A company is deploying a new VoIP system. The switch has a PoE budget of 370W. The administrator wants to power 20 IP phones that require 15.4W each, and 4 wireless access points that require 30W each. The total demand is 308W + 120W = 428W, which exceeds the budget. The administrator must ensure that the phones are always powered, but the APs can be powered if budget allows. What is the best configuration?

Increase the power limit on the phone ports

Set the phone ports to 'critical' priority and the AP ports to 'low' priority

Set all ports to 'high' priority

A network engineer is troubleshooting a PoE issue where a phone is not getting power. The 'show poe interface' output shows the port is 'fault'. What is the most likely cause?

The device is drawing more power than the port can provide

A switch has a PoE budget of 740W. Currently, 20 ports are drawing 15.4W each, and 10 ports are drawing 30W each. An administrator wants to add 5 more 30W devices. What is the total power required, and will it fit in the budget?

Total required is 758W; it exceeds the budget

Total required is 740W; it fits exactly

Total required is 730W; it fits

Total required is 770W; it exceeds the budget

Juniper NetworksCertified Professional, Enterprise Routing and Switching (JNCIP-ENT)

Domain 6Objective 1

Power over Ethernet (PoE) JN0-650 Practice Questions (Page 1)

Part of the IP Telephony Features domain, which makes up ~6% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~2–4 in this domain), expect 1–1 from this objective — we provide 21 practice questions to prepare you well beyond it. (estimate)

21questions here

5free pages

4concepts

Questions 1–5

1expert · hard
A company is deploying a new VoIP system. The switch has a PoE budget of 370W. The administrator wants to power 20 IP phones that require 15.4W each, and 4 wireless access points that require 30W each. The total demand is 308W + 120W = 428W, which exceeds the budget. The administrator must ensure that the phones are always powered, but the APs can be powered if budget allows. What is the best configuration?
Select an answer first
2foundation · easy
A network administrator needs to power a device that requires 25 W. Which PoE standard must the switch support?
Select an answer first
3foundation · easy
A switch has a PoE power budget of 370 W. It currently powers four devices that each draw 30 W. How much power remains for additional devices?
Select an answer first
4application · medium
A network engineer is troubleshooting a PoE issue where a phone is not getting power. The 'show poe interface' output shows the port is 'fault'. What is the most likely cause?
Select an answer first
5application · medium
A switch has a PoE budget of 740W. Currently, 20 ports are drawing 15.4W each, and 10 ports are drawing 30W each. An administrator wants to add 5 more 30W devices. What is the total power required, and will it fit in the budget?
Select an answer first

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Power over Ethernet (PoE) JN0-650 Practice Questions (Page 1)

Questions 1–5

A network administrator needs to power a device that requires 25 W. Which PoE standard must the switch support?

A switch has a PoE power budget of 370 W. It currently powers four devices that each draw 30 W. How much power remains for additional devices?

A network engineer is troubleshooting a PoE issue where a phone is not getting power. The 'show poe interface' output shows the port is 'fault'. What is the most likely cause?

A switch has a PoE budget of 740W. Currently, 20 ports are drawing 15.4W each, and 10 ports are drawing 30W each. An administrator wants to add 5 more 30W devices. What is the total power required, and will it fit in the budget?

Keep studying — IP Telephony Features