A Junos router is forwarding transit traffic. The PFE performs a route lookup and finds a route in the forwarding table. However, the next hop is a 'reject' next hop. What happens to the packet?

The packet is dropped silently without any notification to the source.

The packet is forwarded to the next hop specified in the routing table.

The packet is forwarded to the Routing Engine for further processing.

The packet is discarded, and an ICMP unreachable message may be sent to the source.

What is the key difference between transit traffic and local traffic?

Transit traffic is processed by the Routing Engine, while local traffic is processed by the PFE

Transit traffic is forwarded through the device, while local traffic is destined to or originated from the device

Transit traffic is always IPv4, while local traffic is IPv6

Transit traffic is always encrypted, while local traffic is not

A Junos router receives a transit packet. The PFE performs a route lookup and finds a matching entry in the forwarding table. What information does the PFE obtain from this lookup to forward the packet?

The MTU and the CoS rewrite rules for the egress interface

The next-hop IP address and the egress interface

The complete AS path and BGP attributes for the route

The source MAC address and the ingress interface

What is the primary role of the Packet Forwarding Engine (PFE) in a Junos device?

To forward transit traffic using the forwarding table

To run routing protocols and maintain the routing table

To store the configuration and log files

To provide management interfaces for the device

Juniper NetworksCertified Associate, Junos

Domain 2Objective 4

Transit Traffic Processing JN0-105 Practice Questions (Page 1)

Part of the Junos OS Fundamentals domain, which makes up ~14% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~5–8 in this domain), expect 1–2 from this objective — we provide 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

8concepts

Questions 1–5

1foundation · easy
Which table does the Junos kernel use to make forwarding decisions for transit traffic?
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2expert · medium
A Junos router is forwarding transit traffic. The PFE performs a route lookup and finds a route in the forwarding table. However, the next hop is a 'reject' next hop. What happens to the packet?
Select an answer first
3foundation · easy
What is the key difference between transit traffic and local traffic?
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4application · medium
A Junos router receives a transit packet. The PFE performs a route lookup and finds a matching entry in the forwarding table. What information does the PFE obtain from this lookup to forward the packet?
Select an answer first
5foundation · easy
What is the primary role of the Packet Forwarding Engine (PFE) in a Junos device?
Select an answer first

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