ccna2v7

1.What is a drawback of the local database method of securing device access that ican be solved by using AAA with centralized servers?. There is no ability to provide accountability. User accounts must be configured locally on each device, which is an unscalable authentication solution. It is very susceptible to brute-force attacks because there is no username. The passwords can only be stored in plain text in the running configuration.

2. What network attack seeks to create a DoS for clients by preventing them from being able to obtain a DHCP lease?. IP address spoofing. DHCP starvation. CAM table attack. DHCP spoofing.

3.Refer to the exhibit. Router R1 has an OSPF neighbor relationship with the ISP router over the 192.168.0.32 network. The 192.168.0.36 network link should serve as a backup when the OSPF link goes down. The floating static route command ip route 0.0.0.0 0.0.0.0 S0/0/1 100 was issued on R1 and now traffic is using the backup link even when the OSPF link is up and functioning. Which change should be made to the static route command so that traffic will only use the OSPF link when it is up?. Change the administrative distance to 120. Add the next hop neighbor address of 192.168.0.36. Change the destination network to 192.168.0.34. Change the administrative distance to 1.

4. How will a router handle static routing differently if Cisco Express Forwarding is disabled?. It will not perform recursive lookups. Ethernet multiaccess interfaces will require fully specified static routes to avoid routing inconsistencies. Static routes that use an exit interface will be unnecessary. Serial point-to-point interfaces will require fully specified static routes to avoid routing inconsistencies.

5. Compared with dynamic routes, what are two advantages of using static routes on a router? (Choose two.). They improve network security. They take less time to converge when the network topology changes. . They improve the efficiency of discovering neighboring networks. They use fewer router resources.

6. On what switch ports should BPDU guard be enabled to enhance STP stability?. • all PortFast-enabled ports. • only ports that are elected as designated ports. • only ports that attach to a neighboring switch. • all trunk ports that are not root ports.

7. What protocol should be disabled to help mitigate VLAN attacks?. CDP. ARP. STP. DTP.

8. Which mitigation technique would prevent rogue servers from providing false IPv6 configuration parameters to clients?. enabling DHCPv6 Guard. enabling RA Guard. implementing port security on edge ports. disabling CDP on edge ports.

9.What protocol or technology allows data to transmit over redundant switch links?. EtherChannel. DTP. STP *. VTP.

What is the effect of entering the switchport port-security configuration command on a switch?. It dynamically learns the L2 address and copies it to the running configuration. It enables port security on an interface. It enables port security globally on the switch. It restricts the number of discovery messages, per second, to be received on the interface.

11.Refer to the exhibit. A network engineer is configuring IPv6 routing on the network. Which command issued on router HQ will configure a default route to the Internet to forward packets to an IPv6 destination network that is not listed in the routing table?. ipv6 route ::/0 serial 0/0/0. ip route 0.0.0.0 0.0.0.0 serial 0/1/1. ipv6 route ::1/0 serial 0/1/1. ipv6 route ::/0 serial 0/1/1.

12. Refer to the exhibit. Currently router R1 uses an EIGRP route learned from Branch2 to reach the 10.10.0.0/16 network. Which floating static route would create a backup route to the 10.10.0.0/16 network in the event that the link between R1 and Branch2 goes down?. • ip route 10.10.0.0 255.255.0.0 Serial 0/0/0 100. • ip route 10.10.0.0 255.255.0.0 209.165.200.226 100. • ip route 10.10.0.0 255.255.0.0 209.165.200.225 100. • ip route 10.10.0.0 255.255.0.0 209.165.200.225 50.

14.Which type of static route is configured with a greater administrative distance to provide a backup route to a route learned from a dynamic routing protocol?. floating static route. default static route. summary static route. standard static route.

14. Which type of static route is configured with a greater administrative distance to provide a backup route to a route learned from a dynamic routing protocol?. floating static route. default static route. summary static route. standard static route.

15. What else is required when configuring an IPv6 static route using a next-hop link-local address?. administrative distance. ip address of the neighbor router. network number and subnet mask on the interface of the neighbor router. interface number and type.

16. What action does a DHCPv4 client take if it receives more than one DHCPOFFER from multiple DHCP servers?. It sends a DHCPREQUEST that identifies which lease offer the client is accepting. It sends a DHCPNAK and begins the DHCP process over again. It discards both offers and sends a new DHCPDISCOVER. It accepts both DHCPOFFER messages and sends a DHCPACK.

17. Refer to the exhibit. A network administrator has added a new subnet to the network and needs hosts on that subnet to receive IPv4 addresses from the DHCPv4 server. What two commands will allow hosts on the new subnet to receive addresses from the DHCP4 server? (Choose two.). R1(config-if)# ip helper-address 10.2.0.250. R1(config)# interface G0/1. R1(config)# interface G0/0. R2(config-if)# ip helper-address 10.2.0.250. R2(config)# interface G0/0. R1(config-if)# ip helper-address 10.1.0.254.

18. Refer to the exhibit. What can be concluded about the configuration shown on R1?. R1 is configured as a DHCPv4 relay agent. R1 is operating as a DHCPv4 server. R1 will broadcast DHCPv4 requests on behalf of local DHCPv4 clients. R1 will send a message to a local DHCPv4 client to contact a DHCPv4 server at 10.10.10.8.

19. A junior technician was adding a route to a LAN router. A traceroute to a device on the new network revealed a wrong path and unreachable status. What should be done or checked?. Create a floating static route to that network. Check the configuration on the floating static route and adjust the AD. Check the configuration of the exit interface on the new static route. Verify that the static route to the server is present in the routing table.

20. Which two VTP modes allow for the creation, modification, and deletion of VLANs on the local switch? (Choose two.). client. master. distribution. slave. server. transparent.

21. Refer to the exhibit. Which three hosts will receive ARP requests from host A, assuming that port Fa0/4 on both switches is configured to carry traffic for multiple VLANs? (Choose three.). host B. host C. host D. host E. host F. host G.

22. Which three pairs of trunking modes will establish a functional trunk link between two Cisco switches? (Choose three.). dynamic auto - dynamic auto. access - trunk. dynamic desirable - trunk. access - dynamic auto. dynamic desirable - dynamic desirable. dynamic desirable - dynamic auto.

23. Refer to the exhibit. How is a frame sent from PCA forwarded to PCC if the MAC address table on switch SW1 is empty?. SW1 forwards the frame directly to SW2. SW2 floods the frame to all ports connected to SW2, excluding the port through which the frame entered the switch. SW1 floods the frame on all ports on the switch, excluding the interconnected port to switch SW2 and the port through which the frame entered the switch. SW1 floods the frame on all ports on SW1, excluding the port through which the frame entered the switch. SW1 drops the frame because it does not know the destination MAC address.

24. After attaching four PCs to the switch ports, configuring the SSID and setting authentication properties for a small office network, a technician successfully tests the connectivity of all PCs that are connected to the switch and WLAN. A firewall is then configured on the device prior to connecting it to the Internet. What type of network device includes all of the described features?. firewall appliance. wireless router. switch. standalone wireless access point.

25. Match the DHCP message types to the order of the DHCPv4 process. (Not all options are used.). step 1. step 2. step 3. step 4.

26. Match the link state to the interface and protocol status. (Not all options are used.). Disabled. Layer 1 problem. Layer 2 problem. Operational.

27.What is a secure configuration option for remote access to a network device?. Configure an ACL and apply it to the VTY lines. Configure 802.1x. Configure SSH. Configure Telnet.

28. Match the description to the correct VLAN type. (Not all options are used.). Default VLAN. Management VLAN. Data VLANs. Native VLAN.

29. Refer to the exhibit. What are the possible port roles for ports A, B, C, and D in this RSTP-enabled network?. alternate, designated, root, root. designated, alternate, root, root. alternate, root, designated, root. designated, root, alternate, root.

30. Refer to the exhibit. Which destination MAC address is used when frames are sent from the workstation to the default gateway?. MAC address of the virtual router. MAC address of the standby router. MAC addresses of both the forwarding and standby routers. MAC address of the forwarding router.

31. What are three techniques for mitigating VLAN attacks? (Choose three.). Use private VLANs. Enable BPDU guard. Enable trunking manually. Enable Source Guard. Disable DTP. Set the native VLAN to an unused VLAN.

32. After a host has generated an IPv6 address by using the DHCPv6 or SLAAC process, how does the host verify that the address is unique and therefore usable?. The host sends an ICMPv6 echo request message to the DHCPv6 or SLAAC-learned address and if no reply is returned, the address is considered unique. The host sends an ICMPv6 neighbor solicitation message to the DHCP or SLAAC-learned address and if no neighbor advertisement is returned, the address is considered unique. The host checks the local neighbor cache for the learned address and if the address is not cached, it it considered unique. The host sends an ARP broadcast to the local link and if no hosts send a reply, the address is considered unique.

33. Refer to the exhibit. Which static route would an IT technician enter to create a backup route to the 172.16.1.0 network that is only used if the primary RIP learned route fails?. ip route 172.16.1.0 255.255.255.0 s0/0/0. ip route 172.16.1.0 255.255.255.0 s0/0/0 121. ip route 172.16.1.0 255.255.255.0 s0/0/0 111. ip route 172.16.1.0 255.255.255.0 s0/0/0 91.

34. Refer to the exhibit. Host A has sent A packet to host B. What will be the source MAC and IP addresses on the packet when it arrives at host B?. Source MAC: 00E0.FE91.7799 Source IP: 10.1.1.10. Source MAC: 00E0.FE10.17A3 Source IP: 10.1.1.10. Source MAC: 00E0.FE10.17A3 Source IP: 192.168.1.1. Source MAC: 00E0.FE91.7799 Source IP: 10.1.1.1. Source MAC: 00E0.FE91.7799 Source IP: 192.168.1.1.

35.Refer to the exhibit. A network administrator has connected two switches together using EtherChannel technology. If STP is running, what will be the end result?. STP will block one of the redundant links. The switches will load balance and utilize both EtherChannels to forward packets. The resulting loop will create a broadcast storm. Both port channels will shutdown.

36. An administrator is trying to remove configurations from a switch. After using the command erase startup-config and reloading the switch, the administrator finds that VLANs 10 and 100 still exist on the switch. Why were these VLANs not removed?. Because these VLANs are stored in a file that is called vlan.dat that is located in flash memory, this file must be manually deleted. These VLANs cannot be deleted unless the switch is in VTP client mode. These VLANs are default VLANs that cannot be removed. These VLANs can only be removed from the switch by using the no vlan 10 and no vlan 100 commands.

37. Refer to the exhibit. In addition to static routes directing traffic to networks 10.10.0.0/16 and 10.20.0.0/16, Router HQ is also configured with the following command: ip route 0.0.0.0 0.0.0.0 serial 0/1/1 What is the purpose of this command?. Packets that are received from the Internet will be forwarded to one of the LANs connected to R1 or R2. Packets with a destination network that is not 10.10.0.0/16 or is not 10.20.0.0/16 or is not a directly connected network will be forwarded to the Internet. Packets from the 10.10.0.0/16 network will be forwarded to network 10.20.0.0/16, and packets from the 10.20.0.0/16 network will be forwarded to network 10.10.0.0/16. Packets that are destined for networks that are not in the routing table of HQ will be dropped.

38.Which wireless encryption method is the most secure?. WPA2 with AES. WPA2 with TKIP. WEP. WPA.

39. Refer to the exhibit. A network administrator is configuring inter-VLAN routing on a network. For now, only one VLAN is being used, but more will be added soon. What is the missing parameter that is shown as the highlighted question mark in the graphic?. It identifies the subinterface. It identifies the VLAN number. It identifies the native VLAN number. It identifies the type of encapsulation that is used. It identifies the number of hosts that are allowed on the interface.

40. Which two statements are characteristics of routed ports on a multilayer switch? (Choose two.). In a switched network, they are mostly configured between switches at the core and distribution layers. The interface vlan command has to be entered to create a VLAN on routed ports. They support subinterfaces, like interfaces on the Cisco IOS routers. They are used for point-to-multipoint links. They are not associated with a particular VLAN.

41.A network administrator is using the router-on-a-stick model to configure a switch and a router for inter-VLAN routing. What configuration should be made on the switch port that connects to the router?. Configure it as a trunk port and allow only untagged traffic. Configure the port as an access port and a member of VLAN1. Configure the port as an 802.1q trunk port. Configure the port as a trunk port and assign it to VLAN1.

42. What action takes place when a frame entering a switch has a unicast destination MAC address appearing in the MAC address table?. The switch updates the refresh timer for the entry. The switch forwards the frame out of the specified port. The switch purges the entire MAC address table. The switch replaces the old entry and uses the more current port.

43. What method of wireless authentication is dependent on a RADIUS authentication server?. WEP. WPA Personal. WPA2 Personal. WPA2 Enterprise.

44. A network engineer is troubleshooting a newly deployed wireless network that is using the latest 802.11 standards. When users access high bandwidth services such as streaming video, the wireless network performance is poor. To improve performance the network engineer decides to configure a 5 Ghz frequency band SSID and train users to use that SSID for streaming media services. Why might this solution improve the wireless network performance for that type of service?. Requiring the users to switch to the 5 GHz band for streaming media is inconvenient and will result in fewer users accessing these services. The 5 GHz band has more channels and is less crowded than the 2.4 GHz band, which makes it more suited to streaming multimedia. The 5 GHz band has a greater range and is therefore likely to be interference-free. The only users that can switch to the 5 GHz band will be those with the latest wireless NICs, which will reduce usage.

45. Refer to the exhibit. All the displayed switches are Cisco 2960 switches with the same default priority and operating at the same bandwidth. Which three ports will be STP designated ports? (Choose three.). fa0/9. fa0/13. fa0/10. fa0/20. fa0/21. fa0/11.

46. Refer to the exhibit. Which trunk link will not forward any traffic after the root bridge election process is complete?. Trunk1. Trunk2. Trunk3. Trunk4.

47. Which two types of spanning tree protocols can cause suboptimal traffic flows because they assume only one spanning-tree instance for the entire bridged network? (Choose two.). MSTP. RSTP. Rapid PVST+. PVST+. STP.

48. Select the three PAgP channel establishment modes. (Choose three.). auto. default. passive. desirable. extended. on.

49. Which command will start the process to bundle two physical interfaces to create an EtherChannel group via LACP?. interface port-channel 2. channel-group 1 mode desirable. interface range GigabitEthernet 0/4 – 5. channel-group 2 mode auto.

50. What two default wireless router settings can affect network security? (Choose two.). The SSID is broadcast. MAC address filtering is enabled. WEP encryption is enabled. The wireless channel is automatically selected. A well-known administrator password is set.

51. On a Cisco 3504 WLC Summary page ( Advanced > Summary ), which tab allows a network administrator to configure a particular WLAN with a WPA2 policy?. WLANs. SECURITY. WIRELESS. MANAGEMENT.

52. A technician is troubleshooting a slow WLAN and decides to use the split-the-traffic approach. Which two parameters would have to be configured to do this? (Choose two.). Configure the 5 GHz band for streaming multimedia and time sensitive traffic. Configure the security mode to WPA Personal TKIP/AES for one network and WPA2 Personal AES for the other network. Configure the 2.4 GHz band for basic internet traffic that is not time sensitive. Configure the security mode to WPA Personal TKIP/AES for both networks. Configure a common SSID for both split networks.

53. A technician is configuring a wireless network for a small business using a SOHO wireless router. Which two authentication methods are used, if the router is configured with WPA2? (Choose two.). • personal. • AES. • TKIP. • WEP. • enterprise.

54. Refer to the exhibit. An administrator is attempting to install an IPv6 static route on router R1 to reach the network attached to router R2. After the static route command is entered, connectivity to the network is still failing. What error has been made in the static route configuration?. The next hop address is incorrect. The interface is incorrect. The destination network is incorrect. The network prefix is incorrect.

55. Refer to the exhibit. Consider that the main power has just been restored. PC3 issues a broadcast IPv4 DHCP request. To which port will SW1 forward this request?. to Fa0/1, Fa0/2, and Fa0/3 only. to Fa0/1, Fa0/2, Fa0/3, and Fa0/4. to Fa0/1 only. to Fa0/1, Fa0/2, and Fa0/4 only. to Fa0/1 and Fa0/2 only.

56. Which statement describes a result after multiple Cisco LAN switches are interconnected?. The broadcast domain expands to all switches. MAC address. One collision domain exists per switch. There is one broadcast domain and one collision domain per switch. Frame collisions increase on the segments connecting the switches. Unicast frames are always forwarded regardless of the destination.

57. Which information does a switch use to populate the MAC address table?. the destination MAC address and the incoming port. the destination MAC address and the outgoing port. the source and destination MAC addresses and the incoming port. the source and destination MAC addresses and the outgoing port. the source MAC address and the incoming port. the source MAC address and the outgoing port.

58. A PC has sent an RS message to an IPv6 router attached to the same network. Which two pieces of information will the router send to the client? (Choose two.). prefix length. subnet mask in dotted decimal notation. domain name. administrative distance. prefix. DNS server IP address.

59. Refer to the exhibit. What will router R1 do with a packet that has a destination IPv6 address of 2001:db8:cafe:5::1?. forward the packet out GigabitEthernet0/0. drop the packet. forward the packet out GigabitEthernet0/1. forward the packet out Serial0/0/0.

60. Refer to the exhibit. A network administrator configured routers R1 and R2 as part of HSRP group 1. After the routers have been reloaded, a user on Host1 complained of lack of connectivity to the Internet The network administrator issued the show standby brief command on both routers to verify the HSRP operations. In addition, the administrator observed the ARP table on Host1. Which entry should be seen in the ARP table on Host1 in order to gain connectivity to the Internet?. the virtual IP address and the virtual MAC address for the HSRP group 1. the virtual IP address of the HSRP group 1 and the MAC address of R1. the virtual IP address of the HSRP group 1 and the MAC address of R2. the IP address and the MAC address of R1.

61. A new Layer 3 switch is connected to a router and is being configured for interVLAN routing. What are three of the five steps required for the configuration? (Choose three.) Case 7 (NEW): • creating SVI interfaces. • adjusting the route metric. • enabling IP routing. • assigning ports to VLANs. • deleting the default VLAN. • assigning the ports to the native VLAN. • modifying the default VLAN.