Juniper JN0-661 問題集

質問 1：
Click the Exhibit button.

You are using PIM-SM in your network and want to ensure that all available equal-cost paths are being used for multicast traffic.
Referring to the exhibit, where must you configure the PIM join-load-balance parameter to achieve this goal?
A. R1, R2, R4, and R5
B. R4 and R5
C. R2, R4, and R5
D. R4
正解：D

質問 2：
-- Exhibit -

-- Exhibit --
Click the Exhibit button.
Referring to the VPLS network shown in the exhibit, you notice that only one of the two CE sites configured under the VPLS instance forms a connection to the remote site. The other site remains in a forwarding and learning mode.
How does PE1 determine which CE within the VPLS instance forms the connection to the remote site?
A. The site with a lower interface index value will form the connection.
B. The site with the lowest site ID will form the connection.
C. The site that first distributes the outgoing label to the remote site will form the connection.
D. The site with a higher interface index value will form the connection.
正解：B

質問 3：
During a network migration window, an engineer issues the set protocols isis overload timeout 1200 command.
In this scenario, which effect does this have on the IS-IS operations of the router?
A. After the first IS-IS adjacency forms, the overload bit is set for 1200 seconds.
B. When the IS-IS protocol starts, the overload bit is set after the timer of 1200 seconds expires.
C. When the IS-IS protocol starts, the overload bit is set for 1200 seconds.
D. After the first IS-IS adjacency forms, the overload bit is set after the timer of 1200 seconds expires.
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 4：
Click the Exhibit button.

Referring to the exhibit, which LDP Layer 2 circuit configuration on PE1 maps traffic to an LSP destined to the secondary loopback address of PE2?
A. [edit protocols l2circuit]user@PE1# showneighbor 10.10.10.2 {interface ge-1/1/1.1 {psn- tunnel-endpoint 10.10.10.2;virtual-circuit-id 1;encapsulation-type ethernet-vlan;}}
B. [edit protocols l2circuit]user@PE1# showneighbor 10.10.10.2 {interface ge-1/1/1.1
{virtual-circuit-id 1;encapsulation-type ethernet-vlan;}}
C. [edit protocols l2circuit]user@PE1# showneighbor 10.10.10.1 {interface ge-1/1/1.1 {psn- tunnel-endpoint 10.10.10.2;virtual-circuit-id 1;encapsulation-type ethernet-vlan;}}
D. [edit protocols l2circuit]user@PE1# showneighbor 10.10.10.2 {interface ge-1/1/1.1 {psn- tunnel-endpoint 10.10.10.1;virtual-circuit-id 1;encapsulation-type ethernet-vlan;}}
正解：A

質問 5：
-- Exhibit -

-- Exhibit --
Click the Exhibit button.
In the exhibit, an OSPF virtual link is established between R2 and R3. However, R4 cannot reach any external destinations.
What must you do you allow R4 to reach external destinations?
A. Area 1 must be configured as a standard OSPF area.
B. Area 1 must be configured as a stub area.
C. The virtual link must be configured under Area 1.
D. Area 1 must be configured to use the Type 3 LSAs as the default LSA.
正解：A