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[Hardware] Tips to Crack the HPE6-A78 Exam

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【Hardware】 Tips to Crack the HPE6-A78 Exam

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HP Aruba Certified Network Security Associate Exam Sample Questions (Q50-Q55):NEW QUESTION # 50
You have detected a Rogue AP using the Security Dashboard Which two actions should you take in responding to this event? (Select two)
  • A. There is no need to locale the AP If you manually contain It.
  • B. There is no need to locate the AP If the Aruba solution is properly configured to automatically contain it.
  • C. For forensic purposes, you should copy out logs with relevant information, such as the time mat the AP was detected and the AP's MAC address.
  • D. You should receive permission before containing an AP. as this action could have legal Implications.
  • E. This is a serious security event, so you should always contain the AP immediately regardless of your company's specific policies.
Answer: C,D
Explanation:
When responding to the detection of a Rogue AP, it's important to consider legal implications and to gather forensic evidence:
You should receive permission before containing an AP (Option C), as containing it could disrupt service and may have legal implications, especially if the AP is on a network that the organization does not own.
For forensic purposes, it is essential to document the event by copying out logs with relevant information, such as the time the AP was detected and the AP's MAC address (Option D). This information could be crucial if legal action is taken or if a detailed analysis of the security breach is required.
Automatically containing an AP without consideration for the context (Options A and E) can be problematic, as it might inadvertently interfere with neighboring networks and cause legal issues. Immediate containment without consideration of company policy (Option B) could also violate established incident response procedures.
:
Aruba Networks security resources that discuss the appropriate steps in responding to security events.
Industry guidelines on responsible handling of rogue access point detections, including legal considerations and incident documentation.

NEW QUESTION # 51
What is a consideration for using MAC authentication (MAC-Auth) to secure a wired or wireless connection?
  • A. It is very easy for hackers to spoof their MAC addresses and get around MAC authentication.
  • B. Headless devices, such as Internet of Things (loT) devices, must be configured in advance to support MAC-Auth.
  • C. As a Layer 2 authentication method, MAC-Auth cannot be used to authenticate devices to an external authentication server.
  • D. MAC-Auth can add a degree of security to an open WLAN by enabling the generation of a PMK to encrypt traffic.
Answer: A
Explanation:
MAC authentication, also known as MAC-Auth, is a method used to authenticate devices based on their Media Access Control (MAC) address. It is often employed in both wired and wireless networks to grant network access based solely on the MAC address of a device. While MAC-Auth is straightforward and doesn't require complex configuration, it has significant security limitations primarily because MAC addresses can be easily spoofed. Attackers can change the MAC address of their device to match an authorized one, thereby gaining unauthorized access to the network. This susceptibility to MAC address spoofing makes MAC-Auth a weaker security mechanism compared to more robust authentication methods like 802.1X, which involves mutual authentication and encryption protocols.

NEW QUESTION # 52
A company with 382 employees wants to deploy an open WLAN for guests. The company wants the experience to be as follows:

The company also wants to provide encryption for the network for devices mat are capable, you implement Tor the WLAN?
Which security options should
  • A. Captive portal and Opportunistic Wireless Encryption (OWE) in transition mode
  • B. WPA3-Personal and MAC-Auth
  • C. Opportunistic Wireless Encryption (OWE) and WPA3-Personal
  • D. Captive portal and WPA3-Personai
Answer: A
Explanation:
For a company that wants to deploy an open WLAN for guests with the ease of access and encryption for capable devices, using a captive portal with Opportunistic Wireless Encryption (OWE) in transition mode would be suitable. The captive portal allows for a user-friendly login page for authentication without a pre-shared key, and OWE provides encryption to protect user data without the complexities of traditional WPA or WPA2 encryption, which is ideal for guest networks. Transition mode allows devices that support OWE to use it while still allowing older or unsupported devices to connect.
:
Wi-Fi Alliance recommendations for OWE.
Best practices for guest Wi-Fi network setup.

NEW QUESTION # 53
Refer to the exhibit:
port-access role role1 vlan access 11
port-access role role2 vlan access 12
port-access role role3 vlan access 13
port-access role role4 vlan access 14
aaa authentication port-access dot1x authenticator
enable
interface 1/1/1
no shutdown
no routing
vlan access 1
aaa authentication port-access critical-role role1
aaa authentication port-access preauth-role role2
aaa authentication port-access auth-role role3
interface 1/1/2
no shutdown
no routing
vlan access 1
aaa authentication port-access critical-role role1
aaa authentication port-access preauth-role role2
aaa authentication port-access auth-role role3
The exhibit shows the configuration on an AOS-CX switch.
Client1 connects to port 1/1/1 and authenticates to HPE Aruba Networking ClearPass Policy Manager (CPPM). CPPM sends an Access-Accept with this VSA: Aruba-User-Role: role4.
Client2 connects to port 1/1/2 and does not attempt to authenticate.
To which roles are the users assigned?
  • A. Client1 = role3; Client2 = role1
  • B. Client1 = role4; Client2 = role1
  • C. Client1 = role3; Client2 = role2
  • D. Client1 = role4; Client2 = role2
Answer: D
Explanation:
The scenario involves an AOS-CX switch configured for 802.1X port-access authentication. The configuration defines several roles and their associated VLANs:
port-access role role1 vlan access 11: Role1 assigns VLAN 11.
port-access role role2 vlan access 12: Role2 assigns VLAN 12.
port-access role role3 vlan access 13: Role3 assigns VLAN 13.
port-access role role4 vlan access 14: Role4 assigns VLAN 14.
The switch has 802.1X authentication enabled globally (aaa authentication port-access dot1x authenticator enable). Two ports are configured:
Interface 1/1/1:
vlan access 1: Default VLAN is 1.
aaa authentication port-access critical-role role1: If the RADIUS server is unavailable, assign role1 (VLAN 11).
aaa authentication port-access preauth-role role2: Before authentication, assign role2 (VLAN 12).
aaa authentication port-access auth-role role3: After successful authentication, assign role3 (VLAN 13) unless overridden by a VSA.
Interface 1/1/2: Same configuration as 1/1/1.
Client1 on port 1/1/1:
Client1 authenticates successfully, and CPPM sends an Access-Accept with the VSA Aruba-User-Role: role4.
In AOS-CX, the auth-role (role3) is applied after successful authentication unless the RADIUS server specifies a different role via the Aruba-User-Role VSA. Since CPPM sends Aruba-User-Role: role4, and role4 exists on the switch, Client1 is assigned role4 (VLAN 14), overriding the default auth-role (role3).
Client2 on port 1/1/2:
Client2 does not attempt to authenticate (i.e., does not send 802.1X credentials).
In AOS-CX, if a client does not attempt authentication and no other authentication method (e.g., MAC authentication) is configured, the client is placed in the preauth-role (role2, VLAN 12). This role is applied before authentication or when authentication is not attempted, allowing the client limited access (e.g., to perform authentication or access a captive portal).
Option A, "Client1 = role3; Client2 = role2," is incorrect because Client1 should be assigned role4 (from the VSA), not role3.
Option B, "Client1 = role4; Client2 = role1," is incorrect because Client2 should be assigned the preauth-role (role2), not the critical-role (role1), since the RADIUS server is reachable (Client1 authenticated successfully).
Option C, "Client1 = role4; Client2 = role2," is correct. Client1 gets role4 from the VSA, and Client2 gets the preauth-role (role2) since it does not attempt authentication.
Option D, "Client1 = role3; Client2 = role1," is incorrect for the same reasons as Option A and Option B.
The HPE Aruba Networking AOS-CX 10.12 Security Guide states:
"After successful 802.1X authentication, the AOS-CX switch assigns the client to the auth-role configured for the port (e.g., aaa authentication port-access auth-role role3). However, if the RADIUS server returns an Aruba-User-Role VSA (e.g., Aruba-User-Role: role4), and the specified role exists on the switch, the client is assigned that role instead of the auth-role. If a client does not attempt authentication and no other authentication method is configured, the client is assigned the preauth-role (e.g., aaa authentication port-access preauth-role role2), which provides limited access before authentication." (Page 132, 802.1X Authentication Section) Additionally, the guide notes:
"The critical-role (e.g., aaa authentication port-access critical-role role1) is applied only when the RADIUS server is unavailable. The preauth-role is applied when a client connects but does not attempt 802.1X authentication." (Page 134, Port-Access Roles Section)
:
HPE Aruba Networking AOS-CX 10.12 Security Guide, 802.1X Authentication Section, Page 132.
HPE Aruba Networking AOS-CX 10.12 Security Guide, Port-Access Roles Section, Page 134.

NEW QUESTION # 54
You are troubleshooting an authentication issue for Aruba switches that enforce 802 IX10 a cluster of Aruba ClearPass Policy Manager (CPPMs) You know that CPPM Is receiving and processing the authentication requests because the Aruba switches are showing Access-Rejects in their statistics However, you cannot find the record tor the Access-Rejects in CPPM Access Tracker What is something you can do to look for the records?
  • A. Make sure that CPPM cluster settings are configured to show Access-Rejects
  • B. Verify that you are logged in to the CPPM Ul with read-write, not read-only, access
  • C. Click Edit in Access viewer and make sure that the correct servers are selected.
  • D. Go to the CPPM Event Viewer, because this is where RADIUS Access Rejects are stored.
Answer: A
Explanation:
If Access-Reject records are not showing up in the CPPM Access Tracker, one action you can take is to ensure that the CPPM cluster settings are configured to display Access-Rejects. Cluster-wide settings in CPPM can affect which records are visible in Access Tracker. Ensuring that these settings are correctly configured will allow you to view all relevant authentication records, including Access-Rejects.
References:
ClearPass Policy Manager documentation that includes information on cluster settings and Access Tracker configurations.
Troubleshooting guides for ClearPass that provide steps to resolve issues with viewing authentication records.

NEW QUESTION # 55
......
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