Juniper Juniper Certifications JN0-660 Questions & Answers

• Question 31:

  You are deploying OSPFv2 and OSPFv3 in your network. You must enable authentication to secure OSPF

  communication.

  Which authentication method is supported?

  A. MD5

  B. Simple

  C. IPsec

  D. RSA

  Correct Answer: C

• Question 32:

  Refer to the exhibit.

  

  The configuration shown in the exhibit displays a configuration for a commit script. However, you are unable to automatically retrieve the script from the remote server.

  How do you retrieve the commit script from a different remote server without adding to the configuration?

  A. Use the refresh-from feature.

  B. Use the refresh feature.

  C. Issue the direct-access feature.

  D. Use the allow-transients feature.

  Correct Answer: A

• Question 33:

  You are asked to implement a BGP-signaled VPLS network for a new customer. Which two statements are correct regarding this implementation? (Choose two.)

  A. A full mesh of LDP sessions between PEs must be configured.

  B. The PE routers distribute VPLS-to-label mapping using MP-IBGP.

  C. These MP-BGP sessions must be configured to support the I2vpn signaling address family.

  D. These MP-BGP sessions must be configured to support the inet-vpn signaling address family.

  Correct Answer: BC

• Question 34:

  What must you do to use the Layer 2 interworking interface to connect a BGP Layer 2 VPN with an LDP Layer 2 circuit? (Choose two.)

  A. You must configure a policy importing the bgp.l2vpn.0 routing table into the inet.0 routing table.

  B. You must enable the I2iw protocol.

  C. You must have a Tunnel Services PIC installed to used the L2 interworking interface.

  D. You must include the iw0 statement under the [edit interfaces] hierarchy.

  Correct Answer: BD

• Question 35:

  What are two requirements of Layer 2 VPN BGP route reflectors? (Choose two.)

  A. Routes are kept in the bgp.l2vpn.0 table.

  B. Route reflectors must support the l2vpn family.

  C. Route reflectors must support the inet-vpn family.

  D. Routes are kept in the inet.2 table.

  Correct Answer: AB

• Question 36:

  Which two statements describe the benefits of using point-to-multipoint LSPs in an environment with MVPNs? (Choose two.)

  A. Performance levels within the LSPs can be guaranteed, regardless of the signaling protocol used.

  B. A service provider network does not need to run PIM to support multicast routing.

  C. Data replication can be done by downstream LSRs and not just by the ingress PE router.

  D. Multicast traffic can be protected, regardless of the signaling protocol used.

  Correct Answer: BC

• Question 37:

  Refer to the exhibit.

  

  What are two ways to resolve the error BGP label allocation failure: Need a next hop address on LAN? (Choose two.)

  A. Configure a /32 static route with the next hop as itself to any remote address on the network assigned to the CE-facing interface.

  B. Resolve the MPLS issue between the PE routers.

  C. Configure a static ARP entry on fe-l/#3.0.

  D. Configure vrf-table-label in the routing-instance.

  Correct Answer: AD

• Question 38:

  You must add the 5.0.0.1 OSPF route to the inet.3 routing table for LSP resolution. Which two configuration examples meet this requirement? (Choose two.)

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: AD

• Question 39:

  You have recently deployed an MPLS network using CSPF with its default settings. Which statement is true regarding path selection when multiple candidate paths exist?

  A. The path selected will be based on the most-fill bandwidth ratio.

  B. The path selected will be based on the least-fill bandwidth ratio.

  C. The path selected will be based on a randomized algorithm.

  D. The path selected will be based on the first-hop LSR's RID.

  Correct Answer: C

• Question 40:

  You are asked to mask your Junos MPLS core network from users that use traceroute. You have configuration privileges only on the ingress device. Which feature will accomplish this task?

  A. Egress-protection

  B. No-propagate-ttl

  C. No-record

  D. No-decrement-ttl

  Correct Answer: D