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Difficulty in writing Service Provider Routing and Switching, Professional JN0-663 Exam
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NEW QUESTION 27
Exhibit:
A network administrator is migrating from IPv4 to IPv6 and one of the IS-IS adjacencies is not coming up between R1 and R2.
Which action will solve the problem?
- A. Remove topologies ipv6-unicast from protocols isis on R1.
- B. Configure topologies ipv4-unicast from protocols isis on R2.
- C. Configure an IPv4 address on interface ge-0/0/1 on R1.
- D. Remove topologies ipv6-unicast from protocols isis on R2.
Answer: C
NEW QUESTION 28
Exhibit:
Referring to the exhibit, what will the IS-IS cost be for R1 to reach R3?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 29
Exhibit:
You are troubleshooting an issue where R1 is no longer receiving the default IS-IS route from R3.
Referring to the exhibit, which action would you take to solve the problem?
- A. Delete the protocols isis ignore-attached-bit configuration statement on R1.
- B. Delete the protocols isis level 2 disable configuration statement on R3.
- C. Delete the protocols isis ignore-attached-bit configuration statement on R3.
- D. Delete the protocols isis import configuration statement on R1.
Answer: A
NEW QUESTION 30
Exhibit:
Referring to the exhibit, you have recently established a Layer 3 VPN between PE-1 and PE-2, connecting the two CE sites. Rowing information is being shared between sites and the customer has two-way communication After adding this VPN to your core network, PE-1 and PE-2 are no longer able to forward traffic to the Internet.
In this scenario, what is the problem?
- A. You must configure a multihop external BGP session between your PE devices and the Internet provider's ISP-A device.
- B. You must configure the inet unicast NLRI for the BGP session on both your PE devices.
- C. You must configure the inet-vpn NLRI for the BGP sessions on both your PE devices.
- D. You must configure a separate internal BGP group on both your PE devices specifically for Internet connectivity.
Answer: B
NEW QUESTION 31
Which two statements regarding ingress replication in EVPN are correct? (Choose two.)
- A. Ingress replication labels are learned from remote PEs through the EVPN Type-3 route.
- B. Ingress replication is only supported in vrf-type routing instances.
- C. Ingress replication relies on PIM to build the multicast replication tree.
- D. Ingress replication will replicate all BUM traffic to all remote PEs in the EVI.
Answer: A,D
NEW QUESTION 32
Exhibit:
R1 assigns incoming voice traffic to the ef forwarding class. All other traffic is assigned to the best-effort forwarding class You have configured a CoS re-write rule on R1 to include the correct CoS bit values in packets sent towards R2 You want R2 to classify traffic using the CoS markings created by R1.
Which two configuration steps are necessary to accomplish this task? (Choose two.)
- A. Assign the behavior aggregate classifier to the ge-0/0/1.0 interface on R2.
- B. Configure a behavior aggregate classifier on R2.
- C. Assign the CoS re-write rule to the ge-0/0/1.0 interface on R2.
- D. Configure a CoS re-write rule on R2 and assign matching CoS values.
Answer: A,C
NEW QUESTION 33
Exhibit:
Referring to the exhibit, you want to reduce the CPU processing load on PE 2 by preventing the receipt of routes belonging to Customer B.
In this scenario, which Layer 3 VPN scaling mechanism provides this functionality?
- A. route reflection
- B. route target filtering
- C. route origin
- D. route refresh
Answer: B
NEW QUESTION 34
Which two statements about wide and narrow metrics used in IS-IS are correct? (Choose two.)
- A. Wide metrics are enabled with the wide-metrics-onlyparameter under protocols isis hierarchy.
- B. Narrow metrics are enabled by default and use 8 bits in TLVs to send information.
- C. Disabling narrow metrics results in external routes being leaked from L1 to L2 areas automatically.
- D. Wide metrics are sent by default and use 24 bits in TLVs to send information.
Answer: A,B
NEW QUESTION 35
Exhibit:
R1 assigns incoming voice traffic to the ef forwarding class. All other traffic is assigned to the best-effort forwarding class You have configured a CoS re-write rule on R1 to include the correct CoS bit values in packets sent towards R2 You want R2 to classify traffic using the CoS markings created by R1.
Which two configuration steps are necessary to accomplish this task? (Choose two.)
- A. Assign the behavior aggregate classifier to the ge-0/0/1.0 interface on R2.
- B. Configure a behavior aggregate classifier on R2.
- C. Assign the CoS re-write rule to the ge-0/0/1.0 interface on R2.
- D. Configure a CoS re-write rule on R2 and assign matching CoS values.
Answer: A,C
NEW QUESTION 36
Click the Exhibit button.
A network administrator is investigating why traffic from R2 is not being forwarded to R1 Referring to the show isis database command output shown in the exhibit, what is causing this problem on the network?
- A. R1 is configured to drop all incoming traffic.
- B. R2 is ignoring specific LSPs from R1 in its SPF calculations.
- C. The preferred interface between R1 and R2 is experiencing errors
- D. R1 and R2 are in different IS-IS areas.
Answer: B
NEW QUESTION 37
Exhibit:
Which three statements are true about the show pim join output shown in the exhibit? (Choose three.)
- A. The shortest path to the source is through the RP
- B. The multicast stream has been configured with a backup path to allow for fast reroute.
- C. This is a source-specific multicast stream. G The multicast receiver is still using the RP to receive the stream.
- D. The multicast stream does not have an RP.
Answer: A,B,D
NEW QUESTION 38
Exhibit:
Referring to the exhibit, hosts in Site 1 and Site 2 are unable to communicate with each other through the Layer 3 VPN.
What is the problem?
- A. The two sites are using the same route distinguishes.
- B. The two sites are in the same AS.
- C. The two sites are using the same instance type.
- D. The two sites are using the same route target.
Answer: B
NEW QUESTION 39
Exhibit:
Your network connects two segments of your customer's network as shown in the exhibit They need to exchange routes between Segment 1 and Segment 2 but both segments use the same AS number.
Which two steps will accomplish this task? (Choose two.)
- A. Configure the routing-options autonomous-system loops l parameter on routers R1 and R4.
- B. Configure the BGP group with the advertise-peer-as parameter on routers R2 and R3.
- C. Configure the routing-options autonomous-system loops l parameter on routers R2 and R3.
- D. Configure the BGP group with the as-override parameter on routers R1 and R4.
Answer: A,B
NEW QUESTION 40
Exhibit:
A Layer 3 VPN exists in the provider network and the CE devices are connecting to the PE devices using BGP. The PE devices are receiving BGP routes from the CE devices and the PE devices have the CE BGP routes in their respective routing tables. However, the remote CE devices are not receiving the BGP routes.
Referring to the exhibit, what is the problem?
- A. A route distinguisher mismatch exists.
- B. A VRF target community mismatch exists.
- C. The CE devices are detecting an AS loop
- D. The PE devices are detecting an AS loop.
Answer: C
NEW QUESTION 41
Exhibit:
Referring to the exhibit, which path would traffic passing through R1 take to get.
- A. R1 -> R3 -> R5 -> R6
- B. R1 -> R3 -> R4 -> R6
- C. R1 -> R2 -> R4 -> R6
- D. R1 -> R2 -> R3 -> R6
Answer: B
NEW QUESTION 42
You are deploying a new EVPN service for your customers. You must build the service based on the following requirements
-- both Layer 2 and Layer 3 functionality must be supported
-- your customers must be able to support multiple VLANs in the same EVPN instance (EVI).
In this scenario which two types of routing instances should be configured? (Choose two.)
- A. virtual router
- B. virtual switch
- C. VRF
- D. EVPN
Answer: C,D
NEW QUESTION 43
Exhibit:
All adjacencies have been formed, no extra options have been configured, and no policies have been written.
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. R1 can reach R5.
- B. R2 will create a default route and send it as a TLV to R1
- C. R1 cannot reach R5
- D. R1 will create its own default route that points to R2
Answer: A,B
NEW QUESTION 44
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