Routing, Switching and Wireless Essentials (Final Study Set)

Use the "show ip interface brief" command to see if an interface is down.

132. Employees are unable to connect to servers on one of the internal networks. What should be done or checked? Use the "show ip interface brief" command to see if an interface is down. Verify that there is not a default route in any of the edge router routing tables. Create static routes to all internal networks and a default route to the internet. Check the statistics on the default route for oversaturation.

config)# interface gigabitethernet 1/1 (config-if)# no switchport (config-if)# ip address 192.168.1.2 255.255.255.252 config)# ip routing

A Layer 3 switch routes for three VLANs and connects to a router for Internet connectivity. Which two configurations would be applied to the switch? (Choose two.) (config)# interface gigabitethernet1/1 (config-if)# switchport mode trunk (config)# interface gigabitethernet 1/1 (config-if)# no switchport (config-if)# ip address 192.168.1.2 255.255.255.252 (config)# interface vlan 1 (config-if)# ip address 192.168.1.2 255.255.255.0 (config-if)# no shutdown (config)# interface fastethernet0/4 (config-if)# switchport mode trunk (config)# ip routing

Although DTLS is enabled by default to secure the CAPWAP control channel, it is disabled by default for the data channel.

A WLAN engineer deploys a WLC and five wireless APs using the CAPWAP protocol with the DTLS feature to secure the control plane of the network devices. While testing the wireless network, the WLAN engineer notices that data traffic is being exchanged between the WLC and the APs in plain-text and is not being encrypted. What is the most likely reason for this? DTLS only provides data security through authentication and does not provide encryption for data moving between a wireless LAN controller (WLC) and an access point (AP). Although DTLS is enabled by default to secure the CAPWAP control channel, it is disabled by default for the data channel. DTLS is a protocol that only provides security between the access point (AP) and the wireless client. Data encryption requires a DTLS license to be installed on each access point (AP) prior to being enabled on the wireless LAN controller (WLC).

Ensure that the old default route has been removed from the company edge routers.

A company has just switched to a new ISP. The ISP has completed and checked the connection from its site to the company. However, employees at the company are not able to access the internet. What should be done or checked? Verify that the static route to the server is present in the routing table. Check the configuration on the floating static route and adjust the AD. Ensure that the old default route has been removed from the company edge routers. Create a floating static route to that network.

Channels 1, 6, and 11

A company is deploying a wireless network in the distribution facility in a Boston suburb. The warehouse is quite large and it requires multiple access points to be used. Because some of the company devices still operate at 2.4GHz, the network administrator decides to deploy the 802.11g standard. Which channel assignments on the multiple access points will make sure that the wireless channels are not overlapping? channels 1, 5, and 9 channels 1, 6, and 11 channels 1, 7, and 13 channels 2, 6, and 10

Sticky secure MAC address

A company security policy requires that all MAC addressing be dynamically learned and added to both the MAC address table and the running configuration on each switch. Which port security configuration will accomplish this? auto secure MAC addresses dynamic secure MAC addresses static secure MAC addresses sticky secure MAC addresses

MAC address table overflow

A cybersecurity analyst is using the macof tool to evaluate configurations of switches deployed in the backbone network of an organization. Which type of LAN attack is the analyst targeting during this evaluation? VLAN hopping DHCP spoofing MAC address table overflow VLAN double-tagging

Check the configuration of the exit interface on the new static route.

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.

the virtual IP address and the virtual MAC address for the HSRP group 1

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

D. The command interface gigabitEthernet 0/0.1 is wrong.

A network administrator configures R1 for inter-VLAN routing between VLAN 10 and VLAN 20. However, the devices in VLAN 10 and VLAN 20 cannot communicate. Based on the configuration in the exhibit, what is a possible cause for the problem? A. The port Gi0/0 should be configured as trunk port. B. The encapsulation is misconfigured on a subinterface. C. A no shutdown command should be added in each subinterface configuration. D. The command interface gigabitEthernet 0/0.1 is wrong.

Restrict

A network administrator configures the port security feature on a switch. The security policy specifies that each access port should allow up to two MAC addresses. When the maximum number of MAC addresses is reached, a frame with the unknown source MAC address is dropped and a notification is sent to the syslog server. Which security violation mode should be configured for each access port? shutdown restrict warning protect

R1(config)# int G0/0 R1(config-if)# ip helper-address 10.2.0.250

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 10.1.0.254 R1(config)# interface G0/0 R1(config-if)# ip helper-address 10.2.0.250 R1(config)# interface G0/1 R2(config-if)# ip helper-address 10.2.0.250 R2(config)# interface G0/0

R1(config-if)# ip helper-address 10.2.0.250 R1(config)# interface G0/0

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

STP will block one of the redundant links.

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.

The VLANs for user access ports should be different VLANs than any native VLANs used on trunk ports.

A network administrator has found a user sending a double-tagged 802.1Q frame to a switch. What is the best solution to prevent this type of attack? The native VLAN number used on any trunk should be one of the active data VLANs. The VLANs for user access ports should be different VLANs than any native VLANs used on trunk ports. Trunk ports should be configured with port security. Trunk ports should use the default VLAN as the native VLAN number.

Controller

A network administrator is adding a new WLAN on a Cisco 3500 series WLC. Which tab should the administrator use to create a new VLAN interface to be used for the new WLAN? WIRELESS MANAGEMENT CONTROLLER WLANs

It checks the source MAC address in the Ethernet header against the sender MAC address in the ARP body.

A network administrator is configuring DAI on switch SW1. What is the result of entering the exhibited commands? ip inspection validate src-mac It checks the source MAC address in the Ethernet header against the sender MAC address in the ARP body. It checks the source MAC address in the Ethernet header against the destination MAC address in the ARP body. Verifies that the destination MAC address in the Ethernet header matches the target MAC address in the ARP body.

To restrict access to the WLAN by authorized, authenticated users only

A network administrator is configuring a WLAN. Why would the administrator change the default DHCP IPv4 addresses on an AP? to restrict access to the WLAN by authorized, authenticated users only to monitor the operation of the wireless network to reduce outsiders intercepting data or accessing the wireless network by using a well-known address range to reduce the risk of interference by external devices such as microwave ovens

to eliminate outsiders scanning for available SSIDs in the area

A network administrator is configuring a WLAN. Why would the administrator disable the broadcast feature for the SSID? to eliminate outsiders scanning for available SSIDs in the area to reduce the risk of interference by external devices such as microwave ovens to reduce the risk of unauthorized APs being added to the network to provide privacy and integrity to wireless traffic by using encryption

To facilitate group configuration and management of multiple WLANs through a WLC

A network administrator is configuring a WLAN. Why would the administrator use a WLAN controller? to centralize management of multiple WLANs to provide privacy and integrity to wireless traffic by using encryption to facilitate group configuration and management of multiple WLANs through a WLC to provide prioritized service for time-sensitive applications

The new WLAN needs to be enabled.

A network administrator is configuring a WLC to provide WLAN access to users in an office building. When testing the newly created WLAN, the administrator does not see the SSID from a wireless device. What is a possible cause? The WLAN security setting is incorrect. The new WLAN needs to be enabled. The APs have not been configured for the new WLAN The RADIUS server is not operational.

IP address Vty lines Default gateway

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.) IP address VTP domain vty lines default VLAN default gateway loopback address

The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.

A network administrator is configuring a router as a DHCPv6 server. The administrator issues a show ipv6 dhcp pool command to verify the configuration. Which statement explains the reason that the number of active clients is 0? The default gateway address is not provided in the pool. No clients have communicated with the DHCPv6 server yet. The IPv6 DHCP pool configuration has no IPv6 address range specified. The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.

It identifies the VLAN number.

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.

stateful

A network administrator is configuring the router R1 for IPv6 address assignment. Based on the partial configuration, which IPv6 global unicast address assignment scheme does the administrator intend to implement? stateful stateless manual configuration SLAAC

Link types are determined automatically.

A network administrator is preparing the implementation of Rapid PVST+ on a production network. How are the Rapid PVST+ link types determined on the switch interfaces? Link types can only be configured on access ports configured with a single VLAN. Link types can only be determined if PortFast has been configured. Link types are determined automatically. Link types must be configured with specific port configuration commands.

PAgP

A network administrator is reviewing the configuration of switch S1. Which protocol has been implemented to group multiple physical ports into one logical link? PAgP DTP LACP STP

show etherchannel Port-channel

A network administrator is troubleshooting a problem with EtherChannel. What show command was used to product the exhibited output? show interfaces fastethernet 0/11 etherchannel show etherchannel summary show interfaces Port-channel11 show etherchannel Port-channel

Configure the port as an 802.1q trunk port

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.

The encapsulation dot1Q 5 command contains the wrong VLAN.

A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PC2 cannot communicate with PC1. Based on the output, what is the possible cause of the problem? Gi0/0 is not configured as a trunk port. The command interface GigabitEthernet0/0.5 was entered incorrectly. There is no IP address configured on the interface Gi0/0. The no shutdown command is not entered on subinterfaces. The encapsulation dot1Q 5 command contains the wrong VLAN.

A user passphrase

A network administrator of a small advertising company is configuring WLAN security by using the WPA2 PSK method. Which credential do office users need in order to connect their laptops to the WLAN? the company username and password through Active Directory service a key that matches the key on the AP a user passphrase a username and password configured on the AP

PortFast is not configured on all access ports.

A network administrator uses the spanning-tree portfast bpduguard default global configuration command to enable BPDU guard on a switch. However, BPDU guard is not activated on all access ports. What is the cause of the issue? BPDU guard needs to be activated in the interface configuration command mode. Access ports configured with root guard cannot be configured with BPDU guard. Access ports belong to different VLANs. PortFast is not configured on all access ports.

ipv6 route ::/0 serial 0/1/1

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

GLBP

A network engineer is configuring a LAN with a redundant first hop to make better use of the network resources. Which protocol should the engineer implement? FHRP HSRP VRP GLBP

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 ip protocols show ip interface show cdp neighbors show port-security show mac-address-table

The 5 GHz band has more channels and is less crowded than the 2.4 GHz band, which makes it more suite to streaming multimedia.

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.

enabling IP routing entering "no switchport" on the port connected to the router establishing adjacencies

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.) enabling IP routing modifying the default VLAN entering "no switchport" on the port connected to the router establishing adjacencies assigning ports to VLANs adjusting the route metric assigning the ports to the native VLAN

Configure the new switch as a VTP client. Configure the existing VTP domain name on the new switch.

A new switch is to be added to an existing network in a remote office. The network administrator does not want the technicians in the remote office to be able to add new VLANs to the switch, but the switch should receive VLAN updates from the VTP domain. Which two steps must be performed to configure VTP on the new switch to meet these conditions? (Choose two.) Configure the new switch as a VTP client. Configure the existing VTP domain name on the new switch. Configure an IP address on the new switch. Configure all ports of both switches to access mode. Enable VTP pruning.

Remove the route using the no iP route command

A static route has been configured on a router. However, the destination network no longer exists. What should an administrator do to remove the static route from the routing table? Remove the route using the no ip route command. Change the administrative distance for that route. Change the routing metric for that route. Nothing. The static route will go away on its own.

Create static route to all internal networks and a default route to the internet

A technician is configuring a router for a small company with multiple WLANs and doesn't need the complexity of a dynamic routing protocol. What should be done or checked? Verify that there is not a default route in any of the edge router routing tables. Create static routes to all internal networks and a default route to the internet. Create extra static routes to the same location with an AD of 1. Check the statistics on the default route for oversaturation.

Configure the 5 GHz band for streaming multimedia and time sensitive traffic. Configure the 2.4 GHz band for basic internet traffic that is not time sensitive.

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.

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.

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.

wireless router

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

VLAN hopping An attacker can use switch spoofing or double-tagging to perform a VLAN hopping attack.

All access ports on a switch are configured with the administrative mode of dynamic auto. An attacker, connected to one of the ports, sends a malicious DTP frame. What is the intent of the attacker?

fa0/13 fa0/10 fa0/21

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

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? 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.

Check the routing table for a missing static route.

An administrator notices that large numbers of packets are being dropped on one of the branch routers. What should be done or checked? Create static routes to all internal networks and a default route to the internet. Create extra static routes to the same location with an AD of 1. Check the statistics on the default route for oversaturation. Check the routing table for a missing static route.

because VLAN 99 has not yet been created

Based on the exhibited configuration and output, why is VLAN 99 missing? because VLAN 99 is not a valid management VLAN because there is a cabling problem on VLAN 99 because VLAN 1 is up and there can only be one management VLAN on the switch because VLAN 99 has not yet been created

They improve netw​ork security. They use fewer router resources.

Compared with dynamic routes, what are two advantages of using static routes on a router? (Choose two.) They improve netw​ork 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.

ip route 10.10.0.0 255.255.0.0 209.165.200.225 100

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

switchport trunk native vlan 66 host are on the same vlan as native

DLS1 is connected to another switch, DLS2, via a trunk link. A host that is connected to DLS1 is not able to communicate to a host that is connected to DLS2, even though they are both in VLAN 99. Which command should be added to Fa0/1 on DLS1 to correct the problem?

Immediately after successful authentication against an AAA data source

During the AAA process, when will authorization be implemented? Immediately after successful authentication against an AAA data source Immediately after AAA accounting and auditing receives detailed reports Immediately after an AAA client sends authentication information to a centralized server Immediately after the determination of which resources a user can access

Source MAC: 00E0.FE91.7799 Source IP: 10.1.1.10

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

SW1 floods the frame on all ports on SW1, excluding the port through which the frame entered the switch.

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.

Ethernet multiaccess interfaces will require fully specified static routes to avoid routing inconsistencies.

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.

lowest MAC address

If no bridge priority is configured in PVST, which criteria is considered when electing the root bridge? lowest IP address lowest MAC address highest IP address highest MAC address

The IP address of the default gateway router is not contained in the excluded address list.

If the IP addresses of the default gateway router and the DNS server are correct, what is the configuration problem? Ip dhcp excluded-address 192.168.10.2 192.168.10.9 Ip dhcp excluded-address 192.168.10.254 Ip dchp pool LAN-POOL-1 Network 192.168.10.0 255.255.255.0 Default-router 192.168.10.1 DNS-server 192.168.11.5 Domain-name example.com End The DNS server and the default gateway router should be in the same subnet. The IP address of the default gateway router is not contained in the excluded address list. The default-router and dns-server commands need to be configured with subnet masks. The IP address of the DNS server is not contained in the excluded address list.

Create default static route

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?

when packets are being dropped from a particular directly attached host

In which situation would a technician use the show interfaces switch command? to determine if remote access is enabled when packets are being dropped from a particular directly attached host when an end device can reach local devices, but not remote devices to determine the MAC address of a directly attached network device on a particular interface

forwarding learning

In which two port states does a switch learn MAC addresses and process BPDUs in a PVST network? (Choose two.) blocking disabled forwarding learning listening

GLBP a Cisco proprietary FHRP that provides load sharing in addition to redundancy HSRP a Cisco proprietary FHRP that provides redundancy through use of an active device and standby device VRRP an open standard FHRP that provides redundancy through use of a virtual routers master and one or more backups.

Match Redundancy Protocols. HSRP VRRP GLBP a Cisco proprietary FHRP that provides load sharing in addition to redundancy a Cisco proprietary FHRP that provides redundancy through use of an active device and standby device an open standard FHRP that provides redundancy through use of a virtual routers master and one or more backups.

Data VLANs Configured to carry user generated traffic Default VLAN All switch ports are assigned to this VLAN after initial boot up of the switch Native VLAN Carries untagged traffic Management VLAN An IP address and subnet mask are assigned to the VLAN, allowing the switch to be accessed by HTTP, Telnet, SSH, or SNMP

Match the description to the correct VLAN type. Default VLAN Management VLAN Data VLANs Native VLAN Configured to carry user generated traffic All switch ports are assigned to this VLAN after initial boot up of the switch Carries untagged traffic An IP address and subnet mask are assigned to the VLAN, allowing the switch to be accessed by HTTP, Telnet, SSH, or SNMP Only accessible by the network administrator

data structures tables or databases that are stored in RAM routing protocol messages exchanges routing information and maintains accurate information about networks algorithm a finite list of steps used to determine the best path

Match the dynamic routing protocol component to the characteristic. Data Structures Routing Protocol Messages Algorithm manually implemented routes by an administrator a finite list of steps used to determine the best path tables or databases that are store in RAM exchanges routing information and maintains accurate information about networks

Cut-through Appropriate for high performance computing applications Forwarding process can begin after receive the destination address May forward invalid frames Store-and-Forward error checking before forwarding Forward process only begins after receiving the entire frame Only forwards valid frames

Match the forwarding characteristic to its type. Cut-Through Store-and-Forward appropriate for high-performance computing applications Error checking before forwarding Forwarding process can begin after receiving the destination address Forwarding process only begins after receiving the entire frame may forward invalid frames Only forwards valid frames

Administratively down Disabled Down/down Layer 1 problem (int down) Up/Down Layer 2 problem (protocol) Up/up Operational

Match the link state to the interface and protocol status Disabled Layer 1 problem Layer 2 problem Operational Administratively down Down/down Up/disabled Up/down Up/up

PVST+ Cisco implementation of IEEE 802.1D RSTP Fast converging enhancement of IEEE 8021.D MSTP IEEE standard that reduces the number of STP instances. Rapid PVST+ Proprietary per VLAN implementation of IEEE 802.1w

Match the spanning-tree feature with the protocol type. PVST+ RSTP MSTP MST Rapid PVST+ Proprietary per VLAN implementation of IEEE 802.1w Cisco implementation of IEEE 802.1D Fast converging enhancement of IEEE 8021.D IEEE standard that reduces the number of STP instances.

The forwarding router fails The standby router stops seeing hello messages from forwarding router. The standby router assumes the role of the forwarding router using both the iPad and MAC address of the virtual router.

Match the step number to the sequence of stages that occur during the HSRP failover process. The standby router assumes the role of the forwarding router using both the IP and MAC address of the virtual router. The standby router stops seeing hello messages from the forwarding router. The forwarding router fails. The host initiates an ARP request for the MAC address of the new forwarding router.

WLANs

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

All PortFast-enabled ports

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

any untrusted port

On which port should Dynamic ARP Inspection (DAI) be configured on a switch? on any port where DHCP snooping is disabled any untrusted port access ports only an uplink port to another switch

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 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.

The ip helper-address command was applied on the wrong interface.

R1 has been configured as shown. However, PC1 is not able to receive an IPv4 address. What is the problem?​ The ip helper-address command was applied on the wrong interface. R1 is not configured as a DHCPv4 server.​ A DHCP server must be installed on the same LAN as the host that is receiving the IP address. The ip address dhcp command was not issued on the interface Gi0/1.

Change the destination network and mask to 0.0.0.0 0.0.0.0

R1 was configured with the static route command ip route 209.165.200.224 255.255.255.224 S0/0/0 and consequently users on network 172.16.0.0/16 are unable to reach resources on the Internet. How should this static route be changed to allow user traffic from the LAN to reach the Internet? Add an administrative distance of 254. Change the destination network and mask to 0.0.0.0 0.0.0.0 Change the exit interface to S0/0/1. Add the next-hop neighbor address of 209.165.200.226.

RTA is using the same subnet for VLAN 20 and VLAN 30

Refer to the exhibit. After attempting to enter the configuration that is shown in router RTA, an administrator receives an error and users on VLAN 20 report that they are unable to reach users on VLAN 30. What is causing the problem? A. RTA is using the same subnet for VLAN 20 and VLAN 30. B. There is no address on Fa0/0 to use as a default gateway. C. Dot1q does not support subinterfaces. D. The no shutdown command should have been issued on Fa0/0.20 and Fa0/0.30.

Enable DTP on both ends of the trunk. Enabling DTP on both switches simply allows negotiation of trunking. The "Negotiation of Trunking" line in the graphic shows that DTP is already enabled. The graphic also shows how the native VLAN is 1, and the default VLAN for any Cisco switch is 1. The graphic shows the PCs are to be in VLAN 20.

Refer to the exhibit. All workstations are configured correctly in VLAN Workstations that are connected to switch SW1 are not able to send traffic to workstations on SW2. What could be done to remedy the problem?

Change the administrative distance to 120.

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.

Auto Desirable On

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

The allowed VLANs on the backup link were not configured correctly.

Successful inter-VLAN routing has been operating on a network with multiple VLANs across multiple switches for some time. When an inter-switch trunk link fails and Spanning Tree Protocol brings up a backup trunk link, it is reported that hosts on two VLANs can access some, but not all the network resources that could be accessed previously. Hosts on all other VLANS do not have this problem. What is the most likely cause of this problem? The protected edge port function on the backup trunk interfaces has been disabled. The allowed VLANs on the backup link were not configured correctly. Dynamic Trunking Protocol on the link has failed. Inter-VLAN routing also failed when the trunk link failed.

+ Port security can only be configured on static access ports, trunk ports, or 802.1Q tunnel ports. + A secure port cannot be a dynamic access port. + A secure port cannot be a destination port for Switched Port Analyzer (SPAN). + A secure port cannot belong to a Fast EtherChannel or Gigabit EtherChannel port group. + You cannot configure static secure or sticky secure MAC addresses on a voice VLAN. + When you enable port security on an interface that is also configured with a voice VLAN, you must set the maximum allowed secure addresses on the port to at least two. + If any type of port security is enabled on the access VLAN, dynamic port security is automatically enabled on the voice VLAN. + When a voice VLAN is configured on a secure port that is also configured as a sticky secure port, all addresses seen on the voice VLAN are learned as dynamic secure addresses, and all addresses seen on the access VLAN (to which the port belongs) are learned as sticky secure addresses. + The switch does not support port security aging of sticky secure MAC addresses.+ The protect and restrict options cannot be simultaneously enabled on an interface.

The administrator wants to enable port security on an interface on switch S1, but the command was rejected. Which conclusion can be drawn?​

VLAN configuration

The configuration shows the commands entered by a network administrator for inter-VLAN routing. However, host PCA cannot communicate with PCB. Which part of the inter-VLAN configuration causes the problem? trunking port mode on the two switch FastEthernet ports VLAN configuration router port configuration

R2(config)# ip route 172.16.2.0 255.255.255.0 172.16.3.1

The exhibit shows two PCs called PC A and PC B, two routes called R1 and R2, and two switches. PC A has the address 172.16.1.1/24 and is connected to a switch and into an interface on R1 that has the IP address 172.16.1.254. PC B has the address 172.16.2.1/24 and is connected to a switch that is connected to another interface on R1 with the IP address 172.16.2.254. The serial interface on R1 has the address 172.16.3.1 and is connected to the serial interface on R2 that has the address 172.16.3.2/24. R2 is connected to the internet cloud. Which command will create a static route on R2 in order to reach PC B? R2(config)# ip route 172.16.2.1 255.255.255.0 172.16.3.1 R2(config)# ip route 172.16.2.0 255.255.255.0 172.16.2.254 R2(config)# ip route 172.16.2.0 255.255.255.0 172.16.3.1 R2(config)# ip route 172.16.3.0 255.255.255.0 172.16.2.254

Configure either trunk port in the dynamic desirable mode.

The network administrator configures both switches as displayed. However, host C is unable to ping host D and host E is unable to ping host F. What action should the administrator take to enable this communication? Associate hosts A and B with VLAN 10 instead of VLAN 1. Configure either trunk port in the dynamic desirable mode. Include a router in the topology. Remove the native VLAN from the trunk. Add the switchport nonegotiate command to the configuration of SW2.

This port is currently up. Security violations will cause this port to shut down immediately. There is no device currently connected to this port.

The network administrator is configuring the port security feature on switch SWC. The administrator issued the command show port-security interface fa 0/2 to verify the configuration. What can be concluded from the output that is shown? (Choose three.) Three security violations have been detected on this interface. This port is currently up. The port is configured as a trunk link. Security violations will cause this port to shut down immediately. There is no device currently connected to this port. The switch port mode for this interface is access mode.

The root bridge BID. The role of the ports in all VLANs.

To obtain an overview of the spanning tree status of a switched network, a network engineer issues the show spanning-tree command on a switch. Which two items of information will this command display? (Choose two.) The root bridge BID. The role of the ports in all VLANs. The status of native VLAN ports. The number of broadcasts received on each root port. The IP address of the management VLAN interface.

The root bridge BID. The role of the ports in all VLANs.

To obtain an overview of the spanning tree status of a switched network, a network engineer issues the show spanning-tree command on a switch. Which two items of information will this command display? (Choose two.) The root bridge BID. The role of the ports in all VLANs. The status of native VLAN ports. The number of broadcasts received on each root port. The IP address of the management VLAN interface.

source ip address filtering source ip and mac address filtering *has to match options in DHCP snooping Binding Table.

Two options for IPSG (IP Source Guard):

Create static routes to all internal networks and a default route to the internet.

Users are complaining of sporadic access to the internet every afternoon. What should be done or checked? Create static routes to all internal networks and a default route to the internet. Verify that there is not a default route in any of the edge router routing tables. Create a floating static route to that network. Check the statistics on the default route for oversaturation.

It sends a DHCPREQUEST that identifies which lease offer the client is accepting.

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.

The switch adds a MAC address table entry mapping for the destination MAC address and the ingress port.

What action takes place when a frame entering a switch has a multicast destination MAC address? The switch will forward the frame out all ports except the incoming port. The switch forwards the frame out of the specified port. The switch adds a MAC address table entry mapping for the destination MAC address and the ingress port. The switch replaces the old entry and uses the more current port.

The switch forwards the frame out of the specified port.

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.

The switch replaces the old entry and uses the more current port.

What action takes place when the source MAC address of a frame entering a switch appears in the MAC address table associated with a different port? The switch purges the entire MAC address table. The switch replaces the old entry and uses the more current port. The switch updates the refresh timer for the entry. The switch forwards the frame out of the specified port.

The switch adds the MAC address and incoming port number to the table

What action takes place when the source MAC address of a frame entering a switch is not in the MAC address table? The switch adds a MAC address table entry for the destination MAC address and the egress port. The switch adds the MAC address and incoming port number to the table. The switch replaces the old entry and uses the more current port. The switch updates the refresh timer for the entry.

alternate, designated, root, root

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

Enable trunking manually Disable DTP Set the native VLAN to an unused VLAN

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.

to enhance user bandwidth to isolate traffic between segments

What are two reasons a network administrator would segment a network with a Layer 2 switch? (Choose two.) to create fewer collision domains to enhance user bandwidth to create more broadcast domains to eliminate virtual circuits to isolate traffic between segments to isolate ARP request messages from the rest of the network

Store and forward Frame check sequence (FCS) check

What are two switch characteristics that could help alleviate network congestion? (Choose two.) fast internal switching large frame buffers store-and-forward switching low port density frame check sequence (FCS) check

R1 is configured as a DHCPv4 relay agent

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.

the ipv6 unicast-routing command

What command will enable a router to begin sending messages that allow it to configure a link-local address without using an IPv6 DHCP server? a static route the ipv6 route ::/0 command the ipv6 unicast-routing command the ip routing command

Restricts IP traffic based upon the entries in the DHCP Snooping Binding Table

What does IPSG (IP Source Guard) do?

User accounts must be configured locally on each device, which is an unscalable authentication solution.

What is a drawback of the local database method of securing device access that can 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.

introducing a rogue switch and enabling trunking

What is a method to launch a VLAN hopping attack? introducing a rogue switch and enabling trunking sending spoofed native VLAN information sending spoofed IP addresses from the attacking host flooding the switch with MAC addresses

Users will not be able to use the WLAN.

What is a potential issue when using the WLC to upgrade and deploy the latest firmware image to all APs? Usernames and passwords must be manually entered into the AP so that WLAN authentication continues during the upgrade. Old 802.11 standards may not be supported anymore. Only one of the two bands would work at a time. Users will not be able to use the WLAN.

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.

Configure SSH

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.

PVST+ optimizes performance on the network through load sharing.

What is an advantage of PVST+? PVST+ requires fewer CPU cycles for all the switches in the network. PVST+ reduces bandwidth consumption compared to traditional implementations of STP that use CST. PVST+ optimizes performance on the network through autoselection of the root bridge. PVST+ optimizes performance on the network through load sharing.

FE80::/10

What is the IPv6 prefix that is used for link-local addresses? FF01::/8 2001::/3 FC00::/7 FE80::/10

Disable DTP negotiation on all ports. Turn trunking off on all ports that are used to connect to hosts and disable DTP negotiation on all trunking ports to prevent the VLAN hopping attack. This type of attack can be attempted through switch spoofing or double tagging.

What is the best way to prevent a VLAN hopping attack?

Switch(config)# ip arp inspection vlan <vlan-range>

What is the command to enable DAI?

Traps

What is the common term given to SNMP log messages that are generated by network devices and sent to the SNMP server? traps acknowledgments auditing warnings

It enables DAI on specific switch interfaces previously configured with DHCP snooping.

What is the effect of entering the ip arp inspection vlan 10 configuration command on a switch? It specifies the maximum number of L2 addresses allowed on a port. It enables DAI on specific switch interfaces previously configured with DHCP snooping. It enables DHCP snooping globally on a switch. It globally enables BPDU guard on all PortFast-enabled ports.

Enable DHCP snooping globally on a swtich

What is the effect of entering the ip dhcp snooping configuration command on a switch? It enables DHCP snooping globally on a switch. It enables PortFast globally on a switch. It disables DTP negotiations on trunking ports. It manually enables a trunk link.

It disables an unused port.

What is the effect of entering the shutdown configuration command on a switch? It enables BPDU guard on a specific port. It disables an unused port. It enables portfast on a specific switch interface. It disables DTP on a non-trunking interface.

It enables portfast on a specific switch interface

What is the effect of entering the spanning-tree portfast configuration command on a switch? It disables an unused port. It disables all trunk ports. It enables portfast on a specific switch interface. It checks the source L2 address in the Ethernet header against the sender L2 address in the ARP body.

2682112

What is the metric to forward a data packet with the IPv6 destination address 2001:DB8:ACAD:E:240:BFF:FED4:9DD2? 90 128 2170112 2681856 2682112 3193856

WPA2 Enterprise

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

Enable port security

What mitigation plan is best for thwarting a DoS attack that is creating a MAC address table overflow? Disable DTP. Disable STP. Enable port security. Place unused ports in an unused VLAN.

DHCP starvation

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

STP

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

HSRP

What protocol or technology defines a group of routers, one of them defined as active and another one as standby? EtherChannel VTP HSRP DTP

STP

What protocol or technology disables redundant paths to eliminate Layer 2 loops? VTP STP EtherChannel DTP

VTP

What protocol or technology requires switches to be in server mode or client mode? EtherChannel STP VTP DTP

Etherchannel

What protocol or technology uses source IP to destination IP as a load-balancing mechanism? VTP EtherChannel DTP STP

DTP

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

The SSID is broadcast A well-known administrator password is set

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.

forward the packet out Serial0/0/0

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

So that the attacker can see frames that are destined for other hosts

What would be the primary reason an attacker would launch a MAC address overflow attack? so that the switch stops forwarding traffic so that legitimate hosts cannot obtain a MAC address so that the attacker can see frames that are destined for other hosts so that the attacker can execute arbitrary code on the switch

Untrusted by default.

When configuring DAI, all ports associated within the VLAN range are considered to be what?

Ports that connect to other switches - trunks.

When configuring DAI, what types of ports should be configured as trusted ports?

Dynamic ARP Inspection

Which Cisco solution helps prevent ARP spoofing and ARP poisoning attacks? DHCP Snooping IP Source Guard Dynamic ARP Inspection Port Security Web Security Appliance

broadcast DHCPREQUEST

Which DHCPv4 message will a client send to accept an IPv4 address that is offered by a DHCP server? broadcast DHCPACK broadcast DHCPREQUEST unicast DHCPACK unicast DHCPREQUEST

switch 1 set to desirable; switch 2 set to desirable.

Which PAgP mode combination will establish an EtherChannel? switch 1 set to on; switch 2 set to desirable. switch 1 set to desirable; switch 2 set to desirable. switch 1 set to auto; switch 2 set to auto. switch 1 set to auto; switch 2 set to on.

edge ports

Which RSTP ports are connected to end devices? trunk ports designated ports root ports edge ports

spanning-tree vlan 10 priority 0

Which STP priority configuration would ensure that a switch would always be the root switch? spanning-tree vlan 10 priority 0 spanning-tree vlan 10 priority 61440 spanning-tree vlan 10 root primary spanning-tree vlan 10 priority 4096

Interface range g0/4-5

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

ipv6 route ::/0 2001:db8:acad:2::a

Which command would create a valid IPv6 default route? ipv6 route ::/128 2001:db8:acad:1::1 ipv6 route ::/0 2001:db8:acad:2::a ipv6 route ::/0 fe80::1 ipv6 route 2001:db8:acad:1::/64 ::1

MAC address of the virtual router

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

Configure the switch port in access mode Add a voice VLAN Assign the voice VLAN to the switch port Ensure the voice traffic is trusted and tagged with CoS priority value

Which four steps are needed to configure a voice VLAN on a switch port? (Choose four).

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

SLAAC

Which method of IPv6 prefix assignment relies on the prefix contained in RA messages? EUI-64 SLAAC static stateful DHCPv6

Turning on DHCP Snooping

Which mitigation technique would prevent rogue servers from providing false IP configuration parameters to clients? implementing port security turning on DHCP snooping disabling CDP on edge ports implementing port-security on edge ports

Rogue switches on a network

Which network attack is mitigated by enabling BPDU guard? rogue switches on a network CAM table overflow attacks MAC address spoofing rogue DHCP servers on a network

ip route 0.0.0.0 0.0.0.0 S0/0/0

Which option shows a correctly configured IPv4 default static route? ip route 0.0.0.0 255.255.255.0 S0/0/0 ip route 0.0.0.0 0.0.0.0 S0/0/0 ip route 0.0.0.0 255.255.255.255 S0/0/0 ip route 0.0.0.0 255.0.0.0 S0/0/0

S 10.17.2.0/24 [1/0] via 10.16.2.2

Which route was configured as a static route to a specific network using the next-hop address? S 10.17.2.0/24 [1/0] via 10.16.2.2 S 0.0.0.0/0 [1/0] via 10.16.2.2 S 10.17.2.0/24 is directly connected, Serial 0/0/0 C 10.16.2.0/24 is directly connected, Serial0/0/0

The broadcast domain expands to all switches.

Which statement describes a result after multiple Cisco LAN switches are interconnected? The broadcast domain expands to all switches. 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 MAC address.

It treats frame as unknown unicast and floods all incoming frames to all ports within the local VLAN

Which statement describes the behavior of a switch when the MAC address table is full? It treats frames as unknown unicast and floods all incoming frames to all ports on the switch. It treats frames as unknown unicast and floods all incoming frames to all ports across multiple switches. It treats frames as unknown unicast and floods all incoming frames to all ports within the local VLAN. It treats frames as unknown unicast and floods all incoming frames to all ports within the collision domain.

Frame forwarding decisions are based on MAC address and port mappings in the CAM table.

Which statement is correct about how a Layer 2 switch determines how to forward frames? Frame forwarding decisions are based on MAC address and port mappings in the CAM table. Only frames with a broadcast destination address are forwarded out all active switch ports. Cut-through frame forwarding ensures that invalid frames are always dropped.

ipv6 nd other-config-flag

Which statement shown in the output allows router R1 to respond to stateless DHCPv6 requests? ipv6 nd other-config-flag​ prefix-delegation 2001:DB8:8::/48 00030001000E84244E70​ ipv6 dhcp server LAN1​ ipv6 unicast-routing dns-server 2001:DB8:8::8​

ipv6 route 2001:db8:12:10::/64 S0/0/1 fe80::2

Which static route command can be entered on R1 to forward traffic to the LAN connected to R2? ipv6 route 2001:db8:12:10::/64 S0/0/0 ipv6 route 2001:db8:12:10::/64 S0/0/1 fe80::2 ipv6 route 2001:db8:12:10::/64 S0/0/0 fe80::2 ipv6 route 2001:db8:12:10::/64 S0/0/1 2001:db8:12:10::1

ip route 172.16.1.0 255.255.255.0 s0/0/0 121

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

ip route 172.16.1.0 255.255.255.0 s0/0/0 121

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 91 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

authenticator

Which term describes the role of a Cisco switch in the 802.1X port-based access control? agent supplicant authenticator authentication server

802.11b 802.11g 802.11n

Which three Wi-Fi standards operate in the 2.4GHz range of frequencies? (Choose three.) 802.11a 802.11b 802.11g 802.11n 802.11ac

MAC address extended system ID bridge priority

Which three components are combined to form a bridge ID? MAC address extended system ID IP address cost bridge priority port ID

Host C Host D Host F

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.) VLAN Memebership VLAN 1 Hosts A, C, D, F VLAN 2 Hosts B, E, G host B host C host D host E host F host G

dynamic desirable - dynamic desirable dynamic desirable - trunk dynamic desirable - dynamic auto

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

An autonegotiation failure can result in connectivity issues. When the speed is set to 1000 Mb/s, the switch ports will operate in full-duplex mode. The duplex and speed settings of each switch port can be manually configured.

Which three statements accurately describe duplex and speed settings on Cisco 2960 switches? (Choose three.) An autonegotiation failure can result in connectivity issues. When the speed is set to 1000 Mb/s, the switch ports will operate in full-duplex mode. The duplex and speed settings of each switch port can be manually configured. Enabling autonegotiation on a hub will prevent mismatched port speeds when connecting the hub to the switch. By default, the speed is set to 100 Mb/s and the duplex mode is set to autonegotiation. By default, the autonegotiation feature is disabled.

Configure the switch with the name of the new management domain Select the correct VTP mode and version. Reboot the switch

Which three steps should be taken before moving a Cisco switch to a new VTP management domain? (Choose three.) Configure the switch with the name of the new management domain. Reset the VTP counters to allow the switch to synchronize with the other switches in the domain. Configure the VTP server in the domain to recognize the BID of the new switch. Download the VTP database from the VTP server in the new domain. Select the correct VTP mode and version. Reboot the switch

The EtherChannel is down. The port channel ID is 2.

Which tow conclusions can be drawn from the output? The EtherChannel is down. The port channel ID is 2. The port channel is a Layer 3 channel. The bundle is fully operational. The load-balancing method used is source port to destination port.

Trunk 2

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

DHCP Snooping Port Security

Which two Cisco solutions help prevent DHCP starvation attacks? (Choose two.) DHCP Snooping IP Source Guard Dynamic ARP Inspection Port Security Web Security Appliance

Server Transport

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

Frame translation to other protocols Association and re-association of roaming clients

Which two functions are performed by a WLC when using split media access control (MAC)? (Choose two.) packet acknowledgments and retransmissions frame queuing and packet prioritization beacons and probe responses frame translation to other protocols association and re-association of roaming clients

TACACS+ RADIUS

Which two protocols are used to provide server-based AAA authentication? (Choose two.) 802.1x SSH SNMP TACACS+ RADIUS

In a switched network, they are mostly configured b/w switches at the core and distribution layers They are not associated w/ a particular VLAN

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.

RSTP STP

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

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

WPA2 with AES

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

It uses the MAC-address-to-IP-address binding database to validate an ARP packet.

Why is DHCP snooping required when using the Dynamic ARP Inspection feature? It relies on the settings of trusted and untrusted ports set by DHCP snooping. It uses the MAC address table to verify the default gateway IP address. It redirects ARP requests to the DHCP server for verification. It uses the MAC-address-to-IP-address binding database to validate an ARP packet.

When you want to limit the number of VLAN's needed to separate traffic.

Why would you use PVLANs (Private VLANs)

Set the WAN connection in the wireless router as a DHCP client. explaination: In a SOHO environment, a wireless router connects to an ISP via a DSL or cable modem. The IP address between the wireless router and ISP site is typically assigned by the ISP through DHCP. The DSL modem does not manage IP address allocation.

a small coffee shop is offering free Wi-Fi to customers. The network includes a wireless router and a DSL modem that is connected to the local phone company. What method is typically used to configure the connection to the phone company? Set the WAN connection in the wireless router as a DHCP client. Set the connection between the wireless router and the DSL modem as a private IP network. Set the DSL modem as a DHCP client to get a public IP address from the wireless router. Set the DSL modem as a DHCP client to the phone company and a DHCP server for the internal connection.