CCNA Final Set 2, CCNA 2 Final set 1
Delete the startup configuration and the vlan.dat file in the flash memory of the switch and reboot the switch
A Cisco Catalyst switch has been added to support the use of multiple VLANs as part of an enterprise network. The network technician finds it necessary to clear all VLAN information from the switch in order to incorporate a new network design. What should the technician do to accomplish this task? -Erase the startup configuration and reboot the switch -Erase the running configuration and reboot the switch -Delete the startup configuration and the vlan.dat file in the flash memory of the switch and reboot the switch -Delete the IP address that is assigned to the management VLAN and reboot the switch.
ip nat inside source static tcp 10.18.7.5 443 209.165.200.225 443 ip nat inside source static udp 10.18.7.5 4365 209.165.200.225 4365
A college marketing department has a networked storage device that uses the IP address 10.18.7.5, TCP port 443 for encryption, and UDP port 4365 for video streaming. The college already uses PAT on the router that connects to the Internet. The router interface has the public IP address of 209.165.200.225/30. The IP NAT pool currently uses the IP addresses ranging from 209.165.200.228.236. Which configuration would the network administrator add to allow this device to be accessed by the marketing personnel from home? ip nat inside source static tcp 209.165.200.225 443 10.18.7.5 443 ip nat inside source static udp 209.165.200.225 4365 10.18.7.5 4365 No additional configuration is necessary ip nat pool mktv 10.18.7.5 10.18.7.5 ip nat inside source static tcp 10.18.7.5 443 209.165.200.225 443 ip nat inside source static udp 10.18.7.5 4365 209.165.200.225 4365 ip nat outside source static 10.18.7.5 209.165.200.225
Issue the command ip helper-address 10.10.200.10 on the router interface that is the 10.10.100.0/24 gateway
A host on the 10.10.100.0/24 LAN is not being assigned an IPv4 address by an enterprise DHCP server with the address 10.10.200.10/24. What is the best way for the network engineer to resolve this problem? -Issue the command ip helper-address 10.10.200.10 on the router interface that is the 10.10.100.0/24 gateway. -Issue the command default-router 10.10.200.10 at the DHCP configuration prompt on the 10.10.100.0/24 LAN gateway router. -Issue the command ip helper-address 10.10.100.0 on the router interface that is the 10.10.200.0/24 gateway. -Issue the command network 10.10.200.0 255.255.255.0 at the DHCP configuration prompt on the 10.10.100.0/24 LAN gateway router.
The router will propagate a static default route in its RIP updates, if one is present
A network administrator adds the default-information originate command to the configuration of a router that uses RIP as the routing protocol. What will result from adding this command? -The router will only forward packets that originate on directly connected networks. -The router will propagate a static default route in its RIP updates, if one is present -The router will be reset to the default factory information -The router will not forward routing information that is learned from other routers
loopback address default VLAN IP address
A network administrator is configuring a new Cisco switch for remote management access. Which three items must be configured on the switch for the task? (Choose three.) vty lines VTP domain loopback address default gateway default VLAN IP address
172.16.47.254
A network administrator is configuring an ACL with the command access-list 10 permit 172.16.32.0 0.0.15.255. Which IPv4 address matches the ACE? 172.16.20.2 172.16.26.254 172.16.47.254 172.16.48.5
protect
A network administrator is configuring port security on a Cisco switch. When a violation occurs, which violation mode that is configured on an interface will cause packets with an unknown source address to be dropped with no notification sent? off restrict protect shutdown
0.0.1.255
A network administrator is designing an ACL. The networks 192.168.1.0/25, 192.168.0.0/25, 192.168.0.128/25, 192.168.1.128/26, and 192.168.1.192/26 are affected by the ACL. Which wildcard mask, if any, is the most efficient to use when specifying all of these networks in a single ACL permit entry? 0.0.0.127 0.0.0.255 0.0.1.255 0.0.255.255 A single ACL command and wildcard mask should not be used to specify these particular networks or other traffic will be permitted or denied and present a security risk.
access
Employees of a company connect their wireless laptop computers to the enterprise LAN via wireless access points that are cabled to the Ethernet ports of switches. At which layer of the three-layer hierarchical network design model do these switches operate? physical access core data link distribution
Switch(config)# interface gigabitethernet 1/1 Switch(config-if)# switchport mode trunk
A network administrator is using the router-on-a-stick method to configure inter-VLAN routing. Switch port G01/1 is used to connect to the router. Which command should be entered to prepare this port for the task? Switch(config)# interface gigabitethernet 1/1 Switch(config-if)# spanning-tree vlan 1 Switch(config)# interface gigabitethernet 1/1 Switch(config-if)# spanning-tree portfast Switch(config)# interface gigabitethernet 1/1 Switch(config-if)# switchport mode trunk Switch(config)# interface gigabitethernet 1/1 Switch(config-if)# switchport access vlan 1
System messages that match logging levels 0-4 will be forwarded to a specified logging device.
A network administrator is verifying a configuration that involves network monitoring. What is the purpose of the global configuration command logging trap 4? -System messages will be forwarded to the number following the logging trap argument. -System messages that exist in levels 4-7 must be forwarded to a specific logging server. -System messages that match logging levels 0-4 will be forwarded to a specified logging device. -System messages will be forwarded using a SNMP version that matches the argument that follows the logging trap command.
level 2 child route ultimate route
A network administrator reviews the routing table on the router and sees a route to the destination network 172.16.64.0/18 with a next-hop IP address of 192.168.1.1. What are two descriptions of this route? (Choose two.) parent route default route level 2 child route ultimate route supernet route
access-class 11 in
A network engineer has created a standard ACL to control SSH access to a router. Which command will apply the ACL to the VTY lines? access-group 11 in access-class 11 in access-list 11 in access-list 110 in
show cdp neighbors
A network engineer is interested in obtaining specific information relevant to the operation of both distribution and access layer Cisco devices. Which command provides common information relevant to both types of devices? show port-security show ip interface show ip protocols show mac-address-table show cdp neighbors
sticky secure MAC addresses
A network technician has been asked to secure all switches in the campus network. The security requirements are for each switch to automatically learn and add MAC addresses to both the address table and the running configuration. Which port security configuration will meet these requirements? auto secure MAC addresses dynamic secure MAC addresses static secure MAC addresses sticky secure MAC addresses
sticky secure MAC addresses
A part of the new security policy, all switches on the network are configured to automatically learn MAC addresses for each port. All running configurations are saved at the start and close of every business day. A severe thunderstorm causes an extended power outage several hours after the close of business. When the switches are brought back online, the dynamically learned MAC addresses are retained. Which port security configuration enabled this? auto secure MAC addresses dynamic secure MAC addresses static secure MAC addresses sticky secure MAC addresses
ip route 172.16.32.0 255.255.224.0 S0/0/0 200
A router has used the OSPF protocol to learn a route to the 172.16.32.0/19 network. Which command will implement a backup floating static route to this network? ip route 172.16.0.0 255.255.240.0 S0/0/0 200 ip route 172.16.32.0 255.255.224.0 S0/0/0 200 ip route 172.16.0.0 255.255.224.0 S0/0/0 100 ip route 172.16.32.0 255.255.0.0 S0/0/0 100
the ip nat inside source command to link the inside local and inside global addresses
A small company has a web server in the office that is accessible from the Internet. The IP address 192.168.10.15 is assigned to the web server. The network administrator is configuring the router so that external clients can access the web server over the Internet. Which item is required in the NAT configuration? -an IPv4 address pool -an ACL to identify the local IPv4 address of the web server -the keyword overload for the ip nat inside source command -the ip nat inside source command to link the inside local and inside global addresses
::/0
What network prefix and prefix-length combination is used to create a default static route that will match any IPv6 destination? :/128 FFFF:/128 ::1/64 ::/0
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.
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? -These VLANs are default VLANs that cannot be removed. -These VLANs cannot be deleted unless the switch is in VTP client mode. -These VLANs can only be removed from the switch by using the no vlan 10 and no vlan 100 commands. -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.
They Improve network security They use fewer router resources
Compared with dynamic routes, what are two advantages of using static routes on a router? (Choose two.) -They automatically switch the path to the destination network when the topology changes -They improve network security -They take less time to converge when the network topology changes -They use fewer router resources -They improve the efficiency of discovering neighboring networks.
when the Layer 2 switch needs to be remotely managed
In what situation would a Layer 2 switch have an IP address configured ? -when the Layer 2 switch is using a routed port -when the Layer 2 switch needs to be remotely managed -when the Layer 2 switch is the default gateway of user traffic -when the Layer 2 switch needs to forward user traffic to another device
stub router connection to the rest of the corporate or campus network edge router connection to the ISP
On which two routers would a default static route be configured? (Choose two.) -stub router connection to the rest of the corporate or campus network -any router where a backup route to dynamic routing is needed for reliability -edge router connection to the ISP -any router running an IOS prior to 12.0 -the router that serves as the gateway of last resort
access-class 5 in access-list 5 permit 10.7.0.0 0.0.0.31
The computers used by the network administrators for a school are on the 10.7.0.0/27 network. Which two commands are needed at a minimum to apply an ACL that will ensure that only devices that are used by the network administrators will be allowed Telnet access to the routers? (Choose two.) access-class 5 in access-list 5 deny any access-list standard VTY permit 10.7.0.0 0.0.0.127 access-list 5 permit 10.7.0.0 0.0.0.31 ip access-group 5 out ip access-group 5 in
172.16.0.0
To enable RIP routing for a specific subnet, the configuration command network 172.16.64.32 was entered by the network administrator. What address, if any, appears in the running configuration file to identify this network? 172.16.64.32 172.16.64.0 172.16.0.0 No address is displayed.
switchport mode access switchport port-security switchport port-security maximum 2 switchport port-security mac-address sticky switchport port-security violation restrict
Two employees in the Sales department work different shifts with their laptop computers and share the same Ethernet port in the office. Which set of commands would allow only these two laptops to use the Ethernet port and create violation log entry without shutting down the port if a violation occurs? switchport mode access switchport port-security switchport mode access switchport port-security switchport port-security maximum 2 switchport port-security mac-address sticky switchport port-security violation restrict switchport mode access switchport port-security maximum 2 switchport port-security mac-address sticky switchport mode access switchport port-security maximum 2 switchport port-security mac-address sticky switchport port-security violation protect
All VLANs will be allowed across the trunk
What VLANs are allowed across a trunk when the range of allowed VLANs is set to the default value? The switches will negotiate via VTP which VLANs to allow across the trunk Only VLAN 1 will be allowed across the trunk. Only the native VLAN will be allowed across the trunk All VLANs will be allowed across the trunk
to specify the destinations of captured messages to select the type of logging information that is captured to gather logging information for monitoring and troubleshooting
What are three functions provided by the syslog service? (Choose three.) to specify the destinations of captured messages to periodically poll agents for data to select the type of logging information that is captured to gather logging information for monitoring and troubleshooting to provide traffic analysis to provide statistics on packets that are flowing through a Cisco device
It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses.
What benefit does NAT64 provide? -It allows sites to use private IPv6 addresses and translates them to global IPv6 addresses. -It allows sites to connect multiple IPv4 hosts to the Internet via the use of a single public IPv4 address. -It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses. -It allows sites to use private IPv4 addresses, and thus hides the internal addressing structure from hosts on public IPv4 networks.
Port security was enabled on the switch port, and an unauthorized connection was made on switch port Fa0/8.
What caused the following error message to appear?01:11:12: %PM-4-ERR_DISABLE: psecure-violation error detected on Fa0/8, putting Fa0/8 in err-disable state01:11:12: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 0011.a0d4.12a0 on port FastEthernet0/8.01:11:13: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/8, changed state to down01:11:14: %LINK-3-UPDOWN: Interface FastEthernet0/8, changed state to down -Another switch was connected to this switch port with the wrong cable. -An unauthorized user tried to telnet to the switch through switch port Fa0/8. NAT was enabled on a router, and a private IP address arrived on switch port Fa0/8. -A host with an invalid IP address was connected to a switch port that was previously unused. -Port security was enabled on the switch port, and an unauthorized connection was made on switch port Fa0/8.
provides access to the user
What is a basic function of the Cisco Borderless Architecture access layer? aggregates Layer 2 broadcast domains aggregates Layer 3 routing boundaries provides access to the user provides fault isolation
It identifies the gateway IP address to which the router sends all IP packets for which it does not have a learned or static route
What is a characteristic of a static route that creates a gateway of last resort? -It backs up a route already discovered by a dynamic routing protocol. -It uses a single network address to send multiple static routes to one destination address. -It identifies the gateway IP address to which the router sends all IP packets for which it does not have a learned or static route -It is configured with a higher administrative distance than the original dynamic routing protocol has.
provides access to the rest of the network through switching, routing, and network access policies
What is a characteristic of the distribution layer in the three layer hierarchical model? -provides access to the rest of the network through switching, routing, and network access policies -distributes access to end users -represents the network edge -acts as the backbone for the network, aggregating and distributing network traffic throughout the campus
The size of the broadcast domain is increased.
What is a result of connecting two or more switches together? The number of broadcast domains is increased. The size of the broadcast domain is increased. The number of collision domains is reduced. The size of the collision domain is increased.
an extended maintenance release
What is indicated by the M in the Cisco IOS image name c1900-universalk9-mz.SPA.153-3.M.bin? a maintenance deployment release a minor release a mainline release an extended maintenance release
to enable the router as an IPv6 router
What is the effect of configuring the ipv6 unicast-routing command on a router? to assign the router to the all-nodes multicast group to enable the router as an IPv6 router to permit only unicast packets on the router to prevent the router from joining the all-routers multicast group
access
What is the name of the layer in the Cisco borderless switched network design that would have more switches deployed than other layers in the network design of a large organization? access core data link network network access
It is a key for enabling an IOS feature set.
What is the purpose of the Cisco PAK? It is a key for enabling an IOS feature set. It is a proprietary encryption algorithm. It is a compression file type used when installing IOS 15 or an IOS upgrade. It is a way to compress an existing IOS so that a newer IOS version can be co-installed on a router.
to notify other DHCP servers on the subnet that the IP address was leased
What is the reason why the DHCPREQUEST message is sent as a broadcast during the DHCPv4 process? for hosts on other subnets to receive the information to notify other hosts not to request the same IP address for routers to fill their routing tables with this new information to notify other DHCP servers on the subnet that the IP address was leased
the MAC address of the IPv6 enabled interface
What is used in the EUI-64 process to create an IPv6 interface ID on an IPv6 enabled interface? the MAC address of the IPv6 enabled interface a randomly generated 64-bit hexadecimal address an IPv6 address that is provided by a DHCPv6 server an IPv4 address that is configured on the interface
Forward the frame out all ports except the port where the frame is received.
What will a Cisco LAN switch do if it receives an incoming frame and the destination MAC address is not listed in the MAC address table? Drop the frame. Send the frame to the default gateway address. Use ARP to resolve the port that is related to the frame. Forward the frame out all ports except the port where the frame is received.
The DHCP server function of the router will not issue the addresses from 172.16.4.1 through 172.16.4.5 inclusive
What will be the result of adding the command ip dhcp excluded-address 172.16.4.1 172.16.4.5 to the configuration of a local router that has been configured as a DHCP server? -Traffic that is destined for 172.16.4.1 and 172.16.4.5 will be dropped by the router. -Traffic will not be routed from clients with addresses between 172.16.4.1 and 172.16.4.5. -The DHCP server function of the router will not issue the addresses from 172.16.4.1 through 172.16.4.5 inclusive. -The router will ignore all traffic that comes from the DHCP servers with addresses 172.16.4.1 and 172.16.4.5.
Product Activation Key
When a customer purchases a Cisco IOS 15.0 software package, what serves as the receipt for that customer and is used to obtain the license as well? Software Claim Certificate Unique Device Identifier End User License Agreement Product Activation Key
frame error checking
Which advantage does the store-and-forward switching method have compared with the cut-through switching method? collision detecting frame error checking faster frame forwarding frame forwarding using IPv4 Layer 3 and 4 information
Error-free fragments are forwarded, so switching accurs with lower latency.
Which characteristic describes cut-through switching? Frames are forwarded without any error checking. Error-free fragments are forwarded, so switching accurs with lower latency. Buffering is used to support different Ethernet speeds. Only outgoing frames are checked for errors.
ip address dhcp
Which command, when issued in the interface configuration mode of a router, enables the interface to acquire an IPv4 address automatically from an ISP, when that link to the ISP is enabled? ip dhcp pool ip address dhcp service dhcp ip helper-address
no shutdown
Which commands are used to re-enable a port that has been disabled as a result of a port security violation? shutdown no shutdown no switchport port-securityshutdown no switchport port-security violation shutdown shutdown no switchport port-security maximum
access-list 1 permit 10.0.0.0 0.255.255.255 ip nat inside source list 1 interface serial 0/0/0 overload
Which configuration would be appropriate for a small business that has the public IP address of 209.165.200.225/30 assigned to the external interface on the router that connects to the Internet? access-list 1 permit 10.0.0.0 0.255.255.255 ip nat inside source list 1 interface serial 0/0/0 overload access-list 1 permit 10.0.0.0 0.255.255.255 ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240 ip nat inside source list 1 pool comp access-list 1 permit 10.0.0.0 0.255.255.255 ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240 ip nat inside source list 1 pool comp overload access-list 1 permit 10.0.0.0 0.255.255.255 ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240 ip nat inside source list 1 pool comp overload ip nat inside source static 10.0.0.5 209.165.200.225
the source MAC address and the incoming port
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
a collapsed core network design
Which network design may be recommended for a small campus site that consists of a single building with a few users? -a network design where the access and distribution layers are collapsed into a single layer -a network design where the access and core layers are collapsed into a single layer -a collapsed core network design -a three-tier campus network design where the access, distribution, and core are all separate layers, each one with very specific functions
a level 1 ultimate route
Which route will a router use to forward an IPv4 packet after examining its routing table for the best match with the destination address? a level 1 child route a level 1 parent route a level 1 ultimate route a level 2 supernet route
ip dhcp excluded-address 192.168.100.1 192.168.100.10 ip dhcp excluded-address 192.168.101.254 ip dhcp pool LAN POOL-100 network 192.168.100.0 255.255.254.0 default-router 192.168.100.1
Which set of commands will configure a router as a DHCP server that will assign IPv4 addresses to the 192.168.100.0/23 LAN while reserving the first 10 and the last addresses for static assignment? ip dhcp excluded-address 192.168.100.1 192.168.100.10 ip dhcp excluded-address 192.168.100.254 ip dhcp pool LAN POOL-100 network 192.168.100.0 255.255.255.0 ip default gateway 192.168.100.1 ip dhcp excluded-address 192.168.100.1 192.168.100.9 ip dhcp excluded-address 192.168.101.254 ip dhcp pool LAN POOL-100 ip network 192.168.100.0 255.255.254.0 ip default-gateway 192.168.100.1 ip dhcp excluded-address 192.168.100.1 192.168.100.10 ip dhcp excluded-address 192.168.101.254 ip dhcp pool LAN POOL-100 network 192.168.100.0 255.255.254.0 default-router 192.168.100.1 dhcp pool LAN-POOL 100 ip dhcp excluded-address 192.168.100.1 192.168.100.9 ip dhcp excluded-address 192.168.100.254 network 192.168.100.0 255.255.254.0 default-router 192.168.101.1
They are not stored in the vlan.dat file
Which statement describes a characteristic of the extended range VLANs that are created on a Cisco 2960 switch? They are numbered VLANs 1002 to 1005. They cannot be used across multiple switches. They are reserved to support Token Ring VLANs. They are not stored in the vlan.dat file
It is automatically updated and maintained by routing protocols.
Which statement describes a route that has been learned dynamically? It is automatically updated and maintained by routing protocols. It is unaffected by changes in the topology of the network. It has an administrative distance of 1. It is identified by the prefix C in the routing table.
Frame forwarding decisions are based on MAC address and port mappings in the CAM table
Which statement is correct about Ethernet switch frame forwarding decisions? -Unicast frames are always forwarded regardless of the destination MAC address -Frame forwarding decisions are based on MAC address and port mappings in the CAM table -Cut-through frame forwarding ensures that invalid frames are always dropped -Only frames with a broadcast destination address are forwarded out all active switch ports
store-and-forward switching
Which switching method drops frames that fail the FCS check? borderless switching cut-through switching ingress port buffering store-and-forward switching
The native VLAN traffic will be untagged across the trunk link. The native VLAN provides a common identifier to both ends of a trunk.
Which two characteristics describe the native VLAN? (Choose two.) -Designed to carry traffic that is generated by users, this type of VLAN is also known as the default VLAN. -The native VLAN traffic will be untagged across the trunk link. -This VLAN is necessary for remote management of a switch. -High priority traffic, such as voice traffic, uses the native VLAN. -The native VLAN provides a common identifier to both ends of a trunk.
scalability speed of convergence
Which two factors are important when deciding which interior gateway routing protocol to use? (Choose two.) scalability ISP selection speed of convergence the autonomous system that is used campus backbone architecture
The NTP master will claim to be synchronized at the configured stratum number. Other systems will be willing to synchronize to that master using NTP.
Which two statements are correct if a configured NTP master on a network cannot reach any clock with a lower stratum number? (Choose two.) The NTP master will claim to be synchronized at the configured stratum number. An NTP server with a higher stratum number will become the master. Other systems will be willing to synchronize to that master using NTP. The NTP master will be the clock with 1 as its stratum number. The NTP master will lower its stratum number.
floating static route
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
untagged
Which type of traffic is designed for a native VLAN? management user-generated tagged untagged
IPsec
Which type of traffic would most likely have problems when passing through a NAT device? Telnet IPsec HTTP ICMP DNS