CompTIA CySA+ Exam Newest 2026-2027
Updated Practice Exam | 150+ Actual Most
Tested Questions Collections & Verified
Detailed Answers From Past Papers | Expert
Verified Success Exam) Graded A+
Question 1
A security analyst notices repeated failed login attempts across multiple accounts
originating from different IP addresses. What type of attack is most likely
occurring?
A. Credential stuffing
B. Brute force attack
C. Phishing campaign
D. DNS poisoning
Answer: B. Brute force attack ✓
Rationale: A brute force attack involves repeated login attempts to guess
credentials. The pattern of repeated failures aligns with automated guessing
behavior.
Question 2
Which tool is BEST used to analyze network traffic in real time?
A. Wireshark
B. Netcat
C. Nmap
D. Hashcat
,Answer: A. Wireshark ✓
Rationale: Wireshark is a packet analysis tool used for deep inspection of live
network traffic.
Question 3
An IDS alerts on unusual outbound traffic to a known malicious IP. What should
the analyst do FIRST?
A. Reimage the host
B. Block the IP permanently
C. Validate the alert
D. Shut down the network
Answer: C. Validate the alert ✓
Rationale: Analysts must first validate alerts to reduce false positives before taking
remediation actions.
Question 4
Which log source is MOST useful for detecting unauthorized file access?
A. Firewall logs
B. Application logs
C. File integrity monitoring logs
D. DNS logs
Answer: C. File integrity monitoring logs ✓
Rationale: FIM logs track changes to files and detect unauthorized modifications
or access.
Question 5
A ransomware attack is suspected. What is the FIRST containment step?
,A. Pay ransom
B. Disconnect infected systems
C. Restore from backup
D. Notify customers
Answer: B. Disconnect infected systems ✓
Rationale: Immediate network isolation prevents lateral spread of ransomware.
Question 6
Which attack exploits trust relationships between websites and browsers?
A. SQL injection
B. Cross-site scripting (XSS)
C. ARP spoofing
D. Pass-the-hash
Answer: B. Cross-site scripting (XSS) ✓
Rationale: XSS injects malicious scripts into trusted websites viewed by users.
Question 7
Which SIEM function correlates events across multiple sources?
A. Log storage
B. Event correlation
C. Packet capture
D. Malware removal
Answer: B. Event correlation ✓
Rationale: SIEM tools perform event correlation to identify attack patterns.
Question 8
, A system shows high CPU usage and unknown processes. What is MOST likely?
A. DDoS attack
B. Malware infection
C. DNS misconfiguration
D. Patch update
Answer: B. Malware infection ✓
Rationale: Unexpected processes and resource spikes often indicate malware.
Question 9
Which technique is used to hide malicious traffic inside legitimate protocols?
A. Tunneling
B. Phishing
C. Sniffing
D. Spoofing
Answer: A. Tunneling ✓
Rationale: Tunneling encapsulates malicious traffic within legitimate protocols.
Question 10
What is the primary purpose of threat hunting?
A. Block all unknown IPs
B. React to alerts only
C. Proactively search for threats
D. Replace firewalls
Answer: C. Proactively search for threats ✓
Rationale: Threat hunting is proactive identification of hidden threats.
Updated Practice Exam | 150+ Actual Most
Tested Questions Collections & Verified
Detailed Answers From Past Papers | Expert
Verified Success Exam) Graded A+
Question 1
A security analyst notices repeated failed login attempts across multiple accounts
originating from different IP addresses. What type of attack is most likely
occurring?
A. Credential stuffing
B. Brute force attack
C. Phishing campaign
D. DNS poisoning
Answer: B. Brute force attack ✓
Rationale: A brute force attack involves repeated login attempts to guess
credentials. The pattern of repeated failures aligns with automated guessing
behavior.
Question 2
Which tool is BEST used to analyze network traffic in real time?
A. Wireshark
B. Netcat
C. Nmap
D. Hashcat
,Answer: A. Wireshark ✓
Rationale: Wireshark is a packet analysis tool used for deep inspection of live
network traffic.
Question 3
An IDS alerts on unusual outbound traffic to a known malicious IP. What should
the analyst do FIRST?
A. Reimage the host
B. Block the IP permanently
C. Validate the alert
D. Shut down the network
Answer: C. Validate the alert ✓
Rationale: Analysts must first validate alerts to reduce false positives before taking
remediation actions.
Question 4
Which log source is MOST useful for detecting unauthorized file access?
A. Firewall logs
B. Application logs
C. File integrity monitoring logs
D. DNS logs
Answer: C. File integrity monitoring logs ✓
Rationale: FIM logs track changes to files and detect unauthorized modifications
or access.
Question 5
A ransomware attack is suspected. What is the FIRST containment step?
,A. Pay ransom
B. Disconnect infected systems
C. Restore from backup
D. Notify customers
Answer: B. Disconnect infected systems ✓
Rationale: Immediate network isolation prevents lateral spread of ransomware.
Question 6
Which attack exploits trust relationships between websites and browsers?
A. SQL injection
B. Cross-site scripting (XSS)
C. ARP spoofing
D. Pass-the-hash
Answer: B. Cross-site scripting (XSS) ✓
Rationale: XSS injects malicious scripts into trusted websites viewed by users.
Question 7
Which SIEM function correlates events across multiple sources?
A. Log storage
B. Event correlation
C. Packet capture
D. Malware removal
Answer: B. Event correlation ✓
Rationale: SIEM tools perform event correlation to identify attack patterns.
Question 8
, A system shows high CPU usage and unknown processes. What is MOST likely?
A. DDoS attack
B. Malware infection
C. DNS misconfiguration
D. Patch update
Answer: B. Malware infection ✓
Rationale: Unexpected processes and resource spikes often indicate malware.
Question 9
Which technique is used to hide malicious traffic inside legitimate protocols?
A. Tunneling
B. Phishing
C. Sniffing
D. Spoofing
Answer: A. Tunneling ✓
Rationale: Tunneling encapsulates malicious traffic within legitimate protocols.
Question 10
What is the primary purpose of threat hunting?
A. Block all unknown IPs
B. React to alerts only
C. Proactively search for threats
D. Replace firewalls
Answer: C. Proactively search for threats ✓
Rationale: Threat hunting is proactive identification of hidden threats.
