JN0-351 practice questions 21–30

1. Question 21 · 105 in bank

   Select 2

   You need to configure a LAG between your switches. In this scenario, which two statements are correct? (Choose two.)

   • ADuplex and speed settings are not required to match on both participating devices.
   • BDuplex and speed settings are required to match on both participating devices.
   • CMember links are not required to be contiguous ports.
   • DMember links are required to be contiguous ports.

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   Answer: BC

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2. Question 22 · 105 in bank

   

   What does the * indicate in the output shown in the exhibit?

   • AThe switch ports have a router attached.
   • BThe interface is down.
   • CThe interface is active.
   • DAll interfaces have elected a root bridge.

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   Answer: C

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3. Question 23 · 105 in bank

   You have two OSPF routers forming an adjacency. R1 has a priority of 32 and a router ID of 192.168.1.2. R2 has a priority of 64 and a router ID of 192.168.1.1. The routers were started at the same time and all other OSPF settings are the default settings. Which statement is correct in this scenario?

   • AAt least three routers are required for a DR/BDR election.
   • BRouter IDs must match for an adjacency to form.
   • CR2 will be the BDR.
   • DR1 will be the BDR.

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   Answer: D

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4. Question 24 · 105 in bank

   

   You have configured the four EX Series switches with RSTP, as shown in the exhibit. You discover that whenever a link between switches goes up or down, the switches take longer than expected for RSTP to converge, using the default settings. In this scenario, which action would solve the delay in RSTP convergence?

   • AThe hello-time must be increased.
   • BThe force-version must be removed.
   • CThe bridge priority for EX-4 must be set at 4000.
   • DThe max-age must be increased to 20.

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   Answer: B

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5. Question 25 · 105 in bank

   Select 2

   Which two statements correctly describe RSTP port roles? (Choose two.)

   • AThe designated port forwards data to the downstream network segment or device.
   • BThe backup port is used as a backup for the root port.
   • CThe alternate port is a standby port for an edge port.
   • DThe root port is responsible for forwarding data to the root bridge.

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   Answer: AD

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6. Question 26 · 105 in bank

   

   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?

   • AISP 1
   • BISP 3
   • CISP 4
   • DISP 2

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   Answer: C

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7. Question 27 · 105 in bank

   

   Referring to the exhibit, why is this OSPF adjacency remaining in this state?

   • AA subnet mask mismatch exists between the OSPF neighbors.
   • BAn MTU mismatch exists between the OSPF neighbors.
   • CA hello interval mismatch exists between the OSPF neighbors
   • DAn area ID mismatch exists between the OSPF neighbors.

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   Answer: B

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8. Question 28 · 105 in bank

   Select 2

   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.)

   • AIPsec
   • Banycast
   • CIPv6
   • Dmulticast
   • EIPv4

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   Answer: CE

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9. Question 29 · 105 in bank

   

   Referring to the output shown in the exhibit, which statement is correct?

   • AThe state is normal for a DR neighbor.
   • BThe state is normal for a DRother neighbor.
   • CAn MTU mismatch exists between the OSPF neighbors.
   • DAn area ID mismatch exists between the OSPF neighbors.

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   Answer: B

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10. Question 30 · 105 in bank

    Select 2

    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.)

    • Adynamic ARP inspection
    • BIP source guard
    • CDHCP snooping
    • Dstatic ARP

    Show answer

    Answer: AC

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JN0-351 practice, question 21. 105 questions available.