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JN0-343 Online Practice Questions and Answers

Questions 4

When the DF bit is set, which two actions will a router perform by default on a packet that is larger than the MTU of the interface? (Choose two.)

A. The router drops the packet.

B. The router sends an ICMP MTU exceeded message to the source.

C. The router fragments and forwards the packet.

D. The router generates a syslog message indicating that a packet was dropped due to the exceeded MTU.

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Questions 5

Which three parameters are used by the Junos OS to distinguish traffic flows for load balancing with load-balance per-packet configured? (Choose three).

A. incoming interface

B. destination address

C. destination port

D. source address

E. source port

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Questions 6

You want your switch to disable an edge port when it receives spanning tree communications on that port. Which feature accomplishes this objective?

A. RSTP edge port

B. BPDU protection

C. root protection

D. switch protection

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Questions 7

By default, which VLAN ID value is associated with the default VLAN on EX Series switches?

A. 0

B. 1

C. 32

D. 255

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Questions 8

UESTION NO: 191

You want to configure per-flow equal-cost multipath (ECMP) load balancing for only the OSPF routes on Router-1. Which configuration example accomplishes this?

A. protocols { ospf { export EMCP; } } policy-options { policy-statement ECMP { term first { from protocol ospf; then { load-balance per-packet; } } } }

B. routing-options { export ECMP; } policy-options { policy-statement ECMP { term first { from protocol ospf; then { load-balance per-packet;

}

}

}

}

C. routing-options { forwarding-table { export ECMP; } } policy-options { policy-statement ECMP { term first { from protocol ospf; then { load-balance per-packet; } } } }

D. routing-options { forwarding-table { export ECMP; } } policy-options { policy-statement ECMP { term first { from protocol ospf; then { load-balance ECMP; } } } }

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Questions 9

An IP-IP tunnel must meet which two requirements to function correctly? (Choose two.)

A. The tunnel end points must have a valid route to each other.

B. The tunnel end points must be distributed inside the IGP.

C. A GRE tunnel must be established first to carry the IP-IP tunnel.

D. All devices in between the tunnel end points must have a valid route to the tunnel end points.

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Questions 10

You add a GRE tunnel to transport packets between two routers. After implementing this, you notice an increase in the number of dropped packets. While looking at packet captures, you notice that the do-not-fragment (DF) bit is set in the IP header of all the dropped packets.

What would cause this changed behavior?

A. The GRE tunnel has a lower MTU than the physical interface.

B. GRE tunnels do not support fragmentation.

C. GRE tunnels do not support the DF bit.

D. The GRE tunnel has a higher MTU than the physical interface.

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Questions 11

NO: 223

With which type of IS-IS router can an IS-IS Level 1-only router form an adjacency?

A. any IS-IS Level 1 router of any area

B. any IS-IS Level 2 router of any area

C. any properly configured IS-IS router

D. any IS-IS Level 1 router of the same area

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Questions 12

Which three port states of RSTP are valid? (Choose three.)

A. discarding

B. listening

C. flooding

D. learning

E. forwarding

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Questions 13

You are asked to deploy graceful restart in your OSPF network. What are two requirements to accomplish this task? (Choose two.)

A. All routers must have restarting and helper modes enabled.

B. All routers must have redundant Routing Engines with graceful Routing Engine switchover (GRES) enabled.

C. All routers must be configured for nonstop routing.

D. All routers must support nonstop forwarding.

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Exam Code: JN0-343
Exam Name: Juniper Networks Certified Internet Specialist (JNCIS-ENT)
Last Update: Mar 20, 2024
Questions: 563
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