Module 13 Flashcards
What is the main objective of the WLAN Configuration module?
Implement a WLAN using a wireless router and WLC.
What is the purpose of configuring a WLAN for a remote site?
To support a remote site.
What authentication method is used when configuring a basic WLAN on the WLC?
WPA2 PSK authentication.
What are the key steps for configuring a basic WLAN on the WLC?
- Create the WLAN
- Apply and Enable the WLAN
- Select the Interface
- Secure the WLAN
- Verify the WLAN is Operational
- Monitor the WLAN
True or False: The WLAN menu on the left is used to view the newly configured WLAN and its settings.
True
What tab is used to monitor WLAN operations on the WLC?
Monitor tab.
What is the first action to take when configuring a WLAN on the WLC?
Create the WLAN.
Fill in the blank: The interface that will carry the WLAN traffic must be _______.
selected.
What does the Security tab in the WLC configuration allow you to do?
Access all the available options for securing the LAN.
What does each physical port on a WLC support?
Many APs and WLANs.
What protocol do controller-based APs use to communicate with a WLAN controller?
Lightweight Access Point Protocol (LWAPP).
What feature allows certain traffic types to be prioritized over others in wireless networks?
Quality of Service (QoS).
What is the role of a RADIUS server in a WLAN configuration?
Provide authentication, authorization, and accounting (AAA) services.
What should be done immediately after logging into a wireless router?
Change the default administrative password.
What is the purpose of Network Address Translation (NAT) in a wireless router?
Translate a private IPv4 address to a public address for communication.
What is the main advantage of using a wireless mesh network?
Extend wireless coverage beyond the range of a single router.
What is the default username commonly used to access a wireless router’s configuration GUI?
admin.
What is the function of SNMP in wireless network management?
Manage network devices and forward log messages.
What is the first step in configuring a WPA2 Enterprise WLAN on the WLC?
Configure RADIUS server information.
What happens when you click ‘New…’ under RADIUS settings?
You can add a new RADIUS server.
What is the significance of having VLANs for WLANs on the WLC?
Each WLAN needs its own virtual interface.
To troubleshoot WLAN issues, what should be done when the network is slow?
- Upgrade your wireless clients
- Split the traffic between frequency bands
Fill in the blank: The AP connected to the WLC is often referred to as a _______.
lightweight AP.
What feature allows specific TCP and UDP ports to be opened on a wireless router?
Port forwarding.
True or False: The wireless router configuration can typically be accessed through a command-line interface.
False
What is the typical use case for a small office and home wireless router?
Provide WLAN security, DHCP services, and NAT.
What is the significance of the ‘Network Summary’ page on the WLC?
Provides an overview of configured wireless networks, APs, and active clients.
What should you do to ensure there are no overlapping channels in a WLAN configuration?
Configure the channel carefully.
What is the benefit of splitting wireless traffic between the 2.4 GHz and 5 GHz bands?
It helps manage traffic by using two separate wireless networks.
What type of traffic is the 2.4 GHz band suitable for?
Basic Internet traffic that is not time-sensitive.
Why is the 5 GHz band ideal for streaming multimedia?
It is much less crowded and has more channels, reducing interference.
What is the first step in the WLAN troubleshooting process?
Identify the Problem.
What command can be used to confirm the network configuration on a PC?
ipconfig
What should you check if a wireless client is not connecting?
Confirm power to all devices and inspect links for bad connectors.
Fill in the blank: The process of analyzing and resolving network issues is called _______.
troubleshooting
What should be done after determining the cause of a WLAN issue?
Establish a Plan of Action to Resolve the Problem and Implement the Solution.
What is the purpose of a RADIUS server in WLAN user authentication?
To provide authentication, accounting, and auditing (AAA) services.
True or False: Dual-band routers typically use different network names for the 2.4 GHz and 5 GHz bands.
False
What should be done to improve the range of a wireless network?
Ensure the router or AP location is free of obstructions.
What is the role of SNMP in WLAN management?
To monitor the network and forward log messages to the SNMP server.
What does QoS stand for and what is its purpose?
Quality of Service; it prioritizes certain traffic types over others.
What is the default key management protocol for WPA2 Enterprise WLAN?
802.1X
List the steps to configure a new interface on a WLC.
- Create a new interface
- Configure VLAN name and ID
- Configure port and interface address
- Configure DHCP server address
- Apply and Confirm
- Verify Interfaces
What should be done periodically to maintain wireless routers and APs?
Verify and upgrade firmware.
What is the first action you should take when setting up a wireless router?
Change the username and password.
Fill in the blank: Lightweight APs (LAPs) communicate with a WLAN controller using _______.
Lightweight Access Point Protocol (LWAPP)
What can be used to extend the range of a wireless network beyond approximately 45 meters indoors?
Add wireless access points.
What is the purpose of the DHCP scope in WLAN configuration?
To allocate IP addresses to devices on the network.
What should you do if the wireless connection is performing poorly?
Check the channel settings and for interference.
What is the significance of documenting findings in the troubleshooting process?
It is important for future reference.
What is NAT and what does it do?
Network Address Translation; it converts private IPv4 addresses to internet-routable IPv4 addresses.
