JN0-349 Exam Details

  • Exam Code
    :JN0-349
  • Exam Name
    :Enterprise Routing and Switching, Specialist (JNCIS-ENT)
  • Certification
    :Juniper Certifications
  • Vendor
    :Juniper
  • Total Questions
    :110 Q&As
  • Last Updated
    :Jul 14, 2026

Juniper JN0-349 Online Questions & Answers

  • Question 91:

    Which two statements about RSTP are correct? (Choose two.)

    A. RSTP is backward compatible with STP.
    B. RSTP permits multiple root bridges within a Layer 2 domain.
    C. RSTP permits only a single root bridge within a Layer 2 domain.
    D. RSTP is not backward compatible with STP.

  • Question 92:

    What is the default route preference for BGP?

    A. 150
    B. 167
    C. 170
    D. 179

  • Question 93:

    What BGP attribute is mostly likely to influence a remote AS that you do not peer with?

    A. This is not possible given the local scope of BGP
    B. AS path
    C. MED
    D. Local preference

  • Question 94:

    Click the Exhibit button.

    You have created a GRE tunnel as shown in the exhibit. The router with tunnel endpoint A is dropping the packets originating from User A and destined to User B. What would cause this problem?

    A. Endpoint A has the internet-options gre-path-mtu-discovery parameter enabled.
    B. User A requested fragmentation and Endpoint A has the clear-dont-fragment-bit parameter enabled.
    C. Endpoint A is missing a policy statement that allows User A's traffic into the tunnel.
    D. User A is sending maximum size default Ethernet frames with the DF bit enabled.

  • Question 95:

    Which statement is true about IP-IP tunnels?

    A. The time-to-live value of the original packet Is decremented.
    B. IP-IP tunnels are protocol agnostic.
    C. The packet is encapsulated unchanged before entering the tunnel
    D. The packet header is replaced before entering the tunnel

  • Question 96:

    Click the Exhibit button.

    Why is the route shown in the exhibit hidden?

    A. The router cannot reach the protocol next hop.
    B. An MPLS LSP is unavailable.
    C. The router is being rejected through an import policy.
    D. The route is being rejected through an export policy.

  • Question 97:

    Click the Exhibit button.

    Referring to the exhibit, what does the asterisk(*) following the ge-0/0/5.0 interface indicate?

    A. It indicates the interface is not active.
    B. It indicates the interface is a trunk port.
    C. It indicates the interface is an access port.
    D. It indicates the interface is active.

  • Question 98:

    You do not want any spanning tree protocols operating in your environment, and you want to ensure that no BPDUs can be introduced into the environment. Which statement is true in this scenario?

    A. You must run a spanning tree protocol to block BPDUs.
    B. Incoming BPDUs are blocked by default if a spanning tree protocol is not operating.
    C. You can block BPDUs without running a spanning tree protocol using Layer 3 control.
    D. Incoming BPDUs can only be blocked by the root bridge.

  • Question 99:

    Exhibit.

    Referring to the exhibit, why is the route for 10.5.5.5 hidden?

    A. It is an L3VPN route.
    B. The next hop cannot be resolved.
    C. It has an invalid community.
    D. It is a Martian route.

  • Question 100:

    What are two Layer 2 firewall filter types? (Choose two.)

    A. port-based
    B. packet-based
    C. flow-based
    D. VLAN-based

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