CompTIA CompTIA Certifications CS0-003 Questions & Answers

• Question 431:

  The analyst reviews the following endpoint log entry: Which of the following has occurred?

  

  A. Registry change

  B. Rename computer

  C. New account introduced

  D. Privilege escalation

  Correct Answer: C

  The endpoint log entry shows that a new account named "admin" has been created on a Windows system with a local group membership of "Administrators". This indicates that a new account has been introduced on the system with administrative privileges. This could be a sign of malicious activity, such as privilege escalation or backdoor creation, by an attacker who has compromised the system.

• Question 432:

  A security program was able to achieve a 30% improvement in MTTR by integrating security controls into a SIEM. The analyst no longer had to jump between tools. Which of the following best describes what the security program did?

  A. Data enrichment

  B. Security control plane

  C. Threat feed combination

  D. Single pane of glass

  Correct Answer: D

  A single pane of glass is a term that describes a unified view or interface that integrates multiple tools or data sources into one dashboard or console. A single pane of glass can help improve security operations by providing visibility, correlation, analysis, and alerting capabilities across various security controls and systems. A single pane of glass can also help reduce complexity, improve efficiency, and enhance decision making for security analysts. In this case, a security program was able to achieve a 30% improvement in MTTR by integrating security controls into a SIEM, which provides a single pane of glass for security operations. Official Reference: https://www.eccouncil.org/cybersecurity-exchange/threat-intelligence/cyber-kill-chain-seven-steps-cyberattack

• Question 433:

  A technician identifies a vulnerability on a server and applies a software patch. Which of the following should be the next step in the remediation process?

  A. Testing

  B. Implementation

  C. Validation

  D. Rollback

  Correct Answer: C

  The next step in the remediation process after applying a software patch is validation. Validation is a process that involves verifying that the patch has been successfully applied, that it has fixed the vulnerability, and that it has not caused any adverse effects on the system or application functionality or performance. Validation can be done using various methods, such as scanning, testing, monitoring, or auditing.

• Question 434:

  Which of the following is the first step that should be performed when establishing a disaster recovery plan?

  A. Agree on the goals and objectives of the plan

  B. Determine the site to be used during a disaster

  C. Demonstrate adherence to a standard disaster recovery process

  D. Identity applications to be run during a disaster

  Correct Answer: A

  The first step that should be performed when establishing a disaster recovery plan is to agree on the goals and objectives of the plan. The goals and objectives of the plan should define what the plan aims to achieve, such as minimizing downtime, restoring critical functions, ensuring data integrity, or meeting compliance requirements. The goals and objectives of the plan should also be aligned with the business needs and priorities of the organization and be measurable and achievable.

• Question 435:

  A security alert was triggered when an end user tried to access a website that is not allowed per organizational policy. Since the action is considered a terminable offense, the SOC analyst collects the authentication logs, web logs, and temporary files, reflecting the web searches from the user's workstation, to build the case for the investigation. Which of the following is the best way to ensure that the investigation complies with HR or privacy policies?

  A. Create a timeline of events detailinq the date stamps, user account hostname and IP information associated with the activities

  B. Ensure that the case details do not reflect any user-identifiable information Password protect the evidence and restrict access to personnel related to the investigation

  C. Create a code name for the investigation in the ticketing system so that all personnel with access will not be able to easily identity the case as an HR-related investigation

  D. Notify the SOC manager for awareness after confirmation that the activity was intentional

  Correct Answer: B

  The best way to ensure that the investigation complies with HR or privacy policies is to ensure that the case details do not reflect any user-identifiable information, such as name, email address, phone number, or employee ID. This can help protect the privacy and confidentiality of the user and prevent any potential discrimination or retaliation. Additionally, password protecting the evidence and restricting access to personnel related to the investigation can help preserve the integrity and security of the evidence and prevent any unauthorized or accidental disclosure or modification.

• Question 436:

  Which of the following is the best metric for an organization to focus on given recent investments in SIEM, SOAR, and a ticketing system?

  A. Mean time to detect

  B. Number of exploits by tactic

  C. Alert volume

  D. Quantity of intrusion attempts

  Correct Answer: A

  Mean time to detect (MTTD) is the best metric for an organization to focus on given recent investments in SIEM, SOAR, and a ticketing system. MTTD is a metric that measures how long it takes to detect a security incident or threat from the time it occurs. MTTD can be improved by using tools and processes that can collect, correlate, analyze, and alert on security data from various sources. SIEM, SOAR, and ticketing systems are examples of such tools and processes that can help reduce MTTD and enhance security operations. Official https://www.eccouncil.org/cybersecurityexchange/threat-intelligence/cyber-kill-chain-seven-steps-cyberattack

• Question 437:

  A company is implementing a vulnerability management program and moving from an on-premises environment to a hybrid IaaS cloud environment. Which of the following implications should be considered on the new hybrid environment?

  A. The current scanners should be migrated to the cloud

  B. Cloud-specific misconfigurations may not be detected by the current scanners

  C. Existing vulnerability scanners cannot scan laaS systems

  D. Vulnerability scans on cloud environments should be performed from the cloud

  Correct Answer: B

  Cloud-specific misconfigurations are security issues that arise from improper or inadequate configuration of cloud resources, such as storage buckets, databases, virtual machines, or containers. Cloud-specific misconfigurations may not be detected by the current scanners that are designed for on-premises environments, as they may not have the visibility or access to the cloud resources or the "re, one of the implications that should be considered on the new hybrid environment is that cloud-specific misconfigurations may not be detected by the current scanners.

• Question 438:

  An incident response team found IoCs in a critical server. The team needs to isolate and collect technical evidence for further investigation. Which of the following pieces of data should be collected first in order to preserve sensitive information before isolating the server?

  A. Hard disk

  B. Primary boot partition

  C. Malicious tiles

  D. Routing table

  E. Static IP address

  Correct Answer: D

• Question 439:

  Which of the following security operations tasks are ideal for automation?

  A. Suspicious file analysis: Look for suspicious-looking graphics in a folder. Create subfolders in the original folder based on category of graphics found. Move the suspicious graphics to the appropriate subfolder

  B. Firewall IoC block actions: Examine the firewall logs for IoCs from the most recently published zero-day exploit Take mitigating actions in the firewall to block the behavior found in the logs Follow up on any false positives that were caused by the block rules

  C. Security application user errors: Search the error logs for signs of users having trouble with the security application Look up the user's phone number Call the user to help with any questions about using the application

  D. Email header analysis: Check the email header for a phishing confidence metric greater than or equal to five Add the domain of sender to the block list Move the email to quarantine

  Correct Answer: D

  Email header analysis is one of the security operations tasks that are ideal for automation. Email header analysis involves checking the email header for various indicators of phishing or spamming attempts, such as sender address spoofing, mismatched domains, suspicious subject lines, or phishing confidence metrics. Email header analysis can be automated using tools or scripts that can parse and analyze email headers and take appropriate actions based on predefined rules or thresholds

• Question 440:

  An organization has experienced a breach of customer transactions. Under the terms of PCI DSS, which of the following groups should the organization report the breach to?

  A. PCI Security Standards Council

  B. Local law enforcement

  C. Federal law enforcement

  D. Card issuer

  Correct Answer: D

  Under the terms of PCI DSS, an organization that has experienced a breach of customer transactions should report the breach to the card issuer. The card issuer is the financial institution that issues the payment cards to the customers and that is responsible for authorizing and processing the transactions. The card issuer may have specific reporting requirements and procedures for the organization to follow in the event of a breach. The organization should also notify other parties that may be affected by the breach, such as customers, law enforcement, or regulators, depending on the nature and scope of the breach. Official https://www.pcisecuritystandards.org/