CCNA 3 Practice Final 2017 Exam Answers 100%

CCNA 3 Practice Final Exam Answers Full

  1. Which command will allow you to see the networks the current router is advertising for OSPF?
    A. Router#show ip protocols
    B. Router#show ip ospf
    C. Router#show ip ospf database
    D. Router#show ip ospf neighbors
  2. Which statement is true of routers in the same area?
    A. All routers in the same area have the same neighbor table.
    B. All routers in the same area have the same hello/dead timers.
    C. All routers in the same area have the same topology table.
    D. All routers in the same area have the same process IDs.
  3. Which command would you use to make sure Router A never becomes a designated router?
    A. Router(config)#no ospf designated
    B. Router(config-router)#no ospf designated
    C. Router(config-router)#passive interface gi 0/0
    D. Router(config-if)#ip ospf priority 0
  4. You enter a show ip route command and see the following line. What does the [110/1] identify? O [110/1] via, 00:58:55, Serial0/3/1

    A. Administrative distance of 110 and a 100 Mb/s link
    B. Administrative distance of 110 and a 10 Mb/s link
    C. Administrative distance of 1 and a 110 Mb/s link
    D. Administrative distance of 110 and a 1 Gb/s link

  5. Which command will start an OSPFv3 process with an ID of 4?
    A. Router(config)#router ospfv3 4
    B. Router(config)#ip router ospfv3 4
    C. Router(config)#ipv6 router ospf 4
    D. Router(config)#router ospf3 4
  6. Which IPv6 address does OSPFv3 use to communicate with designated routers?
    A. ff02::6
    B. ff02::5
    C. fe02::5
    D. fe02::6
  7. When configuring OSPFv3, how do you configure the router ID?
    A. The router ID is configured as a 128-bit IPv6 address.
    B. The router ID is configured as the 64-bit host section of an IPv6 address.
    C. The router ID is configured as a 32-bit IPv4 address.
    D. The router ID is configured as a 48-bit MAC address.
  8. You are configuring an OSPFv3 process of 4 for an interface of Serial 0/0 with an
    IPv6 address of 2001:db8:1:2::1/64 in area 0. Which command will you use?

    A. Router(config-router)#network 2001:db8:1:2/64 area 0
    B. Router(config-if)#ipv6 ospf 4 area 0
    C. Router(config-rtr)#network 2001:db8:1:2/64 area 0
    D. Router(config-if)#ipv6 ospf area 0
  9. You have an interface of Serial 0/0, which is connected to your ISP. You want to suppress OSPFv3 LSAs on the IPv6 link to the ISP. Which command will you use?
    A. Router(config-rtr)#passive-interface serial 0/0
    B. Router(config-router)#passive-interface serial 0/0
    C. Router(config-if)#passive-interface
    D. Router(config-if)#ipv6 passive-interface
  10. You have a number of routers with 10 Gb/s and 1 Gb/s links running OSPFv3. You need to adjust the cost for all links on the router. Which command will allow you to achieve this with the fewest commands?
    A. Router(config-rtr)#auto-cost 10000
    B. Router(config-rtr)#auto-cost reference-bandwidth 10000
    C. Router(config)#auto-cost reference-bandwidth 10000
    D. Router(config-rtr)#auto-cost reference-bandwidth 10000000
  11. Which IPv6 address does OSPFv3 use to send LSA hello packets?
    A. ff02::6
    B. ff02::5
    C. fe02::5
    D. fe02::6
  12. Which command will allow you to verify only OSPFv3 routes?
    A. Router#show ip route opsf3
    B. Router#show ip route opsfv3
    C. Router#show ipv6 route opsf3
    D. Router#show ipv6 route ospf
  13. Which command would you use to verify that the hello/dead timers match for OSPFv3?
    A. Router#show ip ospf interface
    B. Router#show ipv6 ospf interface
    C. Router#show ipv6 ospfv3 interface
    D. Router#show ipv6 database
  14. A common problem with IPv6 and OSPFv3 is MTU. Why is it a common problem with IPv6 and not IPv4?
    A. OSPFv3 ignores MTU settings.
    B. IPv4 fragments packets.
    C. IPv6 addresses are large and require jumbo frames.
    D. IPv4 uses TCP to transmit OSPF packets.
  15. You need to configure OSPFv3 for the network 2001:db8:2:3/64 with an area of 0. Which configuration would you use?
    A. Router(config-rtr)#network 2001:db8:2:3/64 area 0
    B. Router(config-router)#network 2001:db8:2:3/64 area 0
    C. Router(config-if)#ip ospf 2 area 0
    D. Router(config-if)#ipv6 ospf 2 area
  16. You begin to configure OSPFv3 but get the error % IPv6 routing not enabled. Which command needs to be entered?
    A. Router(config)#enable ipv6
    B. Router(config)#enable ipv6 routing
    C. Router(config)#ipv6 unicast-routing
    D. Router(config)#enable ipv6 unicast-routing
  17. You have configured OSPFv3 with a process ID of 5. You want to view only the OSPFv3 process ID of 5. Which command will achieve this?
    A. Router#show ip ospf 5
    B. Router#show ipv6 ospf 5
    C. Router#show ospfv3 5
    D. Router#show ipv6 ospfv3 5
  18. You have two routers that will not form an OPSFv3 adjacency. You’ve identified that the hello timer on Router B has been changed. Which command will rectify the problem?
    A. RouterB(config-if)#no ipv6 ospf hello-interval
    B. RouterB(config-if)#no ipv6 ospf hello timer
    C. RouterB(config-rtr)#no ipv6 ospf hello-interval
    D. RouterB(config-rtr)#no ipv6 ospf hello timer
  19. After you configure a new router ID for an OSPFv3 process, which command must be entered for the change to take effect?
    A. Router#clear ipv6 ospf process
    B. Router(config)#restart ipv6 ospf process
    C. Router(config-if)#restart ipv6 ospf process
    D. Router(config-rtr)#clear ipv6 ospf
  20. Which dynamic routing protocol is a Cisco proprietary routing protocol?
    A. RIPv2
    B. BGP
    C. OSPFv3
    D. EIGRP
  21. By default, which metrics are used by EIGRP to calculate path cost?
    A. Bandwidth and delay
    B. Bandwidth and MTU
    C. Bandwidth and reliability
    D. Bandwidth and hop count
  22. Which is a requirement for EIGRP routers to create a neighborship?
    A. Matching bandwidth metrics
    B. Matching delay metrics
    C. Matching K metrics
    D. Matching areas
  23. Which IPv4 multicast address is used by EIGRP?
  24. What is the default formula for metric calculation for EIGRP?
    A. metric = ((107 / least-bandwidth) + cumulative-delay) * 256
    B. metric = ([K1 * bandwidth + (K2 * bandwidth) / (256 – load) + K3 * delay] * [K5
    / (reliability + K4)]) * 256
    C. metric = least-bandwidth + cumulative-delay
    D. metric = least-bandwidth + cumulative-delay / 256
  25. Which condition must be met for two routers participating in EIGRP to become neighbors?
    A. Matching area numbers
    B. Matching autonomous system numbers
    C. Matching hello/dead timers
    D. Matching MTUs
  26. What is the default hop count of EIGRP?
    A. 15
    B. 100
    C. 255
    D. Infinite
  27. What mechanism does EIGRP have for scalability?
    A. Reliable Transport Protocol
    B. Diffusing Update Algorithm
    C. Holddown timers
    D. Autonomous system numbers
  28. How often are hello messages sent between EIGRP participating routers by default?
    A. Every 5 seconds
    B. Every 15 seconds
    C. Every 30 seconds
    D. Every 40 seconds
  29. When does the EIGRP protocol advertise the entire database?
    A. When a route update is sent
    B. Every 30 seconds
    C. Upon forming an adjacency
    D. Every 5 seconds
  30. What is the maximum stable hop count for EIGRP?
    A. 15
    B. 100
    C. 255
    D. Infinite
  31. Which table is used to feed information to the topology table with EIGRP?
    A. Neighbor table
    B. Routing table
    C. RTP table
    D. Feasibility table
  32. Which mechanism does RTP use if an established neighbor does not respond to a multicast hello packet for EIGRP?
    A. Holddown timers
    B. Unicast packets
    C. Hello packet proxy
    D. Broadcasts
  33. What happens when a hold interval for EIGRP has expired?
    A. The hello message is retransmitted via unicast packets.
    B. The hello message is retransmitted via broadcast packets.
    C. The neighbor is considered down.
    D. The link is considered down.
  34. How many equal-cost links can EIGRP load-balance?
    A. 4 links
    B. 8 links
    C. 16 links
    D. 32 links
  35. Which routing algorithm does EIGRP use?
    A. Shortest Path First
    B. Dijkstra
    C. Bellman-Ford
    D. DUAL

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