Juniper Juniper Certifications JN0-660 Questions & Answers

• Question 1:

  -- Exhibit

  

  -- Exhibit -

  Click the Exhibit button.

  Referring to the exhibit, you see the proper BGP, MPLS, and routing instance configuration for PE1 and PE2.

  Which configuration on PE1 will allow CE1 to communicate with CE2 over a Layer 2 VPN, assuming PE2 has PPP TCC encapsulation on so-0/0/0.0?

  A. [edit interfaces fe-0/2/2 unit 42] family tcc { proxy { inet-address 192.168.1.2; } remote { inet-address 192.168.1.1; } }

  B. [edit interfaces fe-0/2/2 unit 42] family tcc { remote { inet-address 192.168.1.2; } }

  C. [edit interfaces fe-0/2/2 unit 42] family tcc { proxy { inet-address 192.168.1.1; } }

  D. [edit interfaces fe-0/2/2 unit 42] family tcc { proxy { inet-address 192.168.1.1;

  } remote { inet-address 192.168.1.2; } }

  Correct Answer: A

• Question 2:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button. Referring to the VPLS network shown in the exhibit, you notice that only one of the two CE sites configured

  under the VPLS instance forms a connection to the remote site. The other site remains in a forwarding and learning mode.

  How does PE1 determine which CE within the VPLS instance forms the connection to the remote site?

  A. The site that first distributes the outgoing label to the remote site will form the connection.

  B. The site with a lower interface index value will form the connection.

  C. The site with a higher interface index value will form the connection.

  D. The site with the lowest site ID will form the connection.

  Correct Answer: D

• Question 3:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button.

  Referring to the exhibit, what are three operations performed by the service provider's PE routers?

  (Choose three.)

  A. Modify the VRF label assigned using MP-BGP.

  B. Maintain the customer's /32 loopback internal routes.

  C. Use MP-EBGP to send Customer Site 2's internal routes to CE-1.

  D. Maintain the customer's external routes.

  E. Maintain routes internal to the provider's network.

  Correct Answer: BCE

• Question 4:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button.

  Referring to the exhibit, you have recently configured a Layer 3 VPN between Site 1, Site 2, and Site 3.

  The CE2 device has all routes from Site 1 and Site 3. The CE3 device has all the routes from Site 1 and

  Site 3. CE1 is not receiving any routes from either Site 2 or Site 3.

  Which statement is correct?

  A. PE2 must redistribute the routes into OSPF using a VRF export policy.

  B. You must configure a sham link between all three sites.

  C. OSPF is not a supported PE to CE routing protocol.

  D. You must create an export policy on PE1 to redistribute the VPN routes into OSPF.

  Correct Answer: D

• Question 5:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button.

  Referring to the exhibit, You have a Layer 3 VPN connecting Site 1, Site 2, and Site 3. Site 1 and Site 3 have a backdoor IBGP connection. You must meet these requirements:

  1.

  Ensure that PE2 does not advertise the routes learned from PE1 to CE3.

  2.

  Ensure that PE1 does not advertise the routes learned from PE2 that originated from CE3.

  3.

  All routes must be present in Site 2.

  Which two statements meet these requirements? (Choose two.)

  A. Use a unique origin community on each PE and tag the appropriate BGP routes when importing them from the local CE devices.

  B. Use a unique origin community on each PE and tag the appropriate BGP routes when exporting them to the connected CE devices.

  C. Use an export policy that matches routes with the remote origin community and blocks these routes from being advertised to the connected CE devices.

  D. Use a VRF import policy that matches the routes with the remote origin community and blocks these routes from being accepted.

  Correct Answer: AC

• Question 6:

  -- Exhibit -- Exhibit -Click the Exhibit button. Referring to the exhibit, which two configuration steps must be implemented so that LSPs will be able to

  

  use link protection from R1 to R3? (Choose two.)

  A. Configure each eligible interface for link protection.

  B. Configure each eligible router's protocol RSVP for fast reroute.

  C. Configure each eligible router's protocol MPLS for link protection.

  D. Configure each eligible LSP for link protection.

  Correct Answer: AD

• Question 7:

  -- Exhibit

  

  -- Exhibit -

  Click the Exhibit button.

  Referring to the exhibit, your network contains eight devices participating in OSPF Area 0, and they are all in a full IBGP mesh. R7 is learning the 172.27.0.0/24 network and is injecting this route into OSPF and BGP. You must ensure that on R2, all traffic destined to the 172.27.0.0/24 network from R1 uses the R2to-R7 RSVP LSP through your core network.

  How should you accomplish this behavior?

  A. Use the install active feature on R2.

  B. Use the install feature on R2.

  C. Use OSPF and BGP import policies on R2.

  D. Use OSPF and BGP export policies on R2.

  Correct Answer: A

• Question 8:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button. You have an established RSVP LSP from R1 to R4. As shown in the exhibit, you experience a link failure

  between R2 and R3.

  Which two statements are correct? (Choose two.)

  A. R2 will send a PathTear message upstream to R1, indicating a failure has occurred.

  B. R3 will send a PathTear message downstream to R4, indicating a failure has occurred.

  C. R3 will send a ResvTear message downstream to R4, indicating a failure has occurred.

  D. R2 will send a ResvTear message upstream to R1, indicating a failure has occurred.

  Correct Answer: BD

• Question 9:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button. Your network has multiple LSPs between Router A and Router B, as shown in the exhibit. You add a new

  LSP between these routers with the following parameters: LSP5: 20 Mbps; Priority 2 2 Assuming no link has 20 Mbps available, which LSPs are candidates for preemption by LSP5? (Choose

  two.)

  A. LSP1

  B. LSP2

  C. LSP3

  D. LSP4

  Correct Answer: CD

• Question 10:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button.

  Your network has multiple LSPs between Router A and Router B, as shown in the exhibit. You add a new

  LSP between these routers with the following parameters:

  LSP5: 20 Mbps; Priority 4 3

  Assuming no link has 20 Mbps available, which LSP will be preempted by LSP5?

  A. LSP1

  B. LSP2

  C. LSP3

  D. LSP4

  Correct Answer: D