Which endpoint classification capabilities do Aruba network infrastructure devices have on their own without ClearPass solutions?
Answer(s): B
Without the integration of Aruba ClearPass or other advanced network access control solutions, ArubaOS devices (controllers and Instant APs) are able to use DHCP fingerprinting to assign roles to clients. This method allows the devices to identify the type of client devices connecting to the network based on the DHCP requests they send. While this is a more basic form of endpoint classification compared to the capabilities provided by ClearPass, it still enables some level of access control based on device type. This functionality and its limitations are described in Aruba's product documentation for ArubaOS devices, highlighting the benefits of integrating a full-featured solution like ClearPass for more granular and powerful endpoint classification capabilities.
You have an Aruba solution with multiple Mobility Controllers (MCs) and campus APs. You want to deploy a WPA3-Enterprise WLAN and authenticate users to Aruba ClearPass Policy Manager (CPPM) with EAP-TLS.What is a guideline for ensuring a successful deployment?
Answer(s): D
For WPA3-Enterprise with EAP-TLS, it's crucial that clients have a trusted certificate installed for the authentication process. EAP-TLS relies on a mutual exchange of certificates for authentication. Deploying client certificates signed by a CA that CPPM trusts ensures that the ClearPass Policy Manager can verify the authenticity of the client certificates during the TLS handshake process. Trust in the root CA is typically required for the server side of the authentication process, not the client side, which is covered by the client's own certificate.
This practice is in line with EAP-TLS authentication mechanisms described in RFC 5216 - The EAP-TLS Authentication Protocol.
A company with 439 employees wants to deploy an open WLAN for guests. The company wants the experience to be as follows:* Guests select the WLAN and connect without having to enter a password.* Guests are redirected to a welcome web page and log in. The company also wants to provide encryption for the network for devices that are capable. Which security options should you implement for the WLAN?
Answer(s): C
Opportunistic Wireless Encryption (OWE) provides encrypted communications on open Wi-Fi networks, which addresses the company's desire to have encryption without requiring a password for guests. It can work in transition mode, which allows for the use of OWE by clients that support it, while still permitting legacy clients to connect without encryption. Combining this with a captive portal enables the desired welcome web page for guests to log in.
OWE is described in RFC 8110 - Opportunistic Wireless Encryption.
Which is a correct description of a Public Key Infrastructure (PKI)?
Public Key Infrastructure (PKI) relies on a trusted root Certification Authority (CA) to issue certificates. Devices and users must trust the root CA for the PKI to be effective. If a root CA certificate is not pre-installed or manually chosen to be trusted on a device, any certificates issued by that CA will not be inherently trusted by the device.
The concept and structure of PKI are detailed in various security literature, such as NIST Special Publication 800-32 - Introduction to Public Key Technology and the Federal PKI Infrastructure.
What is one of the policies that a company should define for digital forensics?
Answer(s): A
In the context of digital forensics, policy A is the most relevant. It defines which data should be logged, where logs should be forwarded for analysis or storage, and which logs should be archived for future forensic analysis or audit purposes. This ensures that evidence is preserved in a way that supports forensic activities.
Guidance on this is provided in the ISO/IEC 27037 standard - Guidelines for identification, collection, acquisition, and preservation of digital evidence.
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