Get Ready to Boost your Prepare for your HPE6-A78 Exam with 170 Questions [Q66-Q84]

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Get Ready to Boost your Prepare for your HPE6-A78 Exam with 170 Questions

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The HP HPE6-A78 exam is designed for individuals who are just starting their careers in network security or those who wish to improve their knowledge of the field. It covers a wide range of topics, including network security fundamentals, secure network design and configuration, and threat mitigation techniques. HPE6-A78 exam is composed of 60 multiple-choice questions, which must be answered within 90 minutes.


HPE6-A78 exam consists of 60 multiple-choice questions that must be completed in 90 minutes. HPE6-A78 exam covers a range of topics, including network security fundamentals, secure access, VPN technologies, firewall technologies, and network security management. To pass the exam, candidates must score at least 70%.


The HP HPE6-A78 exam is suitable for network administrators, security engineers, and other IT professionals who want to enhance their skills in network security. Aruba Certified Network Security Associate Exam certification is globally recognized, and it provides a pathway to higher-level certifications, such as the Aruba Certified Mobility Professional (ACMP) and the Aruba Certified Design Professional (ACDP). To prepare for the exam, candidates can take advantage of the Aruba training courses, study guides, and practice exams.

 

NEW QUESTION # 66
What is the purpose of an Enrollment over Secure Transport (EST) server?

  • A. It helps admins to avoid expired certificates with less management effort.
  • B. It provides a secure central repository for private keys associated with devices' digital certif-icates.
  • C. It provides a more secure alternative to private CAs at less cost than a public CA.
  • D. It acts as an intermediate Certification Authority (CA) that signs end-entity certificates.

Answer: A


NEW QUESTION # 67
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 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
  • B. 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
  • C. 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.
  • D. 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

Answer: B

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.
:
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 # 68
What are the roles of 802.1X authenticators and authentication servers?

  • A. The authenticator makes access decisions and the server communicates them to the supplicant.
  • B. The authenticator supports only EAP, while the authentication server supports only RADIUS.
  • C. The authenticator is a RADIUS client and the authentication server is a RADIUS server.
  • D. The authenticator stores the user account database, while the server stores access policies.

Answer: C

Explanation:
In the 802.1X network access control model, the roles of the authenticator and the authentication server are distinct yet complementary. The authenticator acts as a RADIUS client, which is a network device, like a switch or wireless access point, that directly interfaces with the client machine (supplicant). The authentication server, typically a RADIUS server, is responsible for verifying the credentials provided by the supplicant through the authenticator. This setup helps in separating the duties where the authenticator enforces authentication but does not decide on the validity of the credentials, which is the role of the authentication server.
:
IEEE 802.1X standard for network access control.


NEW QUESTION # 69
What is one difference between EAP-Tunneled Layer security (EAP-TLS) and Protected EAP (PEAP)?

  • A. EAP-TLS requires the supplicant to authenticate with a certificate, hut PEAP allows the supplicant to use a username and password.
  • B. EAP-TLS creates a TLS tunnel for transmitting user credentials securely while PEAP protects user credentials with TKIP encryption.
  • C. EAP-TLS begins with the establishment of a TLS tunnel, but PEAP does not use a TLS tunnel as part of Its process
  • D. EAP-TLS creates a TLS tunnel for transmitting user credentials, while PEAP authenticates the server and supplicant during a TLS handshake.

Answer: A

Explanation:
EAP-TLS and PEAP both provide secure authentication methods, but they differ in their requirements for client-side authentication. EAP-TLS requires both the client (supplicant) and the server to authenticate each other with certificates, thereby ensuring a very high level of security. On the other hand, PEAP requires a server-side certificate to create a secure tunnel and allows the client to authenticate using less stringent methods, such as a username and password, which are then protected by the tunnel. This makes PEAP more flexible in environments where client-side certificates are not feasible.
:
EAP-TLS and PEAP authentication protocols comparison.


NEW QUESTION # 70
Refer to the exhibit.

Device A is establishing an HTTPS session with the Arubapedia web sue using Chrome. The Arubapedia web server sends the certificate shown in the exhibit What does the browser do as part of vacating the web server certificate?

  • A. It uses the public key in the DigCert root CA certificate to check the certificate signature
  • B. It uses the private key in the DigiCert SHA2 Secure Server CA to check the certificate's signature.
  • C. It uses the private key in the Arubapedia web site's certificate to check that certificate's signature
  • D. It uses the public key in the DigCen SHA2 Secure Server CA certificate to check the certificate's signature.

Answer: D


NEW QUESTION # 71
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 match type
  • B. the confidence level
  • C. the match method
  • D. the detecting devices

Answer: D

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 # 72
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. Specify "warning" as the global level.
  • B. Add categories (system-modules) at the global level.
  • C. Configure logging as a debug destination.
  • D. Ask for the Syslog password and configure it on the switch.

Answer: A

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 # 73
What is a use case for tunneling traffic between an Aruba switch and an AruDa Mobility Controller (MC)?

  • A. enhancing the security of communications from the access layer to the core with data encryption
  • B. simplifying network infrastructure management by using the MC to push configurations to the switches
  • C. applying firewall policies and deep packet inspection to wired clients
  • D. securing the network infrastructure control plane by creating a virtual out-of-band-management network

Answer: D

Explanation:
Tunneling traffic between an Aruba switch and an Aruba Mobility Controller (MC) allows for the centralized application of firewall policies and deep packet inspection to wired clients. By directing traffic through the MC, network administrators can implement a consistent set of security policies across both wired and wireless segments of the network, enhancing overall network security posture.


NEW QUESTION # 74
Refer to the exhibit.

How can you use the thumbprint?

  • A. install this thumbprint on management stations the stations can then authenticate with the thumbprint instead of admins having to enter usernames and passwords.
  • B. 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
  • C. 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
  • D. 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

Answer: B

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 # 75
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 capture the traffic on the AP, so that the capture is as close to the source as possible.
  • C. You should mirror traffic from the switch port that connects to the AP out on a port connected to a packet analyzer.
  • 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 # 76
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. 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. MAC-Auth can add a degree of security to an open WLAN by enabling the generation of a PMK to encrypt traffic.

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 # 77
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 IP address that the MC is using to reach CPPM matches the one defined for the device on CPPM
  • B. that the MC has been added as a domain machine on the Active Directory domain with which CPPM is synchronized
  • 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 valid admin credentials configured on it for logging into the CPPM

Answer: A


NEW QUESTION # 78
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 # 79
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 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 uses a combination of software and hardware to jam the RF band and prevent the client from connecting to any wireless networks.

Answer: C

Explanation:
A man-in-the-middle (MITM) attack involves an attacker positioning themselves between a wireless client and the legitimate network to intercept or manipulate traffic. HPE Aruba Networking documentation often discusses MITM attacks in the context of wireless security threats and mitigation strategies.
Option D, "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," is correct. This describes an ARP poisoning (or ARP spoofing) attack, a common MITM technique in wireless networks. The hacker joins the same wireless network as the client (e.g., by authenticating with the same SSID and credentials). Once on the network, the hacker sends fake ARP responses to the client, associating the hacker's MAC address with the IP address of the default gateway (or another target device). This causes the client to send traffic to the hacker's device instead of the legitimate gateway, allowing the hacker to intercept, modify, or forward the traffic, thus performing an MITM attack.
Option 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," is incorrect. Jamming the RF band would disrupt all wireless communication, including the hacker's ability to intercept traffic. This is a denial-of-service (DoS) attack, not an MITM attack.
Option B, "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," is incorrect. NMap scans are used for network discovery and port scanning, not for implementing an MITM attack. Spoofing MAC and IP addresses on another network does not position the hacker to intercept the client's traffic on the original network.
Option C, "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," is incorrect. Spear-phishing is a delivery method for malware or credentials theft, not a direct method for implementing an MITM attack. Spoofing IP addresses alone does not allow the hacker to intercept traffic unless they are on the same network and can manipulate routing (e.g., via ARP poisoning).
The HPE Aruba Networking AOS-8 8.11 User Guide states:
"A common man-in-the-middle (MITM) attack against wireless clients involves ARP poisoning. The hacker connects a device to the same wireless network as the client and sends fake ARP responses to the client, associating the hacker's MAC address with the IP address of the default gateway. This causes the client to send traffic to the hacker's device, allowing the hacker to intercept and manipulate the traffic." (Page 422, Wireless Threats Section) Additionally, the HPE Aruba Networking Security Guide notes:
"ARP poisoning is a prevalent MITM attack in wireless networks. The attacker joins the same network as the client and responds to the client's ARP requests with the attacker's MAC address, redirecting traffic through the attacker's device. This allows the attacker to intercept sensitive data or modify traffic between the client and the legitimate destination." (Page 72, Wireless MITM Attacks Section)
:
HPE Aruba Networking AOS-8 8.11 User Guide, Wireless Threats Section, Page 422.
HPE Aruba Networking Security Guide, Wireless MITM Attacks Section, Page 72.


NEW QUESTION # 80
What purpose does an initialization vector (IV) serve for encryption?

  • A. It enables programs to convert easily-remembered passphrases to keys of a correct length.
  • B. It helps parties to negotiate the keys and algorithms used to secure data before data transmission.
  • C. It enables the conversion of asymmetric keys into keys that are suitable for symmetric encryption.
  • D. It makes encryption algorithms more secure by ensuring that same plaintext and key can produce different ciphertext.

Answer: D

Explanation:
The primary purpose of an Initialization Vector (IV) in encryption is to ensure that the same plaintext encrypted with the same encryption key will produce different ciphertext each time it is encrypted. This variability is crucial for securing repetitive data patterns and preventing certain types of cryptographic attacks, such as replay or pattern analysis attacks. The IV adds randomness to the encryption process, making it more secure by ensuring that encrypted messages are unique, even if the plaintext and key remain unchanged. This prevents attackers from deducing patterns or inferring any useful information from repeated ciphertext.


NEW QUESTION # 81
What distinguishes a Distributed Denial of Service (DDoS) attack from a traditional Denial of Service (DoS) attack?

  • A. A DDoS attack originates from external devices, while a DoS attack originates from internal devices.
  • B. A DoS attack targets one server; a DDoS attack targets all the clients that use a server.
  • C. A DDoS attack is launched from multiple devices, while a DoS attack is launched from a single device.
  • D. A DDoS attack targets multiple devices, while a DoS is designed to incapacitate only one device.

Answer: C

Explanation:
Denial of Service (DoS) and Distributed Denial of Service (DDoS) attacks are both designed to disrupt the availability of a network, service, or device by overwhelming it with traffic or requests. HPE Aruba Networking documentation, particularly in the context of Wireless Intrusion Prevention (WIP) and network security, often discusses these attacks to help administrators mitigate them.
DoS Attack: A DoS attack is launched from a single source (e.g., one device or IP address) and aims to overwhelm a target (e.g., a server, network, or device) with traffic, making it unavailable to legitimate users. For example, a DoS attack might flood a server with SYN packets to exhaust its resources.
DDoS Attack: A DDoS attack is a more sophisticated version of a DoS attack, where the attack is launched from multiple sources (e.g., a botnet of compromised devices). These sources work together to overwhelm the target, making the attack harder to mitigate because the traffic comes from many different IP addresses.
Option A, "A DDoS attack originates from external devices, while a DoS attack originates from internal devices," is incorrect. Both DoS and DDoS attacks can originate from external or internal devices. The distinction is not about the location of the devices but the number of sources involved.
Option B, "A DoS attack targets one server; a DDoS attack targets all the clients that use a server," is incorrect. Both DoS and DDoS attacks typically target a single entity (e.g., a server, network, or device) to disrupt its availability. They do not target "all the clients that use a server." Option C, "A DDoS attack targets multiple devices, while a DoS is designed to incapacitate only one device," is incorrect. Both DoS and DDoS attacks usually target a single device or service to overwhelm it. The difference lies in the source of the attack, not the number of targets.
Option D, "A DDoS attack is launched from multiple devices, while a DoS attack is launched from a single device," is correct. This is the primary distinction between the two: a DDoS attack involves multiple sources (e.g., a botnet), while a DoS attack originates from a single source.
The HPE Aruba Networking Security Guide states:
"A Denial of Service (DoS) attack is launched from a single device to overwhelm a target, such as a server or network, making it unavailable to legitimate users. A Distributed Denial of Service (DDoS) attack, in contrast, is launched from multiple devices, often a botnet of compromised systems, to flood the target with traffic from many sources, making it harder to mitigate." (Page 20, DoS and DDoS Attacks Section) Additionally, the HPE Aruba Networking AOS-8 8.11 User Guide notes:
"The Wireless Intrusion Prevention (WIP) system can detect DoS and DDoS attacks. A DoS attack originates from a single source, while a DDoS attack involves multiple sources working together to overwhelm the target, such as a server or network infrastructure." (Page 423, WIP Threat Detection Section)
:
HPE Aruba Networking Security Guide, DoS and DDoS Attacks Section, Page 20.
HPE Aruba Networking AOS-8 8.11 User Guide, WIP Threat Detection Section, Page 423.


NEW QUESTION # 82
You are checking the Security Dashboard in the Web Ul for your ArubaOS solution and see that Wireless Intrusion Prevention (WIP) has discovered a rogue radio operating in ad hoc mode with open security. What correctly describes a threat that the radio could pose?

  • A. It could be attempting to conceal itself from detection by changing its BSSID and SSID frequently.
  • B. It could open a backdoor into the corporate LAN for unauthorized users.
  • C. It is running in a non-standard 802.11 mode and could effectively jam the wireless signal.
  • D. It is flooding the air with many wireless frames in a likely attempt at a DoS attack.

Answer: B

Explanation:
A rogue radio operating in ad hoc mode with open security can pose several threats to a network. Ad hoc networks allow direct device-to-device communication without centralized control. If such a radio is present within or near a corporate environment, it can potentially be used to create a peer-to-peer network that bypasses corporate security controls, effectively acting as a backdoor into the corporate network for unauthorized users or devices. This can lead to a breach of data security and unauthorized access to network resources.


NEW QUESTION # 83
What is a use case for implementing RadSec instead of RADIUS?

  • A. A corporation wants to implement EAP-TLS to authenticate wireless users at their main office.
  • B. A university wants to protect communications between the students' devices and the network access server.
  • C. A school district wants to protect messages sent between RADIUS clients and servers over an untrusted network.
  • D. A organization wants to strengthen the encryption used to protect RADIUS communications without increasing complexity.

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 # 84
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