Cisco CCNP Service Provider 350-501 Questions & Answers

• Question 241:

  Which protocol in the IPv6 stack does the MLD protocol use to carry its messages?

  A. NDP

  B. IGMPv6

  C. DHCPv6

  D. IGMP

  E. ICMPv6

  Correct Answer: E

• Question 242:

  Refer to the exhibit.

  mpls label range 16 100000 static 100002 1048570mapls label protocol 1dp

  mpls 1dp gracetal-restartinterface Loopback0! ip address 10.20.20.20 255.255.255.255no ip directed-broadcastno ip mroute-cache! interface Gi1/1/0ip address 10.12.0.2 255.255.0.0no ip direted-broadcastmpls label protocol ldpmpls ip ! router ospf 100log-adjacency-changesnsf cisco enforce globalredistribute connected subnets network 10.20.20.20 0.0.0.0 area 0 network 10.12.0.0 0.0.255.255 area 0 ! mpls ldp router-id Loopback0 force

  A network administrator implemented MPLS LDP changes on PE-A LSR device. The engineer must ensure there are no LDP peer are fully operational. Which LDP feature must the engineer apply to the existing configuration to eliminate the problem?

  A. Configure MPLS LDP IGP synchronization on the network.

  B. Configure MPLS LDP NSR for all LDP sessions.

  C. Enable LDP session protection under the routing protocol.

  D. Disable IP CEF on routers running LDP and enable LDP.

  Correct Answer: B

  Explanation: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/msp/configuration/xe- 3s/mp-ha-xe-3s-book/mp-nsr-ldp-supp.pdf

• Question 243:

  

  Refer to the exhibit what is the status of the L2 tunnel between PE1,PE2 and the layer 2 switches ?

  A. The layer 2 tunnel is down due to the ACL is applied on the PE2 interface

  B. The layer 2 tunnel is up and SW1 become the root bridge for VLAN 10

  C. The layer 2 tunnel is down due to the MTU mismatch between SW1 and SW2

  D. The layer 2 tunnel is up but no BPDUs are exchange unless an extra configuration is applied

  Correct Answer: B

• Question 244:

  

  Refer to the exhibit the 2.6.6.6/32 prefix is flapping when PE1 is flapping. Which action can fox this issue?

  A. On PE2, allow only redistribution from BGP into IS-IS on PE3, allow only redistribution from IS-IS into BGP

  B. On PE2 and PE3 reconfigure redistribute BGP into IS-IS using the metric-type external parameter

  C. configure a sham link between PE2 and PE3

  D. configure all IS-IS instances as level-1-only

  Correct Answer: B

• Question 245:

  Which are two benefits of using segment routing over RSVP-TE for traffic engineering? (Choose two)

  A. Segment routing traffic engineering tunnels always follow the low-latency path

  B. ECMP-aware traffic engineering is natively supported by segment routing

  C. Per-flow state is present only at the ingress node to the Segment routing-enabled network

  D. Per-flow state is present at the ingress and egress node to the segment routing-enabled network

  E. Per-flow state is maintained on all nodes of the segment routing-enabled network

  Correct Answer: BC

• Question 246:

  Refer to the exhibit.

  

  Which the link aggregation configuration router is running on Cisco IOS XR software, which LACP interface configuration is needed to add the interface to the bundle?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C

• Question 247:

  SNMPv3 provides which three security features?(Choose three)

  A. DES 56-bit encryption

  B. Encrypted user password

  C. Private community information that is exchanged out-of-band

  D. Device hostname that is authenticated via AES algorithm

  E. Message integrity

  F. Authentication that is based on MD5 or SHA algorithms

  Correct Answer: AEF

• Question 248:

  Which three OSPF pieces of information must between routers in order to establish an ospf neighborship? (Choose three)

  A. Area ID

  B. Hello interval and dead interval timer value

  C. LSA refresh period timer value

  D. Priority value

  E. Stub flag

  F. Process ID

  Correct Answer: ABE

• Question 249:

  Refer to the exhibit.

  R1# configure terminalR1(config)# router isis area2R1(config-router)# metric-style wide level-1

  An engineer is configuring multitiopology IS-IS for IPv6 on router R1. Which additional configuration must be applied to complete the task?

  A. R1# configure terminalR1(config)# router isis area2 R1(config-router)# address-family ipv6R1(config-router-af)# multi-topology

  B. R1# configure terminalR1(config)# router isis area1 R1(config-router)# metric-style wide level-2R1(config-router)# address-family ipv6R1(config-router-af)# multi-topology

  C. R1# configure terminalR1(config)# router isis area2 R1(config-router)# metric-style wideR1(config-router)# address-family ipv6R1(config-router-af)# multi topology

  D. R1# configure terminal

  R1(config)# router isis area1

  R1(config-router)# metric-style wide level-1

  R1(config-router)# address-family ipv6

  R1(config-router-af)# multi topology

  Correct Answer: A

  Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_isis/configuration/15-mt/irs-15-mt-book/ip6-route-multi-isis.html

• Question 250:

  A network engineer must implement SNMPv2 with these parameters

  1.

  Enable SNMP community string C1sc0 with read-only permissions.

  2.

  Enable interface index persistence.

  3.

  Restrict the SNMP community to only the monitoring server with IP address 198.18 19 100/32.

  4.

  Provide view-only access to ospflfEntry and ospfNbrEntry.

  Which configuration must the engineer apply?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A