HPE7-A02 Aruba Certified Network Security Professional Exam Practice Test

Answer : A

Applying a time range to a firewall rule on an AOS device fulfills the use case of enforcing the rule only during the specified time range. This allows administrators to control when specific firewall rules are active, which can be useful for implementing policies that only need to be in effect during certain hours, such as blocking or allowing access to specific resources outside of business hours.

1. Time-Based Enforcement: The firewall rule will be active only during the specified time range, ensuring that the rule's policies are enforced only when needed.

2. Use Case: This feature is useful for scenarios like limiting access to certain applications or websites during working hours, or enabling enhanced security measures during off-hours.

3. Flexibility: Provides flexibility in security policy management by allowing dynamic adjustment of rules based on time schedules.

Answer : B

One use case that companies can fulfill using HPE Aruba Networking ClearPass Policy Manager's (CPPM's) Device Profiler is leveraging artificial intelligence to more accurately identify Internet of Things (IoT) devices. ClearPass Device Profiler uses AI and machine learning to analyze network traffic and device behavior, providing detailed and accurate identification of IoT devices on the network. This helps in managing and securing diverse and numerous IoT devices by ensuring they are correctly profiled and assigned appropriate access policies.

Answer : A

An HPE Aruba Networking AP's Device (TPM) certificate is signed by an HPE Aruba Networking Certificate Authority (CA) and is trusted by many HPE Aruba Networking solutions. This certificate is used for secure communications and device authentication within the Aruba network ecosystem.

1. CA-Signed Certificate: The Device (TPM) certificate is signed by a trusted Aruba CA, ensuring its authenticity and integrity.

2. Trust Across Solutions: Because it is signed by an Aruba CA, it is recognized and trusted by various Aruba solutions, facilitating secure interactions and communications.

3. Security: Using a CA-signed certificate enhances the security of the network by preventing unauthorized access and ensuring that communications are secure.

Answer : C

The 'Detect Valid SSID Misuse' event in Aruba's Wireless Intrusion Detection System (WIDS) indicates that a valid SSID, associated with your network, is being broadcast from an unauthorized source. This scenario often signals a potential rogue access point attempting to deceive clients into connecting to it (e.g., for credential harvesting or man-in-the-middle attacks).

1. Explanation of Each Option

A . Clients are failing to authenticate to corporate SSIDs. You should first check for misconfigured authentication settings and then investigate a possible threat:

Incorrect:

This event is not related to authentication failures by legitimate clients.

Misconfigured authentication settings would lead to events like 'authentication failures' or 'radius issues,' not 'valid SSID misuse.'

B . Admins have likely misconfigured SSID security settings on some of the company's APs. You should have them check those settings:

Incorrect:

This event refers to an external device broadcasting your SSID, not misconfiguration on the company's authorized APs.

WIDS differentiates between valid corporate APs and rogue APs.

C . Hackers are likely trying to pose as authorized APs. You should use the detecting radio information and immediately track down the device that triggered the event:

Correct:

This is the most likely cause of the 'detect valid SSID misuse' event. A rogue AP broadcasting a corporate SSID could lure clients into connecting to it, exposing sensitive credentials or traffic.

Immediate action includes:

Using the radio information from the event logs to identify the rogue AP's location.

Physically locating and removing the rogue device.

Strengthening WIPS/WIDS policies to prevent further misuse.

D . This event might be a threat but is almost always a false positive. You should wait to see the event over several days before following up on it:

Incorrect:

While false positives are possible, 'valid SSID misuse' is a critical security event that should not be ignored.

Delaying action increases the risk of successful attacks against your network.

2. Recommended Steps to Address the Event

Review Event Logs:

Gather details about the rogue AP, such as SSID, MAC address, channel, and signal strength.

Locate the Rogue Device:

Use the detecting AP's radio information and signal strength to triangulate the rogue AP's physical location.

Respond to the Threat:

Remove or disable the rogue device.

Notify the security team for further investigation.

Prevent Future Misuse:

Strengthen security policies, such as enabling client whitelists or enhancing WIPS protection.

Reference

Aruba WIDS/WIPS Configuration and Best Practices Guide.

Aruba Central Security Event Analysis Documentation.

Wireless Threat Management Using Aruba Networks.

Answer : D

Implementing user-based tunneling (UBT) on AOS-CX switches is beneficial for applying enhanced security features such as deep packet inspection (DPI) to wired traffic. UBT allows the traffic from specific users or devices to be tunneled to a central controller or security appliance where advanced security policies, including DPI, can be applied. This approach ensures that even wired traffic benefits from the same level of security and inspection typically available for wireless traffic, thus enhancing overall network security.

Answer : A

A typical use case for using HPE Aruba Networking ClearPass Onboard is to provision unmanaged devices to succeed at certificate-based 802.1X authentication. ClearPass Onboard allows users to securely configure their personal devices with the necessary certificates and network settings to authenticate on the network using 802.1X, which enhances security and simplifies the onboarding process for unmanaged devices.

1. Certificate-Based Authentication: ClearPass Onboard simplifies the process of issuing and installing certificates on unmanaged devices, ensuring they can authenticate securely using 802.1X.

2. User-Friendly Onboarding: The Onboard process is user-friendly, guiding users through the steps needed to configure their devices for network access.

3. Enhanced Security: By using certificates for authentication, the solution provides a higher level of security compared to traditional username/password methods.

Answer : C

When using OpenSSL to obtain a certificate signed by a Certification Authority (CA), you should submit the Certificate Signing Request (CSR) file, which is file1.pem, to the CA. The CSR contains the information about the entity requesting the certificate and the public key, but not the private key, which is in file2.pem. The CA uses the information in the CSR to create and sign the certificate.

1. CSR Submission: The CSR (file1.pem) includes the public key and the entity information required by the CA to issue a certificate.

2. Private Key Security: The private key (file2.pem) should never be sent to the CA or shared; it remains securely stored on the requestor's server.

3. Certificate Issuance: After the CA signs the CSR, the resulting certificate can be used with the private key to establish secure communications.