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1. 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.

2.

Refer to the exhibit. Company A is deploying IP telephony in their offices. A network technician unplugs the patch cable that currently connects to the PC from the wall jack and then plugs the cable into the port labeled as 10/100 PC on the IP phone. The technician next uses another patch cable to connect the switch port on the IP phone to the wall jack. After completing these changes, the technician notices that the IP phone cannot initialize and that the PC loses connectivity. The technician then checks the configuration on the switch. According to the output of the show running-config command, what should the technician do next in order to find the cause of the problem? Switch the two patch cables that connect to the IP phone. Make sure that the voice VLAN 700 is allowed on the trunking port. Make sure that the ports for Skinny and TFTP are not blocked by ACLs. Make sure that the port security setting allows more than one MAC address.

3.

Refer to the exhibit. The lightweight access point has just been added to the network. Which protocol is used for the access point to discover the WLAN controller? DHCP SCCP 802.1Q 802.1X LWAPP

4.

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.

How does a Cisco IP phone discover which VLAN to use for voice traffic? CDP DHCP TFTP POST

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

In testing an IP telephony deployment, a network administrator notices that IP phones are unable to register with the router and download configuration files. A coworker suggests checking that the protocols needed for the process are not blocked by the firewall. What two protocols should be permitted by the ACL in order for the IP phones to register and obtain configuration files? (Choose two.) FTP SSH SCP TFTP HTTP SCCP

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

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. 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. A user reports that calls made on a newly added IP phone are often choppy and of poor quality. A network administrator checks the configuration of the switch AL_SW1 on the interface Fa0/11 to which the new IP phone is connected. According to the display of the show mls qos interface fa0/11 command, what could be a possible cause for the poor quality of voice service? The default CoS value is set too low. QoS has not been enabled on the switch. The IP phone is not recognized by the switch. The port is resetting the DSCP value on a received voice packet.

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. 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.

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

Refer to the exhibit. After a major network upgrade, network users complain about poor video application performance. A network administrator verifies 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? Change the queuing strategy in the A_SW1 switch. Configure switch A_SW1 to be the root bridge for all VLANs. Restart the Po2 uplink by issuing the shutdown and no shutdown commands. Configure switch D_SW1 to be the STP root bridge for VLANs 10 and 20 and D_SW2 to be the root bridge for VLANs 30 and 40.

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 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. 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

Which video application has the strictest latency requirement? video collaboration video conferencing video surveillance video signaling