Juniper JN0-649 JNCIP-ENT Exam Practice Test Instant Access

Question 1

You are deploying an 802.1X solution and must determine what would happen if clients are unable to re-authenticate to the RADIUS server.

In this scenario, which configuration would provide access to the network if the supplicant is already authenticated?

Amove

Bpermit

Cdeny

Dsustain

Answer : D

Question 2

Referring to the outputs shown in the exhibit, which two statements are correct about the IS-IS adjacency? (Choose two.)

AR1 is configured to participate in both Level 1 and Level 2.

BR2 is configured to participate in both Level 1 and Level 2.

CR1 is configured to participate in Level 2 only.

DR2 is configured to participate in Level 2 only.

Answer : A, D

Question 3

You must ensure that all routes in the 10.0.0/8 address range are not advertised outside of your AS.

Which well-known BGP community should be assigned to these addresses to accomplish this task?

Ano-export

Bno-peer

Cinternet

Dno-advertise

Answer : A

For specifying the BGP community attribute only, you also can specify community-ids as one of the following well-known community names defined in RFC 1997:

no-advertise---Routes containing this community name are not advertised to other BGP peers.

no-export---Routes containing this community name are not advertised outside a BGP confederation boundary.

no-export-subconfed---Routes containing this community are advertised to IBGP peers with the same AS number, but not to members of other confederations.

llgr-stale---Adds a community to a long-lived stale route when it is readvertised.

no-llgr---Marks routes which a BGP speaker does not want to be retained by LLGR. The Notification message feature does not have any associated configuration parameters.

https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/ref/statement/community-edit-routing-options.html

Question 4

You want to provide Layer 2 connectivity between campus sites using Ethernet switches through a metro Ethernet service provider who is using Q-in-Q tagging on their network.

Referring to the exhibit, what are two design considerations in this environment? (Choose two.)

AVXLAN could be implemented on your network across this service provider network.

BEach campus switch shown must have a C-Tag 300 configured.

CL2PT is required on the SP network to support the spanning tree protocol.

DEach campus switch shown must have S-Tag 300 configured.

Answer : C, D

https://www.juniper.net/documentation/us/en/software/junos/multicast-l2/topics/ref/statement/layer2-protocol-tunneling-edit-vlans-l2pt-ex-series.html

Question 5

Remote branches connect to the corporate WAN through access switches. The access switches connect to access ports on the WAN distribution switch, as shown in the exhibit. L2PT has previously been configured on the tunnel Layer 2 traffic across the WAN. You decide to move the L2PT tunnel endpoints to the access switches. When you apply the L2PT configuration to the access switches, the ports that connect the access switches to the distribution switch shut down.

Which action would solve this problem?

AConfigure the links between the access switches and the distribution switch as a trunk port.

BDisable the BPDU block function on the access switches.

CDisable the BPDU block function on the distribution switch.

DConfigure a GRE tunnel to encapsulate the L2PT traffic across the WAN.

Answer : A

Access interfaces in an L2PT-enabled VLAN should not receive L2PT-tunneled PDUs. If an access interface does receive L2PT-tunneled PDUs, there might be a loop in the network, and the device will shut down the interface. https://www.juniper.net/documentation/us/en/software/junos/multicast-l2/topics/topic-map/layer-2-protocol-tunneling.html

Question 6

You are implementing the route summarization feature of OSPF.

Which two results do you achieve in this scenario? (Choose two.)

AIt helps in migrating to future multi-area OSPF network designs.

BIt reduced the routing table size, enabling devices to store and process less information.

CIt reduces the impact of topology changes on a device.

DIt provides optimal routing in the network.

Answer : B, C

OSPF inter-area route summarization reduces the routing information exchanged between areas and the size of routing tables, and improves routing performance. OSPF inter-area route summarization enables an ABR to summarize contiguous networks into a single network and advertise the network to other areas.

Question 7

You want to create an OSPF area that only contains intra-area route information in the form of Type 1 and Type 2 LSAs.

In this scenario, which area is needed to accomplish this task?

Atotally non-to-stubby area

Btotally stubby area

Cstub area

Dnon-to-stubby area

Answer : B

A totally stubby area (TSA) is a stub area in which summary link-state advertisement (type 3 LSAs) are not sent. A default summary LSA, with a prefix of 0.0. 0.0/0 is originated into the stub area by an ABR, so that devices in the area can forward all traffic for which a specific route is not known, via ABR.

Juniper JN0-649 Enterprise Routing and Switching, Professional JNCIP-ENT Exam Practice Test