Enterprise Routing and Switching, Professional (JNCIP-ENT) v1.0
Question 1
You are configuring CoS throughout your enterprise network using DSCP. You have configured MF classification on your edge devices and are using BA classifiers throughout the core. You are using the EZQoS template provided on your EX Series switches that are acting as your edge devices. You have loaded the configuration group and applied it to the appropriate interfaces. Classification and scheduling are working properly on your edge devices; however, traffic is not being classified correctly when it reaches your core devices.
In this scenario, which statement is correct about solving this problem?
- A. You should configure and apply a policer to the edge devices' egress interfaces toward the core.
- B. You must configure the core devices using the EZQoS template as well.
- C. You should configure and apply rewrite rules on the edge devices' egress interfaces toward the core.
- D. You must configure the edge devices to use BA classifiers instead of MF classifiers.
Answer : C
Question 2
You want to validate a recursive lookup for an EVPN route designation.
Which route table query will accomplish this task?
- A. inet.2
- B. default-switch.evpn.0
- C. inet.3
- D. vxlan.inet.0
Answer : B
Question 3
Click the Exhibit button.
You want to provide better performance for the video traffic that traverses your network. The video traffic enters your network without any class-of-service markings.
According to Juniper Networks, which two classification methods are performed by the routers shown in the exhibit? (Choose two.)
- A. R1 performs behavior aggregate classification.
- B. R1 performs multifield classification.
- C. R2 and R3 perform multifield classification.
- D. R2 and R3 perform behavior aggregate classification.
Answer : BD
Question 4
You are adding a new QFX Series switch to an EVPN-VXLAN IP fabric.
In this scenario, which two statements are correct? (Choose two.)
- A. The encapsulation vxlan setting is configured under the protocols evpn hierarchy.
- B. The family vpls signaling address family is configured under the BGP protocol.
- C. The family evpn signaling address family is configured under the BGP protocol.
- D. The loopback interface must be advertised using the BGP protocol.
Answer : CD
Question 5
You are deploying a three-stage EVPN environment with VXLAN using EX and QFX Series switches. The leaf devices will perform the gateway services.
Which two statements are correct in this scenario? (Choose two.)
- A. Only the leaf devices must support VXLAN capabilities.
- B. The leaf devices will function as VTEPs.
- C. Both the leaf and spine devices must support VXLAN capabilities.
- D. The spine devices will function as VTEPs.
Answer : AB
Question 6
You have created a private community VLAN called RND. The private community VLAN works fine within switch S1, but traffic in the private RND community VLAN does not reach VLAN members connected to switch S2.
Which statement is correct in this scenario?
- A. The RND community VLAN needs to have the same 802.1Q tag as its parent VLAN.
- B. The RND community VLAN needs to have an associated 802.1Q tag associated with it.
- C. The RND community VLAN needs to be stripped of all 802.1Q tags.
- D. The RND community VLAN needs to be defined as an isolated VLAN.
Answer : B
Question 7
Click the Exhibit button.
You are receiving the 203.0.113.0/24 route from both upstream ISPs. You are asked to ensure that ISP A is the preferred ISP for traffic being sent to the 203.0.113.0/24 network from devices in AS 65512.
Referring to the exhibit, which two statements will accomplish this behavior? (Choose two.)
- A. You should assign a local preference that is lower than 100 for the route learned from ISP A.
- B. You should assign a local preference that is higher than 100 for the route learned from ISP A.
- C. You should assign a local preference that is lower than 100 for the route learned from ISP B.
- D. You should assign a local preference that is higher than 100 for the route learned from ISP B.
Answer : BC
Question 8
Your organization uses 802.1X with a RADIUS server. If the RADIUS server stops responding, you want the fallback action to continue to permit access for devices that currently have authorization but deny any new access attempts.
Which fallback action provides this capability?
- A. deny
- B. vlan-name
- C. permit
- D. use-cache
Answer : D
Question 9
Which two statements are correct when using the no-loss forwarding class? (Choose two.)
- A. Use the default scheduler map.
- B. Use forwarding class sets.
- C. Use priority-based now control.
- D. Use the default drop profile.
Answer : BC
Question 10
Which statement accurately describes the role of a multicast RP, specifically when using the PIM sparse mode?
- A. The RP functions as a central point where multicast sources announce their existence and receivers send join requests to start multicast sessions.
- B. The RP is primarily used in the PIM dense mode to flood multicast traffic throughout the network periodically.
- C. The RP is responsible for forwarding all multicast traffic to all interfaces on the network, regardless of receiver interest.
- D. The RP in the PIM sparse mode eliminates the need for any source-specific multicast (SSM) configurations.
Answer : A
Question 11
Click the Exhibit button.
Referring to the exhibit, what will enable active routes from both peers?
- A. Configure neighbor 172.16.1.1 multipath under the ext-peers hierarchy.
- B. Configure multipath under the ext-peers hierarchy.
- C. Configure neighbor 172.16.1.1 under the ext-peers hierarchy.
- D. Configure neighbor 10.10.20.2 multipath under the ext-peers hierarchy.
Answer : B
Question 12
Click the Exhibit button.
Referring to the exhibit, R2 receives a packet from the multicast source on its ge-0/0/4.0 interface.
Which two statements are correct in this scenario? (Choose two.)
- A. R2 verifies the existing unicast routing table and determines that this interface is not on the reverse path back to the source.
- B. All interfaces other than ge-0/0/4.0 will be on the outgoing interface list.
- C. The packet is discarded.
- D. R2 determines that the packet is coming in on an interface that is on the reverse path back to the source.
Answer : AC
Question 13
You are asked to establish authentication for users connecting to the corporate network. You must ensure that only corporate devices that are identified by MAC addresses are allowed to authenticate and connect. Authentication must be handled by a centralized database.
Which authentication method would you implement in this scenario?
- A. MAC RADIUS
- B. captive portal
- C. single-secure supplicant mode
- D. single supplicant mode
Answer : A
Question 14
Your Layer 2 network uses 802.1X to authenticate user devices connecting to the network. You are asked to include a new Layer 2 interface connection from the conference room in your network. You must ensure that only a single device is allowed to authenticate on this port at one time to avoid users from being able to plug in a rogue switch to this port.
In this scenario, which 802.1X method would you use for the new interface?
- A. single-secure supplicant mode
- B. multiple supplicant mode
- C. single supplicant mode
- D. MAC-RADIUS
Answer : A
Question 15
Your existing enterprise network uses OSPFv3 on Juniper devices. You need to extend the networking into a new building, and it needs to be in its own OSPF area. Your team is debating about making the area a stub.
Which two statements are correct in this scenario? (Choose two.)
- A. Stub areas can have an ASBR.
- B. Stub areas can also be not-so-stubby areas.
- C. Stub areas do not support virtual links.
- D. Stub areas can be converted into totally stubby areas.
Answer : CD