Juniper JN0-648 問題集

質問 1：
In a Layer 2 environment where 802.1X is deployed, which two statements are correct? (Choose two.)
A. RADIUS messages are exchanged between the authenticator and the authentication server.
B. Extensible Authentication Protocol messages are exchanged between the supplicant and the authenticator.
C. Extensible Authentication Protocol messages are exchanged between the authenticator and the authentication server.
D. RADIUS messages are exchanged between the supplicant and the authenticator.
正解：A,B
解説: (Topexam メンバーにのみ表示されます)

質問 2：
You are deploying IP phones to a customer site. The IP phones will be installed to share a common access port with the user's desktop computer. You are required to provide a mechanism to place user data traffic and voice traffic in different VLANs for class-service application How would you implement this solution?
A. Configure VLAN tagging on the IP phones and use the voice VLAN feature on the access ports to assign lagged frames to the voice VLAN and untagged frames to a data VLAN
B. Configure flexible VLAN tagging on the user ports with the data and voice VLANs as members
C. Configure the IP phones to label voice traffic with the DSCP of code point and apply a BA classifier to the access ports to classify voce traffic
D. Apply a multifield classifier on the access ports that assigns voice packets to the assured forwarding class, based on the IP phone manufacturer's MAC QUI
正解：A

質問 3：
Exhibit.

Referring to the exhibit, which two statements are true with regards to deploying CoS? (Choose two.)
A. You should apply BA classifiers on the LAN-facing interfaces of the routers
B. You should apply MF classifiers on the LAN-facing interfaces of the routers
C. You should apply MF classifiers on the point-to-point interfaces of the routers
D. You should apply BA classifiers on the point-to point interfaces of the routers.
正解：B,D
解説: (Topexam メンバーにのみ表示されます)

質問 4：
You are redistributing static routes into an OSPF area.
Which two statement are true is this scenario? (Choose two.)
A. The area must be the backbone area.
B. The routes can be advertised in type 7 LSAs.
C. The area must be stub area.
D. The external route advertisements have a domain scope.
正解：B,D

質問 5：
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 6：
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 7：
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.
D18912E1457D5D1DDCBD40AB3BF70D5D
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 8：
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