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2016 Jun JN0-343 Study Guide Questions:

Q261. As shown in the exhibit, you recently installed four EX Series switches in your network. These switches are using the default RSTP configuration. Which two statements are correct? (Choose two.) 

A. Switch-4 selects ge-0/0/10.0 as its root port. 

B. Switch-4 selects ge-0/0/9.0 as its root port. 

C. Switch-4's root cost path is 4000. 

D. Switch-4's root cost path is 40000. 

Answer: BD 

Q262. Which statement is true regarding redundant trunk groups (RTGs)? 

A. STP and RTG can be used on the same interface. 

B. An aggregated interface can be a member of an RTG. 

C. Members of an RTG must carry different VLANs. 

D. An RTG can contain up to 16 member links. 

Answer: B 

Q263. Which two statements are true regarding the election process of the DIS in IS-IS? (Choose two.) 

A. In the event of a priority tie, the DIS is the router with the lowest configured IP address. 

B. In the event of a priority tie, the DIS is the router with the highest MAC address. 

C. A user can configure a priority for DIS election from 0 to 255. 

D. The default DIS election priority is 64 for Level 1 and Level 2. 

Answer: BD 

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Q264. The exhibit shows the Ethernet bridge table on an EX Series switch. What does the asterisk (*) in the output indicate? 

A. The asterisk (*) indicates a multicast MAC address. 

B. The asterisk (*) indicates an invalid MAC address. 

C. The asterisk (*) indicates the flood entry for all VLANs. 

D. The asterisk (*) indicates all valid destination MAC addresses. 

Answer: D 

Q265. Which statement about LACP is true? 

A. LACP is enabled by default on aggregated Ethernet interfaces. 

B. LACP is enabled by default on redundant trunk groups. 

C. The default mode of operation of an LACP interface is passive. 

D. At least one side of an LACP session must be configured as passive. 

Answer: C 

Q266. — Exhibit –[edit] 

user@router# show protocols ospf 

traffic-engineering advertise-unnumbered-interfaces; 

area 0.0.0.0 { 

interface all; 

[edit] 

user@router# show interfaces 

ge-0/0/0 { 

unit 0 { 

family inet { 

address 172.16.12.15/24; 

ge-1/0/0 { 

unit 0 { 

family inet { 

address 66.129.12.1/24; 

lo0 { 

unit 0 { 

family inet { 

address 127.0.0.5/32; 

[edit] 

user@router# show routing-options 

route-distinguisher-id 130.0.0.28; 

— Exhibit —

Referring to the exhibit, which address represents the RID? 

A. 66.129.12.1 

B. 172.16.12.15 

C. 127.0.0.5 

D. 130.0.0.28 

Answer: B 

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Q267. Which statement describes an OSPF area for which no-summaries is configured? 

A. The ABR does not generate any Summary (Type 3) LSAs towards the backbone. 

B. The ABR does not generate any Summary (Type 3) LSAs for other OSPF areas. 

C. The area does not summarize external routes generated within its area. 

D. The area does not accept or create summaries of any kind. 

Answer: B 

Q268. Your network consists of three OSPF routers as shown below: 

R1 — R2 — R3 

You run the show ospf neighbor command on R2. The output shows no data in the output for OSPF neighbors. 

Which three actions will troubleshoot the adjacency problem for Router R2? (Choose three.) 

A. Verify the physical and data link layer connectivity on Routers R1, R2, and R3. 

B. Look for incorrect settings for MTU on Routers R1 and R3. 

C. Look for mismatched configurations on Routers R1, R2, and R3 for IP subnet/mask, area number, and area type. 

D. Verify Router R1 and R3 to see if they are stuck in 2-way state. 

E. Look for mismatched configurations on Routers R1, R2, and R3 for authentication, hello/dead interval, and network type. 

Answer: ACE 

Q269. — Exhibit – 

— Exhibit —

You manage the network shown in the exhibit. All four switches have the default RSTP settings. The elected root bridge is switch-1. You must ensure that switch-4 always prefers the connection to switch-3 to reach the root bridge. 

Which two configurations will accomplish this task? (Choose two.) 

{master:0}[edit] 

A. user@switch-4# show protocols 

rstp { 

interface ge-0/0/3.0 { 

priority 64; 

cost 20000; 

{master:0}[edit] 

B. user@switch-4# show protocols 

rstp { 

interface ge-0/0/3.0 { 

priority 128; 

cost 20000; 

{master:0}[edit] 

C. user@switch-3# show protocols 

rstp { 

interface ge-0/0/2.0 { 

priority 240; 

cost 200000; 

{master:0}[edit] 

D. user@switch-3# show protocols 

rstp { 

interface ge-0/0/2.0 { 

priority 128; 

cost 2000; 

Answer: AD 

Q270. Which two statements are true of OSPF stub areas? (Choose two.) 

A. Stub areas might contain ASBRs and can receive external Extern (Type 5) LSAs from other areas. 

B. Stub areas cannot be crossed in the creation of a virtual link. 

C. Stub areas cannot receive any Summary (Type 3) LSAs. 

D. Stub areas cannot contain an ASBR. 

Answer: BD 

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