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JN0-694 Exam Questions & Answers

Exam Code: JN0-694

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

Updated: Mar 18, 2024

Q&As: 52

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Practice These Free Questions and Answers to Pass the JNCSP-ENT Exam

Questions 1

You are implementing Q-in-Q tunneling on an EX Series switch. You want the tunnel to support all C-

VLANs; however, only some VLANs are able to send traffic across the tunnel. Switch-1 has the following

configuration:

[edit vlans]

user@Switch-1# show

v100 {

vlan-id 100;

interface {

ge-0/0/0.10;

ge-0/0/1.20;

}

dot1q-tunneling {

customer-vlans [ ];

}

}

What would solve this problem?

A. Add family ethernet-switching to the tunnel-side interface on Switch-1.

B. Implement RSTP.

C. Q-in-Q tunneling will not work in this scenario; use a Layer 2 VPN instead.

D. Remove the customer-vlans statement.

Show Answer
Questions 2

You observe that a router is using an unusually high amount of CPU cycles. You determine that continuous SPF calculations in OSPF are being performed.

What are two reasons for this problem? (Choose two.)

A. The wrong authentication keys between the OSPF neighbors are used.

B. The interface MTU is mismatched between the OSPF neighbors.

C. There are duplicate router IDs within the OSPF area.

D. An OSPF adjacency is flapping.

Show Answer
Questions 3

-- Exhibit -user@router> show ospf database

Area 0.0.0.1 Type ID Adv Rtr Seq Age Opt Cksum Len Router 172.24.255.1 172.24.255.1 0x800000d4 182 0x22 0x59f3 36 Router 172.24.255.2 172.24.255.2 0x800000d4 177 0x22 0x57f2 36 Router *172.24.255.4 172.24.255.4 0x800000dc 176 0x22 0x75fa 72 Network 172.24.124.2 172.24.255.2 0x80000007 177 0x22 0x7957 36 Summary 172.24.13.0 172.24.255.1 0x80000004 2370 0x22 0x3f62 28 Summary 172.24.23.0 172.24.255.1 0x80000002 471 0x22 0xdeb9 28 Summary 172.24.255.1 172.24.255.1 0x800000cb 2037 0x22 0x2bbb 28 Summary 172.24.255.2

172.24.255.2 0x800000cc 487 0x22 0x19ca 28 Summary 172.24.255.3 172.24.255.1 0x80000003 140 0x22 0xb2f9 28 OSPF AS SCOPE link state database Type ID Adv Rtr Seq Age Opt Cksum Len Extern *1.47.82.0 172.24.255.4 0x80000002 1037 0x22 0x4225 36 Extern *100.0.0.0 172.24.255.4 0x80000001 2643 0x22 0xfc88 36

user@router> show ospf neighbor Address Interface State ID Pri Dead

172.24.124.2 ge-0/0/1.0 Full 172.24.255.2 128 36

172.24.124.1 ge-0/0/1.0 Full 172.24.255.1 128 30

user@router> show ospf interface ge-0/0/1.0 extensive Interface State Area DR ID BDR ID Nbrs ge-0/0/1.0 PtToPt 0.0.0.1 0.0.0.0 0.0.0.0 2 Type: P2MP, Address: 172.24.124.4, Mask: 255.255.255.0, MTU: 1500, Cost: 1 Adj count: 2 Hello: 10, DeaD. 40, ReXmit: 5, Not Stub Auth type: None Protection type: None Topology default (ID 0) -> Cost: 1 user@router> show route protocol ospf table inet.0

inet.0: 11133 destinations, 11135 routes (11133 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both

224.0.0.5/32 *[OSPF/10] 1w0d 00:01:14, metric 1 MultiRecv -- Exhibit -

Click the Exhibit button.

Referring to the exhibit, why are the OSPF routes missing from the routing table for this router?

A. mismatching OSPF interface type with the neighbor

B. MTU mismatch with the neighbor

C. incorrect IP address configured on the interface

D. no Type 4 LSAs in the OSPF database

Show Answer
Questions 4

-- Exhibit -protocols {

bgp {

group isps {

type external;

peer-as 13090194;

multipath multiple-as;

neighbor ;

neighbor ;

}

}

}

-- Exhibit -

Click the Exhibit button.

The exhibit shows the complete BGP configuration for a router. The network operator reports that both

peering sessions are up, but the router is not conducting per-flow load balancing over the connections to

these two peers.

What are two causes for this behavior? (Choose two.)

A. The forwarding-table export policy is not configured to cause per-flow load balancing.

B. The multiple-as parameter causes BGP to only choose multiple paths to different ASs, rather than multiple paths to the same AS.

C. The router has different IGP metrics to these BGP peers.

D. The BGP peers are not sending identical advertisements over the two sessions.

Show Answer
Questions 5

The exhibit shows part of the configuration for a router. You receive a complaint that the router is not correctly reclassifying all traffic to the best-effort forwarding class when the amount of IPv4 traffic exceeds 10 Mbps.

You have isolated the problem to traffic with the IP precedence bits set to the binary value 101. Which configuration is causing this behavior?

A. the filter firewall filter's term 1

B. the filter firewall filter's term 2

C. the ip_classifier_1 classifier

D. the policer1 policer

Show Answer

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