Juniper JN0-648 問題集

質問 1：
You are deploying PIM source-specific multicast (SSM) for a new multicast messaging service. You have configured the multicast source to use 235.44.123.100 as the multicast address. You are not able to join the PIM SSM multicast feed.
Which two solutions would resolve this problem? (Choose two.)
A. Reconfigure the multicast source to use an address in the range of 232.0.0.0 through 232.255.255.255.
B. Add the multicast address to the [edit routing-options multicast ssm-groups] stanza.
C. Reconfigure the multicast source to use an address in the range of 224.0.0.0 through 224.255.255.255.
D. Add the multicast address to the [edit routing-options multicast ssm-map] stanza.
正解：A,B

質問 2：
Exhibit.

YourNet is learning the 210.210.40.0/24 route from Provider A and Provider B YourNet would like to forward traffic destined to the 210.210.40.0/24 networking using Provider B.
Referring to the exhibit, how would you accomplish this task?
A. Add the well-known no-export community to the routes learned through R1.
B. Add the well-known no-export community to the routes learned through R2.
C. Apply an export policy to R2's IBGP peers to set a Their local preference.
D. Apply an export policy to R1's IBGP peers to set a higher local preference.
正解：C

質問 3：
Exhibit.

Referring to the exhibit, which two statements are true? (Choose two )
A. There is no need for a DR for the ge-0/0/0 interface.
B. There can be more than one OSPF neighbor on the ge-0/0/0 interface
C. The DR election process is not finished for the ge-0/0/0 interface
D. There can be more than one OSPF neighbor on the ge-0/0/1 interface.
正解：A,D
解説: (Topexam メンバーにのみ表示されます)

質問 4：
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 5：
Click the Exhibit button.

Referring to the exhibit, which statement is true?
A. The current device is authenticated using MAC RADIUS
B. Only 802. 1X authentication will be used for devices connecting to ge-0/0/15
C. The current device was allowed after authentication attempts to the RADIUS server failed
D. Additional users will automatically be allowed to connect to ge-0/0/15
正解：C

質問 6：
Exhibit.

You are configuring, the PVLAN feature on your switches. The PVLAN will span the two EX Series switches shown in the exhibit Which three configuration parameters must be enabled on the ports connecting the two switches? (Choose three. )
A. interface-mode access
B. family inet
C. inter-switch-link
D. interface-mode trunk
E. family Ethernet-switching
正解：C,D,E

質問 7：
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

質問 8：
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)