HPE6-A78試験問題集を使って一日でAruba ACNSA試験合格目指す（最新の110解答)
HPE6-A78試験正確な問題集、学習ノートと理論
この試験は、ネットワークセキュリティの基礎、ワイヤレスセキュリティ、ファイアウォール技術、侵入防止、VPN技術、およびネットワークアクセス制御を含む幅広いトピックを扱います。この認定により、候補者は安全なネットワークインフラストラクチャを設計、実装、および管理する能力を証明できます。また、認定は、潜在的な雇用主に自分のスキルと知識をアピールするための素晴らしい方法であり、高収入のネットワークセキュリティのポジションに採用される可能性を高めることができます。
質問 # 53
What is a difference between radius and TACACS+?
- A. RADIUS uses TCP for Its connection protocol, while TACACS+ uses UDP tor its connection protocol.
- 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 encrypts the complete packet, white TACACS+ only offers partial encryption.
正解：C
質問 # 54
What is one benefit of enabling Enhanced Secure mode on an ArubaOS-Switch?
- A. Insecure algorithms for protocol such as SSH are automatically disabled.
- B. All interfaces have 802.1X authentication enabled on them by default.
- C. A self-signed certificate is automatically added to the switch trusted platform module (TPM).
- D. Control Plane policing rate limits edge ports to mitigate DoS attacks on network servers.
正解：A
解説：
In the context of ArubaOS-Switches, enabling Enhanced Secure mode has several benefits, one of which includes disabling insecure algorithms for protocols such as SSH. This is in line with security best practices, as older, less secure algorithms are known to be vulnerable to various types of cryptographic attacks. When Enhanced Secure mode is enabled, the switch automatically restricts the use of such algorithms, thereby enhancing the security of management access.
質問 # 55
You are configuring ArubaOS-CX switches to tunnel client traffic to an Aruba Mobility Controller (MC).
What should you do to enhance security for control channel communications between the switches and the MC?
- A. Make sure that the UBT client vlan is assigned to the interface on which the switches reach the MC and only that interface.
- B. Create one UBT zone for control traffic and a second UBT zone for clients.
- C. install certificates on the switches, and make sure that CPsec is enabled on the MC
- D. Configure a long, random PAPI security key that matches on the switches and the MC.
正解：C
質問 # 56
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 Alerts tab in the authentication record in CPPM Access Tracker
- B. the reports generated by Aruba ClearPass Insight
- C. the RADIUS events within the CPPM Event Viewer
- D. the packets captured on the MC control plane destined to UDP 1812
正解：C
解説：
When an authentication attempt for a user's Windows domain computer is failing on a WPA3-Enterprise WLAN and the Mobility Controller is receiving Access-Rejects, one place to look for deeper insight is the RADIUS events within the CPPM Event Viewer. ClearPass Policy Manager (CPPM) logs all RADIUS authentication events, and the Event Viewer would show detailed information about why a particular authentication attempt was rejected. This could include reasons such as incorrect credentials, expired certificates, or policy mismatches. The CPPM Event Viewer is an essential troubleshooting tool within ClearPass to diagnose authentication issues, as indicated in the ClearPass Policy Manager documentation.
質問 # 57
How should admins deal with vulnerabilities that they find in their systems?
- A. They should classify the vulnerability as malware. a DoS attack or a phishing attack.
- B. They should notify the security team as soon as possible that the network has already been breached.
- C. They should apply fixes, such as patches, to close the vulnerability before a hacker exploits it.
- D. They should add the vulnerability to their Common Vulnerabilities and Exposures (CVE).
正解：C
質問 # 58
What is an example or phishing?
- A. An attacker checks a user's password by using trying millions of potential passwords.
- B. An attacker sends TCP messages to many different ports to discover which ports are open.
- C. An attacker lures clients to connect to a software-based AP that is using a legitimate SSID.
- D. An attacker sends emails posing as a service team member to get users to disclose their passwords.
正解：D
解説：
Phishing is a type of social engineering attack where an attacker impersonates a trusted entity to deceive people into providing sensitive information, such as passwords or credit card numbers. An example of phishing is when an attacker sends emails posing as a service team member or a legitimate organization with the intention of getting users to disclose their passwords or other confidential information. These emails often contain links to fake websites that look remarkably similar to legitimate ones, tricking users into entering their details.References:
Cybersecurity guidelines on identifying and preventing phishing attacks.
質問 # 59
Which correctly describes a way to deploy certificates to end-user devices?
- A. ClearPass OnGuard can help to deploy certificates to end-user devices, whether or not they are members of a Windows domain
- B. ClearPass Onboard can help to deploy certificates to end-user devices, whether or not they are members of a Windows domain
- C. ClearPass Device Insight can automatically discover end-user devices and deploy the proper certificates to them
- D. in a Windows domain, domain group policy objects (GPOs) can automatically install computer, but not user certificates
正解：B
質問 # 60
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 school district wants to protect messages sent between RADIUS clients and servers over an untrusted network.
- C. A organization wants to strengthen the encryption used to protect RADIUS communications without increasing complexity.
- D. A corporation wants to implement EAP-TLS to authenticate wireless users at their main office.
正解：B
解説：
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.
質問 # 61
Refer to the exhibit.
A diem is connected to an ArubaOS Mobility Controller. The exhibit snows all Tour firewall rules that apply to this diem What correctly describes how the controller treats HTTPS packets to these two IP addresses, both of which are on the other side of the firewall
10.1 10.10
203.0.13.5
- A. it permits both of the packets
- B. It drops the packet to 10.1.10.10 and permits the packet to 203.0.13.5.
- C. It drops both of the packets
- D. It permits the packet to 10.1.10.10 and drops the packet to 203 0.13.5
正解：D
解説：
Referring to the exhibit, the ArubaOS Mobility Controller treats HTTPS packets based on the firewall rules applied to the client. The rule that allows svc-https service for destination IP range 10.1.0.0 255.255.0.0 would permit an HTTPS packet to 10.1.10.10 since this IP address falls within the specified range. There are no rules shown that would allow traffic to the IP address 203.0.13.5; hence, the packet to this address would be dropped.
References:
ArubaOS firewall configuration guides detailing how firewall rules are interpreted and applied to traffic.
Network security textbooks explaining firewall rule processing and packet filtering based on source and destination IP addresses.
質問 # 62
How can hackers implement a man-in-the-middle (MITM) attack against a wireless client?
- A. 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.
- 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 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 a combination of software and hardware to jam the RF band and prevent the client from connecting to any wireless networks.
正解：A
解説：
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.
質問 # 63
You have been asked to rind logs related to port authentication on an ArubaOS-CX switch for events logged in the past several hours But. you are having trouble searching through the logs What is one approach that you can take to find the relevant logs?
- A. Configure a logging Tiller for the "port-access" category, and apply that filter globally.
- B. Specify a logging facility that selects for "port-access" messages.
- C. Enable debugging for "portaccess" to move the relevant logs to a buffer.
- D. Add the "-C and *-c port-access" options to the "show logging" command.
正解：A
解説：
In ArubaOS-CX, managing and searching logs can be crucial for tracking and diagnosing issues related to network operations such as port authentication. To efficiently find logs related to port authentication, configuring a logging filter specifically for this category is highly effective.
Logging Filter Configuration: In ArubaOS-CX, you can configure logging filters to refine the logs that are collected and viewed. By setting up a filter for the "port-access" category, you focus the logging system to only capture and display entries related to port authentication events. This approach reduces the volume of log data to sift through, making it easier to identify relevant issues.
Global Application of Filter: Applying the filter globally ensures that all relevant log messages, regardless of their origin within the switch's modules or interfaces, are captured under the specified category. This global application is crucial for comprehensive monitoring across the entire device.
Alternative Options and Their Evaluation:
Option A: Adding "-C and *-c port-access" to the "show logging" command is not a standard command format in ArubaOS-CX for filtering logs directly through the show command.
Option C: Enabling debugging for "portaccess" indeed increases the detail of logs but primarily serves to provide real-time diagnostic information rather than filtering existing logs.
Option D: Specifying a logging facility focuses on routing logs to different destinations or subsystems and does not inherently filter by log category like port-access.
質問 # 64
Two wireless clients, client 1 and client 2, are connected to an ArubaOS Mobility Controller. Subnet
10.1.10.10/24 is a network of servers on the other side of the ArubaOS firewall. The exhibit shows all three firewall rules that apply to these clients.
Which traffic is permitted?
- A. an HTTPS request from client 1 to client 2 and an HTTPS request from client 2 to client 1
- B. an HTTPS request from client 1 to 10.1.10.10 and an HTTPS response from 10.1.10.10 to client 1
- C. an HTTPS request from client 1 to 10.1.10.10 and an HTTPS request from 10.1.10.11 to client 1
- D. an HTTPS request from 10.1.10.10 to client 1 and an HTTPS re-sponse from client 1 to 10.1.10.10
正解：B
解説：
Based on the exhibit showing the firewall rules, the following traffic is permitted:
Client 1 is allowed to send HTTPS traffic to any destination within the subnet 10.1.10.0/24 because there is a permit rule for the user to access svc-https to that subnet.
Responses to initiated connections are typically allowed by stateful firewalls; hence, an HTTPS response from 10.1.10.10 to client 1 is expected to be permitted even though it is not explicitly mentioned in the firewall rules (assuming the stateful nature of the firewall).
質問 # 65
What is a reason to set up a packet capture on an Aruba Mobility Controller (MC)?
- A. The security team believes that a wireless endpoint connected to the MC is launching an attack and wants to examine the traffic more closely.
- B. 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.
- 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 company wants to use ClearPass Policy Manager (CPPM) to profile devices and needs to receive HTTP User-Agent strings from the MC.
正解：B
質問 # 66
A company with 439 employees wants to deploy an open WLAN for guests. The company wants the experience to be as follows:
*Guests select the WLAN and connect without having to enter a password.
*Guests are redirected to a welcome web page and log in.
The company also wants to provide encryption for the network for devices that are capable. Which security options should you implement for the WLAN?
- A. WPA3-Personal and MAC-Auth
- B. Captive portal and Opportunistic Wireless Encryption (OWE) in transition mode
- C. Captive portal and WPA3-Personal
- D. Opportunistic Wireless Encryption (OWE) and WPA3-Personal
正解：B
解説：
Opportunistic Wireless Encryption (OWE) provides encrypted communications on open Wi-Fi networks, which addresses the company's desire to have encryption without requiring a password for guests. It can work in transition mode, which allows for the use of OWE by clients that support it, while still permitting legacy clients to connect without encryption. Combining this with a captive portal enables the desired welcome web page for guests to log in.
質問 # 67
What is social engineering?
- A. Hackers intercept traffic between two users, eavesdrop on their messages, and pretend to be one or both users.
- B. Hackers spoof the source IP address in their communications so they appear to be a legitimate user.
- C. Hackers use Artificial Intelligence (Al) to mimic a user's online behavior so they can infiltrate a network and launch an attack.
- D. Hackers use employees to circumvent network security and gather the information they need to launch an attack.
正解：D
解説：
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.
質問 # 68
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 use an Air Monitor (AM) to capture the packets in the air.
- 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 MC dataplane to obtain unencrypted traffic.
- D. You should capture the traffic on the AP, so that the capture is as close to the source as possible.
正解：A
解説：
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.
質問 # 69
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. This is a serious security event, so you should always contain the AP immediately regardless of your company's specific policies.
- E. There is no need to locate the AP If the Aruba solution is properly configured to automatically contain it.
正解：A、D
質問 # 70
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