Wi-Fi Protected Access (WPA)

What is the purpose of WPA in Wi-Fi communications?

How does WPA differ from WEP in Wi-Fi security?

Which encryption scheme is designed to be replaced by WPA in Wi-Fi communications?

What cipher does WPA use for encryption in Wi-Fi communications?

Which protocol does WPA utilize to address vulnerabilities in the older WEP protection scheme?

What security enhancement does WPA provide over the older WEP protection scheme in Wi-Fi communications?

What is the main vulnerability of the WEP encryption mechanism?

Which element does WEP use to secure its preshared key?

What is a notable drawback of WEP in wireless data security?

What type of networks can still use the pre-shared key method under WPA2?

Which cipher is used by WPA2 for encryption?

What security standard was completed before WPA2 replaced the original WPA?

What is the main function of time-division multiplexing?

In which network is analog circuit switching commonly used?

Where is time-division multiplexing technology commonly used?

WPA in Wi-Fi Communications

WPA (Wi-Fi Protected Access) is a security protocol designed to secure Wi-Fi communications.
WPA differs from WEP (Wired Equivalent Privacy) in Wi-Fi security as it provides stronger encryption and better protection against hacking.

WPA vs WEP

WPA is designed to replace WEP in Wi-Fi communications.
WPA uses the TKIP (Temporal Key Integrity Protocol) cipher for encryption, whereas WEP uses the RC4 cipher.
WPA utilizes the 802.1X protocol to address vulnerabilities in the older WEP protection scheme.

WPA Security Enhancements

WPA provides a security enhancement over WEP by using a more secure encryption method and a more robust authentication process.
The main vulnerability of WEP encryption is its weak encryption algorithm and key management.

WEP Limitations

WEP uses a pre-shared key to secure its encryption, which is a notable drawback in wireless data security.
WEP's pre-shared key method is vulnerable to hacking and can be easily compromised.

WPA2 and Pre-Shared Key

WPA2 still allows the use of pre-shared key method for home and small networks.
WPA2 uses the AES (Advanced Encryption Standard) cipher for encryption.

WPA2 and Security Standards

WPA2 was completed as a security standard before the IEEE 802.11i standard was published.

Time-Division Multiplexing

Time-division multiplexing is a technology that allows multiple signals to share the same communication channel by dividing the channel into time slots.
The main function of time-division multiplexing is to enable multiple devices to share the same bandwidth.

Network Technologies

Analog circuit switching is commonly used in telephone networks.
Time-division multiplexing technology is commonly used in digital telephone networks.

Test your knowledge about Wi-Fi Protected Access (WPA) which is an improved encryption scheme designed to enhance the security of Wi-Fi communications, replacing the WEP protocol.