1. Which video application has the strictest latency requirement?
video collaboration
video conferencing
video surveillance
video signaling
video conferencing
video surveillance
video signaling
2. Which protocol does a Lightweight AP use to communicate with the Wireless LAN Controller?
802.1Q
IPsec
LWAPP
TCP
802.1Q
IPsec
LWAPP
TCP
3. How does a Cisco IP phone discover which VLAN to use for voice traffic?
CDP
DHCP
TFTP
POST
CDP
DHCP
TFTP
POST
4.
Refer to the exhibit. A user has a PC that connects to a VoIP phone and the phone connects to port Fa0/1 on the switch. The user is complaining about not being able to access the network. The user cannot access any local print servers and cannot ping any neighboring devices. The administrator attempts to ping the PC of the user but is unsuccessful. Based on the output of the show port-security command, what could be the issue?
The switch port has not been able to detect any devices connected to it.
The switch port detected more than one MAC address.
The switch port detected a bridging loop.
The switch port detected a MAC address that belongs to a different VLAN.
Refer to the exhibit. A user has a PC that connects to a VoIP phone and the phone connects to port Fa0/1 on the switch. The user is complaining about not being able to access the network. The user cannot access any local print servers and cannot ping any neighboring devices. The administrator attempts to ping the PC of the user but is unsuccessful. Based on the output of the show port-security command, what could be the issue?
The switch port has not been able to detect any devices connected to it.
The switch port detected more than one MAC address.
The switch port detected a bridging loop.
The switch port detected a MAC address that belongs to a different VLAN.
5.
Refer to the exhibit. Wireless network users are complaining that they are not able to register with the Wireless LAN Controller. Wireless clients use DHCP to obtain their IP configuration information from R1. Based on the output that is shown, what is the reason that the wireless clients are unable to register with the controller?
The DHCP configuration is missing option 43.
The DCHP pool should be specified as 10.10.0.0/16 to include both VLANs.
The DHCP default-router command must specify the IP address of the WLC.
The DHCP configuration should specify the 10.10.20.0/24 pool, as this is where the WLC is located.
Refer to the exhibit. Wireless network users are complaining that they are not able to register with the Wireless LAN Controller. Wireless clients use DHCP to obtain their IP configuration information from R1. Based on the output that is shown, what is the reason that the wireless clients are unable to register with the controller?
The DHCP configuration is missing option 43.
The DCHP pool should be specified as 10.10.0.0/16 to include both VLANs.
The DHCP default-router command must specify the IP address of the WLC.
The DHCP configuration should specify the 10.10.20.0/24 pool, as this is where the WLC is located.
6. Users complain that voice calls are choppy and of poor quality. A network administrator verifies the settings on the interface and discovers that no QoS has been configured. Which priority level should be applied to the voice traffic in order to improve the quality of voice calls?
normal priority
highest priority
medium priority
lowest priority
normal priority
highest priority
medium priority
lowest priority
7.
Refer to the exhibit. An administrator is troubleshooting why host CL1 cannot communicate with the other hosts in the network. What appears to be the problem?
Port Gi0/1 of ASw1 is disabled.
VLAN 104 is not being permitted on the trunk.
The native VLAN on the trunk should be VLAN 1.
Port Gi0/2 of ASw1 should be configured as a trunk.
Refer to the exhibit. An administrator is troubleshooting why host CL1 cannot communicate with the other hosts in the network. What appears to be the problem?
Port Gi0/1 of ASw1 is disabled.
VLAN 104 is not being permitted on the trunk.
The native VLAN on the trunk should be VLAN 1.
Port Gi0/2 of ASw1 should be configured as a trunk.
8.
Refer to the exhibit. A user is not able to use a VoIP phone. Based on the output, what could be the problem?
The phone is in the wrong VLAN.
The switchport mode is incorrect.
QoS is missing.
CDP is disabled.
Refer to the exhibit. A user is not able to use a VoIP phone. Based on the output, what could be the problem?
The phone is in the wrong VLAN.
The switchport mode is incorrect.
QoS is missing.
CDP is disabled.
9.
Refer to the exhibit. An administrator is troubleshooting a video multicast problem on router R1. Users on the FastEthernet 0/1 are not receiving multicast traffic over the Serial 0/0/0 WAN link. Which statement correctly identifies the problem?
Router R1 has not been configured with the ip multicast-routing command.
The Fa0/1 interface has not been configured with the ip pim sparse-dense-mode command.
The S0/0/0 interface has not been configured with the ip pim sparse-dense-mode command.
The S0/0/0 interface should be configured with the ip pim version 1 command.
The S0/0/0 interface should be configured with the ip pim version 2 command.
Refer to the exhibit. An administrator is troubleshooting a video multicast problem on router R1. Users on the FastEthernet 0/1 are not receiving multicast traffic over the Serial 0/0/0 WAN link. Which statement correctly identifies the problem?
Router R1 has not been configured with the ip multicast-routing command.
The Fa0/1 interface has not been configured with the ip pim sparse-dense-mode command.
The S0/0/0 interface has not been configured with the ip pim sparse-dense-mode command.
The S0/0/0 interface should be configured with the ip pim version 1 command.
The S0/0/0 interface should be configured with the ip pim version 2 command.
10.
Refer to the exhibit. After a major network upgrade, network users complain about poor video application performance. A network administrator verified that all trunk links are up and operational and the EtherChannel configuration is correct. The output of the show interfaces port-channel command reveals that there is a 0 packet output rate over the last 5 minutes on the Po2 uplink. What could be done to correct the issue?
Configure switch A_SW1 to be the root bridge for the network for all VLANs.
Configure switch D_SW1 to be the STP root for VLANs 10 and 20, and D_SW2 to be the root for VLANs 30 and 40.
Remove the EtherChannel trunk uplinks from the access switch A_SW1 to the distribution switches.
Remove the EtherChannel trunk uplinks from the access switch A_SW1 to the distribution switch D_SW2.
Refer to the exhibit. After a major network upgrade, network users complain about poor video application performance. A network administrator verified that all trunk links are up and operational and the EtherChannel configuration is correct. The output of the show interfaces port-channel command reveals that there is a 0 packet output rate over the last 5 minutes on the Po2 uplink. What could be done to correct the issue?
Configure switch A_SW1 to be the root bridge for the network for all VLANs.
Configure switch D_SW1 to be the STP root for VLANs 10 and 20, and D_SW2 to be the root for VLANs 30 and 40.
Remove the EtherChannel trunk uplinks from the access switch A_SW1 to the distribution switches.
Remove the EtherChannel trunk uplinks from the access switch A_SW1 to the distribution switch D_SW2.
11. What value does a Cisco IP phone receive in DHCP option 150?
IP address of TFTP server
IP address of DHCP server
IP address of NTP server
PoE value setting
Voice VLAN setting
CDP neighbor list
IP address of TFTP server
IP address of DHCP server
IP address of NTP server
PoE value setting
Voice VLAN setting
CDP neighbor list
12.
Refer to the exhibit. Users complained that they have experienced performance degradation for all video applications that are coming from the video server. Based on the provided outputs, what could be the possible cause of the problem?
STP is blocking the redundant links that are bundled in both channels, thus causing the video traffic to be dropped.
STP is blocking the redundant links that are bundled in the Po2 channel, thus causing half of the video traffic to be dropped.
STP is alternating between channels when forwarding video traffic over the redundant links, thus causing a loss of video traffic.
STP is blocking the redundant links that are bundled in the Po2 channel, thus causing the video traffic to be forwarded over the Po1 channel only.
Refer to the exhibit. Users complained that they have experienced performance degradation for all video applications that are coming from the video server. Based on the provided outputs, what could be the possible cause of the problem?
STP is blocking the redundant links that are bundled in both channels, thus causing the video traffic to be dropped.
STP is blocking the redundant links that are bundled in the Po2 channel, thus causing half of the video traffic to be dropped.
STP is alternating between channels when forwarding video traffic over the redundant links, thus causing a loss of video traffic.
STP is blocking the redundant links that are bundled in the Po2 channel, thus causing the video traffic to be forwarded over the Po1 channel only.
13.
Refer to the exhibit. A network administrator needs to connect an IP phone to FastEthernet 0/22, which is currently configured to support a workstation. What three configuration commands are recommended to accommodate the addition of the phone? (Choose three.)
no cdp enable
mls qos trust cos
ip dhcp client request
switchport port-security
switchport voice vlan 10
mls qos trust device cisco-phone
switchport port-security mac-address sticky
Refer to the exhibit. A network administrator needs to connect an IP phone to FastEthernet 0/22, which is currently configured to support a workstation. What three configuration commands are recommended to accommodate the addition of the phone? (Choose three.)
no cdp enable
mls qos trust cos
ip dhcp client request
switchport port-security
switchport voice vlan 10
mls qos trust device cisco-phone
switchport port-security mac-address sticky
14. IP phones are unable to register with the router and download their firmware and configuration files. A colleague advises that you should check to ensure that the protocols required for this process are not blocked by the IOS firewall. What two lines should you look for in the ACL? (Choose two.)
permit tcp any any eq 22
permit tcp any any eq 23
permit tcp any any eq ftp
permit udp any any eq 69
permit tcp any any eq http
permit udp any any eq https
permit tcp any any eq www
permit tcp any any eq 2000
permit tcp any any eq 22
permit tcp any any eq 23
permit tcp any any eq ftp
permit udp any any eq 69
permit tcp any any eq http
permit udp any any eq https
permit tcp any any eq www
permit tcp any any eq 2000
15. If an ACL is used on a port that connects to an Cisco IP phone, which two protocols must be allowed in the ACL for the Cisco IP phone to work? (Choose two.)
SCCP
SMTP
SNMP
Telnet
TFTP
WWW
SCCP
SMTP
SNMP
Telnet
TFTP
WWW
16.
Refer to the exhibit. The network security auditing team has added access lists to the network configurations in an attempt to improve network security. Users of the wireless network are now complaining that they can no longer associate to the wireless LAN. Based on the output shown, what must be added to the access list to restore connectivity?
permit tcp any any range 12222 12223
permit udp host 10.10.10.4 host 10.10.20.5 range 12222 12223
permit udp host 10.10.20.5 host 10.10.10.4 range 12222 12223
permit tcp host 10.10.20.5 host 10.10.10.4 range 12222 12223
Refer to the exhibit. The network security auditing team has added access lists to the network configurations in an attempt to improve network security. Users of the wireless network are now complaining that they can no longer associate to the wireless LAN. Based on the output shown, what must be added to the access list to restore connectivity?
permit tcp any any range 12222 12223
permit udp host 10.10.10.4 host 10.10.20.5 range 12222 12223
permit udp host 10.10.20.5 host 10.10.10.4 range 12222 12223
permit tcp host 10.10.20.5 host 10.10.10.4 range 12222 12223
17. A network technician is adding a wireless access point to an existing network. However, the wireless clients will not associate with the AP. What action can be taken to isolate the root cause?
Enable encryption on the AP.
Remove the IP address from the AP.
Temporarily disable ACLs on the AP.
Shut down the LAN interface on the AP.
Enable encryption on the AP.
Remove the IP address from the AP.
Temporarily disable ACLs on the AP.
Shut down the LAN interface on the AP.
18. A network administrator is troubleshooting an IP multicast problem. After the administrator alters an IGMP configuration, which command should be used to verify the multicast routing table entries?
show ip igmp interface
show ip igmp membership
show ip mroute
show ip pim interface
show ip pim neighbor
show ip route
show ip igmp interface
show ip igmp membership
show ip mroute
show ip pim interface
show ip pim neighbor
show ip route
19.
Refer to the exhibit. Which statement is true about the debug ephone register command?
The router was able to successfully register the phone.
There is an IP address mismatch that is detected on the phone.
The IP address that is detected for the phone is 10.1.0.6.
The phone is in Voice VLAN 7.
Refer to the exhibit. Which statement is true about the debug ephone register command?
The router was able to successfully register the phone.
There is an IP address mismatch that is detected on the phone.
The IP address that is detected for the phone is 10.1.0.6.
The phone is in Voice VLAN 7.
20.
Refer to the exhibit. Users who are connected to SW1 are part of the multicast group 224.1.1.1, and they are complaining that they do not receive a video stream from the source. Based on the provided output, what could be done to remedy the problem?
Apply the ip pim sparse-dense-mode command to interface Fa0/1 on router R1.
Apply the ip pim sparse-dense-mode command to interface S0/0/0 on router R2.
Apply the ip igmp join-group command to interface Fa0/0 on router R1.
Apply the ip igmp join-group command to interface Fa0/1 on router R2.
Refer to the exhibit. Users who are connected to SW1 are part of the multicast group 224.1.1.1, and they are complaining that they do not receive a video stream from the source. Based on the provided output, what could be done to remedy the problem?
Apply the ip pim sparse-dense-mode command to interface Fa0/1 on router R1.
Apply the ip pim sparse-dense-mode command to interface S0/0/0 on router R2.
Apply the ip igmp join-group command to interface Fa0/0 on router R1.
Apply the ip igmp join-group command to interface Fa0/1 on router R2.
