HPE6-A78 Exam Practice Questions prepared by HP Professionals
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HPE6-A78 exam is designed for network security professionals who want to enhance their skills and knowledge in network security and wireless networking. Aruba Certified Network Security Associate Exam certification is ideal for network security engineers, network administrators, security analysts, and wireless network professionals. Aruba Certified Network Security Associate Exam certification is also valuable for organizations that use Aruba products and want to ensure that their network security professionals have the skills and knowledge required to maintain a secure network infrastructure.
NEW QUESTION # 16
You have been authorized to use containment to respond to rogue APs detected by ArubaOS Wireless Intrusion Prevention (WIP). What is a consideration for using tarpit containment versus traditional wireless containment?
- A. Rather than target all clients connected to rogue APs, tarpit containment targets only authorized clients that are connected to a rogue AP, reducing the chance of negative effects on neighbors.
- B. Tarpit containment forms associations with clients to enable more effective containment with fewer disassociation frames than traditional wireless containment.
- C. Rather than function wirelessly, tarpit containment sends ARP frames over the wired network to poison rogue APs ARP tables and prevent them from transmitting on the wired network.
- D. Tarpit containment does not require an RF Protect license to function, while traditional wireless containment does.
Answer: B
Explanation:
Tarpit containment is a method used in ArubaOS Wireless Intrusion Prevention (WIP) to contain rogue APs.
It differs from traditional wireless containment in several ways, particularly in how it interacts with clients and manages network resources.
Tarpit containment works by spoofing frames from an AP to confuse a client about its association. It forces the client to associate with a fake channel or BSSID, which is more efficient than rogue containment via repeated de-authorization requests. This method is designed to be less disruptive and more resource-efficient1.
Here's why the other options are not correct:
Option A is incorrect because tarpit containment does not involve sending ARP frames over the wired network. It operates wirelessly by creating a fake channel or BSSID.
Option B is incorrect because tarpit containment does not selectively target authorized clients; it affects all clients connected to the rogue AP.
Option C is incorrect because tarpit containment does require an RF Protect license to function2.
Therefore, Option D is the correct answer. Tarpit containment is more effective at keeping clients off the network with fewer disassociation frames than traditional wireless containment. It achieves this by forming associations with clients, which leads to a more efficient use of airtime and reduces the chance of negative effects on legitimate network users12.
NEW QUESTION # 17
What is a vulnerability of an unauthenticated Dime-Heliman exchange?
- A. Participants must agree on a passphrase in advance, which can limit the usefulness of Diffie- Hell man in practical contexts.
- B. A brute force attack can relatively quickly derive Diffie-Hellman private values if they are able to obtain public values
- C. A hacker can replace the public values exchanged by the legitimate peers and launch an MITM attack.
- D. Diffie-Hellman with elliptic curve values is no longer considered secure in modem networks, based on NIST recommendations.
Answer: C
NEW QUESTION # 18
You have an Aruba Mobility Controller (MC) that is locked in a closet. What is another step that Aruba recommends to protect the MC from unauthorized access?
- A. Disable local authentication of administrators entirely.
- B. Change the password recovery password.
- C. Set the local admin password to a long random value that is unknown or locked up securely.
- D. Use local authentication rather than external authentication to authenticate admins.
Answer: B
Explanation:
Protecting an Aruba Mobility Controller from unauthorized access involves several layers of security. One recommendation is to change the password recovery password, which is a special type of password used to recover access to the device in the event the admin password is lost. Changing this to something complex and unique adds an additional layer of security in the event the physical security of the device is compromised.
NEW QUESTION # 19
What is a correct use case for using the specified certificate file format?
- A. using a PKCS7 file to install a certificate plus and its private key on a device
- B. using a PEM file to install a binary encoded certificate on a device
- C. using a PKCS7 file to install a binary encoded private key on a device
- D. using a PKCS12 file to install a certificate plus its private key on a device
Answer: D
Explanation:
The correct use case for using the specified certificate file format is option B, using a PKCS12 file to install a certificate along with its private key on a device. PKCS12 is a binary format for storing a certificate chain and private key in a single encrypted file. PEM files are Base64 encoded certificate files and are typically used for storing certificates, not private keys, and PKCS7 is used for certificate chains without the private key.
These answers are based on general networking and security practices, specifically within the context of Aruba network device configurations. If you have questions specific to Oracle Database 12c SQL, please provide the relevant details or ask separate questions related to that topic.
NEW QUESTION # 20
What is a use case for tunneling traffic between an Aruba switch and an AruDa Mobility Controller (MC)?
- A. simplifying network infrastructure management by using the MC to push configurations to the switches
- B. applying firewall policies and deep packet inspection to wired clients
- C. securing the network infrastructure control plane by creating a virtual out-of-band-management network
- D. enhancing the security of communications from the access layer to the core with data encryption
Answer: B
NEW QUESTION # 21
A company has a WLAN that uses Tunnel forwarding mode and WPA3-Enterprise security, supported by an Aruba Mobility Controller (MC) and campus APs (CAPs). You have been asked to capture packets from a wireless client connected to this WLAN and submit the packets to the security team.
What is a guideline for this capture?
- A. You should capture the traffic on the MC dataplane to obtain unencrypted traffic.
- B. You should mirror traffic from the switch port that connects to the AP out on a port connected to a packet analyzer.
- C. You should capture the traffic on the AP, so that the capture is as close to the source as possible.
- D. You should use an Air Monitor (AM) to capture the packets in the air.
Answer: D
Explanation:
The correct approach for capturing packets from a wireless client in a WLAN that uses Tunnel forwarding mode and WPA3-Enterprise, managed by an Aruba Mobility Controller and Campus APs, is to use an Air Monitor (AM). An AM is specifically designed to capture wireless traffic "in the air," which means it listens to the wireless signals transmitted between devices and the access points. This method ensures that the capture includes all the necessary details while maintaining the integrity and security of the data as it is transmitted over the air. Using an Air Monitor helps in analyzing the raw wireless traffic before it gets encrypted or tunneled to the Mobility Controller, providing a clear view of the wireless client's activity and interactions. The information regarding the use of Air Monitors for packet capture in such environments can be found in the Aruba Network's official documentation and configuration guides for WLAN setups and security analysis.
NEW QUESTION # 22
What is a benefit or using network aliases in ArubaOS firewall policies?
- A. You can adjust the IP addresses in the aliases, and the rules using those aliases automatically update
- 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 translate client IP addresses to other IP addresses on the other side of the firewall
- D. You can use the aliases to conceal the true IP addresses of servers from potentially untrusted clients.
Answer: B
NEW QUESTION # 23
Refer to the exhibit.
You are deploying a new ArubaOS Mobility Controller (MC), which is enforcing authentication to Aruba ClearPass Policy Manager (CPPM). The authentication is not working correctly, and you find the error shown In the exhibit in the CPPM Event Viewer.
What should you check?
- A. that the MC has valid admin credentials configured on it for logging into the CPPM
- B. that the IP address that the MC is using to reach CPPM matches the one defined for the device on CPPM
- C. that the snared secret configured for the CPPM authentication server matches the one defined for the device on CPPM
- D. that the MC has been added as a domain machine on the Active Directory domain with which CPPM is synchronized
Answer: B
NEW QUESTION # 24
What are some functions of an AruDaOS user role?
- A. The role determines which authentication methods the user must pass to gain network access
- B. The role determines which control plane ACL rules apply to the client's traffic
- C. The role determines which wireless networks (SSiDs) a user is permitted to access
- D. The role determines which firewall policies and bandwidth contract apply to the clients traffic
Answer: A
NEW QUESTION # 25
What is a benefit of Opportunistic Wireless Encryption (OWE)?
- A. It allows anyone lo connect, but provides better protection against eavesdropping than a traditional open network
- B. It offers more control over who can connect to the wireless network when compared with WPA2-Personal
- C. It provides protection for wireless clients against both honeypot APs and man-in-the-middle (MUM) attacks
- D. It allows both WPA2-capabie and WPA3-capable clients to authenticate to the same WPA-Personal WLAN
Answer: A
Explanation:
The benefit of Opportunistic Wireless Encryption (OWE) is that it allows anyone to connect, but it provides better protection against eavesdropping than a traditional open network. OWE is a type of wireless security specified in the WPA3 standard that offers encrypted communication without the complexity of a full authentication process, thereby securing data on networks that would otherwise be open and unencrypted.
References:
Wi-Fi Alliance specifications for WPA3 and Opportunistic Wireless Encryption (OWE).
Security whitepapers and industry articles discussing the advantages of WPA3, including OWE.
NEW QUESTION # 26
Refer to the exhibit.
This company has ArubaOS-Switches. The exhibit shows one access layer switch, Swllcn-2. as an example, but the campus actually has more switches. The company wants to slop any internal users from exploiting ARP What Is the proper way to configure the switches to meet these requirements?
- A. On Switch-1, enable ARP protection globally, and enable ARP protection on ail VLANs.
- B. On Swltch-2, enable DHCP snooping globally and on VLAN 201 before enabling ARP protection
- C. On Switch-2, make ports connected to employee devices trusted ports for ARP protection
- D. On Swltch-2, configure static PP-to-MAC bindings for all end-user devices on the network
Answer: B
Explanation:
To prevent users from exploiting Address Resolution Protocol (ARP) on a network with ArubaOS-Switches, the correct approach would be to enable DHCP snooping globally and on VLAN 201 before enabling ARP protection, as stated in option C. DHCP snooping acts as a foundation by tracking and securing the association of IP addresses to MAC addresses. This allows ARP protection to function effectively by ensuring that only valid ARP requests and responses are processed, thus preventing ARP spoofing attacks.
Trusting ports that connect to employee devices directly could lead to bypassing ARP protection if those devices are compromised.
The company's goal is to prevent internal users from exploiting ARP within their ArubaOS-Switch network.
Let's break down the options:
Option A (Incorrect): Enabling ARP protection globally on Switch-1 and all VLANs is not the best approach. ARP protection should be selectively applied where needed, not globally. It's also not clear why Switch-1 is mentioned when the exhibit focuses on Switch-2.
Option B (Incorrect): Making ports connected to employee devices trusted for ARP protection is a good practice, but it's not sufficient by itself. Trusted ports allow ARP traffic, but we need an additional layer of security.
Option C (Correct): This is the recommended approach. Here's why:
DHCP Snooping: First, enable DHCP snooping globally. DHCP snooping helps validate DHCP messages and builds an IP-MAC binding table. This table is crucial for ARP protection to function effectively.
VLAN 201: Enable DHCP snooping specifically on VLAN 201 (as shown in the exhibit). This ensures that DHCP messages within this VLAN are validated.
ARP Protection: Once DHCP snooping is in place, enable ARP protection. ARP requests/replies from untrusted ports with invalid IP-to-MAC bindings will be dropped. This prevents internal users from exploiting ARP for attacks like man-in-the-middle.
Option D (Incorrect): While static ARP bindings can enhance security, they are cumbersome to manage and don't dynamically adapt to changes in the network.
References:
ArubaOS-Switch Management and Configuration Guide for WB_16_10 - Chapter 15: IP Routing Features Aruba Security Guide
NEW QUESTION # 27
What is a vulnerability of an unauthenticated Dime-Heliman exchange?
- A. Participants must agree on a passphrase in advance, which can limit the usefulness of Diffie- Hell man in practical contexts.
- B. A brute force attack can relatively quickly derive Diffie-Hellman private values if they are able to obtain public values
- C. A hacker can replace the public values exchanged by the legitimate peers and launch an MITM attack.
- D. Diffie-Hellman with elliptic curve values is no longer considered secure in modem networks, based on NIST recommendations.
Answer: C
Explanation:
The vulnerability of an unauthenticated Diffie-Hellman exchange, particularly when it comes to the risk of a man-in-the-middle (MITM) attack, is a significant concern. In this scenario, a hacker can intercept the public values exchanged between two legitimate parties and substitute them with their own. This allows the attacker to decrypt or manipulate the messages passing between the two original parties without them knowing. This answer is based on the fundamental principles of how Diffie-Hellman key exchange works and its vulnerabilities without authentication mechanisms. Reference materials from cryptographic textbooks and security protocols detail these vulnerabilities, such as those found in standards and publications by organizations like NIST.
NEW QUESTION # 28
What is a difference between radius and TACACS+?
- A. RADIUS combines the authentication and authorization process while TACACS+ separates them.
- B. RADIUS uses TCP for Its connection protocol, while TACACS+ uses UDP tor its connection protocol.
- C. RADIUS encrypts the complete packet, white TACACS+ only offers partial encryption.
- D. RADIUS uses Attribute Value Pairs (AVPs) in its messages, while TACACS+ does not use them.
Answer: A
Explanation:
RADIUS and TACACS+ are both protocols used for networking authentication, but they handle the processes of authentication and authorization differently. RADIUS (Remote Authentication Dial-In User Service) combines authentication and authorization into a single process, whereas TACACS+ (Terminal Access Controller Access-Control System Plus) separates these processes. This separation in TACACS+ allows more flexible policy enforcement and better control over commands a user can execute. This difference is well-documented in various network security resources, including Cisco's technical documentation and security protocol manuals.
NEW QUESTION # 29
A company has an ArubaOS controller-based solution with a WPA3-Enterprise WLAN. which authenticates wireless clients to Aruba ClearPass Policy Manager (CPPM). The company has decided to use digital certificates for authentication A user's Windows domain computer has had certificates installed on it However, the Networks and Connections window shows that authentication has tailed for the user. The Mobility Controllers (MC's) RADIUS events show that it is receiving Access-Rejects for the authentication attempt.
What is one place that you can you look for deeper insight into why this authentication attempt is failing?
- A. the packets captured on the MC control plane destined to UDP 1812
- B. the Alerts tab in the authentication record in CPPM Access Tracker
- C. the RADIUS events within the CPPM Event Viewer
- D. the reports generated by Aruba ClearPass Insight
Answer: B
NEW QUESTION # 30 
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 originally assigned the client to a role for non-profiled devices. It sent a CoA to the authenticator after it categorized the device.
- C. 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.
- D. CPPM sent a CoA message to the client to prompt the client to submit information that CPPM can use to profile it.
Answer: B
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 # 31
How can hackers implement a man-in-the-middle (MITM) attack against a wireless client?
- A. The hacker runs an NMap scan on the wireless client to find its MAC and IP address. The hacker then connects to another network and spoofs those addresses.
- B. The hacker connects a device to the same wireless network as the client and responds to the client's ARP requests with the hacker device's MAC address.
- C. The hacker uses a combination of software and hardware to jam the RF band and prevent the client from connecting to any wireless networks.
- D. The hacker uses spear-phishing to probe for the IP addresses that the client is attempting to reach. The hacker device then spoofs those IP addresses.
Answer: B
Explanation:
A common method for hackers to perform a man-in-the-middle (MITM) attack on a wireless network is by ARP poisoning. The attacker connects to the same network as the victim and sends false ARP messages over the network. This causes the victim's device to send traffic to the attacker's machine instead of the legitimate destination, allowing the attacker to intercept the traffic.
NEW QUESTION # 32
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 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 has been detected using multiple MAC addresses. This indicates that the AP is spoofing its MAC address, which qualifies it as a suspected rogue.
- C. 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.
- 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:
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 # 33
The monitoring admin has asked you to set up an ArubaOS-Switch to meet these criteria:
* Send logs to a SIEM Syslog server at 10.4.13.15 at the standard UDP port (514)
* Send a log for all events at the "warning" level or above
The switch did not have any "logging" configuration on it. You then entered this command:
ArubaOS-Switch(config)# logging 10.4.13.15 udp
What should you do to finish configuring to the requirements?
- A. Configure logging as a debug destination.
- B. Specify "warning" as the global level.
- C. Add categories (system-modules) at the global level.
- D. Ask for the Syslog password and configure it on the switch.
Answer: B
Explanation:
To set up an ArubaOS-Switch to send logs to a SIEM syslog server at the specified criteria, you would need to specify the level of events that should be logged. Since the requirement is to log all events at the "warning" level or above, you should specify the syslog level after the logging server IP and port. The command should look like this:
ArubaOS-Switch(config)# logging 10.4.13.15 ArubaOS-Switch(config)# logging trap warning This would set up the switch to send logs to the syslog server at the IP address 10.4.13.15 using the default UDP port (514), for all events at the "warning" level or above.
NEW QUESTION # 34
What is a difference between radius and TACACS+?
- A. RADIUS combines the authentication and authorization process while TACACS+ separates them.
- B. RADIUS uses TCP for Its connection protocol, while TACACS+ uses UDP tor its connection protocol.
- C. RADIUS encrypts the complete packet, white TACACS+ only offers partial encryption.
- D. RADIUS uses Attribute Value Pairs (AVPs) in its messages, while TACACS+ does not use them.
Answer: A
NEW QUESTION # 35
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. You should receive permission before containing an AP. as this action could have legal Implications.
- 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. There is no need to locate the AP If the Aruba solution is properly configured to automatically contain it.
- E. This is a serious security event, so you should always contain the AP immediately regardless of your company's specific policies.
Answer: B,C
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.
References:
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 # 36
What is the purpose of an Enrollment over Secure Transport (EST) server?
- A. It provides a secure central repository for private keys associated with devices' digital certif-icates.
- B. It provides a more secure alternative to private CAs at less cost than a public CA.
- C. It helps admins to avoid expired certificates with less management effort.
- D. It acts as an intermediate Certification Authority (CA) that signs end-entity certificates.
Answer: C
Explanation:
EST (Enrollment over Secure Transport) is a protocol designed to streamline the certificate management process. It enables automated and secure enrollment, renewal, and revocation of digital certificates, which significantly reduces the management overhead typically associated with digital certificates. With EST, administrators can more easily manage certificates' lifecycle, ensuring that expired certificates are promptly replaced or renewed without significant manual intervention.
NEW QUESTION # 37
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HP HPE6-A78 (Aruba Certified Network Security Associate) Exam is an essential certification for individuals who are interested in pursuing a career in network security. It can help individuals develop the skills and knowledge needed to secure networks and mitigate threats, which is crucial in today's constantly evolving digital landscape.
HP HPE6-A78 certification exam covers a wide range of topics, including wireless security, cryptography, VPN technologies, network infrastructure security, and access control. HPE6-A78 exam is designed to test the candidate's ability to identify security risks, design secure wireless networks, and implement appropriate security controls to protect the network and its users. Passing this certification test proves that a candidate has the skills and knowledge necessary to secure Aruba wireless networks.
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