CompTIA CS0-003 Questions Answers

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CompTIA CS0-003 Sample Questions

Question # 1

 An email hosting provider added a new data center with new public IP addresses. Which of the following most likely needs to be updated to ensure emails from the new data center do not get blocked by spam filters?

A. DKIM 
B. SPF 
C. SMTP
 D. DMARC 

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Question # 2

 Which of the following attributes is part of the Diamond Model of Intrusion Analysis?

A. Delivery 
B. Weaponization y
C. Command and control 
D. Capabilit

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Question # 3

An organization has a critical financial application hosted online that does not allow event logging to send to the corporate SIEM. Which of the following is the best option for the security analyst to configure to improve the efficiency of security operations?

 A. Configure a new SIEM specific to the management of the hosted environment. 
B. Subscribe to a threat feed related to the vendor's application. 
C. Use a vendor-provided API to automate pulling the logs in real time. 
D. Download and manually import the logs outside of business hours.

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Question # 4

A security analyst needs to secure digital evidence related to an incident. The security analyst must ensure that the accuracy of the data cannot be repudiated. Which of the following should be implemented?

A. Offline storage 
B. Evidence collection 
C. Integrity validation 
D. Legal hold

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Question # 5

A new cybersecurity analyst is tasked with creating an executive briefing on possible threats to the organization. Which of the following will produce the data needed for the briefing?

A. Firewall logs 
B. Indicators of compromise 
C. Risk assessment 
D. Access control lists 

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Question # 6

 Which of the following would an organization use to develop a business continuity plan? 

A. A diagram of all systems and interdependent applications 
B. A repository for all the software used by the organization 
C. A prioritized list of critical systems defined by executive leadership 
D. A configuration management database in print at an off-site location

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Question # 7

 A user downloads software that contains malware onto a computer that eventually infects numerous other systems. Which of the following has the user become?

A. Hacklivist 
B. Advanced persistent threat 
 C. Insider threat 
D. Script kiddie

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Question # 8

Which of the following is most appropriate to use with SOAR when the security team would like to automate actions across different vendor platforms?

A. STIX/TAXII 
B. APIs 
C. Data enrichment 
D. Threat feed 

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Question # 9

Which of the following best explains the importance of utilizing an incident response playbook?

 A. It prioritizes the business-critical assets for data recovery. 
B. It establishes actions to execute when inputs trigger an event. 
C. It documents the organization asset management and configuration. 
D. It defines how many disaster recovery sites should be staged.

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Question # 10

A list of loCs released by a government security organization contains the SHA-256 hash for a Microsoft-signed legitimate binary, svchost. exe. Which of the following best describes the result if security teams add this indicator to their detection signatures?

A. This indicator would fire on the majority of Windows devices. 
B. Malicious files with a matching hash would be detected. 
C. Security teams would detect rogue svchost. exe processesintheirenvironment. 
D. Security teams would detect event entries detailing executionofknown-malicioussvchost. exe processes. 

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Question # 11

 A vulnerability scan shows the following issues: Asset Type CVSS Score Exploit VectorWorkstations 6.5 RDP vulnerability Storage Server 9.0 Unauthorized access due to server application vulnerability Firewall 8.9 Default password vulnerability Web Server 10.0 Zero-day vulnerability (vendor working on patch) Which of the following actions should the security analyst take first?

A. Contact the web systems administrator and request that they shut down the asset. 
B. Monitor the patch releases for all items and escalate patching to the appropriate team. 
C. Run the vulnerability scan again to verify the presence of the critical finding. 
D. Forward the advisory to the web security team and initiate the prioritization strategy for the other vulnerabilities.

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Question # 12

 A security analyst would like to integrate two different SaaS-based security tools so that one tool can notify the other in the event a threat is detected. Which of the following should the analyst utilize to best accomplish this goal?

A. SMB share 
B. API endpoint 
C. SMTP notification 
D. SNMP trap

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Question # 13

An employee downloads a freeware program to change the desktop to the classic look of legacy Windows. Shortly after the employee installs the program, a high volume of random DNS queries begin to originate from the system. An investigation on the system reveals the following: Add-MpPreference -ExclusionPath '%Program Filest\ksysconfig' Which of the following is possibly occurring?

 A. Persistence 
B. Privilege escalation 
C. Credential harvesting 
D. Defense evasion 

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Question # 14

 A web application has a function to retrieve content from an internal URL to identify CSRF attacks in the logs. The security analyst is building a regular expression that will filter out the correctly formatted requests. The target URL is https://10.1.2.3/api, and the receiving API only accepts GET requests and uses a single integer argument named "id." Which of the following regular expressions should the analyst use to achieve the objective?

A. (?!https://10\.1\.2\.3/api\?id=[0-9]+) 
B. "https://10\.1\.2\.3/api\?id=\d+ 
C. (?:"https://10\.1\.2\.3/api\?id-[0-9]+) 
D. https://10\.1\.2\.3/api\?id«[0-9J$

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Question # 15

 A security analyst is trying to identify anomalies on the network routing. Which of the following functions can the analyst use on a shell script to achieve the objective most accurately?

A. function x() { info=$(geoiplookup $1) && echo "$1 | $info" } 
B. function x() { info=$(ping -c 1 $1 | awk -F "/" ’END{print $5}’) && echo "$1 | $info" } 
C. function x() { info=$(dig $(dig -x $1 | grep PTR | tail -n 1 | awk -F ".in-addr" ’{print $1} ').origin.asn.cymru.com TXT +short) && echo "$1 | $info" } 
D. function x() { info=$(traceroute -m 40 $1 | awk ‘END{print $1}’) && echo "$1 | $info" }

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