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Juniper JN0-663 Exam Topics:
| Section | Objectives |
|---|---|
| Class of Service (CoS) | Describe the concepts, operation, or functionality of Junos CoS
Given a scenario, demonstrate knowledge of how to configure or monitor CoS |
| Layer 2 VPNs | Describe the concepts, operation, or functionality of BGP Layer 2 VPNs
Describe the concepts, operation, or functionality of LDP Layer 2 circuits
Describe the concepts, operation, or functionality of VPLS
Describe the concepts, operation, or functionality of EVPN
Given a scenario, demonstrate knowledge of how to configure, monitor, or troubleshoot Layer 2 VPNs
|
| OSPF | Describe the concepts, operation, or functionality of OSPFv2 or OSPFv3
Given a scenario, demonstrate knowledge of how to configure or monitor single-area or multi-area OSPF
|
| IS-IS | Describe the concepts, operation, or functionality of IS-IS
Given a scenario, demonstrate knowledge of how to configure or monitor single-area or multi-area IS-IS
|
| IP Multicast | Describe the concepts, operation, or functionality of IP multicast
Given a scenario, demonstrate knowledge of how to configure or monitor IGMP, PIM-DM, or PIM-SM (including SSM)
|
Topics of Service Provider Routing and Switching, Professional JN0-663 Exam
Candidates must know the exam topics before they start preparation. Because it will help them in hitting the core. Our Juniper JN0-663 dumps will include the following topics: OSPF
- DR/BDR operation
- OSPF area types and operations
- Summarize and restrict routes
- LSA flooding through an OSPF multi-area network
- SPF algorithm
IS-IS
- IS-IS areas/levels and operations
- DIS operation
- Metrics, including wide metrics
- LSP flooding through an IS-IS multi-area network
- SPF algorithm
BGP
- Regular expressions
- BGP communities
- Multipath
- Multihop
- BGP route damping
- BGP attributes: concept and operation
- Next hop resolution
- Load balancing
- Multiprotocol BGP
- Advanced BGP options
- FlowSpec
Class of Service (CoS)
- Packet loss priority
- CoS header fields
- Rewrite rules
- CoS processing on Junos devices
- Policers
- Schedulers
- Classification
- Forwarding classes
IP Multicast
- IGMP
- PIM dense-mode and sparse-mode
- Rendezvous point (RP): concept, operation, discovery, and election
- Any-Source Multicast (ASM) versus Source-Specific Multicast (SSM)
- Anycast RP
- SSM: requirements, benefits, address ranges
- RPF: concept and operation
- Components of IP multicast, including multicast addressing
Layer 3 VPNs
- AutoDiscovery
- Layer 2 interworking
- Route targets
- Virtual circuit label
- Forwarding tables
- Route distinguishers
Layer 2 VPNs
- EVPNs
- Given a scenario, demonstrate knowledge of how to configure, monitor, or troubleshoot Layer 2 VPNs
- BGP Layer 2 VPNs
- EVPN Multihoming
- Site IDs
- LDP Layer 2 circuits
- MAC learning and distribution
- Traffic flow: control and data planes
- VPLS Multihoming
- VPLS
- BGP VPLS label distribution
- Route targets
- Traffic flow: control and data planes
- BGP EVPN label distribution
NEW QUESTION 40
Exhibit.
You are using EVPN to provide Layer 2 stretched VLANs between two sites You notice that the MAC addresses in either site are not showing up on the remote site.
Referring to the exhibit, what are two ways to solve this problem? (Choose two )
- A. On R2, issue the set switch-options vrf-target target: 65101:22030 command
- B. On R1, issue the sec protocols evpn vni-options vni 22030 vrf-target target:65101:22030 command
- C. On R1, issue the sec 3wicch-cpt:.cr.3 vrf-target target: 65101:22030 Command
- D. On R2 issue the set protocols evpn vni-options vni 22030 command
Answer: A,C
NEW QUESTION 41
Exhibit:
Referring to the exhibit, a Layer 3 VPN is configured, however, the routes are being hidden.
What is the problem?
- A. A route distinguisher mismatch exists between the peers.
- B. The BGP peer is not reachable through the IGP.
- C. An active MPLS tunnel does not exist between the peers.
- D. A VRF target community mismatch exists between the peers.
Answer: C
NEW QUESTION 42
Exhibit:
You notice an inconsistency between the routing table and the OSPF database, as shown in the exhibit.
What are two reasons for this behavior? (Choose two.)
- A. The LSA is a Type 5 LSA.
- B. The LSA is a Type 4 LSA.
- C. An OSPF import policy is being applied to the route.
- D. An OSPF export policy is being applied to the route.
Answer: A,C
NEW QUESTION 43
Exhibit:
Referring to the exhibit, which three statements are correct? (Choose three.)
- A. The router with the IP address 10.101.100.3 is the originator of this route.
- B. This route contains the MAC address of an end host.
- C. The ESI is 00:22:22:22:22:22:22:22:22:22.
- D. This route is an EVPN Type-1 route.
- E. This ESI Auto-Discovery route is used for designated forwarder election.
Answer: A,C,D
NEW QUESTION 44
Exhibit:
Referring to the exhibit, which two statements are true? (Choose two.)
- A. This router is an ABR
- B. There are two interfaces marked as passive.
- C. This router is an ASBR.
- D. There is one interface marked as passive.
Answer: B,C
NEW QUESTION 45
Exhibit:
Referring to the exhibit, you need to implement VPLS between CE-A1 and CE-A2 You must ensure that no loops are created due to the multihoming of the connection from CE-A2 to PE2 and PE3.
Based on the type of VPLS, which two solutions will satisfy this requirement? (Choose two.)
- A. In an LDP VPLS, configure a primary and backup neighbor.
- B. In a BGP VPLS, configure a primary and backup neighbor.
- C. In an LDP VPLS. configure multihoming and local preference on PE-2 and PE-3
- D. In a BGP VPLS, configure multihoming and local preference on PE-2 and PE-3.
Answer: A,D
NEW QUESTION 46
Exhibit:
Which two statements regarding the output shown in the exhibit are correct? (Choose two.)
- A. The PEs have matching control word values.
- B. The type of connection is remote.
- C. The label associated with this virtual circuit is out of range.
- D. The type of connection is local.
Answer: A,B
NEW QUESTION 47
Which two statements about virtual links are correct? (Choose two.)
- A. Virtual links are used for control plane traffic.
- B. Virtual links are point-to-point.
- C. Virtual links are excluded from SPF calculations.
- D. Virtual links are bidirectional.
Answer: A,B
NEW QUESTION 48
You are establishing a Layer 3 VPN between two PE devices Currently you have a single internal IPv4 BGP peering between the PE devices. You must ensure that the IPv4 and IPv6 routes from both CE devices are exchanged between these sites Which two statements are correct in this scenario? (Choose two.)
- A. You must establish an IPv6 BGP peering between the two PEs
- B. You must enable the inet6-vpn NLRI on both PE devices.
- C. You must enable IPv6 tunneling on the LSPs between the PE devices
- D. You must enable the inet-vpn NLR on both PE devices.
Answer: B,D
NEW QUESTION 49
Exhibit:
CE-1, CE-2, and CE-3 are part of a single VPLS VPN An Ethernet frame has just arrived at PE-3 from CE-3.
It has a source MAC address of CE-3 and a destination MAC address of CE-1. You want to know what PE-3 does with the Ethernet frame.
Referring to the exhibit, which statement is correct?
- A. It drops the packet because the destination MAC address is not for PE-3.
- B. It drops the packet because the destination MAC address is not in PE-3's MAC table.
- C. It forwards the packet to PE-1 and PE-2.
- D. It forwards the packet to PE-1 only.
Answer: C
NEW QUESTION 50
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 51
Which two statements are true about what a route reflector does by default when distributing routes it has received from reflector clients? (Choose two.)
- A. It adds its cluster ID to the client-received routes.
- B. It sets the next hop of all routes to "self' to prevent routing loops.
- C. It changes the default BGP attributes to inform peers that it is a route reflector.
- D. It does not change any received BGP attributes.
Answer: A,D
NEW QUESTION 52
You must deploy an interprovider VPN option that ensures that the ASBRs do not need to store any VPN routes.
In this scenario, which interprovider VPN option should you choose?
- A. option B
- B. option A
- C. option C
- D. option D
Answer: C
NEW QUESTION 53
You want to allow the load balancing of traffic for an EBGP route from two different peers in the same AS.
Which three actions are needed to accomplish this task? (Choose three.)
- A. The multipath parameter should be configured under protocols BGP
- B. A policy to load-balance traffic should be applied to the forwarding table
- C. An equal cost AS path for the route is required.
- D. The multihop parameter should be configured under protocols BGP
- E. At least two interfaces should be connected to the same EBGP neighbor
Answer: A,B,C
NEW QUESTION 54
Exhibit:
You notice an inconsistency between the routing table and the OSPF database, as shown in the exhibit.
What are two reasons for this behavior? (Choose two.)
- A. The LSA is a Type 5 LSA.
- B. The LSA is a Type 4 LSA.
- C. An OSPF import policy is being applied to the route.
- D. An OSPF export policy is being applied to the route.
Answer: A,C
NEW QUESTION 55
Exhibit:
Referring to the exhibit, which two statements are true? (Choose two.)
- A. This router is an ABR
- B. There are two interfaces marked as passive.
- C. This router is an ASBR.
- D. There is one interface marked as passive.
Answer: B,C
NEW QUESTION 56
Exhibit:
The exhibit shows a BGP peering session for two PE routers. The BGP session is up, but the hosts in the Layer
2 VPN that uses the BGP session are unable to communicate.
What is the problem in this situation?
- A. The BGP peer does not support the add-path feature.
- B. There is a mismatch in the supported NLRI address families between the BGP peers.
- C. The local BGP router does not support Layer 2 VPN and Layer 3 VPN NLRI address families at the same time.
- D. The BGP peer does not support the restarter functionality.
Answer: B
NEW QUESTION 57
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 58
Exhibit:
A network administrator is concerned about the number of LSAs that they are observing on the network.
What will reduce Type 7 LSAs advertised from R2 to the non-backbone routers shown in the exhibit?
- A. Configure no-summaries under protocols ospf3 on R2.
- B. Configure no-summaries under area 0.0.0.2 on R2.
- C. Configure nssa under area 0.0.0.2 on R2.
- D. Configure no-naaa-abr under protocols ospf3 on R2.
Answer: D
NEW QUESTION 59
Exhibit:
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. R1 will never forward transit traffic through R2.
- B. The OSPF interface metrics on R2 are all set to 65535.
- C. Transit traffic from R1 to R4 will traverse R3.
- D. R2 stops sending LSAs into the network.
Answer: B,C
NEW QUESTION 60
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 61
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