2023年最新の有効なHPE6-A84リアル試験問題（更新された）100%問題集と練習試験合格させます
[更新されたのは2023年]HP HPE6-A84問題準備には無料サンプルのPDF
HPE6-A84試験は、セキュリティ技術に強いバックグラウンドとArubaネットワークセキュリティソリューションの経験があるネットワーク専門家を対象としています。試験は、ネットワーク設計、セキュアな認証と暗号化、侵入検知と防止、セキュリティポリシーと手順など、広範なトピックをカバーしています。合格者は、ネットワークセキュリティに深い理解を持ち、Arubaソリューションを使用してセキュアなネットワークを設計、実装、および管理できるようになります。
質問 # 15
Refer to the scenario.
A customer requires these rights for clients in the "medical-mobile" AOS firewall role on Aruba Mobility Controllers (MCs):
Permitted to r* eceive IP addresses with DHCP
* Permitted access to DNS services from 10.8.9.7 and no other server
* Permitted access to all subnets in the 10.1.0.0/16 range except denied access to 10.1.12.0/22
* Denied access to other 10.0.0.0/8 subnets
* Permitted access to the Internet
* Denied access to the WLAN for a period of time if they send any SSH traffic
* Denied access to the WLAN for a period of time if they send any Telnet traffic
* Denied access to all high-risk websites
External devices should not be permitted to initiate sessions with "medical-mobile" clients, only send return traffic.
The exhibits below show the configuration for the role.
There are multiple issues with this configuration. What is one change you must make to meet the scenario requirements? (In the options, rules in a policy are referenced from top to bottom. For example,
"medical-mobile" rule 1 is "ipv4 any any svc-dhcp permit," and rule 8 is "ipv4 any any any permit".)
- A. In the "medical-mobile" policy, move rules 2 and 3 between rules 7 and 8.
- B. In the "medical-mobile" policy, change the source in rule 8 to "user."
- C. In the "medical-mobile" policy, change the subnet mask in rule 3 to 255.255.248.0.
- D. Move the rule in the "apprf-medical-mobile-sacl" policy between rules 7 and 8 in the "medical-mobile" policy.
正解：C
解説：
Explanation
The subnet mask in rule 3 of the "medical-mobile" policy is currently 255.255.252.0, which means that the rule denies access to the 10.1.12.0/22 subnet as well as the adjacent 10.1.16.0/22 subnet 1. This is not consistent with the scenario requirements, which state that only the 10.1.12.0/22 subnet should be denied access, while the rest of the 10.1.0.0/16 range should be permitted access.
To fix this issue, the subnet mask in rule 3 should be changed to 255.255.248.0, which means that the rule only denies access to the 10.1.8.0/21 subnet, which includes the 10.1.12.0/22 subnet 1. This way, the rule matches the scenario requirements more precisely.
質問 # 16
Refer to the scenario.
A hospital has an AOS10 architecture that is managed by Aruba Central. The customer has deployed a pair of Aruba 9000 Series gateways with Security licenses at each clinic. The gateways implement IDS/IPS in IDS mode.
The Security Dashboard shows these several recent events with the same signature, as shown below:
Which step could give you valuable context about the incident?
- A. View the user-table on APs and record the threat sources' 802.11 settings.
- B. Find the Central client profile for the threat sources and note their category and family.
- C. View firewall sessions on the APs and record the threat sources' type and OS.
- D. View the RAPIDS Security Dashboard and see if the threat sources are listed as rogues.
正解：D
解説：
Explanation
The RAPIDS Security Dashboard is a feature of Aruba Central that provides a comprehensive view of the network security status, including IDS/IPS events, rogue APs, and wireless intrusion detection. By viewing the RAPIDS Security Dashboard, you can see if the threat sources are rogue APs that are spoofing legitimate DNS servers or clients. This can give you valuable context about the incident and help you identify the root cause of the attack1
質問 # 17
Refer to the scenario.
A customer requires these rights for clients in the "medical-mobile" AOS firewall role on Aruba Mobility Controllers (MCs):
Permitted to receive IP addresses with DHCP
Permitted access to DNS services from 10.8.9.7 and no other server
Permitted access to all subnets in the 10.1.0.0/16 range except denied access to 10.1.12.0/22 Denied access to other 10.0.0.0/8 subnets Permitted access to the Internet Denied access to the WLAN for a period of time if they send any SSH traffic Denied access to the WLAN for a period of time if they send any Telnet traffic Denied access to all high-risk websites External devices should not be permitted to initiate sessions with "medical-mobile" clients, only send return traffic.
The exhibits below show the configuration for the role.
There are multiple issues with the configuration.
What is one of the changes that you must make to the policies to meet the scenario requirements? (In the options, rules in a policy are referenced from top to bottom. For example, "medical-mobile" rule 1 is "ipv4 any any svc-dhcp permit," and rule 8 is "ipv4 any any any permit'.)
- A. In the "medical-mobile" policy, move rules 6 and 7 to the top of the list.
- B. In the "medical-mobile" policy, change the subnet mask in rule 3 to 255.255.248.0.
- C. In the "medical-mobile" policy, change the source in rule 1 to "user."
- D. Move the rule in the "apprf-medical-mobile-sacl" policy between rules 7 and 8 in the "medical-mobile" policy.
正解：B
質問 # 18
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. 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.
- B. Change the RADIUS action to [Aruba Wireless - Bounce Switch Port] which is supported by all the NASes in question.
- C. Change the RADIUS action to [Aruba Wireless -Terminate Session] which is supported by all the NASes in question.
- D. 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.
正解：D
解説：
Explanation
According to the ClearPass Policy Manager User Guide1, the tag shown in the exhibit is a Device Insight tag, which is used to classify and identify devices based on their behavior and characteristics. Device Insight tags can be used as conditions in enforcement policies to apply different actions or roles to devices based on their tags. However, in order to ensure that devices are reclassified and receive the correct treatment based on their tags, profiling must be enabled in each service that uses one of these enforcement profiles. Profiling is a feature that allows ClearPass to dynamically discover and profile devices on the network, and update their attributes and tags accordingly. Profiling also allows ClearPass to send RADIUS Change of Authorization (CoA) messages to the network access servers (NASes) that control the access of the devices, and instruct them to reauthenticate or terminate the sessions of the devices that have changed their tags. The profiling action must be set to the correct one for the NASes using that service, as different NASes may support different types of CoA messages. Therefore, option C is the correct answer.
質問 # 19
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 created a role mapping policy as shown in the exhibits below.
What is one change that you need to make to this policy?
- A. Change the default role to 'mobile-onboarded*
- B. Move rules 2 and 3 to the top of the list.
- C. In rule 1 change Subject-CN to Issuer-CN.
- D. Change the rules evaluation mechanism to first applicable.
正解：C
質問 # 20
Refer to the scenario.
A customer requires these rights for clients in the "medical-mobile" AOS firewall role on Aruba Mobility Controllers (MCs):
Permitted to receive IP addresses with DHCP
* Permitted access to DNS services from 10.8.9.7 and no other server
* Permitted access to all subnets in the 10.1.0.0/16 range except denied access to 10.1.12.0/22
* Denied access to other 10.0.0.0/8 subnets
* Permitted access to the Internet
* Denied access to the WLAN for a period of time if they send any SSH traffic
* Denied access to the WLAN for a period of time if they send any Telnet traffic
* Denied access to all high-risk websites
External devices should not be permitted to initiate sessions with "medical-mobile" clients, only send return traffic.
The exhibits below show the configuration for the role.
There are multiple issues with the configuration.
What is one of the changes that you must make to the policies to meet the scenario requirements? (In the options, rules in a policy are referenced from top to bottom. For example, "medical-mobile" rule 1 is "ipv4 any any svc-dhcp permit," and rule 8 is "ipv4 any any any permit'.)
- A. In the "medical-mobile" policy, move rules 6 and 7 to the top of the list.
- B. In the "medical-mobile" policy, change the source in rule 1 to "user."
- C. Move the rule in the "apprf-medical-mobile-sacl" policy between rules 7 and 8 in the "medical-mobile" policy.
- D. In the "medical-mobile" policy, change the subnet mask in rule 3 to 255.255.248.0.
正解：A
解説：
Explanation
Rules 6 and 7 in the "medical-mobile" policy are used to deny access to the WLAN for a period of time if the clients send any SSH or Telnet traffic, as required by the scenario. However, these rules are currently placed below rule 5, which permits access to the Internet for any traffic. This means that rule 5 will override rules 6 and 7, and the clients will not be denied access to the WLAN even if they send SSH or Telnet traffic.
To fix this issue, rules 6 and 7 should be moved to the top of the list, before rule 5. This way, rules 6 and 7 will take precedence over rule 5, and the clients will be denied access to the WLAN if they send SSH or Telnet traffic, as expected.
質問 # 21
Which element helps to lay the foundation for solid network security forensics?
- A. Implementing 802.1X authentication on switch ports that connect to APs
- B. Enabling debug-level information for network infrastructure device logs
- C. Enable BPDU protection and loop protection on edqe switch ports
- D. Ensuring that all network devices use a correct, consistent clock
正解：D
解説：
Explanation
This is because network forensics relies on the analysis of network traffic data, which is often time-stamped by the devices that generate or transmit it. Having a synchronized and accurate clock across all network devices helps to establish a reliable timeline of events and correlate different sources of evidence12
A: Enable BPDU protection and loop protection on edge switch ports is not related to network security forensics, but rather to preventing network loops and topology changes caused by rogue switches or bridges3
B: Enabling debug-level information for network infrastructure device logs might provide more details about the network activity, but it also consumes more resources and storage, and might not be relevant or useful for forensic analysis. Moreover, debug-level information might not be available for long-term retention or legal purposes4
C: Implementing 802.1X authentication on switch ports that connect to APs is a good security practice to prevent unauthorized access to the network, but it does not directly help with network security forensics. 802.1X authentication does not capture or record network traffic data, which is the main source of evidence for network forensics
質問 # 22
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?
- A. Gateway IDS/IPS is enabled on the Aruba gateways, and the gateways have been rebooted.
- B. Deep packet inspection is enabled on the role to which the Aruba APs assign the wireless clients.
- C. Firewall application visibility is enabled on the Aruba gateways, and the gateways have been rebooted.
- D. Deep packet inspection is enabled on the Aruba Aps, and the APs have been rebooted.
正解：B
質問 # 23
Refer to the scenario.
A customer is migrating from on-prem AD to Azure AD as its sole domain solution. The customer also manages both wired and wireless devices with Microsoft Endpoint Manager (Intune).
The customer wants to improve security for the network edge. You are helping the customer design a ClearPass deployment for this purpose. Aruba network devices will authenticate wireless and wired clients to an Aruba ClearPass Policy Manager (CPPM) cluster (which uses version 6.10).
The customer has several requirements for authentication. The clients should only pass EAP-TLS authentication if a query to Azure AD shows that they have accounts in Azure AD. To further refine the clients' privileges, ClearPass also should use information collected by Intune to make access control decisions.
You are planning to use Azure AD as the authentication source in 802.1X services.
What should you make sure that the customer understands is required?
- A. CPPM's RADIUS certificate was imported as trusted in the Azure AD directory
- B. Windows 365 subscriptions
- C. An app registration on Azure AD that references the CPPM's FQDN
- D. Azure AD Domain Services
正解：C
質問 # 24
Several AOS-CX switches are responding to SNMPv2 GET requests for the public community. The customer only permits SNMPv3. You have asked a network admin to fix this problem. The admin says, "I tried to remove the community, but the CLI output an error." What should you recommend to remediate the vulnerability and meet the customer's requirements?
- A. Adding an SNMP community with a long random name
- B. Enabling control plane policing to automatically drop SNMP GET requests
- C. Enabling SNMPv3, which implicitly disables SNMPv1/v2
- D. Setting the snmp-server settings to "snmpv3-only"
正解：D
質問 # 25
Refer to the scenario.
A customer has an Aruba ClearPass cluster. The customer has AOS-CX switches that implement 802.1X authentication to ClearPass Policy Manager (CPPM).
Switches are using local port-access policies.
The customer wants to start tunneling wired clients that pass user authentication only to an Aruba gateway cluster. The gateway cluster should assign these clients to the "eth-internet" role. The gateway should also handle assigning clients to their VLAN, which is VLAN 20.
The plan for the enforcement policy and profiles is shown below:
The gateway cluster has two gateways with these IP addresses:
* Gateway 1
o VLAN 4085 (system IP) = 10.20.4.21
o VLAN 20 (users) = 10.20.20.1
o VLAN 4094 (WAN) = 198.51.100.14
* Gateway 2
o VLAN 4085 (system IP) = 10.20.4.22
o VLAN 20 (users) = 10.20.20.2
o VLAN 4094 (WAN) = 198.51.100.12
* VRRP on VLAN 20 = 10.20.20.254
The customer requires high availability for the tunnels between the switches and the gateway cluster. If one gateway falls, the other gateway should take over its tunnels. Also, the switch should be able to discover the gateway cluster regardless of whether one of the gateways is in the cluster.
Assume that you have configured the correct UBT zone and port-access role settings. However, the solution is not working.
What else should you make sure to do?
- A. Assign sufficient VIA licenses to the gateways based on the number of wired clients that will connect.
- B. Change the port-access auth-mode mode to client-mode on any edge ports to which tunneled clients might connect.
- C. Assign VLAN 20 as the access VLAN on any edge ports to which tunneled clients might connect.
- D. Create a new VLAN on the AOS-CX switch and configure that VLAN as the UBT client VLAN.
正解：D
解説：
Explanation
The correct answer is B. Create a new VLAN on the AOS-CX switch and configure that VLAN as the UBT client VLAN.
User-based tunneling (UBT) is a feature that allows the AOS-CX switches to tunnel the traffic from wired clients to a mobility gateway cluster, where they can be assigned a role and a VLAN based on their authentication and authorization 1. To enable UBT, the switches need to have a UBT zone configured with the IP addresses of the gateways, and a UBT client VLAN configured with the ubt-client-vlan command 2.
The UBT client VLAN is a special VLAN that is used to encapsulate the traffic from the tunneled clients before sending it to the gateways. The UBT client VLAN must be different from any other VLANs used on the switch or the network, and it must not be assigned to any ports or interfaces on the switch 2. The UBT client VLAN is only used internally by the switch for UBT, and it is not visible to the clients or the gateways.
In this scenario, the customer wants to tunnel the clients that pass user authentication to the gateway cluster, where they will be assigned to VLAN 20. Therefore, the switch must have a UBT client VLAN configured that is different from VLAN 20 or any other VLANs on the network. For example, the switch can use VLAN
4000 as the UBT client VLAN, as shown in one of the web search results 3. The switch must also have a UBT zone configured with the system IP addresses of the gateways as the primary and backup controllers, as explained in question 3.
The other options are not correct or relevant for this issue:
Option A is not correct because assigning VLAN 20 as the access VLAN on any edge ports to which tunneled clients might connect would conflict with UBT. The access VLAN is the VLAN that is assigned to untagged traffic on a port, and it is used for local switching on the switch 4. If VLAN 20 is assigned as the access VLAN, then the traffic from the clients will not be tunneled to the gateways, but rather switched locally on VLAN 20. This would defeat the purpose of UBT and cause inconsistency in role and VLAN assignment.
Option C is not correct because VIA licenses are not required for UBT. VIA licenses are required for enabling VPN services on Aruba Mobility Controllers for remote access clients using Aruba Virtual Intranet Access (VIA) software . VIA licenses are not related to UBT or wired clients.
Option D is not correct because changing the port-access auth-mode mode to client-mode on any edge ports to which tunneled clients might connect would not affect UBT. The port-access auth-mode mode determines how a port handles authentication requests from multiple clients connected to a single port .
Client-mode is the default mode that allows only one client per port, while multi-client-mode allows multiple clients per port. The port-access auth-mode mode does not affect how UBT works or how traffic is tunneled from a port.
質問 # 26
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
The customer has now decided that it needs CPPM to assign certain mobile-onboarded devices to a
"nurse-call" AOS user role. These are mobile-onboarded devices that are communicating with IP address
10.1.18.12 using port 4343.
What are the prerequisites for fulfilling this requirement?
- A. Setting up traffic classes and role mapping rules within Central's global settings
- B. Creating server-based role assignment rules on gateways that apply roles to clients based on traffic destinations
- C. Creating a tag on Central to select the proper destination connection and integrating CPPM with Device Insight
- D. Creating server-based role assignment rules on APs that apply roles to clients based on traffic destinations
正解：B
質問 # 27
You are reviewing an endpoint entry in ClearPass Policy Manager (CPPM) Endpoints Repository.
What is a good sign that someone has been trying to gain unauthorized access to the network?
- A. The entry shows an Unknown status.
- B. The entry lacks a hostname or includes a hostname with long seemingly random characters.
- C. The entry shows a profile conflict of having a new profile of Computer for a profiled Printer.
- D. The entry shows multiple DHCP options under the fingerprints.
正解：C
質問 # 28
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 recommendation to make?
- A. Create a control plane ACL to limit the sources that can access the switch with SSH.
- B. Encrypt the certificate in the TA-profile.
- C. Use MDS instead of SHA1 for the NTP authentication key.
- D. Let the RADIUS server confiqure VLANs on LAG 1 dynamically.
正解：B
質問 # 29
You are reviewing an endpoint entry in ClearPass Policy Manager (CPPM) Endpoints Repository.
What is a good sign that someone has been trying to gain unauthorized access to the network?
- A. The entry shows an Unknown status.
- B. The entry lacks a hostname or includes a hostname with long seemingly random characters.
- C. The entry shows a profile conflict of having a new profile of Computer for a profiled Printer.
- D. The entry shows multiple DHCP options under the fingerprints.
正解：C
解説：
Explanation
A profile conflict occurs when ClearPass Policy Manager (CPPM) detects a change in the device category or OS family of an endpoint that has been previously profiled. This could indicate that someone has spoofed the MAC address of a legitimate device and is trying to gain unauthorized access to the network. For example, if an endpoint that was previously profiled as a Printer suddenly shows a new profile of Computer, this could be a sign of an attack. You can find more information about profile conflicts and how to resolve them in the ClearPass Policy Manager User Guide1. The other options are not necessarily signs of unauthorized access, as they could have other explanations. For example, multiple DHCP options under the fingerprints could indicate that the device has connected to different networks or subnets, an Unknown status could indicate that the device has not been authenticated yet, and a lack of hostname or a random hostname could indicate that the device has not been configured properly or has been reset to factory settings.
質問 # 30
A customer's admins have added RF Protect licenses and enabled WIDS for a customer's AOS 8-based solution. The customer wants to use the built-in capabilities of APs without deploying dedicated air monitors (AMs). Admins tested rogue AP detection by connecting an unauthorized wireless AP to a switch. The rogue AP was not detected even after several hours.
What is one point about which you should ask?
- A. Whether admins enabled wireless containment
- B. Whether APs' switch ports support all the VLANs that are accessible at the edge
- C. Whether admins set at least one radio on each AP to air monitor mode
- D. Whether the customer is using non-standard Wi-Fi channels in the deployment
正解：C
質問 # 31
You are working with a developer to design a custom NAE script for a customer. You are helping the developer find the correct REST API resource to monitor.
Refer to the exhibit below.
What should you do before proceeding?
- A. Make sure that your browser is set up to store authentication tokens and cookies.
- B. Enable the switch to listen to REST API calls on the default VRF.
- C. Go to the v1 API documentation interface instead of the v10.10 interface.
- D. Use your Aruba passport account and collect a token to use when trying out API calls.
正解：D
解説：
Explanation
The exhibit shows the ArubaOS-CX REST API documentation interface, which allows you to explore the available resources and try out the API calls using the "Try it out" button. However, before you can use this feature, you need to authenticate yourself with your Aruba passport account and collect a token that will be used for subsequent requests. This token will expire after a certain time, so you need to refresh it periodically. You can find more details about how to use the documentation interface and collect a token in the ArubaOS-CX REST API Guide1.
質問 # 32
You are configuring gateway IDS/IPS settings in Aruba Central.
For which reason would you set the Fail Strategy to Bypass?
- A. To avoid wasting IPS engine resources on filtering traffic for unauthenticated clients
- B. To permit traffic if the IPS engine falls to inspect It
- C. To tell gateways to stop enforcing IDS/IPS policies if they lose connectivity to the Internet
- D. To enable the gateway to honor the allowlist settings configured in IDS/IPS policies
正解：B
解説：
Explanation
The Fail Strategy is a configuration option for the IPS mode of inspection on Aruba gateways. It defines the action to be taken when the IPS engine crashes and cannot inspect the traffic. There are two possible options for the Fail Strategy: Bypass and Block1 If you set the Fail Strategy to Bypass, you are telling the gateway to allow the traffic to flow without inspection when the IPS engine fails. This option ensures that there is no disruption in the network connectivity, but it also exposes the network to potential threats that are not detected or prevented by the IPS engine1 If you set the Fail Strategy to Block, you are telling the gateway to stop the traffic flow until the IPS engine resumes inspection. This option ensures that there is no compromise in the network security, but it also causes a loss of network connectivity for the duration of the IPS engine failure1
質問 # 33
A customer needs you to configure Aruba ClearPass Policy Manager (CPPM) to authenticate domain users on domain computers. Domain users, domain computers, and domain controllers receive certificates from a Windows CA. CPPM should validate these certificates and verify that the users and computers have accounts in Windows AD. The customer requires encryption for all communications between CPPM and the domain controllers.
You have imported the root certificate for the Windows CA to the ClearPass CA Trust list.
Which usages should you add to it based on these requirements?
- A. EAP and Radsec
- B. Radec and Aruba infrastructure
- C. EAP and AD/LDAP Server
- D. LDAP and Aruba infrastructure
正解：A
解説：
Explanation
EAP (Extensible Authentication Protocol) is a framework that allows different authentication methods to be used for network access. EAP is used for RADIUS/EAP authentication, which is a common method for authenticating domain users on domain computers using certificates. EAP requires that the RADIUS server, such as ClearPass Policy Manager (CPPM), validates the certificates presented by the clients and verifies their identity against an identity source, such as Windows AD. Therefore, the root certificate for the Windows CA that issues the certificates to the clients should have the EAP usage in the ClearPass CA Trust list.
Radsec (RADIUS over TLS) is a protocol that allows secure and encrypted communication between RADIUS servers and clients using TLS. Radsec is used for encrypting all communications between CPPM and the domain controllers, which act as RADIUS clients. Radsec requires that both the RADIUS server and the RADIUS client validate each other's certificates and establish a TLS session. Therefore, the root certificate for the Windows CA that issues the certificates to the domain controllers should have the Radsec usage in the ClearPass CA Trust list.
質問 # 34
Refer to the scenario.
A customer has an Aruba ClearPass cluster. The customer has AOS-CX switches that implement 802.1X authentication to ClearPass Policy Manager (CPPM).
Switches are using local port-access policies.
The customer wants to start tunneling wired clients that pass user authentication only to an Aruba gateway cluster. The gateway cluster should assign these clients to the "eth-internet" role. The gateway should also handle assigning clients to their VLAN, which is VLAN 20.
The plan for the enforcement policy and profiles is shown below:
The gateway cluster has two gateways with these IP addresses:
* Gateway 1
o VLAN 4085 (system IP) = 10.20.4.21
o VLAN 20 (users) = 10.20.20.1
o VLAN 4094 (WAN) = 198.51.100.14
* Gateway 2
o VLAN 4085 (system IP) = 10.20.4.22
o VLAN 20 (users) = 10.20.20.2
o VLAN 4094 (WAN) = 198.51.100.12
* VRRP on VLAN 20 = 10.20.20.254
The customer requires high availability for the tunnels between the switches and the gateway cluster. If one gateway falls, the other gateway should take over its tunnels. Also, the switch should be able to discover the gateway cluster regardless of whether one of the gateways is in the cluster.
You are setting up the UBT zone on an AOS-CX switch.
Which IP addresses should you define in the zone?
- A. Primary controller = 10 20 4 21: backup controller not defined
- B. Primary controller = 10.20.4.21; backup controller = 10.20.4.22
- C. Primary controller = 10.20.20.254; backup controller, not defined
- D. [Primary controller = 198.51.100.14; backup controller = 10.20.4.21
正解：B
解説：
Explanation
To configure user-based tunneling (UBT) on an AOS-CX switch, you need to specify the IP addresses of the mobility gateways that will receive the tunneled traffic from the switch 1. The primary controller is the preferred gateway for the switch to establish a tunnel, and the backup controller is the alternative gateway in case the primary controller fails or becomes unreachable 1. The IP addresses of the gateways should be their system IP addresses, which are used for inter-controller communication and cluster discovery 2.
In this scenario, the customer has a gateway cluster with two gateways, each with a system IP address on VLAN 4085. Therefore, the switch should use these system IP addresses as the primary and backup controllers for UBT. The IP addresses of the gateways on VLAN 20 and VLAN 4094 are not relevant for UBT, as they are used for user traffic and WAN connectivity, respectively 2. The VRRP IP address on VLAN 20 is also not applicable for UBT, as it is a virtual IP address that is not associated with any specific gateway 3.
Therefore, the best option is to use 10.20.4.21 as the primary controller and 10.20.4.22 as the backup controller for UBT on the switch. This will ensure high availability and cluster discovery for the tunneled traffic from the switch to the gateway cluster 12.
質問 # 35
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