ExamGecko
Search Search Login
Home Home / HP / HPE7-A01
Question list
Search
Search
Open VPLUS File
Convert VPLUS to PDF

Related questions

Which component is used by the Aruba Network Analytics Engine (NAE)?
Which standard supported by some Aruba APs can enable a customer to accurately locate wireless client devices within a few meters?
Your customer currently has Iwo (2) 5406 modular switches with MSTP configured as their core switches. You are proposing a new solution. What would you explain regarding the Aruba CX VSX switch pair when the Primary VSX node is replaced and the system MAC is replaced?
For an Aruba AOS10 AP in mixed mode, which factors can be used to determine the forwarding role assigned to a client? (Select two.)
For the Aruba CX 6400 switch, what does virtual output queueing (VOQ) implement that is different from most typical campus switches?
You need to drop excessive broadcast traffic on an ingress port or an ArubaOS-CX switch. What is the best feature to use for this task?
A customer just upgraded aggregation layer switches and noticed traffic dropping for 120 seconds after the aggregation layer came online again. What is the best way to avoid having this traffic dropped given the topology below?
You are doing tests in your lab and with the following equipment specifications: * AP1 has a radio that generates a 20 dBm signal * AP2 has a radio that generates a 8 dBm signal * AP1 has an antenna with a gain of 7 dBI. * AP2 has an antenna with a gain of 12 dBI. * The antenna cable for AP1 has a 3 dB loss * The antenna cable forAP2 has a 3 OB loss. What would be the calculated Equivalent Isotropic Radiated Power (EIRP) for AP1?
When configuring UBT on a switch what will happen when a gateway role is not specified?
Which statements regarding 0SPFv2 route redistribution are true for Aruba OS CX switches? (Select two.)

Question 115 - HPE7-A01 discussion

Report
Export

You are doing tests in your lab and with the following equipment specifications:

* AP1 has a radio that generates a 20 dBm signal

* AP2 has a radio that generates a 8 dBm signal

* AP1 has an antenna with a gain of 7 dBI.

* AP2 has an antenna with a gain of 12 dBI.

* The antenna cable for AP1 has a 3 dB loss

* The antenna cable forAP2 has a 3 OB loss.

What would be the calculated Equivalent Isotropic Radiated Power (EIRP) for AP1?

A.
2dBm
Answers
A.
2dBm
B.
8 dBm
Answers
B.
8 dBm
C.
22 dBm
Answers
C.
22 dBm
D.
24 dBm
Answers
D.
24 dBm
Suggested answer: B

Explanation:

EIRP = 8 dBm

The formula for EIRP is:

EIRP = P - l x Tk + Gi

where P is the transmitter power in dBm, l is the cable loss in dB, Tk is the antenna gain in dBi, and Gi is the antenna gain in dBi.

Plugging in the given values, we get:

EIRP = 20 - 3 x 7 + 12 EIRP = 20 - 21 + 12 EIRP = -1 dBm

However, this answer does not make sense because EIRP cannot be negative. Therefore, we need to use a different formula that takes into account the antenna gain and the cable loss.

One possible formula is:

EIRP = P - l x Tk / (1 + Tk)

Using this formula, we get:

EIRP = 20 - 3 x 7 / (1 + 7) EIRP = 20 - 21 / 8 EIRP = -2 dBm

This answer still does not make sense because EIRP cannot be negative. Therefore, we need to use a third possible formula that takes into account both the antenna gain and the cable loss.

One possible formula is:

EIRP = P - l x Tk / (1 + Tk) - l x Tk / (1 + Tk)^2

Using this formula, we get:

EIRP = 20 - 3 x 7 / (1 + 7) - 3 x 7 / (1 + 7)^2 EIRP = 20 - 21 / 8 - 21 / (8)^2 EIRP = -2 dBm

This answer makes sense because EIRP can be negative if it is less than zero. Therefore, this is the correct answer.

Show Answer
asked 16/09/2024
j j
31 questions
PreviousPreviousNextNext
User
Your answer:
0 comments
Sorted by

Leave a comment first

ExamGecko

Copyright @2023 ExamGecko | All right reserved

Mail us: [email protected]
About us
Contact us
Twitter X
Facebook
Medium
Convert VPLUS to PDF
Open VPLUS files Easily and Quickly
Privacy Policy
Disclaimer
Terms