5.10 WLAN within the GUI Flashcards
Configure and verify WLAN within the GUI using WPA2 PSK. (21 cards)
What does WPA2 PSK stand for in wireless networking?
Wi-Fi Protected Access 2 with Pre-Shared Key
WPA2 PSK is a security protocol where the pre-shared key (passphrase) is used for authentication and encryption in wireless networks.
Define:
Pre-Shared Key (PSK)
A shared password for network authentication and encryption.
The PSK ensures secure communication between devices and the router in WPA2 PSK networks.
Why is WPA2 PSK preferred over WPA?
It uses AES encryption, which is stronger than WPA’s TKIP.
AES encryption in WPA2 offers better protection against vulnerabilities found in WPA.
Why is it important to use a complex passphrase for WPA2 PSK?
It improves security by making it harder to guess.
A complex passphrase with a mix of characters and numbers increases resistance to brute-force attacks.
Describe the impact of weak WPA2 PSK passphrases on security.
They are easier to crack, compromising network security.
Using simple or default passphrases leaves the network vulnerable to unauthorized access.
What are the steps to configure WPA2 PSK in the router’s GUI?
- Access the router’s GUI.
- Navigate to the WLANs section.
- Create a new WLAN profile.
- Set the security policy to WPA2 with AES encryption.
- Enter the pre-shared key (PSK).
- Apply the changes.
These steps are typical in most router interfaces for configuring WPA2 PSK.
What is the default setting for WPA2 on most home routers?
WPA2-PSK
Most routers come preconfigured with WPA2-PSK to provide strong security right out of the box.
What are common mistakes when setting up WPA2 PSK?
- Using weak passphrases.
- Failing to update firmware.
- Using outdated security protocols.
- Not changing the default SSID.
These mistakes can leave networks vulnerable and compromise security.
True or False:
WPA2 PSK is more secure than WEP.
True
WPA2 PSK is far more secure than WEP, which uses outdated encryption that is easy to crack.
Fill in the blank:
The process to configure WPA2 PSK typically involves selecting a ______ ______ and entering a passphrase.
security protocol
In the router’s settings, WPA2-PSK is chosen as the security protocol, and a passphrase is required for encryption.
What happens if a device enters the wrong PSK when connecting?
The device will fail to authenticate and cannot connect.
Only devices with the correct PSK can connect to a WPA2 PSK-enabled network.
True or False:
WPA2 PSK encryption requires a RADIUS server for authentication.
False
WPA2 PSK uses a shared passphrase, not an RADIUS server, for authentication.
How do you verify the WPA2 PSK configuration in the router’s GUI?
- Log into the router’s GUI.
- Navigate to the WLANs section.
- Verify that the desired WLAN is enabled with WPA2 security and the correct PSK.
The router’s GUI shows the current security configuration, allowing users to confirm the WPA2 PSK settings.
List potential issues when configuring WPA2 PSK.
- Incorrect passphrase
- Firmware compatibility issues
- Devices not supporting WPA2
- Misconfigured settings
These issues can prevent devices from connecting or reduce the network’s security.
Why is WPA2 PSK less suitable for large businesses than WPA2 Enterprise?
It lacks centralized authentication, which is needed for large networks.
WPA2 Enterprise uses RADIUS and 802.1X for individual user authentication, providing better security control for larger environments.
True or False:
WPA2 PSK can be used with both 2.4 GHz and 5 GHz bands.
True
WPA2 PSK can secure both 2.4 GHz and 5 GHz bands in dual-band routers.
Fill in the blank:
WPA2 PSK uses ______ encryption to secure data between devices.
AES
AES encryption is the standard used in WPA2 to secure wireless data from interception and unauthorized access.
What is the default SSID setting on most consumer routers when using WPA2 PSK?
A generic name (e.g., “linksys” or “NETGEAR”).
The SSID can be changed to a custom name to improve network security by making it less recognizable.
Why is it important to hide the SSID when configuring a WLAN?
To prevent the network from being visible to unauthorized users.
While not a high-level security measure, hiding the SSID can reduce the risk of detection by attackers.
What are the benefits of using WPA2 PSK for small networks?
- Simple to set up.
- Strong AES encryption.
- No need for RADIUS.
- Cost-effective.
WPA2 PSK is an ideal solution for small businesses and home networks due to its simplicity and security.
True or False:
WPA2 PSK can be used for both home and enterprise networks.
False
WPA2 PSK is designed for home and small office networks, while WPA2 Enterprise is better suited for large businesses with centralized user authentication.
