WEP Security and WLAN Standards Quiz

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Questions and Answers

What is a significant limitation of MAC address filtering in network security?

It allows guest users to easily join the network.
It cannot accommodate a large number of MAC addresses. (correct)
It requires continuous updating of device addresses.
It relies on encryption for protecting data.

What does the initialization vector (IV) in WEP contribute to the encryption process?

The IV is combined with the WEP key to create a keystream. (correct)
The IV is a random vector that enhances key strength.
The IV prevents attempts to breach network security.
The IV can increase the length of the key.

How often do the IVs in WEP start to repeat, posing a security risk?

In less than 24 hours
In less than 7 hours (correct)
In less than 1 hour
In less than 48 hours

What is a Collision in the context of WEP packet encryption?

When two packets are derived from the same IV (B) Signup and view all the answers

What cardinal rule of cryptography does WEP violate?

Patterns must not be easily detected. (A) Signup and view all the answers

What is a keystream attack in WEP encryption?

A method to analyze two packets derived from the same IV. (A) Signup and view all the answers

Why is WEP considered to have weak security?

It produces an easily detectable pattern. (B) Signup and view all the answers

What is the primary function of the IEEE 802.11 standard for WLANs?

To provide a technical standard for wireless local area networks (B) Signup and view all the answers

What is a significant vulnerability of open system authentication?

It relies solely on the SSID for authentication (C) Signup and view all the answers

What is the main purpose of MAC address filtering within wireless networks?

To restrict unauthenticated devices from connecting (D) Signup and view all the answers

Which key size is the minimum required for IEEE 802.11 WEP shared secret keys?

64 bits (B) Signup and view all the answers

What flaw exists when the SSID is configured not to be beaconed in a wireless network?

It can lead to difficulties in roaming for devices (D) Signup and view all the answers

What process typically exposes the SSID to potential attackers?

Passive scanning for beacon frames (A) Signup and view all the answers

What aspect does the IEEE 802.11 standard not explicitly define?

How to implement access control (A) Signup and view all the answers

What encryption method was introduced with the IEEE 802.11 standard to protect wireless traffic?

Wired Equivalent Privacy (WEP) (C) Signup and view all the answers

Which of the following describes MAC address filtering?

It allows only designated MAC addresses to connect (D) Signup and view all the answers

Which revision of the IEEE 802.11 standard was approved last?

IEEE 802.11n (B) Signup and view all the answers

What is one of the limitations of MAC address filtering in wireless security?

MAC addresses can be spoofed easily (A) Signup and view all the answers

What type of authentication is considered weak due to a singular authentication factor?

Open system authentication (A) Signup and view all the answers

Which feature is NOT part of the WEP encryption criteria?

Mandatory usage (A) Signup and view all the answers

What characteristic of WEP makes it relatively weak in terms of security?

Vulnerability to brute-force attacks (B) Signup and view all the answers

Flashcards

MAC Address Filtering

A security measure that restricts network access to devices with specific MAC addresses, allowing authorized devices to join the network while blocking others.

MAC Address Spoofing

A type of weakness in MAC address filtering where an attacker can observe the network traffic and identify the MAC addresses of authorized devices to gain unauthorized access.

Wired Equivalent Privacy (WEP)

A security protocol that encrypts data transmitted over wireless networks, using a 64-bit or 128-bit key.