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【General】 Trustworthy HPE6-A78 Dumps & HPE6-A78 Examcollection Dumps

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HP Aruba Certified Network Security Associate Exam Sample Questions (Q167-Q172):NEW QUESTION # 167
What is one practice that can help you to maintain a digital chain of custody in your network?
  • A. Ensure that all network infrastructure devices receive a valid clock using authenticated NTP.
  • B. Enable packet capturing on Instant AP or Mobility Controller (MC) datapath on an ongoing basis.
  • C. Enable packet capturing on Instant AP or Mobility Controller (MC) controlpath on an ongoing basis.
  • D. Ensure that all network infrastructure devices use RADIUS rather than TACACS+ to authenticate managers.
Answer: A
Explanation:
A digital chain of custody ensures that evidence (e.g., logs, timestamps) collected from a network can be reliably used in legal or forensic investigations. It requires maintaining the integrity and authenticity of data, including accurate timestamps for events. HPE Aruba Networking devices, such as Instant APs, Mobility Controllers (MCs), and AOS-CX switches, support features to help maintain a digital chain of custody.
Option C, "Ensure that all network infrastructure devices receive a valid clock using authenticated NTP," is correct. Accurate and synchronized time across all network devices is critical for maintaining a digital chain of custody. Timestamps in logs (e.g., authentication events, traffic logs) must be consistent and verifiable. Network Time Protocol (NTP) is used to synchronize device clocks, and authenticated NTP ensures that the time source is trusted and not tampered with (e.g., using MD5 or SHA authentication). This practice ensures that logs from different devices can be correlated accurately during an investigation.
Option A, "Enable packet capturing on Instant AP or Mobility Controller (MC) datapath on an ongoing basis," is incorrect. While packet capturing on the datapath (user traffic) can provide detailed traffic data for analysis, enabling it on an ongoing basis is impractical due to storage and performance constraints. Packet captures are typically used for specific troubleshooting or investigations, not for maintaining a chain of custody.
Option B, "Ensure that all network infrastructure devices use RADIUS rather than TACACS+ to authenticate managers," is incorrect. The choice of RADIUS or TACACS+ for manager authentication does not directly impact the digital chain of custody. Both protocols can log authentication events, but the protocol used does not ensure the integrity of timestamps or evidence.
Option D, "Enable packet capturing on Instant AP or Mobility Controller (MC) controlpath on an ongoing basis," is incorrect for similar reasons as Option A. Control path (control plane) packet captures include management traffic (e.g., between APs and MCs), but enabling them continuously is not practical and does not directly contribute to maintaining a chain of custody. Accurate timestamps in logs are more relevant.
The HPE Aruba Networking Security Guide states:
"Maintaining a digital chain of custody requires ensuring the integrity and authenticity of network logs and events. A critical practice is to ensure that all network infrastructure devices, such as Mobility Controllers and AOS-CX switches, receive a valid and synchronized clock using authenticated NTP. Use the command ntp server <ip-address> key <key-id> to configure authenticated NTP, ensuring that timestamps in logs are accurate and verifiable for forensic investigations." (Page 85, Digital Chain of Custody Section) Additionally, the HPE Aruba Networking AOS-8 8.11 User Guide notes:
"Accurate time synchronization is essential for maintaining a digital chain of custody. Configure all devices to use authenticated NTP to synchronize their clocks with a trusted time source. This ensures that event logs, such as authentication and traffic logs, have consistent and reliable timestamps, which can be correlated across devices during an investigation." (Page 380, Time Synchronization Section)
:
HPE Aruba Networking Security Guide, Digital Chain of Custody Section, Page 85.
HPE Aruba Networking AOS-8 8.11 User Guide, Time Synchronization Section, Page 380.

NEW QUESTION # 168
Your HPE Aruba Networking Mobility Master-based solution has detected a rogue AP. Among other information, the AOS Detected Radios page lists this information for the AP:
SSID = PublicWiFi
BSSID = a8:bd:27:12:34:56
Match method = Plus one
Match method = Eth-Wired-Mac-Table
The security team asks you to explain why this AP is classified as a rogue. What should you explain?
  • A. The AP is probably connected to your LAN because it has a BSSID that is close to a MAC address that has been detected in your LAN. Because it does not belong to the company, it is a suspected rogue.
  • B. The AP is an AP that belongs to your solution. However, the AOS has detected that it is behaving suspiciously. It might have been compromised, so it is classified as a suspected rogue.
  • C. The AP has been detected using multiple MAC addresses. This indicates that the AP is spoofing its MAC address, which qualifies it as a suspected rogue.
  • D. The AP has a BSSID that is close to your authorized APs' BSSIDs. This indicates that the AP might be spoofing the corporate SSID and attempting to lure clients to it, making the AP a suspected rogue.
Answer: A
Explanation:
HPE Aruba Networking's Wireless Intrusion Prevention (WIP) system, part of the AOS-8 architecture (Mobility Master and Mobility Controllers), is designed to detect and classify rogue APs. The "AOS Detected Radios" page provides details about detected APs, including their SSID, BSSID, and match methods used to classify them.
In this case, the AP is classified as a rogue with the following match methods:
Plus one: This indicates that the BSSID of the detected AP is numerically close (e.g., differs by one in the last octet) to the MAC address of a known device in the network.
Eth-Wired-Mac-Table: This indicates that the AP's MAC address (or a closely related MAC address) was found in the wired network's MAC address table, suggesting that the AP is connected to the LAN.
These match methods suggest that the AP is likely connected to the company's wired LAN (via the Eth-Wired-Mac-Table match) and has a BSSID that is close to a known device's MAC address (Plus one match). Since this AP is not part of the company's authorized AP list (it's broadcasting "PublicWiFi," which may not be a corporate SSID), it is classified as a suspected rogue. This scenario is common when an unauthorized AP is plugged into the corporate LAN, posing a security risk.
Option A, "The AP has been detected using multiple MAC addresses," is incorrect because the match methods do not indicate multiple MAC addresses; they indicate a close match to a known MAC and a presence in the wired MAC table.
Option C, "The AP is an AP that belongs to your solution," is incorrect because the AP is classified as a rogue, meaning it is not part of the authorized APs in the solution.
Option D, "The AP has a BSSID that is close to your authorized APs' BSSIDs," is partially correct in that the "Plus one" match indicates a close BSSID, but the key reason for the rogue classification is its connection to the LAN (Eth-Wired-Mac-Table), not just the BSSID similarity.
The HPE Aruba Networking AOS-8 8.11 User Guide states:
"The Wireless Intrusion Prevention (WIP) system detects rogue APs by analyzing their BSSIDs, SSIDs, and connectivity to the wired network. The 'Eth-Wired-Mac-Table' match method indicates that the AP's MAC address (or a closely related address) was found in the wired network's MAC address table, suggesting that the AP is connected to the LAN. The 'Plus one' match method indicates that the AP's BSSID is numerically close to a known MAC address in the network, which can indicate a potential rogue device attempting to mimic a legitimate device." (Page 412, Rogue AP Detection Section) Additionally, the guide notes:
"A rogue AP is classified as 'suspected rogue' if it is detected on the wired network (e.g., via Eth-Wired-Mac-Table) and is not part of the authorized AP list. This often occurs when an unauthorized AP is connected to the corporate LAN." (Page 413, Rogue AP Classification Section)
:
HPE Aruba Networking AOS-8 8.11 User Guide, Rogue AP Detection Section, Page 412.
HPE Aruba Networking AOS-8 8.11 User Guide, Rogue AP Classification Section, Page 413.

NEW QUESTION # 169
What is a benefit or using network aliases in ArubaOS firewall policies?
  • A. You can use the aliases to translate client IP addresses to other IP addresses on the other side of the firewall
  • B. You can associate a reputation score with the network alias to create rules that filler traffic based on reputation rather than IP.
  • C. You can use the aliases to conceal the true IP addresses of servers from potentially untrusted clients.
  • D. You can adjust the IP addresses in the aliases, and the rules using those aliases automatically update
Answer: D
Explanation:
In ArubaOS firewall policies, using network aliases allows administrators to manage groups of IP addresses more efficiently. By associating multiple IPs with a single alias, any changes made to the alias (like adding or removing IP addresses) are automatically reflected in all firewall rules that reference that alias. This significantly simplifies the management of complex rulesets and ensures consistency across security policies, reducing administrative overhead and minimizing the risk of errors.

NEW QUESTION # 170
You have configured a WLAN to use Enterprise security with the WPA3 version.
How does the WLAN handle encryption?
  • A. Traffic is encrypted with TKIP and keys derived from a PMK shared by all clients on the WLAN.
  • B. Traffic is encrypted with TKIP and keys derived from a unique PMK per client.
  • C. Traffic is encrypted with AES and keys derived from a PMK shared by all clients on the WLAN.
  • D. Traffic is encrypted with AES and keys derived from a unique PMK per client.
Answer: D
Explanation:
WPA3-Enterprise is a security protocol introduced to enhance the security of wireless networks, particularly in enterprise environments. It builds on the foundation of WPA2 but introduces stronger encryption and key management practices. In WPA3-Enterprise, authentication is typically performed using 802.1X, and encryption is handled using the Advanced Encryption Standard (AES).
WPA3-Enterprise Encryption: WPA3-Enterprise uses AES with the Galois/Counter Mode Protocol (GCMP) or Cipher Block Chaining Message Authentication Code Protocol (CCMP), both of which are AES-based encryption methods. WPA3 does not use TKIP (Temporal Key Integrity Protocol), which is a legacy encryption method used in WPA and early WPA2 deployments and is considered insecure.
Pairwise Master Key (PMK): In WPA3-Enterprise, the PMK is derived during the 802.1X authentication process (e.g., via EAP-TLS or EAP-TTLS). Each client authenticates individually with the authentication server (e.g., ClearPass), resulting in a unique PMK for each client. This PMK is then used to derive session keys (Pairwise Transient Keys, PTKs) for encrypting the client's traffic, ensuring that each client's traffic is encrypted with unique keys.
Option A, "Traffic is encrypted with TKIP and keys derived from a PMK shared by all clients on the WLAN," is incorrect because WPA3 does not use TKIP (it uses AES), and the PMK is not shared among clients in WPA3-Enterprise; each client has a unique PMK.
Option B, "Traffic is encrypted with TKIP and keys derived from a unique PMK per client," is incorrect because WPA3 does not use TKIP; it uses AES.
Option C, "Traffic is encrypted with AES and keys derived from a PMK shared by all clients on the WLAN," is incorrect because, in WPA3-Enterprise, the PMK is unique per client, not shared.
Option D, "Traffic is encrypted with AES and keys derived from a unique PMK per client," is correct. WPA3-Enterprise uses AES for encryption, and each client derives a unique PMK during 802.1X authentication, which is used to generate unique session keys for encryption.
The HPE Aruba Networking AOS-8 8.11 User Guide states:
"WPA3-Enterprise enhances security by using AES encryption with GCMP or CCMP. In WPA3-Enterprise mode, each client authenticates via 802.1X, resulting in a unique Pairwise Master Key (PMK) for each client. The PMK is used to derive session keys (Pairwise Transient Keys, PTKs) that encrypt the client's traffic with AES, ensuring that each client's traffic is protected with unique keys. WPA3 does not support TKIP, which is a legacy encryption method." (Page 285, WPA3-Enterprise Security Section) Additionally, the HPE Aruba Networking Wireless Security Guide notes:
"WPA3-Enterprise requires 802.1X authentication, which generates a unique PMK for each client. This PMK is used to derive AES-based session keys, providing individualized encryption for each client's traffic and eliminating the risks associated with shared keys." (Page 32, WPA3 Security Features Section)
:
HPE Aruba Networking AOS-8 8.11 User Guide, WPA3-Enterprise Security Section, Page 285.
HPE Aruba Networking Wireless Security Guide, WPA3 Security Features Section, Page 32.

NEW QUESTION # 171
Refer to the exhibit.

How can you use the thumbprint?
  • A. When you first connect to the switch with SSH from a management station, make sure that the thumbprint matches to ensure that a man-in-t he-mid die (MITM) attack is not occurring
  • B. install this thumbprint on management stations the stations can then authenticate with the thumbprint instead of admins having to enter usernames and passwords.
  • C. Copy the thumbprint to other Aruba switches to establish a consistent SSH Key for all switches this will enable managers to connect to the switches securely with less effort
  • D. Install this thumbprint on management stations to use as two-factor authentication along with manager usernames and passwords, this will ensure managers connect from valid stations
Answer: A
Explanation:
The thumbprint (also known as a fingerprint) of a certificate or SSH key is a hash that uniquely represents the public key contained within. When you first connect to the switch with SSH from a management station, you should ensure that the thumbprint matches what you expect. This is a security measure to confirm the identity of the device you are connecting to and to ensure that a man-in-the-middle (MITM) attack is not occurring. If the thumbprint matches the known good thumbprint of the switch, it is safe to proceed with the connection.
References:
SSH and network security protocols that discuss the importance of verifying the identity of devices before initiating a secure connection.
IT security guides that provide best practices for avoiding MITM attacks during SSH sessions.

NEW QUESTION # 172
......
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