Operating System Security Levels

What is the primary benefit of using a wired LAN in terms of data reception?

It provides a higher speed of data transmission
It limits reception of data to stations connected to the LAN (correct)
It allows for more devices to be connected
It is more cost-effective

How are security levels assigned to subjects in a secure operating system?

Based on the user's role in the organization
Based on the user's password/ID and terminal access (correct)
Based on the type of data being accessed
Based on the type of computer being used

What happens when the Trojan horse program attempts to store the sensitive character string in a public file?

The attempt is denied due to the security policy (correct)
The attempt is denied due to the access control list
The program is terminated by the operating system
The attempt is allowed by the reference monitor

What is the primary weakness of the WEP algorithm?

It is not secure for wireless communication (A) Signup and view all the answers

What is the primary purpose of the 802.11i task group?

To address the WLAN security issues (C) Signup and view all the answers

What is the relationship between the security levels 'sensitive' and 'public'?

Sensitive is higher than public (B) Signup and view all the answers

What is the primary purpose of the authentication phase between the STA and AS?

To prove their identities to each other (A) Signup and view all the answers

What happens to non-authentication traffic between the STA and AS during the authentication phase?

It is blocked by the AP (A) Signup and view all the answers

Where does secure data transfer occur?

Between the STA and the AP (C) Signup and view all the answers

What is the purpose of the connection termination phase?

To turn down the secure connection and restore the original state (D) Signup and view all the answers

What is the first exchange in the discovery phase?

Network and security capability discovery (A) Signup and view all the answers

What is the role of the AP in the authentication transaction?

To forward traffic between the STA and AS (C) Signup and view all the answers

What is the purpose of the Wi-Fi Alliance's WPA standard?

To accelerate the introduction of strong security into WLANs (A) Signup and view all the answers

What is the final form of the 802.11i standard referred to as?

Robust Security Network (RSN) (B) Signup and view all the answers

What is the purpose of the authentication function in the 802.11i RSN security specification?

To provide mutual authentication and generate temporary keys (B) Signup and view all the answers

What is the purpose of the access control function in the 802.11i RSN security specification?

To enforce the use of the authentication function and facilitate key exchange (C) Signup and view all the answers

What is the purpose of the privacy with message integrity function in the 802.11i RSN security specification?

To encrypt data and ensure it has not been altered (A) Signup and view all the answers

What is the first phase of operation in an IEEE 802.11i RSN?

Discovery (B) Signup and view all the answers

What is the primary purpose of the key management phase in IEEE 802.11i?

To generate and distribute cryptographic keys to STAs (B) Signup and view all the answers

What is the relationship between the master session key (MSK) and the pairwise master key (PMK)?

The PMK is derived from the MSK by truncation (if necessary) (D) Signup and view all the answers

What is the purpose of the pairwise transient key (PTK)?

To be used for communication between an STA and AP after they have been mutually authenticated (B) Signup and view all the answers

What is the primary advantage of TKIP over older wireless LAN security approaches?

Software changes are sufficient for implementation (D) Signup and view all the answers

What is the alternative to the master session key (MSK) in IEEE 802.11i?

Pre-shared key (PSK) (B) Signup and view all the answers

What algorithm is used to generate the MIC in TKIP?

Michael (A) Signup and view all the answers

What are the two schemes defined in IEEE 802.11i for protecting data transmitted in 802.11 MPDUs?

Temporal Key Integrity Protocol (TKIP) and Counter Mode-CBC MAC Protocol (CCMP) (D) Signup and view all the answers

What is the purpose of the authentication phase in IEEE 802.11i?

To generate the master session key (MSK) (B) Signup and view all the answers

What is the primary difference between TKIP and CCMP?

CCMP requires hardware upgrades, while TKIP requires software changes (B) Signup and view all the answers

What service does CCMP provide, in addition to message integrity?

Data confidentiality (D) Signup and view all the answers

Which of the following is not a method for securing a WLAN?

WEB (B) Signup and view all the answers