HPE6-A84 Practice Online

Question 1

You are configuring gateway IDS/IPS settings in Aruba Central.

For which reason would you set the Fail Strategy to Bypass?

A : To permit traffic if the IPS engine falls to inspect It

B : To enable the gateway to honor the allowlist settings configured in IDS/IPS policies

C : To tell gateways to stop enforcing IDS/IPS policies if they lose connectivity to the Internet

D : To avoid wasting IPS engine resources on filtering traffic for unauthenticated clients

Answer: A

Question 2

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 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?

A : Change the EST authentication method to use an external validator.

B : Change the EST Digest Algorithm to SHA-512.

C : Recreate the CA as a registration authority under Azure AD.

D : Specify an OCSP responder, setting the hostname to localhost.

Answer: A

Question 3

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?

A : Change the RADIUS action to [Aruba Wireless – Terminate Session] which is supported by all the NASes in question.

B : Change the RADIUS action to [Aruba Wireless – Bounce Switch Port] which is supported by all the NASes in question.

C :

Enable profiling in each service using one of these enforcement profiles. Set the profiling action to the correct one for the NASes using that service.

D : Set the Tags Update Action to No Action. Then instead enable the RADIUS CoAs using enforcement profiles in the rules that match clients with the tag shown in the exhibit.

Answer: D

Question 4

Refer to the exhibit.

Which IP address should you record as a possibly compromised client?

A : 10.1.26.151

B : 10.1.7.100

C : 10.1.26.1

D : 10.254.1.21

Answer: A

Question 5

A company has Aruba gateways that are Implementing gateway IDS/IPS in IDS mode. The customer complains that admins are receiving too frequent of repeat email notifications for the same threat. The threat itself might be one that the admins should investigate, but the customer does not want the email notification to repeat as often.

Which setting should you adjust in Aruba Central?

A : Report scheduling settings

B : Alert duration and threshold settings

C : The IDS policy setting (strict, medium, or lenient)

D : The allowlist settings in the IDS policy

Answer: B

Name:	Aruba Certified Network Security Expert Written
Exam Code:	HPE6-A84
Certification:	HPE Aruba Certified
Vendor:	HP
Total Questions:	60
Last Updated:	Apr 24, 2024

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