Juniper JN0-648 問題集

質問 1：
A BA classifier, input policer, and a multifield classifier are applied to an interface in which order are these features processed?
A. policer > multifield classifier -> BA classifier
B. BA classifier -> multifield classifier -> policer
C. multifield classifier -> BA classifier -> policer
D. policer -> BA classifier -> multifield classifier
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 2：
When configuring 802.1X authentication, what are three server fail fallback settings? (Choose three.)
A. move
B. count
C. permit
D. sustain
E. log
正解：A,C,D
解説: (Topexam メンバーにのみ表示されます)

質問 3：
You have PIM SM multicast configure and running in a network environment comprised of EX4300 devices. Your customer report increased delay when switching channels using IPTV. To help decrease the delay, you implement PIM join balancing. You add the set protocol pim join-load-balance command to the configuration. After committing, you notice that the flows are still using one path.
In this scenario, which statement is correct?
A. The clear pim join-distribution command must be issued.
B. IGMP snooping must be configured.
C. PIM join load-balancing also be configured.
D. The interface must be specified to use for load balancing
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 4：
You must ensure that all management traffic sourced from your Junos devices is set with a specific DSCP code-point value.
Which action will accomplish this task?
A. Apply the DSCP code-point in an egress policer.
B. Apply the DSCP code-point to a rewrite rule.
C. Apply the DSCP code-point to the [edit class-of-service interface lo0.0] hierarchy
D. Apply the DSCP code-point to the [edit class-of-service host-outbound-traffic] hierarchy.
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 5：
You notice a mass withdrawal of routes for some of the network hosts. You determine that the link on the ESI interface is down.
Which route type is used in this scenario?
A. Type 2
B. Type 1
C. Type 5
D. Type 3
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 6：
Exhibit.


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 7：
In IS-IS advertising POUs with the overload bit has which effect?
A. The local device's POUs are marked with a metric of 65535
B. The local device will no longer be used for transit traffic
C. The ISIS adjacencies become passive
D. The IS-IS adjacencies enter the "new" state
正解：B

質問 8：
Which two statements are true about IS-IS levels? (Choose two.)
A. Level 2 systems do not advertise Level 2 routes into a Level area by default.
B. Level 1 systems use a default route to reach AS external routes located in other areas.
C. Level 1 system only from adjacencies with other systems that have different area IDs.
D. Level 2 systems must use the loopback address as a part of the ISO network address.
正解：A,B
解説: (Topexam メンバーにのみ表示されます)