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Juniper JN0-351 Exam Questions - Navigate Your Path to Success

The Juniper Enterprise Routing and Switching, Specialist (JN0-351) exam is a good choice for Juniper experienced networking professionals and if the candidate manages to pass Juniper Enterprise Routing and Switching, Specialist exam, he/she will earn Juniper Data Center Certification. Below are some essential facts for Juniper JN0-351 exam candidates:

  • In actual Juniper Enterprise Routing and Switching, Specialist (JN0-351) exam, a candidate can expect 65 Questions and the officially allowed time is expected to be around 90 Minutes.
  • TrendyCerts offers 65 Questions that are based on actual Juniper JN0-351 syllabus.
  • Our Juniper JN0-351 Exam Practice Questions were last updated on: Mar 10, 2025

Sample Questions for Juniper JN0-351 Exam Preparation

Question 1

Which two mechanisms are part of building and maintaining a Layer 2 bridge table? (Choose two.)

Correct : B, C

Option B is correct.Flooding is a mechanism used in Layer 2 bridging where the switch sends incoming packets to all its ports except for the port where the packet originated1.This is done when the switch doesn't know the destination MAC address or when the packet is a broadcast or multicast1.

Option C is correct.Learning is another mechanism used in Layer 2 bridging where the switch learns the source MAC addresses of incoming packets and associates them with the port on which they were received23.This information is stored in a MAC address table, also known as a bridge table23.

Option A is incorrect.Blocking is a state in Spanning Tree Protocol (STP) used to prevent loops in a network2.It's not a mechanism used in building and maintaining a Layer 2 bridge table2.

Option D is incorrect.Listening is also a state in Spanning Tree Protocol (STP) where the switch listens for BPDUs to make sure no loops occur in the network before transitioning to the learning state2.It's not a mechanism used in building and maintaining a Layer 2 bridge table2.


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Question 2

Which two statements are correct about using firewall filters on EX Series switches? (Choose two.)

Correct : A, C

Ais correct because you can deploy only stateless firewall filters on an EX Series switch.A stateless firewall filter is a filter that evaluates each packet individually based on the header information, such as source and destination addresses, protocol, and port numbers1.A stateless firewall filter does not keep track of the state or context of a packet flow, such as the sequence number, flags, or session information1.EX Series switches support only stateless firewall filters, which are also called access control lists (ACLs) or packet filters2.

Cis correct because you can apply firewall filters to both Layer 2 and Layer 3 traffic on an EX Series switch.Layer 2 traffic is traffic that is switched within a VLAN or a bridge domain, while Layer 3 traffic is traffic that is routed between VLANs or networks3.EX Series switches support three types of firewall filters: port (Layer 2) firewall filters, VLAN firewall filters, and router (Layer 3) firewall filters4. You can apply these filters to different interfaces and directions to control the traffic entering or exiting the switch.


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Juniper JN0-351