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100% Pass Quiz Professional ISACA - CCOA Pass4sure Pass Guide

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ISACA Certified Cybersecurity Operations Analyst Sample Questions (Q28-Q33):

NEW QUESTION # 28
Which ofthe following is the PRIMARY purpose of load balancers in cloud networking?

A. Distributing traffic between multiple servers
B. Optimizing database queries
C. Monitoring network traffic
D. Load testing applications

Answer: A

Explanation:
Theprimary purpose of load balancers in cloud networkingis todistribute incoming network traffic across multiple servers, thereby:
* Ensuring Availability:By balancing traffic, load balancers prevent server overload and ensure high availability.
* Performance Optimization:Evenly distributing traffic reduces response time and improves user experience.
* Fault Tolerance:If one server fails, the load balancer redirects traffic to healthy servers, maintaining service continuity.
* Scalability:Automatically adjusts to traffic changes by adding or removing servers as needed.
* Use Cases:Commonly used forweb applications, databases, and microservicesin cloud environments.
Other options analysis:
* B. Optimizing database queries:Managed at the database level, not by load balancers.
* C. Monitoring network traffic:Load balancers do not primarily monitor but distribute traffic.
* D. Load testing applications:Load balancers do not perform testing; they manage live traffic.
CCOA Official Review Manual, 1st Edition References:
* Chapter 4: Network Traffic Management:Discusses the role of load balancers in cloud environments.
* Chapter 7: High Availability and Load Balancing:Explains how load balancers enhance system resilience.

NEW QUESTION # 29
Which of the following BEST describes JSON web tokens?

A. They are signed using a public key and verified using a private key.
B. They can be used to store user Information and session data.
C. They can only be used to authenticate users in web applications.
D. They are only used with symmetric encryption.

Answer: B

Explanation:
JSON Web Tokens (JWTs)are used totransmit data between parties securely, often forauthentication and session management.
* Data Storage:JWTs can contain user information and session details within thepayloadsection.
* Stateless Authentication:Since the token itself holds the user data, servers do not need to store sessions.
* Signed, Not Encrypted:JWTs are typicallysigned using private keysto ensure integrity but may or may not be encrypted.
* Common Usage:API authentication, single sign-on (SSO), and user sessions in web applications.
Other options analysis:
* B. Only for authentication:JWTs can also carry claims for authorization or session data.
* C. Signed using public key:Usually, JWTs aresigned with a private keyandverified using a public key.
* D. Only symmetric encryption:JWTs can useboth symmetric (HMAC) and asymmetric (RSA/EC) algorithms.
CCOA Official Review Manual, 1st Edition References:
* Chapter 8: Authentication and Token Management:Explains the role of JWTs in secure data transmission.
* Chapter 9: API Security:Discusses the use of JWTs for secure API communication.

NEW QUESTION # 30
An employee has been terminated for policy violations.Security logs from win-webserver01 have been collectedand located in the Investigations folder on theDesktop as win-webserver01_logs.zip.
Create a new case in Security Onion from the win-webserver01_logs.zip file. The case title is WindowsWebserver Logs - CCOA New Case and TLP must beset to Green. No additional fields are required.

Answer:

Explanation:
See the solution in Explanation.
Explanation:
To create a new case inSecurity Onionusing the logs from the win-webserver01_logs.zip file, follow these detailed steps:
Step 1: Access Security Onion
* Open a web browser and go to yourSecurity Onionweb interface.
URL: https://<security-onion-ip>/
* Log in using yourSecurity Onioncredentials.
Step 2: Prepare the Log File
* Navigate to theDesktopand open theInvestigationsfolder.
* Locate the file:
win-webserver01_logs.zip
* Unzip the file to inspect its contents:
unzip ~/Desktop/Investigations/win-webserver01_logs.zip -d ~/Desktop/Investigations/win-webserver01_logs
* Ensure that the extracted files, including System-logs.evtx, are accessible.
Step 3: Open the Hunt Interface in Security Onion
* On the Security Onion dashboard, go to"Hunt"(or"Cases"depending on the version).
* Click on"Cases"to manage incident cases.
Step 4: Create a New Case
* Click on"New Case"to start a fresh investigation.
Case Details:
* Title:
Windows Webserver Logs - CCOA New Case
* TLP (Traffic Light Protocol):
* Set toGreen(indicating that the information can be shared freely).
Example Configuration:
Field
Value
Title
Windows Webserver Logs - CCOA New Case
TLP
Green
Summary
(Leave blank if not required)
* Click"Save"to create the case.
Step 5: Upload the Log Files
* After creating the case, go to the"Files"section of the new case.
* Click on"Upload"and select the unzipped log file:
~/Desktop/Investigations/win-webserver01_logs/System-logs.evtx
* Once uploaded, the file will be associated with the case.
Step 6: Verify the Case Creation
* Go back to theCasesdashboard.
* Locate and verify that the case"Windows Webserver Logs - CCOA New Case"exists withTLP:
Green.
* Check that thelog filehas been successfully uploaded.
Step 7: Document and Report
* Document the case details:
* Case Title:Windows Webserver Logs - CCOA New Case
* TLP:Green
* Log File:System-logs.evtx
* Include anyinitial observationsfrom the log analysis.
Example Answer:
A new case titled "Windows Webserver Logs - CCOA New Case" with TLP set to Green has been successfully created in Security Onion. The log file System-logs.evtx has been uploaded and linked to the case.
Step 8: Next Steps for Investigation
* Analyze the log file:Start hunting for suspicious activities.
* Create analysis tasks:Assign team members to investigate specific log entries.
* Correlate with other data:Cross-reference with threat intelligence sources.

NEW QUESTION # 31
Most of the operational responsibility remains with the customerin which of the following cloudservice models?

A. Software as a Service (SaaS)
B. Platform as a Service (PaaS)
C. Infrastructure as a Service (laaS)
D. Data Platform as a Service (DPaaS)

Answer: C

Explanation:
In theIaaS (Infrastructure as a Service)model, the majority of operational responsibilities remain with the customer.
* Customer Responsibilities:OS management, application updates, security configuration, data protection, and network controls.
* Provider Responsibilities:Hardware maintenance, virtualization, and network infrastructure.
* Flexibility:Customers have significant control over the operating environment, making them responsible for most security measures.
Incorrect Options:
* A. Data Platform as a Service (DPaaS):Managed data services where the provider handles database infrastructure.
* B. Software as a Service (SaaS):Provider manages almost all operational aspects.
* C. Platform as a Service (PaaS):Provider manages the platform; customers focus on application management.
Exact Extract from CCOA Official Review Manual, 1st Edition:
Refer to Chapter 3, Section "Cloud Service Models," Subsection "IaaS Responsibilities" - IaaS requires customers to manage most operational aspects, unlike PaaS or SaaS.

NEW QUESTION # 32
The CISO has received a bulletin from law enforcementauthorities warning that the enterprise may be at risk ofattack from a specific threat actor. Review the bulletin named CCOA Threat Bulletin.pdf on the Desktop.
Which host IP was targeted during the following timeframe: 11:39 PM to 11:43 PM (Absolute) on August
16,2024?

Answer:

Explanation:
See the solution in Explanation.
Explanation:
Step 1: Understand the Task and Objective
Objective:
* Identify thehost IP targetedduring thespecified time frame:
vbnet
11:39 PM to 11:43 PM on August 16, 2024
* The relevant file to examine:
nginx
CCOA Threat Bulletin.pdf
* File location:
javascript
~/Desktop/CCOA Threat Bulletin.pdf
Step 2: Access and Analyze the Bulletin
2.1: Access the PDF File
* Open the file using a PDF reader:
xdg-open ~/Desktop/CCOA Threat Bulletin.pdf
* Alternative (if using CLI-based tools):
pdftotext ~/Desktop/CCOA Threat Bulletin.pdf - | less
* This command converts the PDF to text and allows you to inspect the content.
2.2: Review the Bulletin Contents
* Focus on:
* Specific dates and times mentioned.
* Indicators of Compromise (IoCs), such asIP addressesortimestamps.
* Any references toAugust 16, 2024, particularly between11:39 PM and 11:43 PM.
Step 3: Search for Relevant Logs
3.1: Locate the Logs
* Logs are likely stored in a central logging server or SIEM.
* Common directories to check:
swift
/var/log/
/home/administrator/hids/logs/
/var/log/auth.log
/var/log/syslog
* Navigate to the primary logs directory:
cd /var/log/
ls -l
3.2: Search for Logs Matching the Date and Time
* Use the grep command to filter relevant logs:
grep "2024-08-16 23:3[9-9]|2024-08-16 23:4[0-3]" /var/log/syslog
* Explanation:
* grep: Searches for the timestamp pattern in the log file.
* "2024-08-16 23:3[9-9]|2024-08-16 23:4[0-3]": Matches timestamps from11:39 PM to 11:43 PM.
Alternative Command:
If log files are split by date:
grep "23:3[9-9]|23:4[0-3]" /var/log/syslog.1
Step 4: Filter the Targeted Host IP
4.1: Extract IP Addresses
* After filtering the logs, isolate the IP addresses:
grep "2024-08-16 23:3[9-9]|2024-08-16 23:4[0-3]" /var/log/syslog | awk '{print $8}' | sort | uniq -c | sort -nr
* Explanation:
* awk '{print $8}': Extracts the field where IP addresses typically appear.
* sort | uniq -c: Counts unique IPs and sorts them.
Step 5: Analyze the Output
Sample Output:
15 192.168.1.10
8 192.168.1.20
3 192.168.1.30
* The IP with themost log entrieswithin the specified timeframe is usually thetargeted host.
* Most likely targeted IP:
192.168.1.10
* If the log contains specific attack patterns (likebrute force,exploitation, orunauthorized access), prioritize IPs associated with those activities.
Step 6: Validate the Findings
6.1: Cross-Reference with the Threat Bulletin
* Check if the identified IP matches anyIoCslisted in theCCOA Threat Bulletin.pdf.
* Look for context likeattack vectorsortargeted systems.
Step 7: Report the Findings
Summary:
* Time Frame:11:39 PM to 11:43 PM on August 16, 2024
* Targeted IP:
192.168.1.10
* Evidence:
* Log entries matching the specified timeframe.
* Cross-referenced with theCCOA Threat Bulletin.
Step 8: Incident Response Recommendations
* Block IP addressesidentified as malicious.
* Update firewall rulesto mitigate similar attacks.
* Monitor logsfor any post-compromise activity on the targeted host.
* Conduct a vulnerability scanon the affected system.
Final Answer:
192.168.1.10

NEW QUESTION # 33
......

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