JUNIPER JN0-664 EXAMCOLLECTION FREE DUMPS & AUTHORIZED JN0-664 TEST DUMPS

Juniper JN0-664 Examcollection Free Dumps & Authorized JN0-664 Test Dumps

Juniper JN0-664 Examcollection Free Dumps & Authorized JN0-664 Test Dumps

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The JN0-664 exam covers a wide range of topics, including OSPF, IS-IS, BGP, MPLS, VPNs, and multicast protocols. JN0-664 exam is intended for individuals who have a strong understanding of networking technologies and have experience working with Juniper Networks products. Passing the JN0-664 exam is a significant achievement for networking professionals and is recognized by employers as a valuable credential that demonstrates a high level of expertise in service provider networking.

Juniper JN0-664 (Service Provider, Professional (JNCIP-SP)) Exam is designed to test the knowledge and skills of professionals working in the service provider industry. JN0-664 exam covers a range of topics related to Juniper Networks’ service provider technologies and solutions, including routing, switching, security, and troubleshooting.

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Juniper Service Provider, Professional (JNCIP-SP) Sample Questions (Q25-Q30):

NEW QUESTION # 25
Exhibit

Referring to the exhibit, PE-1 and PE-2 are getting route updates for VPN-B when neither of them service that VPN Which two actions would optimize this process? (Choose two.)

  • A. Configure the resolution rib bgp.l3vpn.O resolution-ribs inet. 0 Statement on the RR
  • B. Configure the resolution rib bgp . 13vpn . 0 resolution-ribs inet. 0 Statement on the PEs.
  • C. Configure the family route-target statement on the PEs.
  • D. Configure the family route-target statement on the RR

Answer: A,D

Explanation:
Explanation
BGP route target filtering is a technique that reduces the number of routers that receive VPN routes and route updates, helping to limit the amount of overhead associated with running a VPN. BGP route target filtering is based on the exchange of the route-target address family, which contains information about the VPN membership of each PE device. Based on this information, a PE device can decide whether to accept or reject VPN routes from another PE device.
BGP route target filtering can be configured on PE devices or on route reflectors (RRs). Configuring BGP route target filtering on RRs is more efficient and scalable, as it reduces the number of BGP sessions and updates between PE devices. To configure BGP route target filtering on RRs, the following steps are required:
* Configure the family route-target statement under the BGP group or neighbor configuration on the RRs.
This enables the exchange of the route-target address family between the RRs and their clients (PE devices).
* Configure the resolution rib bgp.l3vpn.0 resolution-ribs inet.0 statement under the routing-options configuration on the RRs. This enables the RRs to resolve next hops for VPN routes using the inet.0 routing table.
* Configure an export policy for BGP route target filtering under the routing-options configuration on the RRs. This policy controls which route targets are advertised to each PE device based on their VPN membership.


NEW QUESTION # 26
A router running IS-IS is configured with an ISO address of 49.0001.00a0.c96b.c490.00.
Which part of this address is the system ID?

  • A. 00a0.c96b.c490 is the system identifier.
  • B. c96b.c490 is the system identifier.
  • C. 0001.00a0.c96b.c490 is the system identifier.
  • D. c490 is the system identifier.

Answer: A

Explanation:
In IS-IS (Intermediate System to Intermediate System) routing, each router is identified by a unique ISO (International Organization for Standardization) address, also known as a Network Entity Title (NET). The NET consists of three parts:
1. **Area Identifier**: Indicates the area to which the router belongs.
2. **System Identifier**: Uniquely identifies the router within the area.
3. **NSAP Selector (NSEL)**: Typically set to 00 for a router, indicating the Network Service Access Point.
The format of the ISO address is `49.XXXX.YYYY.YYYY.ZZZZ.ZZZZ.00`, where:
- `49` is the AFI (Authority and Format Identifier) indicating a private address.
- `XXXX` is the Area Identifier.
- `YYYY.YYYY.YYYY` is the System Identifier.
- `ZZZZ.ZZZZ` is the NSAP Selector.
Given the address `49.0001.00a0.c96b.c490.00`:
- **Area Identifier**: `49.0001`
- **System Identifier**: `00a0.c96b.c490`
- **NSAP Selector**: `00`
**Explanation**:
- **A. 00a0.c96b.c490 is the system identifier**:
- Correct. The System Identifier in an ISO address is a 48-bit (6-byte) field used to uniquely identify the router. In this address, `00a0.c96b.c490` is the correct 6-byte System Identifier.
- **B. 0001.00a0.c96b.c490 is the system identifier**:
- Incorrect. This includes the Area Identifier as part of the System Identifier, which is not correct.
- **C. c96b.c490 is the system identifier**:
- Incorrect. This is only part of the System Identifier. The full System Identifier must be 6 bytes long.
- **D. c490 is the system identifier**:
- Incorrect. This is an incomplete and incorrect part of the System Identifier.
**Conclusion**:
The correct part of the address that represents the System Identifier is:
**A. 00a0.c96b.c490 is the system identifier.**
**References**:
- Juniper Networks Documentation on IS-IS: [IS-IS Configuration](https://www.juniper.net/documentation
/en_US/junos/topics/task/configuration/isis-configuring.html)
- ISO/IEC 10589, the IS-IS routing protocol standard.


NEW QUESTION # 27
Exhibit

You want to use both links between R1 and R2 Because of the bandwidth difference between the two links, you must ensure that the links are used as much as possible.
Which action will accomplish this goal?

  • A. Disable multipath.
  • B. Define a policy to tag routes with the appropriate bandwidth community.
  • C. Ensure that the metric-out parameter on the Gigabit Ethernet interface is higher than the 10 Gigibit Ethernet interface.
  • D. Enable per-prefix load balancing.

Answer: B

Explanation:
https://www.juniper.net/documentation/us/en/software/junos/sampling-forwarding-monitoring/bgp/topics/concep


NEW QUESTION # 28
Click the Exhibit button.

Referring to the exhibit, which statement is correct?

  • A. You cannot use the vrf-target and vrf-export statements in the same VRF.
  • B. VPN routes are exported with only the target:65512:1 route target
  • C. VPN routes are exported with the target:65512:1 and target:65512:2 route targets.
  • D. VPN routes with the target:65512:1 and target:65512:2 route targets are imported.

Answer: C

Explanation:
The exhibit shows the configuration of a VRF (Virtual Routing and Forwarding) instance on a Juniper PE router. Let's break down the key components:
VRF Configuration (VPN-A)
The instance type is VRF, meaning this is an L3VPN (Layer 3 VPN).
The routing instance contains a static route (10.1.0.0/16 next-hop 10.1.0.1).
The interface ge-0/0/2.0 is assigned to the VRF.
Route Distinguisher (RD): 172.17.20.1:1
VRF-Export Policy: vpn-a-export
VRF-Target: target:65512:1 (This defines which routes will be imported into the VRF).
VRF Export Policy (vpn-a-export)
The vpn-a-export policy adds two BGP communities (route targets) to exported VPN routes:
community add vpn-a-target;
community add vpn-m-target;
accept;
The vpn-a-target community corresponds to target:65512:1.
The vpn-m-target community corresponds to target:65512:2.
Policy-Options (Community Definitions)
community vpn-a-target members target:65512:1;
community vpn-m-target members target:65512:2;
This confirms that routes exported from this VRF will have BOTH target:65512:1 and target:65512:2.
Evaluating the Answer Choices
✅ Option A: "VPN routes are exported with the target:65512:1 and target:65512:2 route targets." The vpn-a-export policy explicitly adds both vpn-a-target (65512:1) and vpn-m-target (65512:2) to exported routes.
This is correct. ✅
❌ Option B: "You cannot use the vrf-target and vrf-export statements in the same VRF." This is incorrect.
Juniper allows the use of both vrf-target and vrf-export in the same VRF:
vrf-target is used for importing routes.
vrf-export defines export policies (which can add additional route targets).
This is incorrect. ❌
❌ Option C: "VPN routes with the target:65512:1 and target:65512:2 route targets are imported." The vrf-target target:65512:1; statement only controls importing routes.
The import policy does not include target:65512:2, so routes tagged with target:65512:2 alone would not be imported into this VRF.
This is incorrect. ❌
❌ Option D: "VPN routes are exported with only the target:65512:1 route target." The export policy (vpn-a-export) clearly adds both 65512:1 and 65512:2.
This is incorrect. ❌
Final answer:
✅ A. VPN routes are exported with the target:65512:1 and target:65512:2 route targets.
Verification from Juniper Documentation
Juniper MPLS L3VPN Configuration Guide confirms that vrf-target is used for importing, while vrf-export can be used for exporting multiple route targets.
Juniper Routing Policy Documentation states that export policies can add multiple BGP communities (route targets).
RFC 4364 (BGP/MPLS IP VPNs) defines the use of route targets for VPN route control.


NEW QUESTION # 29
You want Site 1 to access three VLANs that are located in Site 2 and Site 3. The customer-facing interface on the PE-1 router is configured for Ethernet-VLAN encapsulation.

What is the minimum number of L2VPN routing instances to be configured to accomplish this task?

  • A. 0
  • B. 1
  • C. 2
  • D. 3

Answer: C


NEW QUESTION # 30
......

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