[Nov-2024] The Best Aruba ACNSA HPE6-A78 Professional Exam Questions
Try 100% Updated HPE6-A78 Exam Questions [2024]
NEW QUESTION # 45
What is symmetric encryption?
- A. It uses a Key that is double the size of the message which it encrypts.
- B. It any form of encryption mat ensures that thee ciphertext Is the same length as the plaintext.
- C. It uses the same key to encrypt plaintext as to decrypt ciphertext.
- D. It simultaneously creates ciphertext and a same-size MAC.
Answer: C
NEW QUESTION # 46
You are managing an Aruba Mobility Controller (MC). What is a reason for adding a "Log Settings" definition in the ArubaOS Diagnostics > System > Log Settings page?
- A. Configuring the MC to generate logs for a particular event category and level, but only for a specific user or AP.
- B. Configuring the log facility and log format that the MC will use for forwarding logs to all Syslog servers
- C. Configuring a filter that you can apply to a defined Syslog server in order to filter events by subcategory
- D. Configuring the Syslog server settings for the server to which the MC forwards logs for a particular category and level
Answer: D
NEW QUESTION # 47
What is one benefit of enabling Enhanced Secure mode on an ArubaOS-Switch?
- A. All interfaces have 802.1X authentication enabled on them by default.
- B. Insecure algorithms for protocol such as SSH are automatically disabled.
- C. A self-signed certificate is automatically added to the switch trusted platform module (TPM).
- D. Control Plane policing rate limits edge ports to mitigate DoS attacks on network servers.
Answer: B
Explanation:
In the context of ArubaOS-Switches, enabling Enhanced Secure mode has several benefits, one of which includes disabling insecure algorithms for protocols such as SSH. This is in line with security best practices, as older, less secure algorithms are known to be vulnerable to various types of cryptographic attacks. When Enhanced Secure mode is enabled, the switch automatically restricts the use of such algorithms, thereby enhancing the security of management access.
NEW QUESTION # 48 
What is one thing can you determine from the exhibits?
- A. CPPM first assigned the client to a role based on the user's identity. Then, it discovered that the client had an invalid category, so it sent a CoA to blacklist the client.
- B. CPPM sent a CoA message to the client to prompt the client to submit information that CPPM can use to profile it.
- C. CPPM originally assigned the client to a role for non-profiled devices. It sent a CoA to the authenticator after it categorized the device.
- D. CPPM was never able to determine a device category for this device, so you need to check settings in the network infrastructure to ensure they support CPPM's endpoint classification.
Answer: C
Explanation:
Based on the exhibits which seem to show RADIUS authentication and CoA logs, one can determine that CPPM (ClearPass Policy Manager) initially assigned the client to a role meant for non-profiled devices and then sent a CoA to the network access device (authenticator) once the device was categorized. This is a common workflow in network access control, where a device is first given limited access until it can be properly identified, after which appropriate access policies are applied.
NEW QUESTION # 49
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 adjust the IP addresses in the aliases, and the rules using those aliases automatically update
- C. You can associate a reputation score with the network alias to create rules that filler traffic based on reputation rather than IP.
- D. You can use the aliases to conceal the true IP addresses of servers from potentially untrusted clients.
Answer: B
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 # 50
What is an example or phishing?
- A. An attacker sends emails posing as a service team member to get users to disclose their passwords.
- B. An attacker sends TCP messages to many different ports to discover which ports are open.
- C. An attacker lures clients to connect to a software-based AP that is using a legitimate SSID.
- D. An attacker checks a user's password by using trying millions of potential passwords.
Answer: A
NEW QUESTION # 51
What is a benefit of Protected Management Frames (PMF). sometimes called Management Frame Protection (MFP)?
- A. PMF protects clients from DoS attacks based on forged de-authentication frames
- B. PMF prevents hackers from capturing the traffic between APs and Mobility Controllers.
- C. PMF ensures trial traffic between APs and Mobility Controllers (MCs) is encrypted.
- D. PMF helps to protect APs and MCs from unauthorized management access by hackers.
Answer: A
Explanation:
Protected Management Frames (PMF), also known as Management Frame Protection (MFP), is designed to protect clients from denial-of-service (DoS) attacks that involve forged de-authentication and disassociation frames. These attacks can disconnect legitimate clients from the network. PMF provides a way to authenticate these management frames, ensuring that they are not forged, thus enhancing the security of the wireless network.
References:
IEEE 802.11w amendment, which introduces PMF as a security enhancement to protect management frames.
Wi-Fi Alliance security guidelines for Protected Management Frames (PMF).
NEW QUESTION # 52
You have an Aruba solution with multiple Mobility Controllers (MCs) and campus APs. You want to deploy a WPA3-Enterprise WLAN and authenticate users to Aruba ClearPass Policy Manager (CPPM) with EAP-TLS.
What is a guideline for ensuring a successful deployment?
- A. Educate users in selecting strong passwords with at least 8 characters.
- B. Avoid enabling CNSA mode on the WLAN, which requires the internal MC RADIUS server.
- C. Deploy certificates to clients, signed by a CA that CPPM trusts.
- D. Ensure that clients trust the root CA for the MCs' Server Certificates.
Answer: C
Explanation:
For WPA3-Enterprise with EAP-TLS, it's crucial that clients have a trusted certificate installed for the authentication process. EAP-TLS relies on a mutual exchange of certificates for authentication. Deploying client certificates signed by a CA that CPPM trusts ensures that the ClearPass Policy Manager can verify the authenticity of the client certificates during the TLS handshake process. Trust in the root CA is typically required for the server side of the authentication process, not the client side, which is covered by the client's own certificate.
NEW QUESTION # 53
What is one way that WPA3-Enterprise enhances security when compared to WPA2-Enterprise?
- A. WPA3-Enterprise can operate in CNSA mode, which mandates that the 802.11 association uses secure algorithms.
- B. WPA3-Enterprise uses Diffie-Hellman in order to authenticate clients, while WPA2-Enterprise uses
802.1X authentication. - C. WPA3-Enterprise implements the more secure simultaneous authentication of equals (SAE), while WPA2-Enterprise uses 802.1X.
- D. WPA3-Enterprise provides built-in mechanisms that can deploy user certificates to authorized end-user devices.
Answer: A
Explanation:
WPA3-Enterprise enhances network security over WPA2-Enterprise through several improvements, one of which is the ability to operate in CNSA (Commercial National Security Algorithm) mode. This mode mandates the use of secure cryptographic algorithms during the 802.11 association process, ensuring that all communications are highly secure. The CNSA suite provides stronger encryption standards designed to protect sensitive government, military, and industrial communications. Unlike WPA2, WPA3's CNSA mode uses stronger cryptographic primitives, such as AES-256 in Galois/Counter Mode (GCM) for encryption and SHA-384 for hashing, which are not standard in WPA2-Enterprise.
NEW QUESTION # 54
What are some functions of an AruDaOS user role?
- A. The role determines which wireless networks (SSiDs) a user is permitted to access
- B. The role determines which control plane ACL rules apply to the client's traffic
- C. The role determines which firewall policies and bandwidth contract apply to the clients traffic
- D. The role determines which authentication methods the user must pass to gain network access
Answer: C
Explanation:
An ArubaOS user role determines the firewall policies and bandwidth contracts that apply to the client's traffic. When a user is authenticated, they are assigned a role, and this role has associated policies that govern network access rights, Quality of Service (QoS), Layer 2 forwarding, Layer 3 routing behaviors, and bandwidth contracts for users or devices.
References:
Aruba Networks official documentation on user roles in ArubaOS.
Technical guides that detail user role definitions and their impact on network policies.
NEW QUESTION # 55
What is a Key feature of me ArubaOS firewall?
- A. The firewall Includes application layer gateways (ALGs). which it uses to filter Web traffic based on the reputation of the destination web site.
- B. The firewall is designed to fitter traffic primarily based on wireless 802.11 headers, making it ideal for mobility environments
- C. The firewall examines all traffic at Layer 2 through Layer 4 and uses source IP addresses as the primary way to determine how to control traffic.
- D. The firewall is stateful which means that n can track client sessions and automatically allow return traffic for permitted sessions
Answer: D
Explanation:
The ArubaOS firewall is a stateful firewall, meaning that it can track the state of active sessions and can make decisions based on the context of the traffic. This stateful inspection capability allows it to automatically allow return traffic for sessions that it has permitted, thereby enabling seamless two-way communication for authorized users while maintaining the security posture of the network.References:
ArubaOS firewall documentation.
NEW QUESTION # 56
You have an Aruba Mobility Controller (MC). for which you are already using Aruba ClearPass Policy Manager (CPPM) to authenticate access to the Web Ul with usernames and passwords You now want to enable managers to use certificates to log in to the Web Ul CPPM will continue to act as the external server to check the names in managers' certificates and tell the MC the managers' correct rote in addition to enabling certificate authentication. what is a step that you should complete on the MC?
- A. Create a local admin account mat uses certificates in the account, specify the correct trusted CA certificate and external authentication
- B. Verify that the MC has the correct certificates, and add RadSec to the RADIUS server configuration for CPPM
- C. install all of the managers' certificates on the MC as OCSP Responder certificates
- D. Verify that the MC trusts CPPM's HTTPS certificate by uploading a trusted CA certificate Also, configure a CPPM username and password on the MC
Answer: D
Explanation:
To enable managers to use certificates to log into the Web UI of an Aruba Mobility Controller (MC), where Aruba ClearPass Policy Manager (CPPM) acts as the external server for authentication, it is essential to ensure that the MC trusts the HTTPS certificate used by CPPM. This involves uploading a trusted CA certificate to the MC that matches the one used by CPPM. Additionally, configuring a username and password for CPPM on the MC might be necessary to secure and facilitate communication between the MC and CPPM. This setup ensures that certificate-based authentication is securely validated, maintaining secure access control for the Web UI.
References:
Aruba Mobility Controller configuration guides that detail the process of setting up certificate-based authentication.
Best practices for secure authentication and certificate management in enterprise network environments.
NEW QUESTION # 57
How should admins deal with vulnerabilities that they find in their systems?
- A. They should classify the vulnerability as malware. a DoS attack or a phishing attack.
- B. They should add the vulnerability to their Common Vulnerabilities and Exposures (CVE).
- C. They should notify the security team as soon as possible that the network has already been breached.
- D. They should apply fixes, such as patches, to close the vulnerability before a hacker exploits it.
Answer: D
Explanation:
When vulnerabilities are identified in systems, it is crucial for administrators to act immediately to mitigate the risk of exploitation by attackers. The appropriate response involves applying fixes, such as software patches or configuration changes, to close the vulnerability. This proactive approach is necessary to protect the integrity, confidentiality, and availability of the system resources and data. It's important to prioritize these actions based on the severity and exploitability of the vulnerability to ensure that the most critical issues are addressed first.References:
Best practices in system security management.
NEW QUESTION # 58
Refer to the exhibit.
This Aruba Mobility Controller (MC) should authenticate managers who access the Web Ul to ClearPass Policy Manager (CPPM) ClearPass admins have asked you to use RADIUS and explained that the MC should accept managers' roles in Aruba-Admin-Role VSAs Which setting should you change to follow Aruba best security practices?
- A. Change the default role to "guest-provisioning"
- B. Disable local authentication
- C. Clear the MSCHAP check box
- D. Change the local user role to read-only
Answer: A
NEW QUESTION # 59
What is one practice that can help you to maintain a digital chain or custody In your network?
- A. Enable packet capturing on Instant AP or Mobility Controller (MC) control path on an ongoing basis.
- B. Ensure that all network Infrastructure devices use RADIUS rather than TACACS+ to authenticate managers
- C. Ensure that all network infrastructure devices receive a valid clock using authenticated NTP
- D. Enable packet capturing on Instant AP or Moodily Controller (MC) datepath on an ongoing basis
Answer: D
NEW QUESTION # 60
Which attack is an example or social engineering?
- A. An email Is used to impersonate a Dank and trick users into entering their bank login information on a fake website page.
- B. An attack exploits an operating system vulnerability and locks out users until they pay the ransom.
- C. A hacker eavesdrops on insecure communications, such as Remote Desktop Program (RDP). and discovers login credentials.
- D. A user visits a website and downloads a file that contains a worm, which sell-replicates throughout the network.
Answer: A
NEW QUESTION # 61
Your Aruba Mobility Master-based solution has detected a suspected rogue AP. Among other information, the ArubaOS 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 an AP that belongs to your solution. However, the ArubaOS has detected that it is behaving suspiciously. It might have been compromised, so it is classified as a suspected rogue.
- B. 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.
- C. 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.
- D. 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.
Answer: B
Explanation:
The Match method 'Eth-Wired-Mac-Table' suggests that the BSSID of the rogue AP has been found in the Ethernet (wired) MAC address table of the network infrastructure. This means the AP is physically connected to the LAN. If the BSSID does not match the company's authorized APs, it implies the AP is unauthorized and hence classified as a rogue.
NEW QUESTION # 62
From which solution can ClearPass Policy Manager (CPPM) receive detailed information about client device type OS and status?
- A. ClearPass OnGuard
- B. ClearPass Onboard
- C. ClearPass Access Tracker
- D. ClearPass Guest
Answer: A
NEW QUESTION # 63
Which is a correct description of a stage in the Lockheed Martin kill chain?
- A. In the reconnaissance stage, the hacker assesses the impact of the attack and how much information was exfilltrated.
- B. In the delivery stage, malware collects valuable data and delivers or exfilltrated it to the hacker.
- C. In the exploitation and installation phases, malware creates a backdoor into the infected system for the hacker.
- D. In the weaponization stage, which occurs after malware has been delivered to a system, the malware executes Its function.
Answer: C
Explanation:
The Lockheed Martin Cyber Kill Chain model describes the stages of a cyber attack. In the exploitation phase, the attacker uses vulnerabilities to gain access to the system. Following this, in the installation phase, the attacker installs a backdoor or other malicious software to ensure persistent access to the compromised system. This backdoor can then be used to control the system, steal data, or execute additional attacks.
References:
Lockheed Martin Cyber Kill Chain framework.
NEW QUESTION # 64
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