Question 16

A company has Aruba gateways and wants to start implementing gateway IDS/IPS. The customer has selected Block for the Fail Strategy.
What might you recommend to help minimize unexpected outages caused by using this particular fall strategy?
  • Question 17

    Refer to the scenario.
    A customer has asked you to review their AOS-CX switches for potential vulnerabilities. The configuration for these switches is shown below:

    What is one immediate remediation that you should recommend?
  • Question 18

    Refer to the scenario.
    # Introduction to the customer
    You are helping a company add Aruba ClearPass to their network, which uses Aruba network infrastructure devices.
    The company currently has a Windows domain and Windows CA. The Window CA issues certificates to domain computers, domain users, and servers such as domain controllers. An example of a certificate issued by the Windows CA is shown here.


    The company is in the process of adding Microsoft Endpoint Manager (Intune) to manage its mobile clients.
    The customer is maintaining the on-prem AD for now and uses Azure AD Connect to sync with Azure AD.
    # Requirements for issuing certificates to mobile clients
    The company wants to use ClearPass Onboard to deploy certificates automatically to mobile clients enrolled in Intune. During this process, Onboard should communicate with Azure AD to validate the clients. High availability should also be provided for this scenario; in other words, clients should be able to get certificates from Subscriber 2 if Subscriber 1 is down.
    The Intune admins intend to create certificate profiles that include a UPN SAN with the UPN of the user who enrolled the device.
    # Requirements for authenticating clients
    The customer requires all types of clients to connect and authenticate on the same corporate SSID.
    The company wants CPPM to use these authentication methods:
    EAP-TLS to authenticate users on mobile clients registered in Intune
    TEAR, with EAP-TLS as the inner method to authenticate Windows domain computers and the users on them To succeed, EAP-TLS (standalone or as a TEAP method) clients must meet these requirements:
    Their certificate is valid and is not revoked, as validated by OCSP
    The client's username matches an account in AD
    # Requirements for assigning clients to roles
    After authentication, the customer wants the CPPM to assign clients to ClearPass roles based on the following rules:
    Clients with certificates issued by Onboard are assigned the "mobile-onboarded" role Clients that have passed TEAP Method 1 are assigned the "domain-computer" role Clients in the AD group "Medical" are assigned the "medical-staff" role Clients in the AD group "Reception" are assigned to the "reception-staff" role The customer requires CPPM to assign authenticated clients to AOS firewall roles as follows:
    Assign medical staff on mobile-onboarded clients to the "medical-mobile" firewall role Assign other mobile-onboarded clients to the "mobile-other" firewall role Assign medical staff on domain computers to the "medical-domain" firewall role All reception staff on domain computers to the "reception-domain" firewall role All domain computers with no valid user logged in to the "computer-only" firewall role Deny other clients access
    # Other requirements
    Communications between ClearPass servers and on-prem AD domain controllers must be encrypted.
    # Network topology
    For the network infrastructure, this customer has Aruba APs and Aruba gateways, which are managed by Central. APs use tunneled WLANs, which tunnel traffic to the gateway cluster. The customer also has AOS-CX switches that are not managed by Central at this point.

    # ClearPass cluster IP addressing and hostnames
    A customer's ClearPass cluster has these IP addresses:
    Publisher = 10.47.47.5
    Subscriber 1 = 10.47.47.6
    Subscriber 2 = 10.47.47.7
    Virtual IP with Subscriber 1 and Subscriber 2 = 10.47.47.8
    The customer's DNS server has these entries
    cp.acnsxtest.com = 10.47.47.5
    cps1.acnsxtest.com = 10.47.47.6
    cps2.acnsxtest.com = 10.47.47.7
    radius.acnsxtest.com = 10.47.47.8
    onboard.acnsxtest.com = 10.47.47.8
    You cannot see flow attributes for wireless clients.
    What should you check?
  • Question 19

    Refer to the exhibit.

    Aruba ClearPass Policy Manager (CPPM) is using the settings shown in the exhibit. You reference the tag shown in the exhibit in enforcement policies related to NASes of several types, including Aruba APs, Aruba gateways, and AOS-CX switches.
    What should you do to ensure that clients are reclassified and receive the correct treatment based on the tag?
  • Question 20

    Refer to the scenario.
    An organization wants the AOS-CX switch to trigger an alert if its RADIUS server (cp.acnsxtest.local) rejects an unusual number of client authentication requests per hour. After some discussions with other Aruba admins, you are still not sure how many rejections are usual or unusual. You expect that the value could be different on each switch.
    You are helping the developer understand how to develop an NAE script for this use case.
    You are helping the developer find the right URI for the monitor.
    Refer to the exhibit.

    You have used the REST API reference interface to submit a test call. The results are shown in the exhibit.
    Which URI should you give to the developer?