JN0-643 Exam Dumps

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JNCIP-ENT Exam Objectives (Exam: JN0-643)

The Juniper Networks Certification Program (JNCP) Junos Security certification track is a program that permits participants to reveal ability with Juniper Networks technology. Victorious applicants show thorough understanding of safety technology in general & Junos software for SRX Series devices.
Topics listed are subject to change.
IP Multicast
Ethernet Switching and Spanning Tree
Layer 2 Authentication and Access Control
IP Telephony Features
Class of Service (CoS)

JN0-643 Dumps

Describe the concepts, operation and functionality of OSPFv2 and OSPFv3
OSPF LSA types

OSPF area types and operations
LSA flooding through an OSPF multi-are
a network
DR/BDR operation
SPF algorithm
Metrics, including external metric types
Authentication options
Route summarization and restriction
Virtual links
OSPFv2 vs OSPFv3
Given a scenario, demonstrate knowledge of how to configure and monitor single-area and multi-area OSPF
Implement OSPF routing policy
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JN0-643 Practice Test | A medium-sized enterprise has…

Question: 44

A medium-sized enterprise has some devices that are 802.1X capable and some that are not. Any device that fails authentication must be provided limited access through a VLAN called NONAUTH. How do you provide this access?

A. Configure NONAUTH VLAN as the guest VLAN.
B. Configure NONAUTH VLAN as the server-reject VLAN.
C. Configure NONAUTH VLAN as the guest VLAN and the server-reject VLAN.
D. Configure a separate VLAN for each type of user: 802.1X and non-802.1X.

Answer: C

JN0-634 Braindumps | Which two statements about the…

Question: 43

Which two statements about the integrated user firewall feature of the Junos OS are true? (Choose two.)

A. The maximum number of supported active directory servers is ten.
B. IPv6 addresses are not supported.
C. The maximum number of supported active directory servers is five.
D. IPv6 addresses are supported.

Answer: AB

JN0-643 Braindumps | You want to deploy MSTP with…


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

Answer: A,B,D

JN0-643 | An emergency Class 3 IP phone is connected to an EX Series…

Question: 41

An emergency Class 3 IP phone is connected to an EX Series switch. You want to ensure that the IP phone does not have any problems if PoE power demands on the switch are greater than the PoE power budget. What should you do to accomplish this task?

A. You must connect the IP phone into one of the ports from ge-0/0/0 to ge-0/0/7.
B. Set the power class on the PoE interface to 3.
C. Set the PoE priority to high.
D. Enable the guard-band parameter.

Answer: C

JN0-643 | In your 802.1X-enabled network a RADIUS server…

Question: 39

In your 802.1X-enabled network, a RADIUS server fails to respond or authenticate a device. On an EX Series switch, what are three supported actions? (Choose three.)

A. Traffic can be allowed.
B. Traffic can be denied.
C. Traffic can be redirected to another subnet.
D. Traffic can be redirected to another VLAN.
E. Traffic can be redirected to another port.

Answer: A,B,D

JN0-643 | Controller Maximum Power Guard Management…

Question: 38

— Exhibit —
Controller Maximum Power Guard Management Status Lldp
index power consumption band Priority
0 792.00W 603.50W 0W Class AT_MODE Disabled
— Exhibit —
Click the Exhibit button.
Referring to the exhibit, which statement is true?

A. The switch supports PoE+.
B. The switch is protected against spikes in power demand.
C. The switch supports a maximum power draw per PoE port of 15.4 watts.
D. The switch can manually assign priorities per interface.

Answer: A

JN0-643 | Your company uses 802.1X to authenticate…

Question: 37

Your company uses 802.1X to authenticate your users. You want to provide access to the Internet when users cannot authenticate on the RADIUS server or when the RADIUS server becomes unreachable. Which two methods accomplish this goal? (Choose two.)

A. using a captive portal
B. using a server fail fallback
D. using a guest VLAN

Answer: B,D

JN0-643 | You are asked to implement VSTP…

Question: 36

You are asked to implement VSTP on all devices in your Layer 2 network. Which three statements are correct? (Choose three.)

A. VSTP supports up to 256 different spanning-tree topologies.
B. A BPDU is sent for each spanning-tree instance.
C. Each VLAN will be assigned to a unique spanning-tree instance.
D. MSTP can be used in addition to VSTP to account for VLANs outside of the supported range.
E. VSTP can be used to load-balance Layer 2 traffic using VLANs.

Answer: B,C,E

JN0-643 | You are asked to implement MSTP…

Question: 35

You are asked to implement MSTP on all devices in your Layer 2 network. Which three parameters must match on all devices within the same region? (Choose three.)

A. region name
B. hello timer
C. maximum age
D. revision level
E. VLAN mapping table

Answer: A,D,E