Junos Software Architecture JN0-105 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   When a data packet arrives at a Junos device, what is the typical path it takes?

   • AIt is dropped unless the RE explicitly approves it.
   • BIt enters through an interface on the PFE, is forwarded based on the forwarding table, and exits through another interface.
   • CIt is copied to the RE for route lookup, then forwarded.
   • DIt is processed by the RE first, then sent to the PFE for forwarding.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   What is the role of the Junos kernel in the software architecture?

   • AIt runs the CLI and accepts user commands.
   • BIt provides a platform for user-space processes to run and manages system resources.
   • CIt compiles the routing table into the forwarding table.
   • DIt directly forwards packets between interfaces.
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   Which function is performed by the control plane in Junos OS?

   • AApplying firewall filters to packets in transit.
   • BForwarding packets based on the forwarding table.
   • CRunning routing protocols like OSPF and BGP.
   • DPerforming rate limiting on incoming traffic.
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   Which component of a Junos device is responsible for running the Junos OS and managing the chassis?

   • AFlexible PIC Concentrator (FPC).
   • BPacket Forwarding Engine (PFE).
   • CPhysical Interface Card (PIC).
   • DRouting Engine (RE).
   Reveal Solution Discussion Select an answer first
6. 10expert · hard

   A Junos router is experiencing high CPU utilization on the Routing Engine. The network engineer suspects that a large number of packets are being sent to the RE for processing. Which type of traffic is most likely causing this issue?

   • AControl traffic such as OSPF hello packets
   • BBroadcast traffic on a local subnet
   • CTraffic that matches a firewall filter
   • DTransit traffic destined to a remote network
   Reveal Solution Discussion Select an answer first