JN0-643 Juniper

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Sample Questions

Free JN0-643 Sample Question 1

Which connection method do OSPF routers use to communicate with each other?

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Free JN0-643 Sample Question 2

Which statement is true about default BGP route redistribution behavior?

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Free JN0-643 Sample Question 3

In a PIM-SM network, which type of node helps to build a tree towards an unknown multicast source?

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Free JN0-643 Sample Question 4

Which statement is true about MVRP?

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Free JN0-643 Sample Question 5

Which statement is true about LLDP?

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Free JN0-643 Sample Question 6

Which CoS feature avoids congestion in a device by limiting traffic on ingress interfaces?

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Free JN0-643 Sample Question 7

-- Exhibit

https://www.dumps4download.us/online-quiz/wp-content/uploads/2015/12/12.png

cClick the Exhibit button.
Which statement is true about the IPv6 network shown in the exhibit?

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Free JN0-643 Sample Question 8

-- Exhibit

https://www.dumps4download.us/online-quiz/wp-content/uploads/2015/12/13.png

Click the Exhibit button.
Referring to the exhibit, what is the shortest path from R6 to R5?

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Free JN0-643 Sample Question 9

R1 and R2 are ASBRs in the same area, each with an equal cost external path to the same external network prefix. R1 advertises an external route into OSPF with a Type 1 metric. R2 advertises an external route into OSPF with a Type 2 metric.
Which route would be preferred?

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Free JN0-643 Sample Question 10

-- Exhibit

https://www.dumps4download.us/online-quiz/wp-content/uploads/2015/12/14.png

Click the Exhibit button.
Referring to the exhibit, which LSA type will Router R2 inject into Area 1?

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Free JN0-643 Sample Question 11

-- Exhibit --
[edit protocols ospf]
user@R2# show
area 0.0.0.6 {
nssa {
default-lsa default-metric 10;
area-range 184.23.12.0/24;
}
interface ge-1/1/4;
}
[edit protocols ospf]
user@R2# show ospf database
OSPF database, Area 0.0.0.0
Type ID Adv Rtr Seq Age Opt Cksum Len
Router *192.168.0.2 192.168.0.2 0x80000004 749 0x22 0x87c2 60 Router 192.168.0.3 192.168.0.3 0x80000004 399 0x22 0x94b5 60 Summary *10.0.0.0 192.168.0.2 0x80000003 19 0x22 0xe2e4 28 Summary *192.168.0.1 192.168.0.2 0x80000002 1100 0x22 0xbda7 28
OSPF database, Area 0.0.0.6
Type ID Adv Rtr Seq Age Opt Cksum Len
Router 192.168.0.1 192.168.0.1 0x80000004 404 0x20 0x76db 60 Router *192.168.0.2 192.168.0.2 0x80000003 1802 0x20 0x319b 48 Summary *11.0.0.0 192.168.0.2 0x80000002 2504 0x20 0xf5d3 28 Summary *192.168.0.2 192.168.0.2 0x80000003 2153 0x20 0xc5a0 28 Summary *192.168.0.3 192.168.0.2 0x80000002 398 0x20 0xc79d 28 NSSA *0.0.0.0 192.168.0.2 0x80000001 11 0x20 0xcbf1 36 NSSA 184.23.12.0 192.168.0.1 0x80000002 447 0x28 0xb93f 36 OSPF AS SCOPE link state database Type ID Adv Rtr Seq Age Opt Cksum Len
Extern *184.23.12.0 192.168.0.2 0x80000003 11 0x22 0x28d6 36 -- Exhibit --
Click the Exhibit button.
Referring to the exhibit, which two statements are correct? (Choose two.)

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Free JN0-643 Sample Question 12

-- Exhibit --

https://www.dumps4download.us/online-quiz/wp-content/uploads/2015/12/18-2.png

Referring to the exhibit, which type of LSA will be seen on router A for routes originating in Customer A's network?

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Free JN0-643 Sample Question 13

Which statement is true regarding OSPF multi-area adjacencies?

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Free JN0-643 Sample Question 14

Exhibit

https://www.dumps4download.us/online-quiz/wp-content/uploads/2016/01/20.png

Click the Exhibit button.
Referring to the exhibit, which two statements are correct? (Choose two.)

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Free JN0-643 Sample Question 15

Which statement is true about using an OSPF import policy?

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Free JN0-643 Sample Question 16

Which statement is true regarding the SPF algorithm?

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Free JN0-643 Sample Question 17

You are asked to configure graceful restart in your network.
Which OSPF LSA type would you expect to see in the LSDB?

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Free JN0-643 Sample Question 18

-- Exhibit --

https://dumps4download.us/exam/wp-content/uploads/2016/02/26.png

Referring to the exhibit, which answer is correct?

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Free JN0-643 Sample Question 19

user@router> show ospf database network extensive
OSPF link state database, area 0.0.0.1
Type ID Adv Rtr Seq Age Opt Cksum Len
Network 10.222.1.1 192.168.20.1 0x80000002 813 0x2 0x 32 mask 255.255.255.0
attached router 192.168.20.1
attached router 192.168.40.1
Aging timer 00:46:27
Installed 00:13:32 ago, expires in 00:46:27, sent 1w5d 01:07:09 ago
Click the Exhibit button.
Referring to the exhibit, which statement is true regarding the OSPF network LSA?

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Free jn0-643 Sample Question 20

-- Exhibit --
user@router> show log ospf
Sep 19 00:22:13.420315 OSPF packet ignoreD. MTU mismatch from 11.0.0.2 on intf ge-0/0/2.0 area
0.0.0.0
Sep 19 00:22:14.475671 OSPF periodic xmit from 14.0.0.1 to 224.0.0.5 (IFL 75 area 0.0.0.0) Sep 19
00:22:14.855490 OSPF periodic xmit from 12.0.0.1 to 224.0.0.5 (IFL 84 area 0.0.0.0) Sep 19
00:22:14.857304 OSPF packet ignoreD. no matching interface from 12.0.0.1, IFL 85 Sep 19
00:22:17.386726 OSPF packet ignoreD. MTU mismatch from 11.0.0.2 on intf ge-0/0/2.0 area 0.0.0.0
Sep 19 00:22:20.855690 OSPF packet ignoreD. subnet mismatch from 10.0.0.2 on intf ge-0/0/1.0 area 0.0.0.0 Sep 19 00:22:20.856108 OSPF rcvd Hello 10.0.0.2 -> 224.0.0.5 (ge-0/0/1.0 IFL 75 area 0.0.0.0) Sep 1900:22:20.856177 Version 2, length 44, ID 10.0.0.2, area 0.0.0.0 Sep 19 00:22:20.856229 checksum 0x0,authtype 0 Sep 19 00:22:20.856299 mask 255.255.255.252, hello_ivl 10, opts 0x12, prio 128 Sep 19 00:22:20.856352 dead_ivl 40, DR 0.0.0.0, BDR 0.0.0.0 Sep 19 00:22:21.752438 OSPF packet ignoreD. MTU mismatch from 11.0.0.2 on intf ge-0/0/2.0 area 0.0.0.0 Sep 19 00:22:22.013285 OSPF packet ignoreD. area mismatch (0.0.0.1) from 12.0.0.2 on intf ge- 0/0/4.0 area 0.0.0.0 Sep 19 00:22:22.013749 OSPF rcvd Hello 12.0.0.2 -> 224.0.0.5 (ge-0/0/4.0 IFL 84 area 0.0.0.0) Sep 19 00:22:22.013804 Version 2, length 44, ID 10.0.0.2, area 0.0.0.1 Sep 19 00:22:22.013890 checksum 0xd51e, authtype 0 Sep 19 00:22:22.013944 mask 255.255.255.252, hello_ivl 10, opts 0x12, prio 128 Sep 19 00:22:22.014012dead_ivl 40, DR 12.0.0.2, BDR 0.0.0.0 Sep 19 00:22:22.016909 OSPF packet ignoreD. no matching
interface from 12.0.0.2, IFL 85 Sep 19 00:22:22.434956 OSPF hello from 11.0.0.2 (IFL 83, area 0.0.0.0) absorbed Sep 19 00:22:23.045916 OSPF periodic xmit from 12.0.0.1 to 224.0.0.5 (IFL 84 area 0.0.0.0) Sep 19 00:22:23.047959 OSPF packet ignoreD. no matching interface from 12.0.0.1, IFL 85 Sep 19 00:22:23.309957 OSPF periodic xmit from 11.0.0.1 to 224.0.0.5 (IFL 83 area 0.0.0.0) Sep 19 00:22:23.528614 OSPF periodic xmit from 14.0.0.1 to 224.0.0.5 (IFL 75 area 0.0.0.0) Sep 19 00:22:25.772835 OSPF packet ignoreD. MTU mismatch from 11.0.0.2 on intf ge-0/0/2.0 area 0.0.0.0 Sep 19 00:22:29.950015 OSPF hello from 11.0.0.2 (IFL 83, area 0.0.0.0) absorbed Sep 19 00:22:30.622112 OSPF packet ignoreD. MTU mismatch from 11.0.0.2 on intf ge-0/0/2.0 area 0.0.0.0 Sep 19 00:22:30.713279 OSPF packet ignoreD. subnet mismatch from 10.0.0.2 on intf ge-0/0/1.0 area 0.0.0.0 Sep 19 00:22:30.713432 OSPF rcvd Hello 10.0.0.2 -> 224.0.0.5 (ge-0/0/1.0 IFL 75 area 0.0.0.0) Sep 19 00:22:30.713503 Version 2, length 44, ID 10.0.0.2, area 0.0.0.0 Sep 19 00:22:30.713553 checksum 0x0, authtype 0 Sep 19 00:22:30.713622 mask 255.255.255.252, hello_ivl 10, opts 0x12, prio 128 Sep 19 00:22:30.713677 dead_ivl 40, DR 0.0.0.0, BDR 0.0.0.0 -- Exhibit --
Click the Exhibit button.
Referring to the exhibit, what is preventing the OSPF adjacency on interface ge-0/0/4 from forming?

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Free jn0-643 Sample Question 21

-- Exhibit --
[edit protocols ospf]
user@R2# show
area 0.0.0.3 {
stub default-metric 10 no-summaries;
interface ge-0/1/1.0;
}
-- Exhibit --
Click the Exhibit button.
Referring to the output in the exhibit, which statement is true?

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Free JNO-643 Sample Question 22

-- Exhibit --
user@router> show ospf route
Topology default Route Table:
Prefix Path Route NH Metric NextHop Nexthop
Type Type Type Interface Address/LSP
192.168.1.0/24 Intra Network IP 10 ge-0/0/1.0
-- Exhibit --
Click the Exhibit button.Which two configurations result in the output shown in the exhibit? (Choose two.)

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Free JN0-643 Sample Question 23

https://www.dumps4download.us/exam/wp-content/uploads/2016/05/screenshot-domain-date-time-11.png-- Exhibit --
Click the Exhibit button.
Referring to the exhibit, you are asked to prevent the 184.16.1.0/24 route from entering the backbone. Which configuration statements would accomplish the task?

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