JN0-351 実際試験問題と解答 - 模擬練習 - 受験自信を増やす

Question No : 1
Which two types of tunnels are able to be created on all Junos devices? (Choose two.)

A.STP
B.GRE
C.IP-IP
D.IPsec

正解:

Question No : 2
What is a purpose of using a spanning tree protocol?

A.to look up MAC addresses
B.to eliminate broadcast storms
C.to route IP packets
D.to tunnel Ethernet frames

正解:

Question No : 3
Which two statements are correct about generated routes? (Choose two.)

A.Generated routes require a contributing route.
B.Generated routes show a next hop in the routing table.
C.Generated routes appear in the routing table as static routes.
D.Generated routes cannot be redistributed into dynamic routing protocols.

正解:

Question No : 4
What is the default MAC age-out timer on an EX Series switch?

A.30 minutes
B.30 seconds
C.300 minutes
D.300 seconds

正解:

Question No : 5
Which statement is correct about the IS-IS ISO NET address?

A.An ISO NET address defined with a system ID of 0000.0000.0000 must be selected as the DI
B.An ISO NET address must be unique for each device in the network.
C.You can only de ne a single ISO NET address per device.
D.The Area ID must match on all devices within a L2 area.

正解:

Question No : 6
Which two statements about BGP facilitate the prevention of routing loops between two autonomous systems? (Choose two.)

A.EBGP routers will append their AS number when advertising routes to their neighbors.
B.EBGP routers will only accept routes that contain their own AS number in the AS_PAT
C.EBGP routers will drop routes that contain their own AS number in the AS_PAT
D.EBGP routers will prepend their AS number when advertising routes to their neighbors.

正解:

Question No : 7
You are attempting to Configure the initial two aggregated Ethernet interfaces on a router but there are no aggregated Ethernet interfaces available.
In this scenario, which configuration will enable these interfaces on this router?
A)

B)

C)

D)

A.Option A
B.Option B
C.Option C
D.Option D

正解:

Question No : 8
Which two statements about redundant trunk groups on EX Series switches are correct? (Choose two.)

A.Redundant trunk groups load-balance traffic across two designated uplink interfaces.
B.If the active link fails, then the secondary link automatically takes over.
C.Layer 2 control traffic is permitted on the secondary link.
D.Redundant trunk groups must be connected to the same aggregation switch.

正解:

Question No : 9
Two routers share the same highest priority and start time.
In this situation, what is evaluated next when determining the

A.The router with the lowest router ID become the D
B.The router with the highest router ID becomes the D
C.The routers perform another DR election.
D.The router with the highest MAC address become the D

正解:

Question No : 10
In RSTP, which three port roles are associated with the discarding state? (Choose three.)

A.root
B.backup
C.alternate
D.disabled
E.designated

正解:

Question No : 11
You are concerned about spoofed MAC addresses on your LAN.
Which two Layer 2 security features should you enable to minimize this concern? (Choose two.)

A.dynamic ARP inspection
B.IP source guard
C.DHCP snooping
D.static ARP

正解:

Question No : 12
Referring to the output shown in the exhibit, which statement is correct?

A.The state is normal for a DR neighbor.
B.The state is normal for a DRother neighbor.
C.An MTU mismatch exists between the OSPF neighbors.
D.An area ID mismatch exists between the OSPF neighbors.

正解:

Question No : 13
A new network requires multiple topology support. You decide to use IS-IS in this situation.
Which three protocol topologies are supported in this scenario? (Choose three.)

A.IPsec
B.anycast
C.IPv6
D.multicast
E.IPv4

正解:

Question No : 14
Referring to the exhibit, why is this OSPF adjacency remaining in this state?

A.A subnet mask mismatch exists between the OSPF neighbors.
B.An MTU mismatch exists between the OSPF neighbors.
C.A hello interval mismatch exists between the OSPF neighbors
D.An area ID mismatch exists between the OSPF neighbors.

正解:

Question No : 15
You are receiving the BGP route shown in the exhibit from four different upstream ISPs.

Referring to the exhibit, which ISP will be selected as the active path?

A.ISP 1
B.ISP 3
C.ISP 4
D.ISP 2

正解:

Juniper JN0-351 問題練習