Juniper JN0-649 Exam Dumps

Juniper JN0-649 Sample Question Answers

Juniper JN0-649 Sample Questions

Question # 1

You are deploying IP phones in your enterprise networks. When plugged in, the IP phones must be automatically provided with the correct VLAN ID needed for sending voice traffic to the EX Series switches. In this scenario, which two solutions are required to accomplish this task? (Choose two.)

A. Enable LLDP-MED on appropriate access interfaces.  
B. Create two VLANs and assign them as VLAN members to the appropriate access interfaces. 
C. Enable the voice VLAN feature with the appropriate access interfaces and VLAN ID for voice traffic. 
D. Use LLDP on appropriate interfaces.  

Answer: A,C

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Question # 2

Your network is multihomed to two ISPs. The BGP sessions are established; however, the ISP peers are not receiving any routes. Which two statements are correct about troubleshooting your configuration? (Choose two.)

A. Verify the import policies on your router.  
B. Verify that the BGP routes are active in your routing table.  
C. Verify the export policies on your router.  
D. Verity that the multi hop settings are configured on your router.  

Answer: C,D

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Question # 3

BGP multipath or multi hop are not configured in your network. In this scenario, what is the correct sequence for BGP active route selection?

A. higher local preference      shortest AS path     lowest peer address      lowest router ID     lower origin code 
B. higher local preference     shortest AS path     lower origin code     lowest router ID     lowest peer address 
C. higher local preference      lowest router ID      lowest peer address      lower origin code      shortest AS path 
D. higher local preference     shortest AS path     lowest router ID     lowest peer address     lower origin code 

Answer: B

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Question # 4

Which statement is correct about IS-IS? 

A. IS-IS uses areas and an autonomous system.  
B. Level 1/2 routers automatically inject a default route to the nearest Level 1 router.  
C. Level 2 routers must share the same area address.  
D. Level 1 routers route traffic between autonomous systems.  

Answer: A

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Question # 5

Your enterprise network is running BGP VPNs to support multitenancy. Some of the devices with which you peer BGP do not support the VPN NLRI. You must ensure that you do not send BGP VPN routes to the remote peer. Which two configuration steps will satisfy this requirement? (Choose two.)

A. Configure an import policy on the remote peer to reject the routes when they are received. 
B. Configure an export policy on the local BGP peer to reject the VPN routes being sent to the remote peer. 
C. Configure a route reflector for the VPN NLRI.  
D. Configure the apply-vpn-export feature on the local BGP peer.  

Answer: B,D

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Question # 6

There are two BGP routes to 10.200.200.0/24 received from twoexternal 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 peer IP address.  
B. Route 2 will be active because of the peer IP address.  
C. Route 1 will be active because of the router ID.  
D. Route 2 will be active because of the router ID.  

Answer: C

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Question # 7

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. stub area  
D. non-to-stubby area  

Answer: B

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Question # 8

Your organization has recently acquired another company. You must carry all of the company’s existing VLANs across the corporate backbone to the existing branch locations without changing addressing and with minimal configuration. Which technology will accomplish this task?

A. Q-in-Q all-in-one bundling  
B. PVLAN isolated VLAN  
C. MVRP registration normal  
D. EVPN-VXLAN any cast gateway  

Answer: A

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Question # 9

You are using 802.1X authentication in your network to secure all ports. You have a printer that does not support 802.1X and you must ensure that traffic is allowed to and from this printer without authentication. In this scenario, what will satisfy the requirement?

A. MAC filtering  
B. MACsec  
C. static MAC bypass  
D. MAC RADIUS  

Answer: C

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Question # 10

You are asked to configure 802.1X on your access ports to allow only a single device to authenticate. In this scenario, which configuration would you use?

A. single supplicant mode  
B. multiple supplicant mode  
C. single-secure supplicant mode  
D. MAC authentication mode  

Answer: C

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Question # 11

 What are two similarities between OSPFv2 and OSPFv3? (Choose two.)

A. virtual links  
B. support for multiple instances per link  
C. 32-bit router ID  
D. protocol processing per link, not per sub net  

Answer: A,C

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Question # 12

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. STP  
B. MSTP  
C. VSTP  
D. RSTP  

Answer: B

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Question # 13

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. MAC RADIUS  
B. captive portal  
C. 802.1X with single-secure supplicant mode  
D. 802.1X with multiple supplicant mode  

Answer: A

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Question # 14

When using wide metrics, which two statements about route advertisement between IS-IS levels are correct?(Choose two.) 

A. Level 1 and Level 2 routers do not advertise Level 2 routes into the Level 1 area by default. 
B. Level 1 routes are advertised to Level 2 routers by default.  
C. If wide-metrics-only is configured, Level 1 routes are not advertised to Level 2 routers by default.
D. Level 1 routes advertised as external routes into Level 1 are not advertised to any Level 2 routers by default. 

Answer: A,C

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Question # 15

Which two statements are correct about the deployment of EVPN-VXLAN on QFX Series devices?(Choose two.)

A. Type 1 route advertisements always have the single-active flag set to 1.  
B. Junos OS supports underlay replication for BUM traffic forwarding.  
C. Junos OS supports ingress replication for BUM traffic forwarding.  
D. Type 1 route advertisements always have thesingle-active flag set to 0.  

Answer: C,D

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