JN0-648 実際試験問題と解答 - 模擬練習 - 受験自信を増やす

Question No : 1
You are using 802.1X in your access network consisting of EX Series switches. You recently had a failure with your RADIUS server which resulted in authenticating client devices being denied access to the network. You want to change this behavior so that authenticating clients are directed to a remediation VLAN.
Which RADIUS server failback setting satisfies this requirement?

A.permit
B.move
C.sustain
D.deny

正解:

Question No : 2
Click the Exhibit button.

The policy shown in the exhibit is applied as an export policy to your BGP neighborship.
Which action will be taken for route 12.233.45.5?

A.It will be evaluated by the next policy.
B.It will be accomplished by term 1.
C.It will be accepted by term 1.
D.It will be rejected by term 2.
E.It will be accepted by the default policy

正解:

Question No : 3
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 0.
C.Configure the static MAC bypass for the authentication server.
D.Set the reauthentication interval to a value of disable.

正解:

Question No : 4
which protocol is a multicast routing protocol?

A.OSPF
B.BGP
C.PIM
D.IS-IS

正解:

Question No : 5
You are enabling MSTP in your Layer 2 network to prevent loops.
In this scenario, which three parameters must match on all switches in the network? (Choose three. )

A.configuration name
B.bridge priority
C.MSTI-to-VLAN mapping
D.max age
E.revision level

正解:

Question No : 6
You have an IPv4 multicast network configured as PIM-SM.
What must be done before replacing your static RP with auto-RP?

A.Enable sparse-dense mode on each of the routers in the network.
B.Configure auto-RP domains on each router in the network.
C.Configure each router in the network as a candidate BS
D.Enable each router in the network to forward multicast packets.

正解:

Question No : 7
Which statement is correct about MSTP?

A.MSTP enables mapping multiple independent spanning tree instances onto one physical topology
B.MSTP enables dynamic discovery of Layer 2 neighbors.
C.MSTP dynamically manages VLAN registration in a LAN
D.MSTP uses slacked VLAN tags to extend a Layer 2 Ethernet connection between multiple sites

正解:

Question No : 8
Exhibit.

A router is attempting to form an OSPF neighborship with another router. However, the OSPF neighborship fails to establish completely.
Referring to the exhibit, what is the problem?

A.There is an OSPF area mismatch
B.There is an interface MTU mismatch
C.There is an interface subnet mask mismatch
D.There is an interface type mismatch

正解:

Question No : 9
You are redistributing static routes into an OSPF area.
Which two statement are true is this scenario? (Choose two.)

A.The external route advertisements have a domain scope.
B.The area must be stub area.
C.The area must be the backbone area.
D.The routes can be advertised in type 7 LSAs.

正解:

Question No : 10
Click the Exhibit button.

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

正解:

Question No : 11
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 to the [edit class-of-service host-outbound-traffic] hierarchy.
B.Apply the DSCP code-point to the [edit class-of-service interface lo0.0] hierarchy
C.Apply the DSCP code-point in an egress policer.
D.Apply the DSCP code-point to a rewrite rule.

正解:

Question No : 12
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 2 systems must use the loopback address as a part of the ISO network address.
C.Level 1 system only from adjacencies with other systems that have different area IDs.
D.Level 1 systems use a default route to reach AS external routes located in other areas.

正解:

Question No : 13
Which two statements about BGP communities are true? (Choose two.)

A.A prefix can only belong to one community.
B.A prefix can belong to more than community.
C.A community is not a transitive attribute.
D.A BGP device can set, append, or modify the community of a route.

正解:

Question No : 14
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 R2.
B.Apply an export policy to R1's IBGP peers to set a higher local preference.
C.Add the well-known no-export community to the routes learned through R1.
D.Apply an export policy to R2's IBGP peers to set a Their local preference.

正解:

Question No : 15
Your IPv4 multicast network uses different MX Series routers for the source DR and the PIM sparse-mode RP.
What is required before PIM register messages are exchanged between the DR and RP routers?

A.Add a tunnel services PIC to the RP router.
B.Add an adaptive services PIC to the DR router.
C.Enable tunnel services on the DR and RP routers.
D.Configure PIM encapsulation on the DR and RP routers.

正解:

Juniper JN0-648 問題練習