Juniper JN0-648 Enterprise Routing and Switching, Professional (JNCIP-ENT) Online Training
Juniper JN0-648 Online Training
The questions for JN0-648 were last updated at Jul 11,2025.
- Exam Code: JN0-648
- Exam Name: Enterprise Routing and Switching, Professional (JNCIP-ENT)
- Certification Provider: Juniper
- Latest update: Jul 11,2025
Exhibit.
Referring to the exhibit, which two statements are true regarding Q-in-Q tunneling? {Choose two)
- A . The C-VLAN traffic will be encapsulated with an outer VLAN tag of 10.
- B . The C-VLANs 100-200 will be sent as the inner VLAN tag
- C . The C-VLAN 150 will be sent as the inner VLAN tag
- D . The C-VLAN traffic will be encapsulated with an outer VLAN lag of 150
Exhibit.
Referring to the exhibit, a RMSM network is set up to enable communication between multicast devices.
Which statement is true in this scenario?
- A . After the formation of the shortest-path tree, a join message is sent from R2 to R1.
- B . After the formation of the shortest-path tree, a join message is sent from R1 to R5
- C . After the formation of the shortest-path tree, a prune message is sent from R1 to R2.
- D . After the formation of the shortest-path free, a prune message is sent from R1 to R5.
In IS-IS advertising POUs with the overload bit has which effect?
- A . The local device will no longer be used for transit traffic
- B . The local device’s POUs are marked with a metric of 65535
- C . The ISIS adjacencies become passive
- D . The IS-IS adjacencies enter the "new" state
What are two supported PoE management modes? (Choose two.)
- A . mixed
- B . standalone
- C . class
- D . static
You have an MX960 configured as a Fusion aggregation device (AD) and two QFX5100 switches as satellite devices (SD). You have configured local-switching for each SD. A packet with an unknown MAC address is received on one of the SD extended ports.
Which statement is correct in this scenario?
- A . The packet is dropped and a reject message is sent out to the port where it was received.
- B . The packet is silently discarded and a reject message is sent to the AD.
- C . The packet is flooded out of all the ports on the SD except the one where it was received.
- D . The packet is sent to the AD to be processed and forwarded.
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Click the Exhibit button.
You are adding VNI 101 to your EVPN-VXLAN network, but traffic is not being sent or received.
Referring to the exhibit, which configuration statement will solve the problem?
- A . set routing-instances EVPN1 instance-type evpn
- B . set routing-instances EVPN1 vxlan encapsulate-inner-vlan
- C . set routing-instances EVPN1 bridge-domains BD-101 vxlan vni 101
- D . set routing-instances EVPN1 vrf-table-label
Click the Exhibit button.
Referring to the exhibit, which statement is correct?
- A . This router is an ASBR.
- B . This router is an ABR.
- C . This router is connected to 27 different areas.
- D . This router originated the LSA.
You are implementing 802.1x access control in your network of EX Series switches. You have some older client devices connecting to your network which do not support 802.1x.
Which statement is true regarding the older devices?
- A . By default, the supplicant will send EAP messages and keep the port in an unauthorized state.
- B . By default, the authenticator will send EAP messages and keep the port in an unauthorized state.
- C . By default, the supplicant will send EAP messages until it reaches a predefined limit, after which it begins to forward traffic.
- D . By default, the authenticator will send EAP messages until it reaches a predefined, after which it begins to forward traffic.
Your company has expanded into office space across the street. The new office space has a single Ethernet
connection connected to an unmanaged switch. You must sort traffic based on the IP address into different VLANs once the traffic arrives on your EX Series switches.
Which mechanism would you use to accomplish this task?
- A . MVRP
- B . filter-based VLANs
- C . Q-in-Q tunneling
- D . dynamic VLANs
You notice a mass withdrawal of routes for some of the network hosts. You determine that the link on the ESI interface is down.
Which route type is used in this scenario?
- A . Type 2
- B . Type 3
- C . Type 1
- D . Type 5
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