Enterprise Routing and Switching, Specialist (JNCIS-ENT) v1.0

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Exam contains 136 questions

You received an alert from your monitoring system that the master Routing Engine (RE) on an EX4300 switch in a virtual chassis has hardware issues and might need to be replaced. Because the switch already had graceful Routing Engine switchover (GRES) enabled and configured, you must perform a manual switchover to the backup RE to avoid disruption.
Which command would be used to perform the manual RE switchover?

  • A. Log in to the backup RE and issue the restart chassis-control operation command.
  • B. Log in to the master RE and issue the request chassis routing-engine master switch operation command.
  • C. Log in to the master RE and issue the request chassis routing-engine master acquire operation command.
  • D. Log in to the backup RE and issue the restart iccp-service operation command.


Answer : B

Click the Exhibit button.


You are asked to change the default behavior of your trunk port (ge-0/0/1) to now pass untagged traffic.
Which configuration would accomplish this task?

  • A. set interfaces ge-0/0/1 native-vlan-id 1 set interfaces ge-0/0/1 unit 0 family ethernet-switching interface mode trunk vlan members vlan.1
  • B. set interfaces ge-0/0/1 native-vlan-id 1 set interfaces ge-0/0/1 unit 0 family ethernet-switching interface mode trunk vlan members native
  • C. set interfaces ge-0/0/1 native-vlan-id 1 set interfaces ge-0/0/1 unit 0 family ethernet-switching interface mode trunk vlan members 1
  • D. set interfaces ge-0/0/1 native-vlan-id 1 set interfaces ge-0/0/1 unit 0 family ethernet-switching interface mode trunk vlan members native_v1


Answer : C

You are currently defining a new OSPF area. The area must advertise external routes but should not receive external routes from another area.
In this scenario, which type of area should you define?

  • A. stub
  • B. backbone
  • C. not-so-stubby
  • D. totally stubby


Answer : A

Click the Exhibit button.


Referring to the exhibit, which two statements are true? (Choose two.)

  • A. The device will not form adjacencies with devices in a different area.
  • B. The Level 2 database will be empty.
  • C. The IS-IS protocol is disabled on the device.
  • D. The device will not have a Level 2 database.


Answer : AB

Which static route next-hop value indicated that the packet will be silently dropped?

  • A. resolve
  • B. discard
  • C. reject
  • D. next-table


Answer : B

Explanation:
If the static route has a discard next hop it means that if a packet does not match a more specific route, the packet is rejected and a reject route for this destination is installed in the routing table, but Internet Control Message Protocol (ICMP) unreachable messages are not sent.

Click the Exhibit button.


You manage the Layer 2 network shown in the exhibit. You experience a failure on the ge-0/0/0 link between Switch-1 and Switch-2.
Which statement is correct about the expected behavior?

  • A. Switch-3ג€™s ge-0/0/2 port role and state will transition to designated and forwarding.
  • B. Switch-3ג€™s ge-0/0/2 port role and state will remain as alternate and discarding.
  • C. Switch-3 will become the root bridge for the RSTP topology.
  • D. Switch-3 will remove the ge-0/0/2 interface from the RSTP topology.


Answer : A

Click the Exhibit button.


Referring to the exhibit, which statement explains why the route to 192.168.178.0/24 advertised from 192.168.35.90 is hidden?

  • A. The import routing policy rejected the route.
  • B. The AS path contains invalid confederation attributes.
  • C. The next-hop address is a multicast address.
  • D. The AS path contains a zero.


Answer : A

Which two statements describe the BGP Local Preference attribute? (Choose two.)

  • A. The attribute can be altered through a BGP configuration or using a policy.
  • B. The attribute is transmitted across EBGP links.
  • C. The attribute can be given a higher preference by configuring a lower numerical value.
  • D. The attribute can be used to direct all outbound traffic through a specific peer.


Answer : AD

Click the Exhibit button.


You have an existing Virtual Chassis consisting of five member devices. Member 3 fails and must be replaced. You remove the EX Series switch with a Member
ID of 3 and install a replacement switch in its place using identical cabling as shown in the exhibit. The replacementג€™s member ID is 6, so the configuration for member ID 3 is not applied to it.
Referring to the exhibit, what should have been done before installing the replacement switch?

  • A. Reactivate the Virtual Chassis.
  • B. Recycle the member ID of the switch being replaced.
  • C. Renumber the member IDs.
  • D. Clear the Virtual Chassis protocol.


Answer : B

Click the Exhibit button.


What would cause the status of interface ge-0/0/8 as shown in the exhibit?

  • A. Interface ge-0/0/8 is physically down and is not forwarding traffic.
  • B. Interface ge-0/0/8 has a firewall filter in place that is blocking traffic.
  • C. Interface ge-0/0/8 is administratively disabled and is not forwarding traffic.
  • D. Interface ge-0/0/8 is connected to the same LAN as one of the other ports.


Answer : D

What are three types of bridge protocol data units? (Choose three.)

  • A. media endpoint discovery
  • B. topology change acknowledgement
  • C. topology change notification
  • D. type length value
  • E. configuration


Answer : BCE

An EX Series switch receives a frame with an unknown destination MAC address.
What is the expected behavior?

  • A. The frame is sent out all ports assigned to all configured VLANs except the ingress port on which the frame was received.
  • B. The frame is sent out all access ports associated with the ingress VLAN regardless of whether a matching MAC address was found in the bridge table.
  • C. The frame is sent out all ports assigned to the associated VLAN except the ingress port on which the frame was received.
  • D. The frame is sent out all trunk ports associated with the ingress VLAN regardless of whether a matching MAC address was found in the bridge table.


Answer : C

Click the Exhibit button.


You are establishing a BGP session between R1 and R2. R2 shows 172.24.1.1 as its peer address for R1 instead of 192.168.100.1.
Referring to the exhibit, what must be changed in the configuration?

  • A. A peer-as statement must be added to R1 in the internal group.
  • B. An export policy statement must be added to R1 in the internal group to allow the lo0 address to peer.
  • C. A local interface statement with the lo0 address must be added to R1 in the internal group.
  • D. A local address statement with the lo0 address must be added to R1 in the internal group.


Answer : D

What is considered a requirement for passing traffic through GRE tunnels?

  • A. Tunnel endpoints must have static routes pointing to the remote endpoints.
  • B. You must configure the tunnel on the physical interface connecting to the remote endpoint.
  • C. You must be able to reach the remote endpoint through the tunnel.
  • D. Tunnel endpoints must have a route that directs traffic into the tunnel.


Answer : C

Which two values are used to generate a bridge ID when using STP? (Choose two.)

  • A. system MAC address
  • B. bridge priority
  • C. port identifier
  • D. loopback IP address


Answer : AB

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Exam contains 136 questions

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