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Latest JN0-664 Braindumps Files - JN0-664 Learning Materials

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Juniper JN0-664 exam is a written exam and consists of 65 multiple-choice questions. The candidate has 120 minutes to complete the exam. JN0-664 Exam is available in English and is administered worldwide by Pearson VUE. The passing score for the exam is 65%.

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Juniper Service Provider, Professional (JNCIP-SP) Sample Questions (Q81-Q86):

NEW QUESTION # 81
Which two statements are true about the OSPF adjacency displayed in the exhibit? (Choose two.)

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

Answer: A,B

NEW QUESTION # 82
Exhibit

You are running a service provider network and must transport a customer's IPv6 traffic across your IPv4-based MPLS network using BGP You have already configured mpis ipv6-tunneling on your PE routers.
Which two statements are correct about the BGP configuration in this scenario? (Choose two.)

A. You must configure family inet6 unicaat between PE and CE routers.
B. You must configure family inet6 unicast between PE routers
C. You must configure family inet6 labcled-unicast between PE routers.
D. You must configure family inet6 add-path between PE and CE routers.

Answer: A,C

Explanation:
To transport IPv6 traffic over an IPv4-based MPLS network using BGP, you need to configure two address families: family inet6 labeled-unicast and family inet6 unicast. The former is used to exchange IPv6 routes with MPLS labels between PE routers, and the latter is used to exchange IPv6 routes without labels between PE and CE routers. The mpis ipv6-tunneling command enables the PE routers to encapsulate the IPv6 packets with an MPLS label stack and an IPv4 header before sending them over the MPLS network.

NEW QUESTION # 83
Exhibit

The network shown in the exhibit is based on IS-IS
Which statement is correct in this scenario?

A. The system IDofR1_2 is 192.168.16.1
B. The area address is two bytes.
C. The NSEL byte for Area 0001 is 00.
D. The routers are using unnumbered interfaces

Answer: C

Explanation:
Explanation
IS-IS is an interior gateway protocol that uses link-state routing to exchange routing information among routers within a single autonomous system. IS-IS uses two types of addresses to identify routers and areas:
system ID and area address. The system ID is a unique identifier for each router in an IS-IS domain. The system ID is 6 octets long and can be derived from the MAC address or manually configured. The area address is a variable-length identifier for each area in an IS-IS domain. The area address can be 1 to 13 octets long and is composed of high-order octets of the address. An IS-IS instance may be assigned multiple area addresses, which are considered synonymous. Multiple synonymous area addresses are useful when merging or splitting areas in the domain1. In this question, we have a network based on IS-IS with four routers (R1_1, R1_2, R2_1, and R2_2) belonging to area 0001. The area address for area 0001 is 49.0001. The NSEL byte for area 0001 is the last octet of the address, which is 01. The NSEL byte stands for Network Service Access Point Selector (NSAP Selector) and indicates the type of service requested from the network layer2. Therefore, the correct statement in this scenario is that the NSEL byte for area 0001 is 01.
References: 1:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_isis/configuration/xe-16/irs-xe-16-book/irs-ovrvw-cf.
2:
https://www.juniper.net/documentation/us/en/software/junos/is-is/topics/concept/is-is-routing-overview.html

NEW QUESTION # 84
You want to ensure that L1 IS-IS routers have only the most specific routes available from L2 IS-IS routers.
Which action accomplishes this task?

A. Configure the ignore-attached-bit parameter on all L1 routers
B. Configure all routers to allow wide metrics.
C. Configure all routers to be L1.
D. Configure the ignore-attached-bit parameter on all L2 routers.

Answer: A

Explanation:
Explanation
The attached bit is a flag in an IS-IS LSP that indicates whether a router is connected to another area or level (L2) of the network. By default, L2 routers set this bit when they advertise their LSPs to L1 routers, and L1 routers use this bit to select a default route to reach other areas or levels through L2 routers. However, this may result in suboptimal routing if there are multiple L2 routers with different paths to other areas or levels.
To ensure that L1 routers have only the most specific routes available from L2 routers, you can configure the ignore-attached-bit parameter on all L1 routers. This makes L1 routers ignore the attached bit and install all interarea routes learned from L2 routers in their routing tables.

NEW QUESTION # 85
Exhibit

Referring to the exhibit, which statement is true?

A. The 10.101.1 0/24 route will be shared if there are other VRFs that use the same route target community
B. The 10.101.1.0/24 route will be shared if the vrf-table-label parameter is configured.
C. The 10.101.1.0/24 route will only be shared if BGP is configured in the routing instance
D. The 10.101.1.0/24 route will be shared if the auto-export parameter is configured

Answer: D

Explanation:
The auto-export parameter is a routing option that allows a routing instance to share routes with other routing instances or the master routing table. The auto-export parameter automatically exports routes from one routing instance to another based on the route target communities attached to the routes. In this scenario, the
10.101.1.0/24 route will be shared if the auto-export parameter is configured under [edit routing-options] hierarchy level.

NEW QUESTION # 86
......

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