Juniper JN0-649 問題集

質問 1：
You are asked to deploy 802.1X on your EX Series switches. You need to ensure authenticated devices continue to have access to the network even if the authentication server fails.
Which action meets this configuration objective?
A. Configure the server fail fallback with a value of sustain.
B. Set the reauthentication interval to a value of disable.
C. Configure the static MAC bypass for the authentication server.
D. Set the reauthentication interval to a value of 0.
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 2：
Click the Exhibit button.

Referring to the exhibit, the source is currently sending multicast traffic using group 224.1.1.1, which is being received by R1. R2 is not receiving PIM register messages.
What would be the cause of this problem?
A. Tunnel services have not been enabled on R1.
B. R5 has not received an IGMP report of 224.1.1.1.
C. A(*,G) tree has not been built yet.
D. All routers have not been configured with the same Auto-RP discovery group.
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 3：
Referring to the exhibit, there are multiple ASM groups in the 224 0 0.0/4 range Which configuration change is needed to ensure R1 is always the RP for group 224.224.1.1?


A. Set the priority on R1 to zero
B. Configure R1 with a higher local RP address
C. Ensure R1 has a more specific group range
D. Increase the priority on R1 to higher than R2
正解：D

質問 4：
Juniper devices use the token bucket algorithm for policing. Which two statements are true regarding the token bucket algorithm? (Choose two.)
A. Policers do not reduce the speed of an interface.
B. Policers transmit streams of traffic at the maximum interface speed until the burst rate is reached.
C. Policers reduce the speed of an interface.
D. Policers enforce gaps between transmitted packets.
正解：A,D

質問 5：
Referring to the exhibit, which statement is correct?

A. The route is learned from a multipath BGP session.
B. The route is learned from three different neighbors.
C. The route is learned from only one neighbor.
D. The route is learned from a multihop BGP session.
正解：C

質問 6：
Which two statements about BGP communities are true? (Choose two.)
A. A BGP device can set, append, or modify the community of a route.
B. A prefix can only belong to one community.
C. A prefix can belong to more than community.
D. A community is not a transitive attribute.
正解：A,B

質問 7：
What is the correct authentication processing order on EX Series switches when multiple Layer 2 authentication methods are enabled?
A. 802.1x-> captive portal -> MAC RADIUS
B. 802.1x -> MAC RADIUS -> captive portal
C. MAC RADIUS -> 1x -> captive portal
D. captive portal-> MAC RADIUS -> 802.1x
正解：B

質問 8：
Which address range is used for source-specific multicast?
A. 233.0.0.0/8
B. 239.0.0.0/8
C. 224.2.0.0/16
D. 232.0.0.0/8
正解：D
解説: (Topexam メンバーにのみ表示されます)