Juniper JN0-351 問題練習

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

答えを確認する

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

答えを確認する

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.

答えを確認する

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

答えを確認する

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.

答えを確認する

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.

答えを確認する

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

答えを確認する

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.

答えを確認する

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

答えを確認する

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

答えを確認する

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

答えを確認する

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.

答えを確認する

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

答えを確認する

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.

答えを確認する

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

答えを確認する

正解: