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調査によると、当社の高く評価されているXDR-Analystテスト問題の成功は、簡単に操作できる練習システムへの尽力によるものです。候補者から寄せられたフィードバックのほとんどは、XDR-Analystガイド急流が優れたプラクティスとシステムを実装し、より競争力のある新しい製品を発売する能力を強化していることを物語っています。 XDR-Analyst試験ダンプに伴い、Q＆Aはそれほど複雑ではありませんが、より重要な情報で受験者を教育します。これにより、XDR-Analyst試験に合格するための知識を深め、自己啓発を強化できます。
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すべての専門家は教育と経験を積んでいるため、XDR-Analystテスト準備教材で長年働いています。 XDR-Analystテストガイド教材を購入した場合、試験前に20〜30時間の学習を費やすだけで、XDR-Analyst試験に簡単に参加できます。試験に時間と精神を浪費する必要はありません。サービスについては、購入後10分以内に最新のXDR-Analyst認定ガイドを受け取ってダウンロードできる「高速配信」をサポートしています。そのため、XDR-Analyst試験ガイド資料を選択する際に心配する必要はありません。
質問 # 23
How can you pivot within a row to Causality view and Timeline views for further investigate?
正解：C
解説：
To pivot within a row to Causality view and Timeline views for further investigation, you can use the Open Card and Open Timeline actions respectively. The Open Card action will open a new tab with the Causality view of the selected row, showing the causal chain of events that led to the alert. The Open Timeline action will open a new tab with the Timeline view of the selected row, showing the chronological sequence of events that occurred on the affected endpoint. These actions allow you to drill down into the details of each alert and understand the root cause and impact of the incident. Reference:
Cortex XDR User Guide, Chapter 9: Investigate Alerts, Section: Pivot to Causality View and Timeline View PCDRA Study Guide, Section 3: Investigate and Respond to Alerts, Objective 3.1: Investigate alerts using the Causality view and Timeline view
質問 # 24
Live Terminal uses which type of protocol to communicate with the agent on the endpoint?
正解：C
解説：
Live Terminal uses the WebSocket protocol to communicate with the agent on the endpoint. WebSocket is a full-duplex communication protocol that enables bidirectional data exchange between a client and a server over a single TCP connection. WebSocket is designed to be implemented in web browsers and web servers, but it can be used by any client or server application. WebSocket provides a persistent connection between the Cortex XDR console and the endpoint, allowing you to execute commands and receive responses in real time. Live Terminal uses port 443 for WebSocket communication, which is the same port used for HTTPS traffic. Reference:
Initiate a Live Terminal Session
WebSocket
質問 # 25
Which of the following represents the correct relation of alerts to incidents?
正解：C
解説：
The correct relation of alerts to incidents is that alerts with same causality chains that occur within a given time frame are grouped together into an incident. A causality chain is a sequence of events that are related to the same malicious activity, such as a malware infection, a lateral movement, or a data exfiltration. Cortex XDR uses a set of rules that take into account different attributes of the alerts, such as the alert source, type, and time period, to determine if they belong to the same causality chain. By grouping related alerts into incidents, Cortex XDR reduces the number of individual events to review and provides a complete picture of the attack with rich investigative details1.
Option A is incorrect, because alerts with the same host are not necessarily grouped together into one incident in a given time frame. Alerts with the same host may belong to different causality chains, or may be unrelated to any malicious activity. For example, if a host has a malware infection and a network anomaly, these alerts may not be grouped into the same incident, unless they are part of the same attack.
Option B is incorrect, because alerts that occur within a three hour time frame are not always grouped together into one incident. The time frame is not the only criterion for grouping alerts into incidents. Alerts that occur within a three hour time frame may belong to different causality chains, or may be unrelated to any malicious activity. For example, if a host has a file download and a registry modification within a three hour time frame, these alerts may not be grouped into the same incident, unless they are part of the same attack.
Option D is incorrect, because every alert does not create a new incident. Creating a new incident for every alert would result in alert fatigue and inefficient investigations. Cortex XDR aims to reduce the number of incidents by grouping related alerts into one incident, based on their causality chains and other attributes.
Reference:
Palo Alto Networks Certified Detection and Remediation Analyst (PCDRA) Study Guide, page 9 Palo Alto Networks Cortex XDR Documentation, Incident Management Overview2 Cortex XDR: Stop Breaches with AI-Powered Cybersecurity1
質問 # 26
To stop a network-based attack, any interference with a portion of the attack pattern is enough to prevent it from succeeding. Which statement is correct regarding the Cortex XDR Analytics module?
正解：B
解説：
The correct statement regarding the Cortex XDR Analytics module is D, it interferes with the pattern as soon as it is observed on the endpoint. The Cortex XDR Analytics module is a feature of Cortex XDR that uses machine learning and behavioral analytics to detect and prevent network-based attacks on endpoints. The Cortex XDR Analytics module analyzes the network traffic and activity on the endpoint, and compares it with the attack patterns defined by Palo Alto Networks threat research team. The Cortex XDR Analytics module interferes with the attack pattern as soon as it is observed on the endpoint, by blocking the malicious network connection, process, or file. This way, the Cortex XDR Analytics module can stop the attack before it causes any damage or compromise.
The other statements are incorrect for the following reasons:
A is incorrect because the Cortex XDR Analytics module does interfere with the attack pattern on the endpoint, by blocking the malicious network connection, process, or file. The Cortex XDR Analytics module does not rely on the firewall or any other network device to stop the attack, but rather uses the Cortex XDR agent installed on the endpoint to perform the interference.
B is incorrect because the Cortex XDR Analytics module does not interfere with the attack pattern as soon as it is observed by the firewall. The Cortex XDR Analytics module does not depend on the firewall or any other network device to detect or prevent the attack, but rather uses the Cortex XDR agent installed on the endpoint to perform the analysis and interference. The firewall may not be able to observe or block the attack pattern if it is encrypted, obfuscated, or bypassed by the attacker.
C is incorrect because the Cortex XDR Analytics module does need to interfere with the attack pattern to prevent the attack. The Cortex XDR Analytics module does not only detect the attack pattern, but also prevents it from succeeding by blocking the malicious network connection, process, or file. The Cortex XDR Analytics module does not rely on any other response mechanism or human intervention to stop the attack, but rather uses the Cortex XDR agent installed on the endpoint to perform the interference.
Reference:
Cortex XDR Analytics Module
Cortex XDR Analytics Module Detection and Prevention
質問 # 27
A Linux endpoint with a Cortex XDR Pro per Endpoint license and Enhanced Endpoint Data enabled has reported malicious activity, resulting in the creation of a file that you wish to delete. Which action could you take to delete the file?
正解：B
解説：
The best action to delete the file on the Linux endpoint is to initiate Remediation Suggestions from the Cortex XDR console. Remediation Suggestions are a feature of Cortex XDR that provide you with recommended actions to undo the effects of malicious activity on your endpoints. You can view the remediation suggestions for each alert or incident in the Cortex XDR console, and decide whether to apply them or not. Remediation Suggestions can help you restore the endpoint to its original state, remove malicious files or processes, or fix registry or system settings. Remediation Suggestions are based on the forensic data collected by the Cortex XDR agent and the analysis performed by Cortex XDR.
The other options are incorrect for the following reasons:
A is incorrect because manually remediating the problem on the endpoint is not a convenient or efficient way to delete the file. Manually remediating the problem would require you to access the endpoint directly, log in as root, locate the file, and delete it. This would also require you to have the necessary permissions and credentials to access the endpoint, and to know the exact path and name of the file. Manually remediating the problem would also not provide you with any audit trail or confirmation of the deletion.
B is incorrect because opening X2go from the Cortex XDR console is not a supported or secure way to delete the file. X2go is a third-party remote desktop software that allows you to access Linux endpoints from a graphical user interface. However, X2go is not integrated with Cortex XDR, and using it would require you to install and configure it on both the Cortex XDR console and the endpoint. Using X2go would also expose the endpoint to potential network attacks or unauthorized access, and would not provide you with any audit trail or confirmation of the deletion.
D is incorrect because opening an NFS connection from the Cortex XDR console is not a feasible or reliable way to delete the file. NFS is a network file system protocol that allows you to access files on remote servers as if they were local. However, NFS is not integrated with Cortex XDR, and using it would require you to set up and maintain an NFS server and client on both the Cortex XDR console and the endpoint. Using NFS would also depend on the network availability and performance, and would not provide you with any audit trail or confirmation of the deletion.
Reference:
Remediation Suggestions
Apply Remediation Suggestions
質問 # 28
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