[Jul 14, 2024] Latest Aruba ACNSA HPE6-A78 Actual Free Exam Questions
Aruba ACNSA HPE6-A78 Dumps Updated Practice Test and 110 unique questions
NEW QUESTION # 20
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 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 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.
- 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 # 21
What is social engineering?
- A. Hackers spoof the source IP address in their communications so they appear to be a legitimate user.
- B. Hackers use Artificial Intelligence (Al) to mimic a user's online behavior so they can infiltrate a network and launch an attack.
- C. Hackers use employees to circumvent network security and gather the information they need to launch an attack.
- D. Hackers intercept traffic between two users, eavesdrop on their messages, and pretend to be one or both users.
Answer: C
Explanation:
Social engineering in the context of network security refers to the techniques used by hackers to manipulate individuals into breaking normal security procedures and best practices to gain unauthorized access to systems, networks, or physical locations, or for financial gain. Hackers use various forms of deception to trick employees into handing over confidential or personal information that can be used for fraudulent purposes. This definition encompasses phishing attacks, pretexting, baiting, and other manipulative techniques designed to exploit human psychology. Unlike other hacking methods that rely on technical means, social engineering targets the human element of security. References to social engineering, its methods, and defense strategies are commonly found in security training manuals, cybersecurity awareness programs, and authoritative resources like those from the SANS Institute or cybersecurity agencies.
NEW QUESTION # 22
What is a difference between radius and TACACS+?
- A. RADIUS encrypts the complete packet, white TACACS+ only offers partial encryption.
- B. RADIUS uses Attribute Value Pairs (AVPs) in its messages, while TACACS+ does not use them.
- C. RADIUS combines the authentication and authorization process while TACACS+ separates them.
- D. RADIUS uses TCP for Its connection protocol, while TACACS+ uses UDP tor its connection protocol.
Answer: C
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 # 23
What is one of the roles of the network access server (NAS) in the AAA framewonx?
- A. It enforces access to network services and sends accounting information to the AAA server
- B. It determines which resources authenticated users are allowed to access and monitors each users session
- C. It negotiates with each user's device to determine which EAP method is used for authentication
- D. It authenticates legitimate users and uses policies to determine which resources each user is allowed to access.
Answer: D
NEW QUESTION # 24
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-2, make ports connected to employee devices trusted ports for ARP protection
- B. On Swltch-2, configure static PP-to-MAC bindings for all end-user devices on the network
- C. On Switch-1, enable ARP protection globally, and enable ARP protection on ail VLANs.
- D. On Swltch-2, enable DHCP snooping globally and on VLAN 201 before enabling ARP protection
Answer: D
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 # 25
You are deploying a new wireless solution with an Aruba Mobility Master (MM). Aruba Mobility Controllers (MCs), and campus APs (CAPs). The solution will include a WLAN that uses Tunnel for the forwarding mode and WPA3-Enterprise for the security option.
You have decided to assign the WLAN to VLAN 301, a new VLAN. A pair of core routing switches will act as the default router for wireless user traffic.
Which links need to carry VLAN 301?
- A. only links on the path between APs and the core routing switches
- B. only links between MC ports and the core routing switches
- C. only links on the path between APs and the MC
- D. only links in the campus LAN to ensure seamless roaming
Answer: B
Explanation:
In a wireless network deployment with Aruba Mobility Master (MM), Mobility Controllers (MCs), and Campus APs (CAPs), where a WLAN is configured to use Tunnel mode for forwarding, the user traffic is tunneled from the APs to the MCs. VLAN 301, which is assigned to the WLAN, must be present on the links from the MCs to the core routing switches because these switches act as the default router for the wireless user traffic. It is not necessary for the VLAN to be present on all campus LAN links or AP links, only between the MCs and the core routing switches where the routing for VLAN 301 will occur.
NEW QUESTION # 26
What is a consideration for using MAC authentication (MAC-Auth) to secure a wired or wireless connection?
- A. MAC-Auth can add a degree of security to an open WLAN by enabling the generation of a PMK to encrypt traffic.
- B. As a Layer 2 authentication method, MAC-Auth cannot be used to authenticate devices to an external authentication server.
- C. It is very easy for hackers to spoof their MAC addresses and get around MAC authentication.
- D. Headless devices, such as Internet of Things (loT) devices, must be configured in advance to support MAC-Auth.
Answer: C
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 # 27
What is a benefit or using network aliases in ArubaOS firewall policies?
- A. You can associate a reputation score with the network alias to create rules that filler traffic based on reputation rather than IP.
- B. You can use the aliases to conceal the true IP addresses of servers from potentially untrusted clients.
- 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 adjust the IP addresses in the aliases, and the rules using those aliases automatically update
Answer: A
NEW QUESTION # 28
Refer to the exhibit, which shows the current network topology.
You are deploying a new wireless solution with an Aruba Mobility Master (MM). Aruba Mobility Controllers (MCs). and campus APs (CAPs). The solution will Include a WLAN that uses Tunnel for the forwarding mode and Implements WPA3-Enterprise security What is a guideline for setting up the vlan for wireless devices connected to the WLAN?
- A. Assign the WLAN to a named VLAN which specified 100-150 as the range of IDs.
- B. Use wireless user roles to assign the devices to different VLANs in the 100-150 range
- C. Assign the WLAN to a single new VLAN which is dedicated to wireless users
- D. Use wireless user roles to assign the devices to a range of new vlan IDs.
Answer: B
NEW QUESTION # 29
What is a benefit or Protected Management Frames (PMF). sometimes called Management Frame Protection (MFP)?
- A. PMF ensures trial traffic between APs and Mobility Controllers (MCs) is encrypted.
- B. PMF protects clients from DoS attacks based on forged de-authentication frames
- C. PMF helps to protect APs and MCs from unauthorized management access by hackers.
- D. PMF prevents hackers from capturing the traffic between APs and Mobility Controllers.
Answer: C
NEW QUESTION # 30
What is a reason to set up a packet capture on an Aruba Mobility Controller (MC)?
- A. You want the MC to analyze wireless clients' traffic at a lower level, so that the ArubaOS firewall can control the traffic I based on application.
- B. The company wants to use ClearPass Policy Manager (CPPM) to profile devices and needs to receive HTTP User-Agent strings from the MC.
- C. You want the MC to analyze wireless clients' traffic at a lower level, so that the ArubaOS firewall can control Web traffic based on the destination URL.
- D. The security team believes that a wireless endpoint connected to the MC is launching an attack and wants to examine the traffic more closely.
Answer: A
NEW QUESTION # 31
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 a filter that you can apply to a defined Syslog server in order to filter events by subcategory
- B. Configuring the MC to generate logs for a particular event category and level, but only for a specific user or AP.
- C. Configuring the Syslog server settings for the server to which the MC forwards logs for a particular category and level
- D. Configuring the log facility and log format that the MC will use for forwarding logs to all Syslog servers
Answer: C
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 has been detected using multiple MAC addresses. This indicates that the AP is spoofing its MAC address, which qualifies it 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 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.
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 # 33
Your ArubaoS solution has detected a rogue AP with Wireless intrusion Prevention (WIP). Which information about the detected radio can best help you to locate the rogue device?
- A. the confidence level
- B. the match method
- C. the detecting devices
- D. the match type
Answer: C
Explanation:
When an ArubaOS solution detects a rogue AP with Wireless Intrusion Prevention (WIP), the most crucial information that can help locate the rogue device is the detecting devices. This is because the detecting devices can provide the physical location or the network topology context where the rogue AP has been detected1.
The detecting devices are typically the Air Monitors (AMs) or Access Points (APs) in the network that have identified the rogue AP's presence. These devices can provide information such as the signal strength and the direction from which the rogue AP's signals are being received. By triangulating this information from multiple detecting devices, it becomes possible to pinpoint the physical location of the rogue AP2.
Additionally, the detecting devices can log events and alerts that can be reviewed to understand the rogue AP's behavior, such as the channels it is operating on and the potential impact on the authorized wireless network1. This information is vital for network administrators to quickly and effectively respond to the threat posed by the rogue AP.
In contrast, the match method (A) and match type relate to how the rogue AP is classified and identified by the system, which is useful for classification but not for physical location. The confidence level (D) indicates the system's certainty in the classification but does not aid in locating the device2.
NEW QUESTION # 34
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. Verify that the MC has the correct certificates, and add RadSec to the RADIUS server configuration for CPPM
- B. 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
- C. Create a local admin account mat uses certificates in the account, specify the correct trusted CA certificate and external authentication
- D. install all of the managers' certificates on the MC as OCSP Responder certificates
Answer: A
NEW QUESTION # 35
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 Swltch-2, enable DHCP snooping globally and on VLAN 201 before enabling ARP protection
- B. On Swltch-2, configure static PP-to-MAC bindings for all end-user devices on the network
- C. On Switch-2, make ports connected to employee devices trusted ports for ARP protection
- D. On Switch-1, enable ARP protection globally, and enable ARP protection on ail VLANs.
Answer: B
NEW QUESTION # 36
What is a benefit of Opportunistic Wireless Encryption (OWE)?
- A. It provides protection for wireless clients against both honeypot APs and man-in-the-middle (MUM) attacks
- B. It allows both WPA2-capabie and WPA3-capable clients to authenticate to the same WPA-Personal WLAN
- C. It offers more control over who can connect to the wireless network when compared with WPA2-Personal
- D. It allows anyone lo connect, but provides better protection against eavesdropping than a traditional open network
Answer: D
NEW QUESTION # 37
What is a guideline for deploying Aruba ClearPass Device Insight?
- A. Make sure that Aruba devices trust the root CA certificate for the ClearPass Device Insight Analyzer's HTTPS certificate.
- B. Configure remote mirroring on access layer Aruba switches, using Device Insight Analyzer as the destination IP.
- C. For companies with multiple sites, deploy a pair of Device Insight Collectors at the HQ or the central data center.
- D. Deploy a Device Insight Collector at every site in the corporate WAN to reduce the impact on WAN links.
Answer: C
Explanation:
For deploying Aruba ClearPass Device Insight effectively, especially in environments with multiple sites, it is recommended to deploy a pair of Device Insight Collectors at the headquarters or the central data center.
This deployment strategy helps in centralizing the data collection and analysis, which simplifies management and enhances performance by reducing the data load on the WAN links connecting different sites.
Centralizing the collectors at a major site or data center allows for better scalability and reliability of the network management system. This configuration also aids in achieving a more consistent and comprehensive monitoring and analysis of the devices across the network, ensuring that the security and management policies are uniformly applied. This recommendation is based on best practices for network architecture design, particularly those discussed in Aruba's deployment guides and network management strategies.
NEW QUESTION # 38
What is one benefit of a Trusted Platform Module (TPM) on an Aruba AP?
- A. It deploys the AP with enhanced security, which includes disabling the password recovery mechanism.
- B. It allows the AP to run in secure mode, which automatically enables CPsec and disables the console port.
- C. It enables secure boot, which detects if hackers corrupt the OS with malware.
- D. It enables the AP to encrypt and decrypt 802.11 traffic locally, rather than at the MC.
Answer: C
Explanation:
The TPM (Trusted Platform Module) is a hardware-based security feature that can provide various security functions, one of which includes secure boot. Secure boot is a process where the TPM ensures that the device boots using only software that is trusted by the manufacturer. If the OS has been tampered with or infected with malware, the secure boot process can detect this and prevent the system from loading the compromised OS.
NEW QUESTION # 39
Device A is contacting https://arubapedia.arubanetworks.com. The web server sends a certificate chain. What does the browser do as part of validating the web server certificate?
- A. It makes sure that the public key in the certificate matches DeviceA's private HTTPS key.
- B. It makes sure that the key in the certificate matches the key that DeviceA uses for HTTPS.
- C. It makes sure the certificate has a DNS SAN that matches arubapedia.arubanetworks.com
- D. It makes sure that the public key in the certificate matches a private key stored on DeviceA.
Answer: C
Explanation:
When a device like Device A contacts a secure website and receives a certificate chain from the server, the browser's primary task is to validate the web server's certificate to ensure it is trustworthy. Part of this validation includes checking that the certificate contains a DNS Subject Alternative Name (SAN) that matches the domain name of the website being accessed-in this case, arubapedia.arubanetworks.com. This ensures that the certificate was indeed issued to the entity operating the domain and helps prevent man-in-the-middle attacks where an invalid certificate could be presented by an attacker. The DNS SAN check is critical because it directly ties the digital certificate to the domain it secures, confirming the authenticity of the website to the user's browser.
NEW QUESTION # 40
What is a use case for implementing RadSec instead of RADIUS?
- A. A university wants to protect communications between the students' devices and the network access server.
- B. A organization wants to strengthen the encryption used to protect RADIUS communications without increasing complexity.
- C. A school district wants to protect messages sent between RADIUS clients and servers over an untrusted network.
- D. A corporation wants to implement EAP-TLS to authenticate wireless users at their main office.
Answer: C
Explanation:
RadSec (RADIUS over TLS) is a protocol for transporting RADIUS messages over TLS-encrypted TCP/IP networks. The primary use case for implementing RadSec instead of traditional RADIUS is to protect RADIUS communications, particularly when those messages must travel across an untrusted network, such as the internet. RadSec provides confidentiality, integrity, and authentication for RADIUS traffic between clients and servers which may not be within a single secure network. In the case of a school district that wants to ensure the security of messages sent between RADIUS clients and servers over potentially insecure networks, RadSec would be the appropriate choice.
NEW QUESTION # 41
You are deploying an Aruba Mobility Controller (MC). What is a best practice for setting up secure management access to the ArubaOS Web UP
- A. Make sure to enable HTTPS for the Web UI and select the self-signed certificate Installed in the factory.
- B. Avoid using external manager authentication tor the Web UI.
- C. Install a CA-signed certificate to use for the Web UI server certificate.
- D. Change the default 4343 port tor the web UI to TCP 443.
Answer: C
NEW QUESTION # 42
You have detected a Rogue AP using the Security Dashboard Which two actions should you take in responding to this event? (Select two)
- A. 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.
- B. There is no need to locale the AP If you manually contain It.
- C. You should receive permission before containing an AP. as this action could have legal Implications.
- 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: A,E
NEW QUESTION # 43 
What is another setting that you must configure on the switch to meet these requirements?
- A. Create port-access roles with the same names of the roles that CPPM will send in Aruba-Admin-Role VSAs.
- B. Set the aaa authentication login method for SSH to the "radius" server-group (with local as backup).
- C. Configure a CPPM username and password that match a CPPM admin account.
- D. Disable SSH on the default VRF and enable it on the mgmt VRF instead.
Answer: B
Explanation:
To meet the requirements for configuring an ArubaOS-CX switch for integration with ClearPass Policy Manager (CPPM), it is necessary to set the AAA authentication login method for SSH to use the "radius" server-group, with "local" as a backup. This ensures that when an admin attempts to SSH into the switch, the authentication request is first sent to CPPM via RADIUS. If CPPM is unavailable, the switch will fall back to using local authentication12.
Here's why the other options are not correct:
Option B is incorrect because configuring a CPPM username and password on the switch that matches a CPPM admin account is not required for SSH login; rather, the switch needs to be configured to communicate with CPPM for authentication.
Option C is incorrect because while CPPM will send Aruba-Admin-Role Vendor-Specific Attributes (VSAs), the switch does not need to have port-access roles created with the same names; it needs to interpret the VSA to assign the correct role.
Option D is incorrect because disabling SSH on the default VRF and enabling it on the mgmt VRF is not related to the authentication process with CPPM.
Therefore, the correct answer is A, as setting the AAA authentication login method for SSH to the "radius" server-group with "local" as backup is a key step in ensuring that the switch can authenticate admins through CPPM while providing a fallback method12.
NEW QUESTION # 44
Your Aruba Mobility Master-based solution has detected a rogue AP Among other information the ArubaOS Detected Radios page lists this Information for the AP SSID = PubllcWiFI BSSID = a8M27 12 34:56 Match method = Exact match Match type = Eth-GW-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 spoofing a routers MAC address as its BSSID. This indicates mat, even though WIP cannot determine whether the AP is connected to your LAN. it is a rogue.
- B. The ap has a BSSID mat matches authorized client MAC addresses. This indicates that the AP is spoofing the MAC address to gam unauthorized access to your company's wireless services, so It is a rogue
- C. The AP Is connected to your LAN because It is transmitting wireless traffic with your network's default gateway's MAC address as a source MAC Because it does not belong to the company, it is a rogue
- D. The AP has been detected as launching a DoS attack against your company's default gateway. This qualities it as a rogue which needs to be contained with wireless association frames immediately
Answer: C
Explanation:
The AP is classified as a rogue because it is connected to your LAN and is transmitting wireless traffic with your network's default gateway's MAC address as a source MAC. In this scenario, the 'Match method = Exact match' and 'Match type = Eth-GW-wired-Mac-Table' indicates that the rogue AP has been detected by matching the Ethernet gateway's MAC address, which is on the wired network, implying that the rogue AP is connected to the corporate LAN. Since the AP does not belong to the company, its presence on the network is unauthorized and is thus classified as a rogue AP.
References:
ArubaOS documentation on rogue AP detection and classification.
Wireless security best practices that explain how the presence of unauthorized APs on the LAN constitutes a security threat.
NEW QUESTION # 45
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