Juniper JN0-649 問題集

質問 1：
You ate configuring BGP policies for a site with a dual-homed connection as shown in the exhibit.
You must ensure that inbound traffic from Internet hosts flow through the ISP A connection.
Which statement is correct in this scenario?

A. Apply a BGP export policy on R1 to assign a higher local preference value to routes advertised to ISP A.
B. Apply a BGP export policy onR2to assign a lower origin value to routes advertised to ISP B.
C. Apply a BGP export policy to R2 to prepend [65001 65001 65001 65001 65001] to the AS path of routes advertised to ISP B.
D. Apply a BGP export policy on R1 to assign a lower MED value to routes advertised to ISP A.
正解：C

質問 2：
You are implementing CoS for a custom application that is labeling its packets with DSCP code- point 101111. You have applied the configuration shown in the exhibit, but not that while some custom application traffic ingressin on ge-0/0/1 transits the SRX Series device successfully, packets ingressing all other ge-* interfaces are being dropped.
Which action should you take to solve this problem?


A. Remove the BA classifier from all ge-interfaces.
B. Configure a scheduler and scheduler map for expedited-forwarding and apply to all interfaces.
C. Modify the BA classifier to assign code point 101111 to loss priority low.
D. Apply the rate-limit-ef policer to all ge-interfaces.
正解：D

質問 3：
You have applied the CoS configuration shown in the exhibit to an EX4300 switch.
Which two statements are true? (Choose two.)


A. Packets in low priority queues are serviced when strict-high priority queues have no available credits
B. All strict-high priority queues are serviced in a round-robin fashion as long as they have remaining credits
C. Packets in low priority queues transmit only when start-high priority queues are empty
D. All strict-high priority queues are serviced in a round-robin fashion regardless of available credits.
正解：B,C

質問 4：
You are asked to troubleshoot voice quality issues on your newly implement VoIP network. You notice that the voice packets are being dropped. You have verified that the packets are correctly marked for expedited forwarding queue.
Referring to the exhibit, what must you configure to solve the problem?



A. You must configure a rewrite rule to ensure that the traffic is scheduled properly in the device.
B. You must configure a multifield classifier to put the VoIP traffic in the correct queue.
C. You must configure a policer to ensure that the queue is not being starved.
D. You must configure a scheduler to allocate bandwidth to the expedited forwarding queue.
正解：D

質問 5：
Your company has expanded into office space across the street. The new office space has a single Ethernet connection connected to an unmanaged switch. You must sort traffic based on the IP address into different VLANs once the traffic arrives on your EX Series switches.
Which mechanism would you use to accomplish this task?
A. MVRP
B. dynamic VLANs
C. filter-based VLANs
D. Q-in-Q tunneling
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 6：
Which three configuration parameters must match on all switches within the same MSTP region?
(Choose three.)
A. revision level
B. VLAN to instance mapping
C. region name
D. bridge priority
E. configuration name
正解：A,B,C
解説: (Topexam メンバーにのみ表示されます)

質問 7：
Referring to the configuration shown in the exhibit, how many of the routes received from 10.0.0.2 will be active in the routing table?

A. 2
B. 3
C. 8
D. 5
正解：B

質問 8：
Your campus EX9200 core devices are highly oversubscribed on bandwidth ans reporting massive dropped packets.
To immediately address the issue, you decide to implement shaping on all interfaces.
Which action will accomplish?
A. Define a CoS input traffic control profile with the shape-rate 5G parameter and apply it to all interfaces.
B. Define a CoS output traffic control profile with the shape-rate 5G parameter and apply it to all interfaces.
C. Apply the input-shape-rate 5G parameter to all interfaces under the [edit class-of service] hierarchy.
D. Apply the shape-rate 5G parameter to all interfaces under the [edit class-of service] hierarchy.
正解：B
解説: (Topexam メンバーにのみ表示されます)