Bonus CCNA Exam Back to main page 1. You see the below messages in the logs. What is the reason for these messages, and what is the consequence? %SPANTREE-2-BLOCK_BPDUGUARD: Received BPDU on port GigabitEthernet0/1 with BPDU Guard enabled. Disabling port.%PM-4-ERR_DISABLE: bpduguard error detected on 0/1, putting 0/1 in err-disable stateThe interface will be placed in err-disabled stateA BPDU was received on the portThe interface will flap but eventually will come back upBPDU Guard was enabled on the portQuestion 1 of 46 2. To what RSTP port state has the STP Listening port state been converted to?BlockingListeningLearningDiscardingQuestion 2 of 46 3. What type of NAT maps a private to a public address on a one-to-one basis?Dynamic NATStatic NATPort NATNAT OverloadQuestion 3 of 46 4. What is the correct order of the state through which two routers has to go before an adjacency is established?Down, Attempt, Init, Exstart, Exchange, 2-Way, Loading, FullDown, Attempt, Init, Exchange, Exstart, 2-Way, Loading, FullDown, Attempt, Init, 2-Way, Exchange, Exstart, Loading, FullDown, Attempt, Init, 2-Way, Exstart, Exchange, Loading, FullQuestion 4 of 46 5. Which of the following is not a PAgP mode?ActiveAutoOnDesirableQuestion 5 of 46 6. The following definition belongs to which RSTP port role: 'Alternative path to the root bridge but different from the root port path'?Backup PortRoot PortDesignated PortAlternate PortQuestion 6 of 46 7. What are the benefits of using VTP pruning?Contains the VLAN configuration on switches configured as a VTP serverPrevents VLAN information, broadcasts, multicasts, and unicasts from flooding other trunk ports whenthere is no needPropagates the VLAN configuration on all network switches Reduces unnecessary broadcast, multicast, and flooded unicast traffic, which in turn increasesavailable bandwidthQuestion 7 of 46 8. An operator decides to apply the below configuration. What are consequences of this action? If GigabitEthernet5/1 goes down, the HSRP priority of the local router will be increased by 30.If GigabitEthernet5/1 goes up, the HSRP priority of the local router will be increased by 30.If GigabitEthernet5/1 goes down, the HSRP priority of the local router will be decreased by 30.If GigabitEthernet5/1 goes up, the HSRP priority of the local router will be decreased by 30.Question 8 of 46 9. You want to apply ACL 1 on the Telnet lines. What is the correct command to achieve this? CADBQuestion 9 of 46 10. Considering the below diagram and output, what is the command to add a static route on R1 toward the route 2001:1:2:3::/64? ipv6 route 2001:1:2:3::/64 f0/0 FE80::C802:60FF:FE8A:0ip route 2001:1:2:3::/64 f0/0 FE80::C802:60FF:FE8A:0ipv6 route 2001:1:2:3::/64 f0/0ipv6 route 2001:1:2:3::/64 FE80::C802:60FF:FE8A:0Question 10 of 46 11. What are the messages exchanged in a CHAP authentication?RejectAcceptChallengeResponseQuestion 11 of 46 12. Considering that the router needs to be configured for NAT, what command needs to be applied on the Serial interface? ip nat inside translateip nat outside translateip nat outsideip nat insideQuestion 12 of 46 13. What are the purposes of using DR and BDR routers?To advertise only the Network LSAsTo advertise the routers on the multi-access segmentTo reduce the number of adjacencies required on the segmentTo ensure that updates are sent to all routers on the segmentQuestion 13 of 46 14. Considering that LACP is used to configure a Port-Channel interface, when will the EtherChannel not come up?When both sides are configured as ActiveWhen one side is configured as Active and the other as PassiveWhen both sides are configured as PassiveThe Etherchannel using LACP will always come up regardless of how the switches are configuredQuestion 14 of 46 15. What needs to be configured on R1 to have this output? ip 2.2.2.2 R3ip host R3 2.2.2.2ip R3 2.2.2.2ip host 2.2.2.2 R3Question 15 of 46 16. What are the main functions that a switch performs?Learning MAC addressesPreventing loops in the networkFiltering and forwarding framesDiscovering network devicesQuestion 16 of 46 17. What are the protocols through which external authentication is possible?TACACS+RADIUSSSHTELNETQuestion 17 of 46 18. You connect to a router using the console port and see this: 'R2# '. What is this mode called?User modeEnable modePrivileged modeSuper-user modeQuestion 18 of 46 19. You have telnetted to a router and started a few debug commands. However, there is nothing shown on the screen. What do you need to do to see the debugging messages on the screen?Add debug monitor" command"Add debug enable" command"Add terminal monitor" command"Add monitor debug" command"Question 19 of 46 20. Which statements are true based on the output shown below? R1 is using F0/0 to connect to R2R2 is using F0/0 to connect to R3R3 is a routerR2 has two CDP neighborsQuestion 20 of 46 21. Other than assigning an IP address, what are the two mandatory parameters that need to be assigned through DHCP?DNSLease timeSubnet maskDefault routerQuestion 21 of 46 22. Considering the below output, what is the correct configuration of gi1/0/2? CBDAQuestion 22 of 46 23. What results from each VLAN having its own subnet address?Communication is not segmented between hosts in one VLAN and another VLANCommunication is segmented between hosts in one VLAN and another VLANCommunication between two VLANs requires a layer 3 deviceCommunication between two VLANs does not require a layer 3 deviceQuestion 23 of 46 24. What is the command that produces this output? show ipv6 neighborsshow ipv6 interfacesshow ipv6 addressshow ipv6 cefQuestion 24 of 46 25. What are some reasons that RSTP improves STP convergence?Runs only on the newer platforms with faster CPUs, thus there is faster recomputation in case of network changesWaits for three missed Hellos on a root port instead of tenTransitions from the discarding (rather than blocking) state to the learning state, thus bypassing the listening stateIntegration and standardization of Cisco’s PortFast, UplinkFast, and BackboneFastQuestion 25 of 46 26. What is the command to allow OSPF traffic in an ACL?access-list 101 permit ip 89 anyaccess-list 101 permit ospf any anyaccess-list 101 permit ospf anyaccess-list 101 permit ip 89 any anyQuestion 26 of 46 27. What is the process through which a new header is added to the data as it passes down each OSI layer called?SegmentationTaggingEncapsulationProcessingQuestion 27 of 46 28. Which of the following is not an EIGRP packet type?UpdateReplyKeepaliveQueryQuestion 28 of 46 29. Which of the following is not an OSPF area type?Backbone areaCore areaNot-so-stubby areaStub areaQuestion 29 of 46 30. Which OSPF timer needs to be the same for the OSPF adjacency to come up?Dead intervalLSA refresh intervalUpdate intervalHello intervalQuestion 30 of 46 31. Which debug command returns this output? debug arp resolutiondebug ip arpdebug arpdebug arp packetQuestion 31 of 46 32. What is the mechanism through which the data is reliably transferred using TCP?SynchronizationAcknowledgementsFlow ControlWindowingQuestion 32 of 46 33. You have configured the router using this configuration-register value. What will happen after a reboot of the router? The router will boot up in rommon modeThe router will ignore the contents of Non-Volatile RAM (NVRAM) (will ignore configuration)The router will ignore the configuration sections where passwords are referencedThe router will boot in boot modeQuestion 33 of 46 34. What are the RSTP link types?HostPoint-to-pointSharedEdgeQuestion 34 of 46 35. In OSPF, the size of router-id is 32 bit. What is the size of the router-id field in OSPFv3?32 bits64 bits16 bits128 bitsQuestion 35 of 46 36. What are some of the techniques that allow migration from IPv4 to IPv6?ISATAPAutomatic 6to4NAT-PTIPSecQuestion 36 of 46 37. Which of the following is not a step in the router boot-up sequence?The IOS looks for a valid configuration file in NVRAM (the startup configuration) if the configuration register isset to 0x2102The bootstrap loads the Cisco IOS softwareThe IOS looks for a valid configuration file in NVRAM (the startup configuration) if the configuration register isset to 0x2142On power on, the router first performs the POSTQuestion 37 of 46 38. A router has to send a packet to 172.16.27.38, and it has in its routing table the following routes: 172.16.24.0/22, 172.16.27.0/25, 172.16.27.0/24, and 172.16.0.0/19. What route will be used to forward the packet?172.16.0.0/19172.16.27.0/25172.16.27.0/24172.16.24.0/22Question 38 of 46 39. Which of the following criteria is not part of the STP election algorithm?Lowest root bridge IDLowest sender bridge IDLowest hello timerLowest root port IDQuestion 39 of 46 40. What is the best summary route for these routes: 172.16.10.0/23, 172.16.12.128/25, and 172.16.9.0/25?172.16.8.0/20172.16.8.0/22172.16.0.0/16172.16.8.0/21Question 40 of 46 41. Which of the below versions of the IPv6 address 2001:0000:0000:12A0:0000:5678:af23:bcdd is not correct?2001::12A0::5678:af23:bcdd2001:0:0:12A0::5678:af23:bcdd2001:0000:0:12A0::5678:af23:bcdd2001::12A0:0000:5678:af23:bcddQuestion 41 of 46 42. What command is needed to disaply the EIGRP neighbors?show ip eigrp table neighborsshow ip eigrp neighbors tableshow ip eigrp topology neighborsshow ip eigrp neighborsQuestion 42 of 46 43. What are the benefits of using VTP?Ease of adding and removing VLANsVLAN consistency across the networkAccurate monitoring and reporting of VLANsPush VLAN configuration from a central SNMP hostQuestion 43 of 46 44. What are some of the reasons for which SNMP is used?Traffic pattern analysisRemote network configurationNetwork monitoring performanceTroubleshootingQuestion 44 of 46 45. Which of the following are typical ICMPv6 messages?Router SolicitationsNeighbor SolicitationsPrefix DiscoveryRedirectsQuestion 45 of 46 46. What are the advantages of using the switch port’s port security feature?Identifies who can connect to the switch portIdentifies whether a router or a switch was connectedIdentifies a violation actionIdentifies how many devices can connect to the switch portQuestion 46 of 46 Loading...
