A network engineer is configuring CoS on a Junos router. They want to ensure that voice traffic is prioritized over bulk data traffic on the egress interface. Which egress processing function is responsible for this prioritization?

The encapsulation process, which adds priority bits to the packet header

The output firewall filter, which can prioritize traffic based on packet contents

CoS scheduling, which determines the order and amount of bandwidth allocated to each queue

CoS classification, which marks packets with the appropriate forwarding class

A service provider is deploying a new Junos router to handle high-volume transit traffic. The router must forward packets at line rate with minimal latency. Which component is primarily responsible for achieving this performance?

The Packet Forwarding Engine using specialized ASICs

The Routing Engine using its high-speed CPU

The input firewall filters configured on the ingress interface

The forwarding table stored in the Routing Engine's memory

What happens to a transit packet that fails an input firewall filter during ingress processing?

It is forwarded to the Routing Engine for further inspection

It is encapsulated and sent out the egress interface

It is sent back out the ingress interface

A Junos router is forwarding transit traffic between two interfaces. The PFE receives a packet on ge-0/0/0 and performs a route lookup. The lookup returns a next hop of 192.0.2.1 via interface ge-0/0/1. What must the PFE do to forward this packet?

Resolve the next-hop IP address to a MAC address and encapsulate the packet for transmission on ge-0/0/1.

Drop the packet because the next-hop IP address is not a local interface.

Encapsulate the packet with the next-hop IP address as the destination MAC address.

Send the packet to the Routing Engine to perform the ARP resolution and then forward it.

Juniper NetworksCertified Associate, Junos

Domain 2Objective 4

Transit Traffic Processing JN0-105 Practice Questions (Page 5)

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 21–24

21application · medium
A network engineer is configuring CoS on a Junos router. They want to ensure that voice traffic is prioritized over bulk data traffic on the egress interface. Which egress processing function is responsible for this prioritization?
Select an answer first
22application · easy
A service provider is deploying a new Junos router to handle high-volume transit traffic. The router must forward packets at line rate with minimal latency. Which component is primarily responsible for achieving this performance?
Select an answer first
23foundation · easy
What happens to a transit packet that fails an input firewall filter during ingress processing?
Select an answer first
24expert · medium
A Junos router is forwarding transit traffic between two interfaces. The PFE receives a packet on ge-0/0/0 and performs a route lookup. The lookup returns a next hop of 192.0.2.1 via interface ge-0/0/1. What must the PFE do to forward this packet?
Select an answer first

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