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[General] JN0-664 Quiz Practice Materials - JN0-664 Quiz Torrent & JN0-664 Test Bootca

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【General】 JN0-664 Quiz Practice Materials - JN0-664 Quiz Torrent & JN0-664 Test Bootca

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The JN0-664 Exam Tests the candidate's skills in configuring and troubleshooting Juniper Networks' service provider routing and switching platforms. JN0-664 exam covers a wide range of topics, including advanced routing protocols, multicast, and VPNs. Candidates will be tested on their ability to configure and troubleshoot Juniper Networks' routers and switches, as well as their knowledge of protocols such as OSPF, BGP, and IS-IS.
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Juniper Service Provider, Professional (JNCIP-SP) Sample Questions (Q10-Q15):NEW QUESTION # 10
When building an interprovider VPN, you notice on the PE router that you have hidden routes which are received from your BGP peer with family inet labeled-unica3t configured.
Which parameter must you configure to solve this problem?
  • A. Under the protocols mpls hierarchy, add the traffic-engineering parameter
  • B. Under the family inet labeled-unicast hierarchy, add the resolve-vpn parameter.
  • C. Under the family inet labeled-unicast hierarchy, add the explicit null parameter.
  • D. Under the protocols ospf hierarchy, add the traffic-engineering parameter.
Answer: B
Explanation:
Explanation
The resolve-vpn parameter is a BGP option that allows a router to resolve labeled VPN-IPv4 routes using unlabeled IPv4 routes received from another BGP peer with family inet labeled-unicast configured. This option enables interprovider VPNs without requiring MPLS labels between ASBRs or using VRF tables on ASBRs. In this scenario, you need to configure the resolve-vpn parameter under [edit protocols bgp group external family inet labeled-unicast] hierarchy level on both ASBRs.

NEW QUESTION # 11
Exhibit

Click the Exhibit button-Referring to the exhibit, which two statements are correct about BGP routes on R3 that are learned from the ISP-A neighbor? (Choose two.)
  • A. By default, the next-hop value for these routes is not changed by ISP-A before being sent to R3.
  • B. The BGP local-preference value that is used by ISP-A is not advertised to R3.
  • C. The next-hop value for these routes is changed by ISP-A before being sent to R3.
  • D. All BGP attribute values must be removed before receiving the routes.
Answer: B,C
Explanation:
Analyzing the Exhibit
The diagram represents BGP peering between:
AS 65512 (Enterprise Network)
AS 65511 (ISP-A)
R3 and R4 are peering with ISP-A using EBGP.
R1, R2, R3, and R4 are peering within AS 65512 using IBGP.
Understanding BGP Route Behavior
Option A: "By default, the next-hop value for these routes is not changed by ISP-A before being sent to R3." ❌ Incorrect!
EBGP behavior: When a BGP route is advertised via EBGP, the next-hop IP is changed to the router's own IP by default.
Since ISP-A is advertising routes via EBGP to R3, the next-hop is changed to ISP-A's IP.
Thus, this statement is incorrect.
Option B: "The BGP local-preference value that is used by ISP-A is not advertised to R3." ✅ Correct!
BGP Local Preference (LOCAL_PREF) is an IBGP-only attribute.
Local Preference is NOT shared over EBGP because it is used within an AS to influence route selection.
ISP-A will not send LOCAL_PREF to R3, as R3 is in a different AS.
Thus, this statement is correct.
Option C: "All BGP attribute values must be removed before receiving the routes." ❌ Incorrect!
BGP does not remove all attributes when advertising routes. Some attributes are modified (e.g., next-hop, AS-PATH), but others (like MED, community) may be preserved.
Thus, this statement is incorrect.
Option D: "The next-hop value for these routes is changed by ISP-A before being sent to R3." ✅ Correct!
As per default EBGP behavior, the next-hop is changed when a route is advertised to an EBGP peer.
This means ISP-A changes the next-hop to its own IP before sending it to R3.
Thus, this statement is correct.
Final answer:
✅ B. The BGP local-preference value that is used by ISP-A is not advertised to R3.
✅ D. The next-hop value for these routes is changed by ISP-A before being sent to R3.
Verification from Juniper Documentation:
Juniper BGP Configuration Guide confirms that LOCAL_PREF is not advertised over EBGP.
RFC 4271 (BGP-4) specifies that next-hop is changed by default when advertising routes via EBGP.

NEW QUESTION # 12
Which two statements are true about the OSPF adjacency displayed in the exhibit? (Choose two.)

  • A. There is a mismatch in the poll interval parameter between routers R1 and R2.
  • B. There is a mismatch in the hello Interval parameter between routers R1 and R2.
  • C. There is a mismatch in the dead interval parameter between routers R1 and R2.
  • D. There is a mismatch in the OSPF hold timer parameter between routers R1 and R2.
Answer: B,C

NEW QUESTION # 13
Exhibit

Which two statements about the output shown in the exhibit are correct? (Choose two.)
  • A. The PE router has the capability to pop flow labels
  • B. There has been a VLAN ID mismatch.
  • C. The connection has not flapped since it was initiated.
  • D. The PE is attached to a single local site.
Answer: C,D
Explanation:
The output is from the show l2vpn connections command on a Juniper router. This command is used to verify the status of Layer 2 VPN (L2VPN) pseudowires between Provider Edge (PE) routers.
Breakdown of Key Information:
* Instance: vpn-A
* This is the L2VPN instance being monitored.
* Connection Status (St)
* The connection status is "Up", meaning the pseudowire is operational.
* Local Site: CE1-2 (2)
* The PE router is attached to a single local site (CE1-2).
* Uptime & Connection Flaps
* The output shows the last time the connection was up:
Time last up: Apr 11 14:35:27 2020
* The "# Up trans" value is 1, meaning this connection has been established once and has not flapped since it was initiated.
* VLAN ID Mismatch Check
* The legend includes "VM - VLAN ID mismatch", but this status is not present in the connection output.
* This means there is NO VLAN ID mismatch.
* Flow Labels
* The Flow Label Transmit is No, and the Flow Label Receive is No.
* This means the PE router does NOT have the capability to pop flow labels.

NEW QUESTION # 14
You have an EVI implemented between PE-1, PE-2, and PE-3 to allow communication between CE-1 and CE-2. CE-2 receives unicast traffic from CE-1 on both links to PE-2 and PE-3. When CE-1 sends broadcast traffic. CE-2 receives it on only one of the multihomed links.
Referring to the exhibit, which EVPN route type enables this behavior?

  • A. Type 2
  • B. Type 1
  • C. Type 4
  • D. Type 3
Answer: C

NEW QUESTION # 15
......
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