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NEW QUESTION # 77
You are redistributing static routes into an OSPF area. Which two statement are true is this scenario? (Choose two.)
- A. The routes can be advertised in type LSAs.
- B. The area must be stub area.
- C. The external route advertisements have a domain scope.
- D. The area must be the backbone area.
Answer: A,D
NEW QUESTION # 78
You are deploying new Juniper EX Series switches in a network that currently is using Cisco's Per- VLAN spanning tree plus (PVST+) and you must provide compatibility with this environment.
Which spanning tree protocol do you deploy in this scenario?
- A. RSTP
- B. MSTP
- C. VSTP
- D. STP
Answer: B
NEW QUESTION # 79
You are troubleshooting a route problem in the topology shown in the exhibit. The 10.30.0 0/24 route is not reachable from the R3 router. What would cause this problem?
- A. R3 does not have an established BGP session with R4.
- B. R4 is not advertising the 10.30.0.0/24 route to R3
- C. R3 does not have an OSPF route for 10.30.0.0/24
- D. R3 does not have a route to the BGP next hop of 10.30.0.0/24
Answer: D
NEW QUESTION # 80
You are asked to troubleshoot voice quality issues on your newly implement VoIP network. You notice that the voice packets are being dropped. You have verified that the packets are correctly marked for expedited forwarding queue.
Referring to the exhibit, what must you configure to solve the problem?
- A. You must configure a rewrite rule to ensure that the traffic is scheduled properly in the device.
- B. You must configure a scheduler to allocate bandwidth to the expedited forwarding queue.
- C. You must configure a policer to ensure that the queue is not being starved.
- D. You must configure a multifield classifier to put the VoIP traffic in the correct queue.
Answer: B
Explanation:
* Understanding the Problem:
* The issue involves voice packets being dropped in a newly implemented VoIP network.
* Voice packets are marked correctly for the expedited forwarding (EF) queue, indicating that classification is working as intended.
* Dropped packets suggest that there may be insufficient resources allocated to handle the traffic in
* the EF queue.
* Key Concepts:
* Classifiers: These are used to mark packets so that they can be placed into the appropriate forwarding class. This step is already correctly implemented as indicated by the problem statement.
* Rewrite Rules: These ensure that packets retain their markings as they transit the network, but this is not the issue here as packets are already marked correctly.
* Policers: These control the rate of traffic to ensure it does not exceed specified limits, but policing is not required here as the issue is with packet drops due to insufficient resources.
* Schedulers: These allocate resources (bandwidth, priority) to different queues to ensure that high-priority traffic (like VoIP) is transmitted with minimal delay and packet loss.
* Solution: Configuring a Scheduler:
* To prevent the EF queue from being starved of resources and to ensure voice packets are not dropped, you need to configure a scheduler. This scheduler will allocate appropriate bandwidth and priority to the EF queue.
* Configuring Scheduler on Juniper Devices:
* Here is a sample configuration to allocate bandwidth to the expedited forwarding queue:
set class-of-service schedulers voip-scheduler transmit-rate percent 20 set class-of-service schedulers voip-scheduler priority strict-high set class-of-service forwarding-classes queue 1 expedited-forwarding set class-of-service forwarding-classes queue 1 scheduler voip-scheduler
* In this configuration:
* The voip-scheduler is set to allocate 20% of the bandwidth and is given strict-high priority to ensure voice packets are transmitted with the highest priority.
* The EF queue (queue 1) is associated with the voip-scheduler.
* Verification:
* Ensure the scheduler is applied and active on the interfaces handling the VoIP traffic.
* Monitor the interface statistics to ensure that packet drops are minimized and voice quality issues are resolved.
References:
* Juniper Networks Documentation on Class of Service
* Configuring Schedulers
NEW QUESTION # 81
What are three well-known mandatory BGP attributes? (Choose three.)
- A. AS-path
- B. next-hop
- C. MED
- D. community
- E. origin
Answer: A,B,E
NEW QUESTION # 82
You are troubleshooting connectivity between an EVPN spine switch configured as a route reflector and a leaf node with an IP address of 10.30.100.6.
Referring to the exhibit, what is the problem?
- A. The leaf node is not configured for the family evpn NLRI.
- B. The neighbor 10.30.100.6 statement is missing from spine1's configuration.
- C. The spine node is not configured for the family inet NLRI.
- D. The neighbor 10.30.100.3 statement is missing from leaf1's configuration.
Answer: A
Explanation:
* The leaf node is not configured for the family evpn NLRI (D):
* The exhibit shows that there is an unsupported capability NP error for AFI 1, SAFI 70. This indicates that the leaf node is not configured to support the EVPN (Ethernet VPN) address family.
References:
* The BGP configuration and troubleshooting details can be found in "Juniper Commands.pdf" and related EVPN configuration documents.
NEW QUESTION # 83
Refer to Exhibit:
You have a workstation and a VoIP phone connected to port ge-0/0/1 on an access switch.
Referring to the exhibit, which two statements are true? (Choose two.)
- A. Voice frames that enter interface ge-0/0/1 will be forwarded as expedited forwarding traffic.
- B. The phone will automatically be assigned a VLAN ID.
- C. Frames that exit interface ge-0/0/1 on the data VLAN will be tagged.
- D. All frames that exit interface ge-0/0/1 will belong to the data VLAN.
Answer: A,B
Explanation:
https://www.juniper.net/documentation//en_US/junos/topics/topic-map/802-1x-and-voip-on- switches.html#id-example-setting-up-voip-with-8021x-and-lldp-med-on-an-ex-series-switch
https://www.juniper.net/documentation/en_US/junos/topics/topic-map/device-discovery-using-lldp- lldp-med.html
NEW QUESTION # 84
Referring to the outputs shown in the exhibit, which two statements are correct about the IS-IS adjacency? (Choose two.)
- A. R2 is configured to participate in both Level 1 and Level 2.
- B. R1 is configured to participate in both Level 1 and Level 2.
- C. R2 is configured to participate in Level 2 only.
- D. R1 is configured to participate in Level 2 only.
Answer: A,D
NEW QUESTION # 85
You have scheduled maintenance operations for one of the devices in your OSPF network.
Referring to the exhibit, which three statements are correct? (Choose three.)
- A. Any traffic destined for networks that terminate on R1 will still be forwarded to R1.
- B. R1 does not participate in OSPF routing.
- C. R1 participates in OSPF routing but does not send or receive transit traffic.
- D. The metrics for all transit interfaces on R1 is set to the maximum value of 65,535.
- E. R1 does not send or receive transit traffic during the maintenance window even if no alternative paths exist to the given destination.
Answer: A,C,D
NEW QUESTION # 86
Which three statements are correct about EVPN route types? (Choose three.)
- A. Type 5 routes carry replication information.
- B. Type 3 routes carry replication information.
- C. Type 2 routes carry endpoint IP address information.
- D. Type 2 routes carry endpoint MAC address information.
- E. Type 1 routes carry endpoint MAC address information.
Answer: B,C,D
Explanation:
* Understanding EVPN Route Types:
* EVPN (Ethernet VPN) is used for providing Ethernet multipoint services over MPLS or VXLAN networks.
* EVPN Route Types:
* Type 1 (Ethernet Auto-Discovery Route): Used for auto-discovery of PEs and for detecting multi-homed devices.
* Type 2 (MAC/IP Advertisement Route):
* Carries endpoint MAC address information.
* Carries endpoint IP address information.
* Facilitates MAC learning and IP-to-MAC binding distribution.
* Type 3 (Inclusive Multicast Route):
* Carries replication information.
* Used for forwarding multicast and broadcast traffic.
* Type 5 (IP Prefix Route): Carries IP prefixes for inter-subnet connectivity, but not replication information.
* Verification:
* Type 2 routes are crucial for distributing MAC and IP information about endpoints.
* Type 3 routes are used to manage multicast traffic effectively.
References:
* Juniper EVPN Configuration Guide
* Understanding EVPN Route Types
NEW QUESTION # 87
You are asked to establish interface level authentication for users connecting to your network. You must ensure that only corporate devices, identified by MAC addresses, are allowed to connect and authenticate. Authentication must be handled by a centralized server to increase scalability.
Which authentication method would satisfy this requirement?
- A. captive portal
- B. MAC RADIUS
- C. 802.1X with single-secure supplicant mode
- D. 802.1X with multiple supplicant mode
Answer: B
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/user-access/topics/topic-map/mac-radius-authentication-switching-devices.html You can configure MAC RADIUS authentication on an interface that also allows 802.1X authentication, or you can configure either authentication method alone.
If both MAC RADIUS and 802.1X authentication are enabled on the interface, the switch first sends the host three EAPoL requests to the host. If there is no response from the host, the switch sends the host's MAC address to the RADIUS server to check whether it is a permitted MAC address. If the MAC address is configured as permitted on the RADIUS server, the RADIUS server sends a message to the switch that the MAC address is a permitted address, and the switch opens LAN access to the nonresponsive host on the interface to which it is connected.
NEW QUESTION # 88
Referring to the exhibit, there are multiple ASM groups in the 224 0 0.0/4 range Which configuration change is needed to ensure R1 is always the RP for group 224.224.1.1?
- A. Set the priority on R1 to zero
- B. Configure R1 with a higher local RP address
- C. Increase the priority on R1 to higher than R2
- D. Ensure R1 has a more specific group range
Answer: C
NEW QUESTION # 89
Referring to the exhibit, on which three IS-IS routers will the attached bit be set? (Choose three.)
- A. UR3
- B. R2
- C. R6
- D. R4
- E. UR5
Answer: A,B,C
NEW QUESTION # 90
Remote branches connect to the corporate WAN through access switches. The access switches connect to access ports on the WAN distribution switch, as shown in the exhibit. L2PT has previously been configured on the tunnel Layer 2 traffic across the WAN. You decide to move the L2PT tunnel endpoints to the access switches. When you apply the L2PT configuration to the access switches, the ports that connect the access switches to the distribution switch shut down.
Which action would solve this problem?
- A. Disable the BPDU block function on the distribution switch.
- B. Configure a GRE tunnel to encapsulate the L2PT traffic across the WAN.
- C. Configure the links between the access switches and the distribution switch as a trunk port.
- D. Disable the BPDU block function on the access switches.
Answer: C
NEW QUESTION # 91
When configuring connectivity to a VoIP enabled phone, which two statements are correct?
(Choose two.)
- A. The switch places voice traffic in the best-effort forwarding class by default.
- B. The telephone device can signal to the switch which VLAN tag it will place on voice traffic.
- C. The switch can signal to the phone device which VLAN tag it should use for voice traffic.
- D. The switch places voice traffic in the expedited forwarding class by default.
Answer: C,D
NEW QUESTION # 92
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. Add the multicast address to the (edit routing-options multicast ssm-map) stanza.
- B. Reconfigure the multicast source to use an address in the range of 232 0.0 0 through
232.255.255.255 - C. Reconfigure the multicast source to use an address in the range of 224.0.0 0 through
224.255.255.255. - D. Add the multicast address to the [edit routing-options multicast ssm-groups] stanza.
Answer: A,B
NEW QUESTION # 93
Referring to the exhibit, traffic ingresses on interface ge-0/0/3 and egresses on interface ge-0/0/4.
Which queue does traffic with the IP precedence value of 100 use?
- A. assured-forwarding
- B. expedited-forwarding
- C. network-control
- D. best-effort
Answer: B
NEW QUESTION # 94
You want to provide Layer 2 connectivity between campus sites using Ethernet switches through a metro Ethernet service provider who is using Q-in-Q tagging on their network.
Referring to the exhibit, what are two design considerations in this environment? (Choose two.)
- A. Each campus switch shown must have S-Tag 300 configured.
- B. VXLAN could be implemented on your network across this service provider network.
- C. L2PT is required on the SP network to support the spanning tree protocol.
- D. Each campus switch shown must have a C-Tag 300 configured.
Answer: A,C
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/multicast-l2/topics/ref/statement/layer2-protocol-tunneling-edit-vlans-l2pt-ex-series.html
NEW QUESTION # 95
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 R1 to R5
- B. After the formation of the shortest-path free, a prune message is sent from R1 to R5.
- C. After the formation of the shortest-path tree, a join message is sent from R2 to R1.
- D. After the formation of the shortest-path tree, a prune message is sent from R1 to R2.
Answer: D
NEW QUESTION # 96
A user is attempting to watch a high-definition video being streamed from the media server over the network. However, the user complains that the experienced video quality is poor. While logged on to router B, a Juniper Networks device, you notice that video packets are being dropped.
In this scenario, what would solve this problem?
- A. Adjust the scheduler for the expedited-forwarding forwarding class to support a higher transmit rate.
- B. Adjust the expedited-forwarding BA classifier on router B's ge-0/0/1 interface to support a higher transmit rate.
- C. Adjust the expedited-forwarding BA classifier to router B's ge-0/0/0 interface to support a higher transmit rate.
- D. Adjust the scheduler-map to support a higher transmit rate.
Answer: A
Explanation:
Transmit rate is set on the scheduler, BA and classifier do not have transmit rate. scheduler- map=maps schedulers to fwd classes.
NEW QUESTION # 97
You want to create an OSPF area that only contains intra-area route information in the form of Type 1 and Type 2 LSAs.
In this scenario, which area is needed to accomplish this task?
- A. totally non-to-stubby area
- B. totally stubby area
- C. non-to-stubby area
- D. stub area
Answer: B
NEW QUESTION # 98
There are two BGP routes to 10.200.200.0/24 received from two external peers. Route 1 comes from a neighbor with a router ID of 10.10.100.1 and a peer IP address of 10.10.30.1, and route 2 comes from a neighbor with a router ID of 10.10.200.1 and a peer IP address of 10.10.50.1. Both routes have the same MED value, origin value, AS path length, and local preference number.
In this scenario, which statement is correct about the active route?
- A. Route 1 will be active because of the router ID.
- B. Route 2 will be active because of the router ID.
- C. Route 1 will be active because of the peer IP address.
- D. Route 2 will be active because of the peer IP address.
Answer: B
Explanation:
When two BGP routes have identical attributes (MED, origin, AS path length, local preference), BGP uses the router ID as a tie-breaker. In this case, route 2 has a higher router ID (10.10.200.1 vs. 10.10.100.1). BGP will select the route with the higher router ID as the active route.
References:
* Useful Juniper Commands.txt
* Tech Ops Managed Router Juniper Install Guide
NEW QUESTION # 99
Referring to the outputs shown in the exhibit, which two statements are correct about the IS-IS adjacency?
(Choose two.)
- A. R1 is configured to participate in Level 2 only.
- B. R2 is configured to participate in Level 2 only.
- C. R2 is configured to participate in both Level 1 and Level 2.
- D. R1 is configured to participate in both Level 1 and Level 2.
Answer: B,D
Explanation:
From the provided IS-IS adjacency outputs:
* R1 is configured to participate in both Level 1 and Level 2 (A): This is indicated by the adjacency states for both Level 1 and Level 2 on the R1 interfaces.
* R2 is configured to participate in Level 2 only (D): This is shown by the adjacency state for Level 2 only on the R2 interfaces.
References:
* The IS-IS adjacency outputs indicate the state and levels of participation for each router.
* Configuration and command references from "Example configs for VMRCAXP01W.txt" and other
* documents provide context for understanding IS-IS states and levels.
NEW QUESTION # 100
You are running OSPF as your IGP. The interfaces connecting two routers are in the ExStart state. You notice that something is incorrect with the configuration.
Referring to the exhibit, which statement is correct?
- A. The MTU setting are incorrect.
- B. The subnet mask is incorrect.
- C. The interface type is incorrect.
- D. The IP addresses are incorrect.
Answer: A
NEW QUESTION # 101
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