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100% Pass CCOA - ISACA Certified Cybersecurity Operations Analyst–High Pass-Rate Dumps Guide

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ISACA Certified Cybersecurity Operations Analyst Sample Questions (Q99-Q104):

NEW QUESTION # 99
An organization was breached via a web application attack to a database in which user inputs were not validated. This can BEST be described as which type of attack?

A. X-Path
B. Infection
C. Broken access control
D. Buffer overflow

Answer: C

Explanation:
The described scenario indicates aInjection (i)attack, where the attacker exploitsinsufficient input validation in a web application to manipulate queries. This type of attack falls under the category ofBroken Access Controlbecause:
* Improper Input Handling:The application fails to properly sanitize or validate user inputs, allowing malicious commands to execute.
* Direct Database Manipulation:Attackers can bypass normal authentication or gain elevated access by injecting code.
* OWASP Top Ten 2021:ListsBroken Access Controlas a critical risk, often leading to data breaches when input validation is weak.
Other options analysis:
* B. Infection:Typically involves malware, which is not relevant here.
* C. Buffer overflow:Involves memory management errors, not manipulation.
* D. X-Path:Involves XML query manipulation, not databases.
CCOA Official Review Manual, 1st Edition References:
* Chapter 4: Web Application Security:Discusses Injection as a common form of broken access control.
* Chapter 9: Secure Coding and Development:Stresses the importance of input validation to prevent i.

NEW QUESTION # 100
An organization continuously monitors enforcement of the least privilege principle and requires users and devices to re-authenticate at multiple levels of a system. Which type of security model has been adopted?

A. Defense-in-depth model
B. Layered security model
C. Zero Trust model
D. Security-in-depth model

Answer: C

Explanation:
TheZero Trust modelenforces the principle ofnever trust, always verifyby requiring continuous authentication and strict access controls, even within the network.
* Continuous Authentication:Users and devices must consistently prove their identity.
* Least Privilege:Access is granted only when necessary and only for the specific task.
* Micro-Segmentation:Limits the potential impact of a compromise.
* Monitoring and Validation:Continually checks user behavior and device integrity.
Incorrect Options:
* A. Security-in-depth model:Not a formal model; more of a general approach.
* B. Layered security model:Combines multiple security measures, but not as dynamic as Zero Trust.
* D. Defense-in-depth model:Uses multiple security layers but lacks continuous authentication and verification.
Exact Extract from CCOA Official Review Manual, 1st Edition:
Refer to Chapter 4, Section "Zero Trust Security," Subsection "Principles of Zero Trust" - The Zero Trust model continuously authenticates and limits access to minimize risks.

NEW QUESTION # 101
Which of the following is the BEST method for hardening an operating system?

A. Applying only critical updates
B. Manually signing all drivers and applications
C. Removing unnecessary services and applications
D. Implementing a host Intrusion detection system (HIOS)

Answer: C

Explanation:
Thebest method for hardening an operating systemis toremove unnecessary services and applications because:
* Minimizes Attack Surface:Reduces the number of potential entry points for attackers.
* Eliminates Vulnerabilities:Unused or outdated services may contain unpatched vulnerabilities.
* Performance Optimization:Fewer active services mean reduced resource consumption.
* Best Practice:Follow the principle ofminimal functionalityto secure operating systems.
* Security Baseline:After cleanup, the system is easier to manage and monitor.
Other options analysis:
* A. Implementing a HIDS:Helps detect intrusions but does not inherently harden the OS.
* B. Manually signing drivers:Ensures authenticity but doesn't reduce the attack surface.
* D. Applying only critical updates:Important but insufficient on its own. All relevant updates should be applied.
CCOA Official Review Manual, 1st Edition References:
* Chapter 9: Secure System Configuration:Emphasizes the removal of non-essential components for system hardening.
* Chapter 7: Endpoint Security Best Practices:Discusses minimizing services to reduce risk.

NEW QUESTION # 102
Which of the following Is a control message associated with the Internet Control Message Protocol (ICMP)?

A. Destination is unreachable.
B. 404 is not found.
C. Transport Layer Security (TLS) protocol version Is unsupported.
D. Webserver Is available.

Answer: A

Explanation:
TheInternet Control Message Protocol (ICMP)is used forerror reporting and diagnosticsin IP networks.
* Control Messages:ICMP messages inform the sender about network issues, such as:
* Destination Unreachable:Indicates that the packet could not reach the intended destination.
* Echo Request/Reply:Used inpingto test connectivity.
* Time Exceeded:Indicates that a packet'sTTL (Time to Live)has expired.
* Common Usage:Troubleshooting network issues (e.g.,pingandtraceroute).
Other options analysis:
* A. TLS protocol version unsupported:Related to SSL/TLS, not ICMP.
* C. 404 not found:An HTTP status code, unrelated to ICMP.
* D. Webserver is available:A general statement, not an ICMP message.
CCOA Official Review Manual, 1st Edition References:
* Chapter 4: Network Protocols and ICMP:Discusses ICMP control messages.
* Chapter 7: Network Troubleshooting Techniques:Explains ICMP's role in diagnostics.

NEW QUESTION # 103
Following a ransomware incident, the network teamprovided a PCAP file, titled ransom.pcap, located in theInvestigations folder on the Desktop.
What is the full User-Agent value associated with theransomware demand file download. Enter your responsein the field below.

Answer:

Explanation:
See the solution in Explanation.
Explanation:
To identify thefull User-Agent valueassociated with theransomware demand file downloadfrom the ransom.pcapfile, follow these detailed steps:
Step 1: Access the PCAP File
* Log into the Analyst Desktop.
* Navigate to theInvestigationsfolder located on the desktop.
* Locate the file:
ransom.pcap
Step 2: Open the PCAP File in Wireshark
* LaunchWireshark.
* Open the PCAP file:
mathematica
File > Open > Desktop > Investigations > ransom.pcap
* ClickOpento load the file.
Step 3: Filter HTTP Traffic
Since ransomware demands are often served astext files (e.g., README.txt)via HTTP/S, use the following filter:
http.request or http.response
* This filter will show bothHTTP GETandPOSTrequests.
Step 4: Locate the Ransomware Demand File Download
* Look for HTTPGETrequests that include common ransomware filenames such as:
* README.txt
* DECRYPT_INSTRUCTIONS.html
* HELP_DECRYPT.txt
* Right-click on the suspicious HTTP packet and select:
arduino
Follow > HTTP Stream
* Analyze theHTTP headersto find theUser-Agent.
Example HTTP Request:
GET /uploads/README.txt HTTP/1.1
Host: 10.10.44.200
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.75 Safari/537.36 Step 5: Verify the User-Agent
* Check multiple streams to ensure consistency.
* Confirm that theUser-Agentbelongs to the same host(10.10.44.200)involved in the ransomware incident.
swift
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.
0.5414.75 Safari/537.36
Step 6: Document and Report
* Record the User-Agent for analysis:
* PCAP Filename:ransom.pcap
* User-Agent:Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.75 Safari/537.36
* Related File:README.txt
Step 7: Next Steps
* Forensic Analysis:
* Look for more HTTP requests from the sameUser-Agent.
* Monitor Network Activity:
* Identify other systems with the same User-Agent pattern.
* Block Malicious Traffic:
* Update firewall rules to block any outbound connections to suspicious domains.

NEW QUESTION # 104
......

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