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JN0-649 Reliable Dumps Questions & JN0-649 Examcollection Questions Answers

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To be eligible for the JNCIP-ENT exam, candidates should have a minimum of three years of experience in enterprise networking, preferably with experience in Juniper Networks technologies. They should have a good understanding of various networking technologies and protocols, and they should have completed the Juniper JNCIS-ENT (Enterprise Routing and Switching, Specialist) certification.

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Juniper Enterprise Routing and Switching, Professional (JNCIP-ENT) Sample Questions (Q57-Q62):

NEW QUESTION # 57
Which statement is correct about MSTP?

A. MSTP dynamically manages VLAN registration in a LAN
B. MSTP enables mapping multiple independent spanning tree instances onto one physical topology
C. MSTP uses slacked VLAN tags to extend a Layer 2 Ethernet connection between multiple sites
D. MSTP enables dynamic discovery of Layer 2 neighbors.

Answer: B

NEW QUESTION # 58
Which three configuration parameters must match on all switches within the same MSTP region? (Choose three.)

A. bridge priority
B. VLAN to instance mapping
C. region name
D. configuration name
E. revision level

Answer: B,C,E

Explanation:
When enabling MSTP, you define one or more MSTP regions. An MSTP region defines a logical domain where multiple spanning-tree instances (MSTIs) can be administered independently of MSTIs in other regions, setting the boundary for bridge protocol data units (BPDUs) sent by one MSTI. An MSTP region is a group of switches that is defined by three parameters:
Region name-User-defined alphanumeric name for the region.
Revision level-User-defined value that identifies the region.
Mapping table-Numerical digest of VLAN-to-instance mappings.
https://www.juniper.net/documentation/us/en/software/junos/stp-l2/topics/topic-map/spanning-tree-configuring-mstp.html

NEW QUESTION # 59
When redistributing IGP routes into BGP. what information .s used by default on Junos platforms to determine the BGP route's MED attribute value?

A. routing information base
B. the IGP Metric
C. route protocol source
D. the IGP route preference

Answer: B

NEW QUESTION # 60
You enable the Multiple VLAN Registration Protocol (MVRP) to automate the creation and management of virtual LANs.
Which statement is correct in this scenario?

A. The forbidden mode does not register or declare VLANs.
B. Timers dictate when link state changes are propagated.
C. When enabled, MVRP affects all interfaces.
D. MVRP works with RSTP and VSTP.

Answer: C

NEW QUESTION # 61
You are implementing the route summarization feature of OSPF.
Which two results do you achieve in this scenario? (Choose two.)

A. It helps in migrating to future multi-area OSPF network designs.
B. It provides optimal routing in the network.
C. It reduced the routing table size, enabling devices to store and process less information.
D. It reduces the impact of topology changes on a device.

Answer: C,D

Explanation:
OSPF Route Summarization Benefits:
* Reduces Routing Table Size: By summarizing routes, multiple specific routes are combined into a single route. This reduces the number of entries in the routing table, making it more efficient and easier for the devices to process. This is critical in large networks to maintain performance and manageability.
* Reduces Impact of Topology Changes: When a topology change occurs in one of the summarized routes, it does not need to propagate throughout the entire network. Only the summary route may need to be updated, which minimizes the impact and limits the scope of updates needed.
Implementation in OSPF:
* Configuration Example:
shell
Copy code
set protocols ospf area 0.0.0.0 range 10.1.0.0/16
* This command summarizes the routes in area 0.0.0.0 to a single route of 10.1.0.0/16.
References:
* The documents provided, such as "network-mgmt.pdf" and other relevant configuration guides, emphasize these benefits as fundamental to efficient OSPF deployment.

NEW QUESTION # 62
......

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Jack Reed Jack Reed

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