker signal from an AP on channel 5. Which type of interference is most likely causing the retries?

Which of the following is a common source of RF noise in the 2.4 GHz band?

A manufacturing facility has a large open floor with metal machinery and moving robotic arms. A site survey shows that a client receives a strong signal but experiences frequent data rate drops. The engineer suspects multipath. Which combination of factors is most likely causing the issue?

Which environmental factor is known to cause significant RF absorption, particularly in outdoor Wi-Fi deployments?

Keep studying — Wi-Fi Fundamentals