Juniper JN0-349 問題集

質問 1：
Which two statements about Layer 2 loop prevention protocols are correct? (Choose two.)
A. STP can take 30 to 50 seconds to respond to a topology change.
B. RSTP can take 30 to 50 seconds to respond to a topology change.
C. STP distributes the current tree topology using the root bridge.
D. RSTP distributes the current tree topology using the root bridge.
正解：A,D

質問 2：
The next hop for the route is not reachable.
In this scenario, what are two ways that BGP handles this route? (Choose two.)
A. The route is placed into the forwarding table as a hidden route.
B. The route is placed into the routing table as a hidden route.
C. The route is not placed into the forwarding table.
D. The route is placed into the forwarding table as an inactive route.
正解：B,C

質問 3：
Click the Exhibit button.

Referring to the exhibit, which set of interfaces is enabled for Ethernet switching?
A. ge-0/0/6 and ge-0/0/8
B. ge-0/0/6, ge-0/0/7, and ge-0/0/8
C. ge0/0/6, ge-0/0/7, ge-0/0/8, and ge-0/0/10
D. ge-0/0/6, ge-0/0/8, and ge-0/0/10
正解：C

質問 4：
Each PC and IP phone in your network is connected to a switch using the same port. All incoming data traffic is untagged and belongs to the v10 VLAN, while traffic coming from the IP phones is tagged with a VLAN value of 20 and should belong to the v20 VLAN on your switch.
In this scenario, which statement is correct?
A. You must enable LLDP-MED on the incoming interfaces and assign the v20 VLAN.
B. You must enable the guest VLAN feature on the incoming interfaces and assign the v20 VLAN.
C. You must enable the voice VLAN feature on the incoming interfaces and assign the v20 VLAN.
D. You must enable an IRB interface and assign it to the v10 and v20 VLANs.
正解：C

質問 5：
What BGP attribute is mostly likely to influence a remote AS that you do not peer with?
A. This is not possible given the local scope of BGP
B. MED
C. Local preference
D. AS path
正解：D

質問 6：
Click the Exhibit button.

Referring to the exhibit, Router 1 learns about Route X.
Which statement is correct about Route X when using the default BGP advertisement rules?
A. R1 will not advertise this route to any peers.
B. R2 will not advertise this route to R3 without an explicit policy.
C. R4 and R5 will not advertise this route to each other.
D. R3 will not advertise this route to R4 or R5 without an explicit policy.
正解：C

質問 7：
An EBGP session sources its TCP connection from which IP address?
A. The IP address of the preferred address assigned to the loopback interface.
B. The IP address of the interface that connects the two BGP speakers.
C. The IP address of the primary address assigned to the loopback interface.
D. The IP address assigned as the router ID.
正解：B

質問 8：
Click the Exhibit button.

Your company has connections to two ISPs. Each ISP is in a separate routing instance. You need to advertise the 0.0.0.0/0 prefix from both ISPs to all your devices.
Referring to the exhibit, which statement is true in this scenario?
A. You must create an internal routing instance for your network.
B. You must create and apply match input filters on interfaces ge-0/0/2 and ge-0/0/3.
C. You must create a RIB group to share interface routes.
D. You must create a policy to allow traffic from your network to each ISP.
正解：C