Free Jan-2024 PCDRA Certification Sample Questions certification Exam
Certification Topics of PCDRA Exam PDF Recently Updated Questions
The PCDRA certification program is specifically designed for security analysts and engineers who are responsible for managing and mitigating network security risks. PCDRA exam assesses their ability to analyze network traffic, identify vulnerabilities, and implement effective security measures to protect against cyber threats.
The Palo Alto Networks PCDRA exam covers a wide range of topics such as network security, malware analysis, endpoint protection, incident response, and forensics. Palo Alto Networks Certified Detection and Remediation Analyst certification is aimed at professionals who are responsible for detecting and responding to security incidents in a timely and effective manner. It is ideal for security analysts, incident responders, threat hunters, and other professionals who want to enhance their skills and knowledge in cybersecurity. The PCDRA certification demonstrates a candidate's ability to tackle complex security challenges and provides a competitive advantage in the job market.
NEW QUESTION # 42
What is an example of an attack vector for ransomware?
- A. Performing DNS queries for suspicious domains
- B. A URL filtering feature enabled on a firewall
- C. Performing SSL Decryption on an endpoint
- D. Phishing emails containing malicious attachments
Answer: D
Explanation:
Explanation
An example of an attack vector for ransomware is phishing emails containing malicious attachments. Phishing is a technique that involves sending fraudulent emails that appear to come from alegitimate source, such as a bank, a company, or a government agency. The emails typically contain a malicious attachment, such as a PDF document, a ZIP archive, or a Microsoft Office document, that contains ransomware or a ransomware downloader. When the recipient opens or downloads the attachment, the ransomware is executed and encrypts the files or data on the victim's system. The attacker then demands a ransom for the decryption key, usually in cryptocurrency.
Phishing emails are one of the most common and effective ways of delivering ransomware, as they can bypass security measures such as firewalls, antivirus software, or URL filtering. Phishing emails can also exploit the human factor, as they can trick the recipient into opening the attachment by using social engineering techniques, such as impersonating a trusted sender, creating a sense of urgency, or appealing to curiosity or greed. Phishing emails can also target specific individuals or organizations, such as executives, employees, or customers, in a technique called spear phishing, which increases the chances of success.
According to various sources, phishing emails are the main vector of ransomware attacks, accounting for more than 90% of all ransomware infections12. Some of the most notorious ransomware campaigns, such as CryptoLocker, Locky, and WannaCry, have used phishing emails as their primary delivery method3 .
Therefore, it is essential to educate users on how to recognize and avoid phishing emails, as well as to implement security solutions that can detect and block malicious attachments. References:
* Top 7 Ransomware Attack Vectors & How to Avoid Becoming a Victim - Bitsight
* What Is the Main Vector of Ransomware Attacks? A Definitive Guide
* CryptoLocker Ransomware Information Guide and FAQ
* [Locky Ransomware Information, Help Guide, and FAQ]
* [WannaCry ransomware attack]
NEW QUESTION # 43
When viewing the incident directly, what is the "assigned to" field value of a new Incident that was just reported to Cortex?
- A. Unassigned
- B. It is blank
- C. New
- D. Pending
Answer: C
NEW QUESTION # 44
Which of the following policy exceptions applies to the following description?
'An exception allowing specific PHP files'
- A. Local file threat examination exception
- B. Behavioral threat protection rule exception
- C. Support exception
- D. Process exception
Answer: A
NEW QUESTION # 45
When creating a BIOC rule, which XQL query can be used?
- A. dataset = xdr_data
| filter action_process_image_name ~= ".*?\.(?:pdf|docx)\.exe"
| fields action_process_image - B. dataset = xdr_data
| filter event_sub_type = PROCESS_START and
action_process_image_name ~= ".*?\.(?:pdf|docx)\.exe" - C. dataset = xdr_data
| filter event_behavior = true
event_sub_type = PROCESS_START and
action_process_image_name ~= ".*?\.(?:pdf|docx)\.exe" - D. dataset = xdr_data
| filter event_type = PROCESS and
event_sub_type = PROCESS_START and
action_process_image_name ~= ".*?\.(?:pdf|docx)\.exe"
Answer: D
Explanation:
Explanation
A BIOC rule is a custom detection rule that uses the Cortex Query Language (XQL) to define the behavior or actions that indicate a potential threat. A BIOC rule can use the xdr_data and cloud_audit_log datasets and presets for these datasets. A BIOC rule can also use the filter stage, alter stage, and functions without any aggregations in the XQL query. The query must return a single field named action_process_image, which is the process image name of the suspicious process. The query must also include the event_type and event_sub_type fields in the filter stage to specify the type and sub-type of the event that triggers the rule.
Option B is the correct answer because it meets all the requirements for a valid BIOC rule query. It uses the xdr_data dataset, the filter stage, the event_type and event_sub_type fields, and the action_process_image_name field with a regular expression to match any process image name that ends with
.pdf.exe or .docx.exe, which are common indicators of malicious files.
Option A is incorrect because it does not include the event_type field in the filter stage, which is mandatory for a BIOC rule query.
Option C is incorrect because it does not include the event_type and event_sub_type fields in the filter stage, and it uses the fields stage, which is not supported for a BIOC rule query. It also returns the action_process_image field instead of the action_process_image_name field, which is the expected output for a BIOC rule query.
Option D is incorrect because it uses the event_behavior field, which is not supported for a BIOC rule query. It also does not include the event_type field in the filter stage, and it uses the event_sub_type field incorrectly.
The event_sub_type field should be equal to PROCESS_START, not true.
References:
* Working with BIOCs
* Cortex Query Language (XQL) Reference
NEW QUESTION # 46
While working the alerts involved in a Cortex XDR incident, an analyst has found that every alert in this incident requires an exclusion. What will the Cortex XDR console automatically do to this incident if all alerts contained have exclusions?
- A. mark the incident as Resolved - False Positive
- B. create an exception to prevent future false positives
- C. mark the incident as Unresolved
- D. create a BIOC rule excluding this behavior
Answer: A
Explanation:
Explanation
If all alerts contained in a Cortex XDR incident have exclusions, the Cortex XDR console will automatically mark the incident as Resolved - False Positive. This means that the incident was not a real threat, but a benign or legitimate activity that triggered an alert. By marking the incident as Resolved- False Positive, the Cortex XDR console removes the incident from the list of unresolved incidents and does not count it towards the incident statistics. This helps the analyst to focus on the true positive incidents that require further investigation and response1.
An exclusion is a rule that hides an alert from the Cortex XDR console, based on certain criteria, such as the alert source, type, severity, or description. An exclusion does not change the security policy or prevent the alert from firing, it only suppresses the alert from the console. An exclusion is useful when the analyst wants to reduce the noise of false positive alerts that are not relevant or important2.
An exception, on the other hand, is a rule that overrides the security policy and allows or blocks a process or file from running on an endpoint, based on certain attributes, such as the file hash, path, name, or signer. An exception is useful when the analyst wants to prevent false negative alerts that are caused by malicious or unwanted files or processes that are not detected by the security policy3.
A BIOC rule is a rule that creates an alert based on a custom XQL query that defines a specific behavior of interest or concern. A BIOC rule is useful when the analyst wants to detect and alert on anomalous or suspicious activities that are not covered by the default Cortex XDR rules4.
References:
* Palo Alto Networks Cortex XDR Documentation, Resolve an Incident1
* Palo Alto Networks Cortex XDR Documentation, Alert Exclusions2
* Palo Alto Networks Cortex XDR Documentation, Exceptions3
* Palo Alto Networks Cortex XDR Documentation, BIOC Rules4
NEW QUESTION # 47
Which statement regarding scripts in Cortex XDR is true?
- A. The level of risk is assigned to the script upon import.
- B. Any script can be imported including Visual Basic (VB) scripts.
- C. The script is run on the machine uploading the script to ensure that it is operational.
- D. Any version of Python script can be run.
Answer: D
NEW QUESTION # 48
Where would you go to add an exception to exclude a specific file hash from examination by the Malware profile for a Windows endpoint?
- A. From the rules menu select new exception, fill out the criteria, choose the scope to apply it to, hit save.
- B. Find the exceptions profile attached to the endpoint, under process exceptions select local analysis, paste the hash and save.
- C. Find the Malware profile attached to the endpoint, Under Portable Executable and DLL Examination add the hash to the allow list.
- D. In the Action Center, choose Allow list, select new action, select add to allow list, add your hash to the list, and apply it.
Answer: D
Explanation:
Explanation
To add an exception to exclude a specific file hash from examination by the Malware profile for a Windows endpoint, you need to use the Action Center in Cortex XDR. The Action Center allows you to create and manage actions that apply to endpoints, such as adding files or processes to the allow list or block list, isolating or unisolating endpoints, or initiating live terminal sessions. To add a file hash to the allow list, you need to choose Allow list, select new action, select add to allow list, add your hash to the list, and apply it. This will prevent the Malware profile from scanning or blocking the file on the endpoints that match the scope of the action. References: Cortex XDR 3: Responding to Attacks1, Action Center2
NEW QUESTION # 49
What functionality of the Broker VM would you use to ingest third-party firewall logs to the Cortex Data Lake?
- A. DB Collector
- B. Syslog Collector
- C. Netflow Collector
- D. Pathfinder
Answer: B
Explanation:
Explanation
The Broker VM is a virtual machine that acts as a data broker between third-party data sources and the Cortex Data Lake. It can ingest different types of data, such as syslog, netflow, database, and pathfinder. The Syslog Collector functionality of the Broker VM allows it to receive syslog messages from third-party devices, such as firewalls, routers, switches, and servers, and forward them to the Cortex Data Lake. The Syslog Collector can be configured to filter, parse, and enrich the syslog messages before sending them to the Cortex Data Lake. The Syslog Collector can also be used to ingest logs from third-party firewall vendors, such as Cisco, Fortinet, and Check Point, to the Cortex Data Lake. This enables Cortex XDR to analyze the firewall logs and provide visibility and threat detection across the network perimeter. References:
* Cortex XDR Data Broker VM
* Syslog Collector
* Supported Third-Party Firewall Vendors
NEW QUESTION # 50
What is the function of WildFire for Cortex XDR?
- A. WildFire accepts and analyses a sample to provide a verdict.
- B. WildFire runs in the cloud and analyses alert data from the XDR agent to check for behavioural threats.
- C. WildFire runs entirely on the agent to quickly analyse samples and provide a verdict.
- D. WildFire is the engine that runs on the local agent and determines whether behavioural threats are occurring on the endpoint.
Answer: A
NEW QUESTION # 51
Which two types of exception profiles you can create in Cortex XDR? (Choose two.)
- A. global exception profiles that apply to all endpoints
- B. agent exception profiles that apply to specific endpoints
- C. exception profiles that apply to specific endpoints
- D. role-based profiles that apply to specific endpoints
Answer: A,B
Explanation:
Explanation
Cortex XDR allows you to create two types of exception profiles: agent exception profiles and global exception profiles. Agent exception profiles apply to specific endpoints that are assigned to the profile. Global exception profiles apply to all endpoints in your network. You can use exception profiles to configure different types of exceptions, such as process exceptions, support exceptions, behavioral threat protection rule exceptions, local analysis rules exceptions, advanced analysis exceptions, or digital signer exceptions.
Exception profiles help you fine-tune the security policies for your endpoints and reduce false positives.
References:
* Exception Security Profiles
* Create an Agent Exception Profile
* Create a Global Exception Profile
NEW QUESTION # 52
What are two purposes of "Respond to Malicious Causality Chains" in a Cortex XDR Windows Malware profile? (Choose two.)
- A. Automatically block the IP addresses involved in malicious traffic.
- B. Automatically kill the processes involved in malicious activity.
- C. Automatically close the connections involved in malicious traffic.
- D. Automatically terminate the threads involved in malicious activity.
Answer: A,B
Explanation:
Explanation
The "Respond to Malicious Causality Chains" feature in a Cortex XDR Windows Malware profile allows the agent to take automatic actions against network connections and processes that are involved in malicious activity on the endpoint. The feature has two modes: Block IP Address and Kill Process1.
The two purposes of "Respond to Malicious Causality Chains" in a Cortex XDR Windows Malware profile are:
* Automatically kill the processes involved in malicious activity. This can help to stop the malware from spreading or doing any further damage.
* Automatically block the IP addresses involved in malicious traffic. This can help to prevent the malware from communicating with its command and control server or other malicious hosts.
The other two options, automatically close the connections involved in malicious traffic and automatically terminate the threads involved in malicious activity, are not specific to "Respond to Malicious Causality Chains". They are general security measures that the agent can perform regardless of the feature.
References:
* Cortex XDR Agent Security Profiles
* Cortex XDR Agent 7.5 Release Notes
* PCDRA: What are purposes of "Respond to Malicious Causality Chains" in ...
NEW QUESTION # 53
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?
- A. Open an NFS connection from the Cortex XDR console and delete the file.
- B. Manually remediate the problem on the endpoint in question.
- C. Open X2go from the Cortex XDR console and delete the file via X2go.
- D. Initiate Remediate Suggestions to automatically delete the file.
Answer: D
Explanation:
Explanation
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.
References:
* Remediation Suggestions
* Apply Remediation Suggestions
NEW QUESTION # 54
While working the alerts involved in a Cortex XDR incident, an analyst has found that every alert in this incident requires an exclusion. What will the Cortex XDR console automatically do to this incident if all alerts contained have exclusions?
- A. mark the incident as Resolved - False Positive
- B. create an exception to prevent future false positives
- C. mark the incident as Unresolved
- D. create a BIOC rule excluding this behavior
Answer: A
NEW QUESTION # 55
In the deployment of which Broker VM applet are you required to install a strong cipher SHA256-based SSL certificate?
- A. CSV Collector
- B. Syslog Collector
- C. Agent Installer and Content Caching
- D. Agent Proxy
Answer: C
NEW QUESTION # 56
Which Exploit Prevention Module (EPM) provides better entropy for randomization of memory locations?
- A. UASLR
- B. DLL Security
- C. JIT Mitigation
- D. Memory Limit Heap spray check
Answer: A
Explanation:
Explanation
UASLR stands for User Address Space Layout Randomization, which is a feature of Exploit Prevention Module (EPM) that provides better entropy for randomization of memory locations. UASLR adds entropy to the base address of the executable image and the heap, making it harder for attackers to predict the memory layout of a process. UASLR is enabled by default for all processes, but can be disabled or customized for specific applications using the EPM policy settings. References:
* Exploit Prevention Module (EPM) entropy randomization memory locations
* Exploit protection reference
NEW QUESTION # 57
What is the standard installation disk space recommended to install a Broker VM?
- A. 512GB disk space
- B. 256GB disk space
- C. 1GB disk space
- D. 2GB disk space
Answer: B
Explanation:
Explanation
The Broker VM for Cortex XDR is a virtual machine that serves as the central communication hub for all Cortex XDR agents deployed in your organization. It enables agents to communicate with the Cortex XDR cloud service and allows you to manage and monitor the agents' activities from a centralized location. The system requirements for the Broker VM are as follows:
* CPU: 4 cores
* RAM: 8 GB
* Disk space: 256 GB
* Network: Internet access and connectivity to all Cortex XDR agents
The disk space requirement is based on the number of agents and the frequency of content updates. The Broker VM stores the content updates locally and distributes them to the agents. The disk spacealso depends on the retention period of the content updates, which can be configured in the Broker VM settings. The default retention period is 30 days.
References:
* Broker VM for Cortex XDR
* PCDRA Study Guide
NEW QUESTION # 58
You can star security events in which two ways? (Choose two.)
- A. Manually star an alert.
- B. Create an Incident-starring configuration.
- C. Create an alert-starring configuration.
- D. Manually star an Incident.
Answer: B,D
NEW QUESTION # 59
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The PCDRA certification exam covers a range of topics, including threat intelligence, network security, endpoint protection, and incident response. Palo Alto Networks Certified Detection and Remediation Analyst certification is ideal for security analysts, consultants, and engineers who want to improve their skills in detecting and responding to security incidents. It is also useful for organizations that want to ensure their security teams are equipped with the knowledge and skills needed to protect against modern cyber threats.
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