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JN0-643 Exam Questions & Answers

Exam Code: JN0-643

Exam Name: Enterprise Routing and Switching, Professional (JNCIP-ENT)

Updated: Mar 20, 2024

Q&As: 287

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Practice These Free Questions and Answers to Pass the JNCIP Exam

Questions 1

-- Exhibit -[edit protocols vstp] 'vlan all' Cannot configure VSTP on all VLANs when more than 253 VLANs are configured. Configure vstp vlan- group along with STP or RSTP to cover all VLANs [edit protocols] 'vstp' Failed to configure vstp on all vlans error: configuration check-out failed -- Exhibit -

Click the Exhibit button.

What are two reasons for the commit error shown in the exhibit? (Choose two.)

A. The set protocols vstp vlan all configuration is not supported.

B. There are more than 253 VLANs configured on the switch.

C. MSTP is not configured with VSTP.

D. STP or RSTP is not configured along with VSTP on the switch.

Show Answer
Questions 2

You are asked to implement a captive portal on your EX Series switches.

What are three required steps? (Choose three.)

A. You must create the captive portal login page.

B. You must ensure the Web service is turned on.

C. You must specify the interfaces participating in the captive portal.

D. You must create and apply an authentication profile.

E. You must create an authentication whitelist.

Show Answer
Questions 3

What is an IP multicast routing protocol?

A. RSVP

B. OSPF

C. PIM

D. CDP

Show Answer
Questions 4

Referring to the exhibit, what is the probability of the traffic being dropped if interface reaches 85% OF ITS bandwidth capacity?

A. 90%

B. 95%

C. 60%

D. 80%

Show Answer
Questions 5

You want to deploy MSTP with multiple regions. Each region should have a unique root bridge to accommodate a set of VLANs. Which three configuration elements must watch on switches participating in this deployment scenario? (Choose three)

A. MSTI toVLAN mapping

B. revision level

C. CST BPDU parameters

D. configuration name

E. bridge priority

Show Answer

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