Free Aruba Certified Network Security Expert Written Exam HPE6-A84 Exam Practice Test

A customer requires a secure solution for connecting remote users to the corporate main site. You are designing a client-to-site virtual private network (VPN) based on Aruba VIA and Aruba Mobility Controllers acting as VPN Concentrators (VPNCs). Remote users will first use the VIA client to contact the VPNCs and obtain connection settings.The users should only be allowed to receive the settings if they are the customer's “RemoteEmployees” AD group. After receiving the settings, the VIA clients will automatically establish VPN connections, authenticating to CPPM with certificates.What should you do to help ensure that only authorized users obtain VIA connection settings?

• Set up the VPNCs' VIA web authentication profile to use CPPM as the authentication server; set up a service on CPPM that uses AD as the authentication source.
• Set up the VPNCs' VIA web authentication profile to use an AD domain controller as the LDAP server.
• Set up the VPNCs' VIA connection profile to use two authentication profiles, one RADIUS profile to CPPM and one LDAP profile to AD.
• Set up the VPNCs' VIA connection profile to use one authentication profile, which is set to the AD domain controller's hostname.

Refer to the scenario.# Introduction to the customerYou 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 C

• 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.
• țaa ød
• intca.acnsxtest. com
• 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
• The customer needs a secure way for users to enroll their new wireless clients in Intune. You are recommending a new WLAN that will provide the users with limited access for the enrollment.
• You have set up captive portal for clients on this WLAN to a web page with instructions for enrolling devices. You will need to add several hostnames to the captive portal allowlist manually.
• What is one of those hostnames?
• The hostname used by ClearPass Policy ManaGer's RADIUS services
• The ClearPass Onboard hostname referenced in an Onboard provisioninG profile
• The ClearPass Onboard hostname referenced in Intune SCEP profiles
• The hostname used by the on-prem domain controllers

You are designing an Aruba ClearPass Policy Manager (CPPM) solution for a customer. You learn that the customer has a Palo Alto firewall that filters traffic between clients in the campus and the data center.Which integration can you suggest?

• Sending Syslogs from the firewall to CPPM to signal CPPM to change the authentication status for misbehaving clients
• Importing clients' MAC addresses to configure known clients for MAC authentication more quickly
• Establishing a double layer of authentication at both the campus edge and the data center DMZ
• Importing the firewall's rules to program downloadable user roles for AOS-CX switches more quickly

You are configuring gateway IDS/IPS settings in Aruba Central. For which reason would you set the Fail Strategy to Bypass?

• To permit traffic if the IPS engine falls to inspect It
• To enable the gateway to honor the allowlist settings configured in IDS/IPS policies
• To tell gateways to stop enforcing IDS/IPS policies if they lose connectivity to the Internet
• To avoid wasting IPS engine resources on filtering traffic for unauthenticated clients

Refer to the scenario.A customer has an AOS10 architecture that is managed by Aruba Central. Aruba infrastructure devices authenticate clients to an Aruba ClearPass cluster.In Aruba Central, you are examining network traffic flows on a wireless IoT device that is categorized as “Raspberry Pi” clients. You see SSH traffic. You then check several more wireless IoT clients and see that they are sending SSH also.You want a fast way to find a list of all the IoT clients that have used SSH. What step can you take?

• Create and apply a Central client profile tag that selects the SSH application and the clients' category.
• Run a search for SSH traffic and loT client IDs in Aruba ClearPass Policy Manager's (CPPM's) accounting information.
• Use Central's Live Events monitoring tool to detect which clients meet the desired criteria.
• Use Central's Gateway IDS/IPS Security Dashboard to search for SSH events and sources.

Which element helps to lay the foundation for solid network security forensics?

• Enable BPDU protection and loop protection on edqe switch ports
• Enabling debug-level information for network infrastructure device logs
• Implementing 802.1X authentication on switch ports that connect to APs
• Ensuring that all network devices use a correct, consistent clock

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 a customer define an NAE script for AOS-CX switches. The script will monitor statistics from a RADIUS server defined on the switch. You want to future proof the script by enabling admins to select a different hostname or IP address for the monitored RADIUS server when they create an agent from the script.What should you recommend?

• Use this variable, %{radius-ipV when defining the monitor URI in the NAE agent script.
• Define a parameter for the RADIUS server; reference that parameter instead of the server name/ip when defining the monitor URI.
• Use a callback action to collect the name of any RADIUS servers defined on the switch at the time the agent is created.
• Make the script editable so that admins can edit it on demand when they are creating scripts.

Refer to the scenario.# Introduction to the customerYou 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 C

• 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.
• țaa ød
• intca.acnsxtest. com
• 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 have started to create a CA to meet the customer’s requirements for issuing certificates to mobile clients, as shown in the exhibit below.
• What change will help to meet those requirements and the requirements for authenticating clients?
• Change the EST authentication method to use an external validator.
• Change the EST Digest Algorithm to SHA-512.
• Recreate the CA as a registration authority under Azure AD.
• Specify an OCSP responder, setting the hostname to localhost.

What is a common characteristic of a beacon between a compromised device and a command and control server?

• Use of IPv6 addressing instead of IPv4 addressing
• Lack of encryption
• Use of less common protocols such as SNAP
• Periodic transmission of small, identically sized packets

The customer needs a way for users to enroll new wired clients in Intune. The clients should have limited access that only lets them enroll and receive certificates. You plan to set up these rights in an AOS-CX role named “provision.”The customer’s security team dictates that you must limit these clients’ Internet access to only the necessary sites. Your switch software supports IPv4 and IPv6 addresses for the rules applied in the “provision” role.What should you recommend?

• Configuring the rules for the “provision” role with IPv6 addresses, which tend to be more stable
• Enabling tunneling to the MCs on the “provision” role and then setting up the privileges on the MCs
• Configuring the “provision” role as a downloadable user role (DUR) in CPPM
• Assigning the “provision” role to a VLAN and then setting up the rules within a Layer 2 access control list (ACL)