Juniper Juniper Certifications JN0-660 Questions & Answers

• Question 21:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button. The exhibit displays an IS-IS topology and IS-IS configuration for R1, R2, and R3. R3 is redistributing the

  10.100.100.0/24 route into IS-IS as an external IS-IS route. However, the 10.100.100.0/24 route is

  automatically being leaked into Area 49.2222.

  How do you stop the automatic route leaking of the 10.100.100.0/24 prefix?

  A. Remove the level 1 wide-metrics-only statement from R3.

  B. Remove the level 1 wide-metrics-only statement from R2.

  C. Remove the level 2 wide-metrics-only statement from R2.

  D. Remove the level 2 wide-metrics-only statement from R1.

  Correct Answer: A

• Question 22:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button. Each router in the exhibit is receiving three copies of the same IS-IS LSP from the other three routers in

  the topology. The additional copies of the IS-IS LSPs are causing additional processing overhead on each router. You want to reduce the overhead required to process the additional copies of the same IS-IS LSP. Which feature accomplishes this task?

  A. Configure traffic engineering.

  B. Configure mesh groups.

  C. Lower the CSNP interval.

  D. Increase the SPF delay.

  Correct Answer: B

• Question 23:

  -- Exhibit -user@router> show route receive-protocol rip 2.2.2.2

  inet.0: 15 destinations, 15 routes (15 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both

  50.50.0.0/26 *[RIP/100] 00:09:12, metric 2, tag 0 > to 2.2.2.2 via fe-3/0/0.2 50.50.1.0/24 *[RIP/100] 00:32:24, metric 2, tag 0 > to 2.2.2.2 via fe-3/0/0.2 50.50.2.0/24 *[RIP/100] 00:32:24, metric 2, tag 0 > to 2.2.2.2 via fe-3/0/0.2 50.50.3.0/25 *[RIP/100] 00:32:24, metric 2, tag 0 > to 2.2.2.2 via fe-3/0/0.2

  50.50.4.0/25 *[RIP/100] 00:32:24, metric 2, tag 0 > to 2.2.2.2 via fe-3/0/0.2 50.50.4.128/25 *[RIP/100] 00:32:24, metric 2, tag 0 > to 2.2.2.2 via fe-3/0/0.2 50.50.5.0/26 *[RIP/100] 00:32:24, metric 2, tag 0 > to 2.2.2.2 via fe-3/0/0.2 50.50.5.64/26 *[RIP/100] 00:32:24, metric 2, tag 0 > to 2.2.2.2 via fe-3/0/0.2 50.50.5.128/26 *[RIP/100] 00:32:24, metric 2, tag 0 > to 2.2.2.2 via fe-3/0/0.2 -- Exhibit -

  Click on the Exhibit button.

  Referring to the exhibit, how should an export policy be configured to export only the 50.50.1.0/24 RIP summary route into OSPF?

  A. [edit policy-options policy-statement RIP-redist] user@router# show term 1 { from { protocol rip; route-filter 50.50.1.0/24 exact; } then accept; } term 2 { from { protocol rip; route-filter 50.50.0.0/24 upto /27; } then reject; } term 3 { from protocol rip; then accept; }

  B. [edit policy-options policy-statement RIP-redist] user@router# show term 1 { from { protocol rip; route-filter 50.50.0.0/24 upto /27; } then reject; } term 2 { from { protocol rip; route-filter 50.50.1.0/24 exact; } then accept; } term 3 { from protocol rip; then accept; }

  C. [edit policy-options policy-statement RIP-redist] user@router# show term 1 { from { protocol rip; route-filter 50.50.0.0/16 prefix-length-range /24-/26; } then reject; } term 2 {

  from {

  protocol rip;

  route-filter 50.50.1.0/24 exact;

  }

  then accept;

  }

  D. [edit policy-options policy-statement RIP-redist] user@router# show term 1 { from { protocol rip; route-filter 50.50.1.0/24 exact; } then accept; } term 2 { from { protocol rip; route-filter 50.50.0.0/16 prefix-length-range /24-/26; } then reject; }

  Correct Answer: D

• Question 24:

  -- Exhibit -- Exhibit -

  

  Click the Exhibit button.

  In the exhibit, an OSPF virtual link is established between R2 and R3. However, R4 cannot reach any external destinations.

  What must you do you allow R4 to reach external destinations?

  A. Area 1 must be configured as a stub area.

  B. Area 1 must be configured as a standard OSPF area.

  C. Area 1 must be configured to use the Type 3 LSAs as the default LSA.

  D. The virtual link must be configured under Area 1.

  Correct Answer: B

• Question 25:

  -- Exhibit

  

  -- Exhibit -Click the Exhibit button.

  In the exhibit, you must configure an OSPF virtual link between R2 and R3 to facilitate communication

  between Area 0 and Area 2.

  Which two addresses should you use as the neighbor IDs of the virtual link endpoints? (Choose two.)

  A. The address that is associated with R2's router ID.

  B. The address that is associated with R2's ge-0/0/0 interface.

  C. The address that is associated with R3's router ID.

  D. The address that is associated with R3's ge-0/0/1 interface.

  Correct Answer: AC

• Question 26:

  -- Exhibit

  [edit protocols ospf area 0.0.0.2]

  user@router# show

  area-range 0.0.0.0/1 restrict;

  interface ge-0/0/1.0;

  -- Exhibit -

  Click the Exhibit button.

  You have an OSPF area configured as shown in the exhibit.

  Which two statements are true? (Choose two.)

  A. The 30.0.0.0/8 prefix will not be advertised to Area 0 as a Type 3 LSA.

  B. The 200.0.0.0/8 prefix will not be advertised to Area 0 as a Type 3 LSA.

  C. To be effective, the configuration must be used on an ASBR router.

  D. To be effective, the configuration must be used on an ABR router.

  Correct Answer: AD

• Question 27:

  You are asked to share a customer's routes between two separate Layer 3 VPNs. The VPNs must remain separate. None of the shared routes should be sent to the remote PE devices.

  Which two configuration elements are used to meet these requirements? (Choose two.)

  A. auto-export

  B. export-rib

  C. [edit policy-options policy-statement vpnb-export] user@router# show term 1 { from { protocol bgp; interface ge-0/0/1.0; } then { community add vpnb-target; accept; } } term 2 { then reject; }

  D. [edit policy-options policy-statement vpnb-export] user@router# show term 1 { from { protocol bgp; interface ge-0/0/1.0; } then { community add vpnb-target; accept; } }

  Correct Answer: AC

• Question 28:

  How would you copy the BGP prefix 192.168.42.0/24 from VRF-A.inet.0 to VRF-B.inet.0?

  A. Use a VRF import policy on the destination VRF to match the desired prefix.

  B. Use an import policy on the BGP neighbor configured with family inet-vpn to add a target community that VRF-B imports.

  C. Use a VRF export policy in VRF-A to copy the route from the source VRF to the destination VRF.

  D. Use a RIB group policy to copy the route from the bgp.l3vpn.0 table to the VRF-B.inet.0 table.

  Correct Answer: B

• Question 29:

  You have a Layer 3 VPN established between Site 1 and Site 2. You are asked to limit the number of OSPF routes that the PE devices will accept from the CEs.

  Which statement is correct?

  A. You should use the prefix-limit feature to limit the number of accepted routes.

  B. You should use the allow feature to limit the accepted routes.

  C. You should use the route-target filtering feature to limit the accepted routes.

  D. You should use the maximum-prefixes feature to limit the number of accepted routes.

  Correct Answer: D

• Question 30:

  You are asked to provide redundancy to avoid a single point of failure for your route reflector cluster groups.

  Which action will accomplish this task?

  A. Configure unique cluster IDs for each client within a route reflector cluster group.

  B. Configure two route reflectors for each route reflector cluster group.

  C. Configure a full IBGP peer mesh between clients within the route reflector cluster group.

  D. Configure the no-client-reflect parameter on the route reflector.

  Correct Answer: B