2014年1月3日星期五

Juniper JN0-643 questions and answers

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Exam Code: JN0-643
Exam Name: Juniper (Enterprise Routing and Switching, Professional (JNCIP-ENT))
Free One year updates to match real exam scenarios, 100% pass and refund Warranty.
Total Q&A: 103 Questions and Answers
Last Update: 2014-01-02

JN0-643 (Enterprise Routing and Switching, Professional (JNCIP-ENT)) Free Demo Download: http://www.it-tests.com/JN0-643.html

NO.1 Which protocol reachability is advertised by OSPFv2?
A. IPv4
B. IPv5
C. IPv6
D. ISO
Answer: D

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NO.2 A user complains about connectivity problems from their IP address (10.1.1.87) to a server
(10.65.1.100).
Which Junos command can help verify connectivity in the network?
A. mroute
B. traceoptions
C. ping
D. clear bgp neighbor
Answer: A

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NO.3 Which option is a valid IPv6 multicast address?
A. fe80::205:8640:471:3200/ 64
B. ::172.16.0.5 /126
C. ff03:365:ba::23
D. ff01:cgfc:345::226:8ff:fee4:bf6f
Answer: C

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NO.4 Port authentication falls back to Captive Portal.
In which two scenarios would the port authentication move back to 802.1X? (Choose two.)
A. if any MAC RADIUS request packet is received on the interface and if there are no sessions in
authenticated/authenticating state
B. if Captive Portal is deactivated on the interface
C. if the user gets logged out
D. if the EAP packet is received on the interface and if there are no sessions in
authenticated/authenticating state
Answer: B,D

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NO.5 A network routes IPv4 traffic only. You want to add IPv6 to the network, but you must use a
single IGP for both IPv4 and IPv6 traffic.
Which protocol meets this requirement?
A. OSPFv2
B. BGPv4
C. ES-ISv1
D. OSPFv3
Answer: D

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NO.6 You are AS 6573.
Which AS path regular expression matches only routes originated in your AS?
A. "6573.*"
B. ".*"
C. "{"
D. "

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