Juniper JNCIS-ENT Certification JN0-351 Exam Dumps – Best Practice Questions on Actual Enterprise Routing and Switching, Specialist Exam

1. What are three reasons a router would send out an IS-IS link-state PDU? (Choose three.)

2. You have an OSPF NSSA area that is also receiving IS-IS routes on the ASBR.

In this scenario, which LSA type is used to announce external IS-IS routes?

3. You are a service provider and have multiple customers in a building.

You are installing a new switch that can host all of your customers. However, you would like to ensure that one customer cannot see or broadcast to another customer.

You would also like to have them use a common gateway IP address from the building.

What should be used to provide this access?

4. You are troubleshooting OSPF issues on your device.

You run a trace log and receive the error shown in the exhibit.

What would case this error?

5. Click the Exhibit button.

Referring to the exhibit, which set of interfaces is enabled for Ethernet switching?

6. Your BGP router receives routes from two upstream ISPs: ISP A and ISP B.

In this scenario, which change would you make to prefer routes from ISP A?

7. What kind of filter would be written to protect control traffic destined for the switch?

8. Which three link-specific fields must match between OSPF neighbors before they form an adjacency over a broadcast medium? (Choose three.)

9. What types of authentication are supported in Junos for OSPF?

10. Click the Exhibit button.

Referring to the exhibit, which statement is correct?

11. What are two Layer 2 firewall filter types? (Choose two.)

12. When electing a DIS in an IS-IS network, what is used to break a priority tie?

13. Which OSPF area type receives only the default route from the backbone?

14. Click the Exhibit button.

You are responsible for managing a Layer 2 network using RSTP for loop prevention. You recently committed the configurations shown in the exhibit. Unfortunately, Switch-2 became the root bridge and you must ensure that Switch-1 becomes the root bridge, when available, for this RSTP topology.

Referring to the exhibit, which configuration change should be performed?

15. You have an IBGP neighbor sending you routes. You need to apply a policy so it only evaluates routes being learned from this specific neighbor.

In this scenario, which statement is correct about applying the policy?

16. Click the Exhibit button.

Referring to the exhibit, what does the asterisk (*) following the ge-0/0/5.0 interface indicate?

17. Click the Exhibit button.

You are implementing the network shown in the exhibit. You must ensure that all users can communicate with each other.

What are three steps that should be taken in this scenario? (Choose three.)

18. Which two statements about Martian addresses are correct? (Choose two.)

19. You are asked to configure filter-based forwarding (FBF) to forward traffic sourced from a specific subnet to a webserver.

In this scenario, which mechanism is used to add interface routes to the forwarding routing instance used in FBF?

20. What are two interarea OSPF LSA types? (Choose two.)

21. Which two statements about aggregate routes in the Junos OS are correct? (Choose two.)

22. Which mechanism is used to share routes between routing tables?

23. Which two statements about a unified ISSU are correct? (Choose two.)

24. The next hop for the route is not reachable.

In this scenario, what are two ways that BGP handles this route? (Choose two.)

25. Click the Exhibit button.

A routing table contains multiple BGP routes to the same destination prefix. The route preference is the same for each route.

Referring to the exhibit, which route would be selected?

26. Click the Exhibit button.

Referring to the output shown in the exhibit, which two statements are correct? (Choose two.)

27. Click the Exhibit button.

You are building a network and make some configuration changes. While trying to validate these changes, you receive the error shown in the exhibit.

How would you solve this problem?

28. Click the Exhibit button.

Referring to the exhibit, which type of route is displayed?

29. By default, how long will a learned MAC address be retained in the bridge table on an EX Series switch?

30. Which two statements about BPDU protection are correct? (Choose two.)

31. Routet-1 and Router-2 must connect through the Internet using a tunneling technology.

Hosts that are connected to Router-1 and Router-2 will be sending traffic up to 1500 bytes.

The maximum segment size that is supported across the path is 1520 bytes.

Which tunneling technology will allow this communication to take place?

32. Exhibit.

You are attempting to set up VRRP with R1 and R2 being participating members. You want R1 to be the master router and R2 to be the backup router with the virtual router they create being at address 172.25.100.1. The virtual router is not pinging from either User A or User B.

Referring to the exhibit, what must be done to correct the problem?

33. Click the Exhibit button.

Referring to the exhibit, which port will be selected as the RSTP root port on Switch-4?

34. Click the Exhibit button.

Which type of route is shown in the exhibit?

35. Which two statements about the root bridge election process are correct? (Choose two.)

36. You are concerned that someone from outside the company could use an open conference room port to access the network.

Which feature should you use to address this concern?

37. Which statement is true about IP-IP tunnels?

38. Which three statements describe what happens when processing a frame for a switched packet? (Choose three.)

39. You are deploying a new switch configuration at a small branch using EX3400 Series switches. You are concerned about loop prevention.

In this scenario, which configuration would you deploy?

40. Click the Exhibit button.

Which two statements about the configuration shown in the exhibit are correct? (Choose two.)