[UPDATED 2022] Juniper JN0-648 Questions Prepare with Free Demo of PDF
NEW 2022 Certification Sample Questions JN0-648 Dumps & Practice Exam
NEW QUESTION 12
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 vxlan encapsulate-inner-vlan
- B. set routing-instances EVPN1 instance-type evpn
- C. set routing-instances EVPN1 bridge-domains BD-101 vxlan vni 101
- D. set routing-instances EVPN1 vrf-table-label
Answer: C
Explanation:
https://www.juniper.net/documentation/en_US/junos/topics/example/evpn-vxlan-mx-qfx-configuring.html
https://www.juniper.net/documentation/us/en/software/junos/evpn-vxlan/topics/task/evpn-routing-instance-configuring.html
NEW QUESTION 13
Click the Exhibit button.
Referring to the exhibit, how is R1 learning the route from R2?
R2 has an export policy with external type 2 configured.
- A. R2 has interface ge-0/0 configured as a passive interface under OSPFv3.
- B. R2 has an interface policy with external type 1 configured.
- C. R2 has interface ge-0/0/2 configured as a passive interface under OSPFv3.
- D. R2 has interface ge-0/0/2 configured in another area under OSPFv3.
Answer: B
NEW QUESTION 14
Click the Exhibit button.
You are configuring BGP policies for a site with a dual-homed connection as shown in the exhibit. You must ensure that inbound traffic from Internet hosts flow through the ISP A connection.
Which statement is correct in this scenario?
- A. Apply a BGP export policy on R1 to assign a higher local preference value to routes advertised to ISP A.
- B. Apply a BGP export policy to R2 to prepend [65001 65001 65001 65001 65001] to the AS path of routes advertised to ISP B.
- C. Apply a BGP export policy on R1 to assign a lower MED value to routes advertised to ISP A.
- D. Apply a BGP export policy on R2 to assign a lower origin value to routes advertised to ISP B.
Answer: B
NEW QUESTION 15
You have PIM SM multicast configured and running in a network environment comprised of EX4300 devices.
Your customers report increased delay when switching channels using IPTV. To help decrease the delay, you implement PIM join load balancing. You add the set protocols pim join-load-balancecommand to the configuration. After committing, you notice that the flows are still using only one path.
In this scenario, which statement is correct?
- A. PIM join load-balancing only works for PIM-DM.
- B. The interfaces must be specified to use for load balancing.
- C. The clear pim join-distributioncommand must be issued.
- D. IGMP snooping must also be configured.
Answer: C
NEW QUESTION 16
Click the Exhibit button.
Referring to the exhibit, which two statements are true? (Choose two.)
- A. There is no need for a DR for the ge-0/0/0 interface.
- B. There can be more than one OSPF neighbor on the ge-0/0/1 interface.
- C. The DR election process is not finished for the ge-0/0/0 interface.
- D. There can be more than one OSPF neighbor on the ge-0/0/0 interface.
Answer: A,B
NEW QUESTION 17
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 bridge-domains BD-101 vxlan vni 101
- B. set routing-instances EVPN1 instance-type evpn
- C. set routing-instances EVPN1 vxlan encapsulate-inner-vlan
- D. set routing-instances EVPN1 vrf-table-label
Answer: B
NEW QUESTION 18
Exhibit:
Referring to the exhibit, on which three IS-IS routers will the attached bit be set? (Choose three. )
- A. R2
- B. R6
- C. R5
- D. R4
- E. R3
Answer: A,B,E
NEW QUESTION 19
You ate deploying P|M source-specific multicast (SSM) for a new multicast messaging service You have configured the multicast source to use 236.44.123.100 as the multicast address. You are not able to join the PIM SSM multicast teed Which two solutions would resolve this problem? (Choose two )
- A. Reconfigure the multicast source to use an address in the range of 224.0.0 0 through 224.255.255.255.
- B. Add the multicast address to the (edit routing-options multicast ssm-map) stanza.
- C. Add the multicast address to the [edit routing-options multicast ssm-groups] stanza.
- D. Reconfigure the multicast source to use an address in the range of 232 0.0 0 through 232.255.255.255
Answer: B,D
NEW QUESTION 20
What information is contained in an OSPF LSA header? (Choose two.)
- A. options
- B. protocol
- C. subnet mask
- D. length
Answer: A,D
NEW QUESTION 21
Your network is configured for EVPN load balancing on three different access switches During an outage, you notice that not all interfaces are receiving traffic as expected Which two requirements would you validate to identify this problem? (Choose two )
- A. Validate that the all-active flag is configured for multiple interfaces on each switch.
- B. Validate that all-active is configured for only one interface per switch.
- C. Validate that the same esi value is only configured on one interface per switch.
- D. Validate that the same esi value is configured on multiple interfaces on all switches.
Answer: A,C
Explanation:
B: https://www.juniper.net/documentation/en_US/junos/topics/example/example-evpn-active-active-multihoming-configuring.html D: "Two interfaces (physical, logical, or aggregated Ethernet) cannot be configured with the same ESI value" https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/esi-edit-interfaces.html
NEW QUESTION 22
You are currently using VLAN IDs 2 through 300 within your Layer 2 domain and you need to configure VSTP to prevent loops You must ensure that all VL ANs are loop free.
In this scenario, which statement is correct?
- A. You must enable all VLANs, 2 through 300, under the VSTP configuration
- B. You must ensure that the VLANs are balanced between two different root bridges.
- C. You must enable RSTP to account for all VLANs.
- D. You must ensure that the bridge priority is set to the lowest value on all switches in the Layer 2 domain.
Answer: A
Explanation:
https://www.juniper.net/documentation/en_US/junos/topics/topic-map/spanning-tree-loop-protection.html
NEW QUESTION 23
Exhibit:
Referring to the exhibit, which two statements are true with regards to deploying CoS? (Choose two.)
- A. You should apply MF classifiers on the LAN-facing interfaces of the routers
- B. You should apply BA classifiers on the LAN-facing interfaces of the routers
- C. You should apply MF classifiers on the point-to-point interfaces of the routers
- D. You should apply BA classifiers on the point-to point interfaces of the routers.
Answer: A,D
NEW QUESTION 24
You have configured class mode power management on an EX4300 to provide PoE power to telephone and security camera equipment. You want to ensure that security camera power takes priority over telephone power.
Which two actions would solve this problem? (Choose two.)
- A. Connect the security cameras to the lowest port numbers on the switch.
- B. Set the power priority to high on ports connected to security cameras.
- C. Set the maximum power settings on ports connected to security cameras.
- D. Set the power priority to low on ports connected to security cameras.
Answer: A,B
NEW QUESTION 25
You are redistributing static routes into an OSPF area.
Which two statements are true in this scenario? (Choose two.)
- A. The external route advertisements have a domain scope.
- B. The area must be the backbone area.
- C. The routes can be advertised in type 7 LSAs.
- D. The area must be a stub area.
Answer: B,C
NEW QUESTION 26
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.
Answer: C
NEW QUESTION 27
Click the Exhibit button.
You are investigating reports of increased latency and discover that some routes cause customer traffic to traverse a route reflector instead of the optimal path.
Referring to the exhibit, which configuration statement would solve the problem?
- A. delete protocols bgp group BGP-MESH export NHS
- B. set policy-options policy-statement NHS term BGP_ROUTES from external
- C. delete protocols bgp group BGP-MESH peer-as
- D. set protocols bgp group BGP-MESH import NHS
Answer: B
Explanation:
root@vMX1# show policy-options policy-statement nhs
term 1 {
from {
protocol bgp;
external;
}
then {
next-hop self;
}
}
NEW QUESTION 28
Click the Exhibit button.
You are configuring BGP policies for a site with a dual-homed connection as shown in the exhibit. You need all outbound traffic to egress the network through the link to ISP B by default. The ISPs should not be able to override this behavior through BGP attributes.
Which BGP attribute would you modify on the ISP-received routes to accomplish this objective?
- A. next-hop
- B. local preference
- C. origin
- D. MED
Answer: B
NEW QUESTION 29
Click the Exhibit button.
You receive the same 75.100.0.0/16 route from all four ISPs to which you are connected.
Referring to the exhibit, which ISP's route will be selected as active?
- A. ISP-C
- B. ISP-A
- C. ISP-B
- D. ISP-D
Answer: D
NEW QUESTION 30
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Resources to Ace Your JN0-648 Exam
All in all, there are two official courses offered by Juniper Networks which are recommended to train candidates to successfully pass JN0-648 exam:
- Advanced Junos Enterprise Routing (AJER)
This is a five-day class that covers useful concepts of Layer 3 elements in enterprise networks. Plus, you will learn about BGP, multicast, OSPF, the class of service, and EVPN-VXLAN. By taking this training, your troubleshooting skills will also be enriched. To add more, this course utilizes some demonstrative means and practical labs that help students gain great experience with handling the Junos OS and operations for protocols. As prerequisites, you need to have a fundamental knowledge of networking and the model for Open Systems Interconnection (OSI), as well as the TCP/IP suite of protocols. Work experience with core routing facets is also needed. You should also have taken the Introduction to the Junos Operating System (IJOS) and Junos Intermediate Routing (JIR) courses.
- Advanced Junos Enterprise Switching (AJEX)
This two-day course details such notions as VLAN, MSTP, VSTP, Layer 2 networks, IP telephony features, CoS, and handling tools which use the EX Series Ethernet Switches. Before taking it, you need to have a fundamental understanding of the OSI reference model, and the TCP/IP protocol suite. What is more, prerequisite courses include Junos Operating System (IJOS) and Junos Enterprise Switching (JEX). To put it simply, this class covers various Juniper products, Switching, EX Series, and Junos OS and is available on the vendor’s site as on-demand training that will cost you $1900.
How to study the Juniper JN0-648: Enterprise Routing and Switching, Professional (JNCIP-ENT) Exam
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