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JN0-349 Questions and Answers

Note! Following JN0-349 Exam is Retired now. Please select the alternative replacement for your Exam Certification. The new exam code is JN0-351

JN0-349 Questions and Answers

Question # 6

Exhibit.

Referring to the exhibit, why is the route for 10.5.5.5 hidden?

A.

It is an L3VPN route.

B.

The next hop cannot be resolved.

C.

It has an invalid community.

D.

It is a Martian route.

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Question # 7

Which statement describes GRES?

A.

GRES requires NSR to function properly.

B.

GRES provides routing loop protection.

C.

GRES provides hardware-level high availability.

D.

GRES rapidly detects link failures.

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Question # 8

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

A.

By default, you must manually clear a BPDU error condition when using BPDU protection.

B.

BPDU protection prevents unauthorized switches from connecting to and participating in your spanning tree topology.

C.

By default, BPDU protection prevents the root bridge from communicating with other STP members unless it receives a superior BPDU first.

D.

BPDU protection requires that STP or RSTP is configured on the switch.

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Question # 9

What are two functions of bridging? (Choose two.)

A.

blocking

B.

aging

C.

listening

D.

forwarding

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Question # 10

Which two statements are true about high availability on Junos devices? (Choose two.)

A.

BFD is faster at detecting failures than default GRE or OSPF timers.

B.

NSR is independent of helper routers to assist the routing platform in restoring routing protocol information.

C.

NSR is dependent on helper routers to assist the routing platform in restoring routing protocol information.

D.

BFD is slower at detecting failures than default GRE or OSPF timers.

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Question # 11

If an EX Series switch receives a frame with a known destination MAC address, what is the expected behavior?

A.

The frame is sent out all ports assigned to the associated VLAN except the ingress port on which the frame was received.

B.

The frame is sent out all ports assigned to all configured VLANs except the ingress port on which the frame was received.

C.

The frame is sent out all trunk ports associated with the ingress VLAN regardless of whether a matching MAC address was found in the bridge table.

D.

The frame is sent out the egress port with a matching destination MAC address within the bridge table associated with the ingress VLAN.

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Question # 12

Click the Exhibit button.

Why is the route shown in the exhibit hidden?

A.

The router cannot reach the protocol next hop.

B.

An MPLS LSP is unavailable.

C.

The router is being rejected through an import policy.

D.

The route is being rejected through an export policy.

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Question # 13

Exhibit:

You have an ESXi host that is connected to ge-0/0/23 on a Juniper EX Series switch. You added a new VM that will also use the same ge-0/0/23 interface. Unfortunately, the new VM is not able to reach external devices.

Referring to the exhibit, which command would solve this problem?

A.

set vlans default switch-options interface-mac-limit 4

B.

set vlans default switch-options interface-mac-limit 5

C.

set switch-options interface ge-0/0/23.0 interface-mac-limit 3

D.

clear ethernet-switching recovery-timeout interface ge-0/0/23.0

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Question # 14

Which two statements about Layer 2 firewall filters are correct? (Choose two.)

A.

You can apply only one firewall filter term per filter.

B.

You can apply only one input filter per VLAN.

C.

You can apply multiple firewall filter terms per filter.

D.

You can apply multiple input filters per VLAN.

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Question # 15

You are configuring IBGP and you must ensure that reachability is maintained between participating routers, even if the physical topology changes.

Which two actions should you perform in this scenario? (Choose two.)

A.

Configure DHCP on all IBGP devices.

B.

Configure an IGP within your IBGP network.

C.

Configure static routes to all IBGP peers.

D.

Configure IBGP peerings to loopback addresses.

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Question # 16

Click the Exhibit button.

You are trying to form an IS-IS adjacency between Router A and Router B, but the IS-IS adjacency will not form between the two routers.

Referring to the exhibit, which action would solve this problem?

A.

Enable level 1 IS-IS routing on Router A.

B.

Enable IS-IS wide metrics on Router A.

C.

Enable level 2 IS-IS routing on Router B.

D.

Enable IS-IS wide metrics on Router B.

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