CN chapter 5 - Additional questions

What is the main purpose of authentication in a wireless LAN?

• To encrypt data

• To ensure only authorized devices can access the network

• To increase network speed

• To broadcast the SSID

Which of the following authentication methods provides the least security?

• Open Authentication

• Shared Key Authentication

• WPA2 Authentication

• EAP Authentication

In Shared Key Authentication, what is required for a client to successfully authenticate with an access point?

• Knowledge of the SSID

• A shared secret key

• A valid MAC address

• A public key

What does the term "eavesdropping" refer to in network security?

• A) Altering data in transit

• B) Monitoring network traffic without authorization

• C) Authenticating a user

• D) Encrypting data packets

Which encryption algorithm is used in WEP?

• AES

• RC4

What is a significant limitation of WEP?

• It uses asymmetric encryption.

• It relies on a single shared key.

• It encrypts data using AES.

• It provides two-sided authentication.

What does WPA utilize to improve security over WEP?

• Temporal Key Integrity Protocol (TKIP)

• Rivest Cipher 4 (RC4)

• Advanced Encryption Standard (AES)

• Extensible Authentication Protocol (EAP)

Which of the following is a feature of WPA2?

• Uses TKIP for encryption

• Only supports Open Authentication

• Uses CCMP based on AES

• No authentication required

What does MAC address filtering do in a wireless network?

• Encrypts data packets

• Allows only specific devices to connect

• Changes the SSID periodically

• Monitors network traffic

In the context of encryption, what is "plain text"?

• Encrypted data

• Readable data before encryption

• Data that has been modified

• Data in transit