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

Forwarding packets at high speed

Storing the device configuration

What happens to packet forwarding if the Routing Engine (RE) fails in a Junos device?

Packet forwarding continues using the existing forwarding table

Packet forwarding stops immediately

The device reboots automatically

How does Junos separate the control and forwarding planes?

By running all processes in a single process space

By using a single CPU for all tasks

By using separate operating systems for each plane

By using separate hardware components and a clean interface between them

What is the purpose of graceful restart in Junos?

To allow forwarding to continue while routing protocols restart

To restart the device without losing configuration

To upgrade the Junos OS without interruption

Juniper NetworksCertified Associate, Junos

Domain 2Objective 2

Control and Forwarding Planes 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 33 practice questions to prepare you well beyond it. (estimate)

33questions here

7free pages

10concepts

Questions 21–25

21application · easy
A Junos router is configured with multiple routing protocols. The network team wants to know which process is responsible for maintaining the routing table. Which process is responsible?
Select an answer first
22foundation · easy
What is the primary role of the Packet Forwarding Engine (PFE) in Junos?
Select an answer first
23foundation · easy
What happens to packet forwarding if the Routing Engine (RE) fails in a Junos device?
Select an answer first
24foundation · easy
How does Junos separate the control and forwarding planes?
Select an answer first
25foundation · easy
What is the purpose of graceful restart in Junos?
Select an answer first

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