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Question 50 - JN0-105 discussion

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Exhibit

policy-options { policy-statement Load-Balance-Policy { term Load-Balance { then { load-balance per-flow; accept;

}

}

}

}

routing-options {

router-id 192.168.100.11; autonomous-system 65201; forwarding-table {

export Load-Balance-Policy;

Referring to the exhibit, which two statements are correct? (Choose two.)

A.
The policy enables equal cost load balancing in the forwarding table.
Answers
A.
The policy enables equal cost load balancing in the forwarding table.
B.
The policy must be applied under the protocols hierarchy.
Answers
B.
The policy must be applied under the protocols hierarchy.
C.
The policy enables per-packet load balancing.
Answers
C.
The policy enables per-packet load balancing.
D.
The policy enables flow-based load balancing.
Answers
D.
The policy enables flow-based load balancing.
Suggested answer: A

Explanation:

The load-balance per-flow statement in the Junos OS policy-options configuration enables flow-based load balancing in the forwarding table. This means that the traffic is distributed across multiple paths based on flows, where a flow is typically identified by attributes such as source and destination IP addresses, and possibly layer 4 information like TCP/UDP ports. This allows for more granular and efficient utilization of available paths, avoiding overloading a single path. The policy does not enable per-packet load balancing, which would send individual packets of the same flow over different paths, potentially causing out-of-order delivery issues. The policy's placement in the forwarding-table export suggests it's intended to influence forwarding behavior, not just routing protocol decisions, and does not necessarily have to be applied under the protocols hierarchy.

asked 18/09/2024
Franco Santos
38 questions
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