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Real HP HPE6-A78 Exam Questions with Accurate Answers

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HPE6-A78 certification exam is designed for IT professionals who plan to work with Aruba networking and security products. HPE6-A78 Exam is intended to validate the skills and knowledge of candidates in designing and implementing secure network solutions using Aruba products. Aruba Certified Network Security Associate Exam certification exam also tests the candidate's ability to troubleshoot and optimize network performance.

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HPE6-A78 certification exam is a comprehensive test of an individual's knowledge and skills in network security. It is designed to test an individual's ability to design secure wireless networks, configure and troubleshoot network security solutions, and implement policies for securing wireless networks. Aruba Certified Network Security Associate Exam certification provides IT professionals with a credential that demonstrates their expertise and commitment to network security, which is highly valued by employers in today's competitive job market.

HP Aruba Certified Network Security Associate Exam Sample Questions (Q137-Q142):

NEW QUESTION # 137
How can hackers implement a man-in-the-middle (MITM) attack against a wireless client?

A. The hacker uses a combination of software and hardware to jam the RF band and prevent the client from connecting to any wireless networks.
B. 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.
C. 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.
D. 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.

Answer: C

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.
Reference:
Please note that the answers provided are based on general networking and security principles and best practices. If you require verification against specific Aruba product documentation or technical manuals, those documents should be consulted directly.

NEW QUESTION # 138
How does the ArubaOS firewall determine which rules to apply to a specific client's traffic?

A. The firewall applies every rule that includes the client's IP address as the source or destination.
B. The firewall applies every rule that includes the dent's IP address as the source.
C. The firewall applies the rules in policies associated with the client's wlan
D. The firewall applies thee rules in policies associated with the client's user role.

Answer: D

Explanation:
The ArubaOS firewall determines which rules to apply to a specific client's traffic based on the rules in policies associated with the client's user role. User roles are a fundamental part of ArubaOS and the firewall policies they encompass. These roles contain policies that dictate permissions and restrictions for network traffic. When a client authenticates, it is assigned a role, and the firewall enforces the rules defined within that role for the client's traffic.
:
ArubaOS firewall and user role configuration guides that explain the role-based access control and firewall policy enforcement.
Industry best practices for network access control that advocate for role-based enforcement mechanisms.

NEW QUESTION # 139
A client has accessed an HTTPS server at myhost1.example.com using Chrome. The server sends a certificate that includes these properties:
Subject name: myhost.example.com
SAN: DNS: myhost.example.com; DNS: myhost1.example.com
Extended Key Usage (EKU): Server authentication
Issuer: MyCA_Signing
The server also sends an intermediate CA certificate for MyCA_Signing, which is signed by MyCA. The client's Trusted CA Certificate list does not include the MyCA or MyCA_Signing certificates.
Which factor or factors prevent the client from trusting the certificate?

A. The certificate lacks a valid SAN, and the client does not have the correct trusted CA certificates.
B. The certificate lacks a valid SAN.
C. The certificate lacks the correct EKU.
D. The client does not have the correct trusted CA certificates.

Answer: D

Explanation:
This question is identical to Question 17, with the same certificate properties and scenario. The client (Chrome browser) accesses an HTTPS server at myhost1.example.com, and the server presents a certificate with:
Subject name: myhost.example.com
SAN: DNS: myhost.example.com; DNS: myhost1.example.com
EKU: Server authentication
Issuer: MyCA_Signing (intermediate CA)
The intermediate CA certificate (MyCA_Signing) is signed by MyCA (root CA).
The client's Trusted CA Certificate list does not include MyCA or MyCA_Signing.
The certificate validation process is the same as in Question 17:
Name Validation: The SAN includes "myhost1.example.com," which matches the server's hostname, so this passes.
EKU Validation: The EKU is "Server authentication," which is correct for HTTPS, so this passes.
Chain of Trust Validation: The client attempts to build a chain from the server's certificate to a trusted root CA:
Server certificate → MyCA_Signing → MyCA Since MyCA is not in the client's Trusted CA Certificate list, the chain cannot be validated, and the client does not trust the certificate.
Option A, "The client does not have the correct trusted CA certificates," is correct. The absence of MyCA in the client's trust store prevents the client from validating the certificate chain.
Option B, "The certificate lacks a valid SAN," is incorrect because the SAN includes "myhost1.example.com," which is valid.
Option C, "The certificate lacks the correct EKU," is incorrect because the EKU is correctly set to "Server authentication." Option D, "The certificate lacks a valid SAN, and the client does not have the correct trusted CA certificates," is incorrect because the SAN is valid; the only issue is the missing trusted CA certificates.
The HPE Aruba Networking AOS-CX 10.12 Security Guide states:
"For a client to trust a server's certificate during HTTPS communication, the client must validate the certificate chain to a trusted root CA in its trust store. If the root CA (e.g., MyCA) or intermediate CA (e.g., MyCA_Signing) is not in the client's Trusted CA Certificate list, the chain of trust cannot be established, and the client will reject the certificate. The Subject Alternative Name (SAN) must include the server's hostname, and the Extended Key Usage (EKU) must include 'Server authentication' for HTTPS." (Page 205, Certificate Validation Section) Additionally, the HPE Aruba Networking Security Fundamentals Guide notes:
"A common reason for certificate validation failure is the absence of the root CA certificate in the client's trust store. For example, if a server's certificate is issued by an intermediate CA (e.g., MyCA_Signing) that chains to a root CA (e.g., MyCA), the client must have the root CA certificate in its Trusted CA Certificate list to trust the chain." (Page 45, Certificate Trust Issues Section)
:
HPE Aruba Networking AOS-CX 10.12 Security Guide, Certificate Validation Section, Page 205.
HPE Aruba Networking Security Fundamentals Guide, Certificate Trust Issues Section, Page 45.

NEW QUESTION # 140
You are setting up an Aruba mobility solution which includes a Mobility Master (MM), Mobility Controllers (MCs), and campus APs (CAPs) for a university. The university plans to enforce WPA2-Enterprise for all users' connections. The university wants to apply one set of access control rules to faculty users' traffic and a different set of rules to students' traffic.
What is the best approach for applying the correct rules to each group?

A. Create two roles, a "faculty" role and a "student" role. Apply firewall policies with the correct rules for each group to each role.
B. Create two VLANs, one for faculty and one for students. Create one set of firewall access control rules that specify faculty IP addresses for the source and a second set of rules that specify the student IP addresses for the source. Apply the rules to the WLAN.
C. Create two WLANs, one for faculty and one for students. Apply firewall policies with the correct rules for each group to each WLAN.
D. Create two VLANs, one for faculty and one for students. Apply firewall policies with the correct rules for each group to each VLAN.

Answer: A

Explanation:
To differentiate access control for faculty and students, the best approach is to use roles. By creating two roles - "faculty" and "student" - and applying the appropriate firewall policies to each, the university can enforce different access rules for each group. This is more efficient than managing multiple VLANs or WLANs because it allows for role-based access control, which is directly tied to user identity rather than just IP addresses or the network they are connected to.

NEW QUESTION # 141
What is a consideration for using MAC authentication (MAC-Auth) to secure a wired or wireless connection?

A. Headless devices, such as Internet of Things (loT) devices, must be configured in advance to support MAC-Auth.
B. It is very easy for hackers to spoof their MAC addresses and get around MAC authentication.
C. MAC-Auth can add a degree of security to an open WLAN by enabling the generation of a PMK to encrypt traffic.
D. As a Layer 2 authentication method, MAC-Auth cannot be used to authenticate devices to an external authentication server.

Answer: B

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 # 142
......

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