SY0-701 Practice Test 45 — 15 Questions

Question 1

A security analyst in a SOC receives an alert indicating that a large volume of data was transferred from a user's workstation to an external IP address at 2:00 AM. The analyst suspects a data exfiltration attack. According to incident response best practices, what should the analyst do FIRST?

Accepted Answer

Review the user's login and activity logs.. Option B is correct because, in incident response, the first step is to gather evidence and understand the scope of the incident. Reviewing the user's login and activity logs (e.g., Windows Event Logs, authentication logs, and process creation logs) allows the analyst to verify if the user was actually logged in at 2:00 AM, identify any anomalous behavior (e.g., use of unauthorized tools or unusual file access patterns), and determine whether the data transfer was initiated by the user or by malware. This aligns with the NIST SP 800-61 incident response lifecycle, specifically the identification and analysis phase, where initial triage focuses on log review before taking containment actions.

Answer

Block the external IP address at the firewall.

Answer

Contact the user to inquire about the transfer.

Answer

Restore the workstation from a known good backup.

Question 2

A security analyst is reviewing the results of a dynamic application security test (DAST) on a new e-commerce application. The report indicates that the application's product search functionality is vulnerable to blind SQL injection. The analyst is tasked with recommending a remediation to the development team. The developers currently concatenate user input directly into SQL queries. Which of the following recommendations would most effectively and permanently mitigate this vulnerability?

Accepted Answer

Replace dynamic SQL queries with parameterized prepared statements.. Option C is correct because parameterized prepared statements separate SQL logic from user input, ensuring that input is always treated as data, not executable code. This permanently prevents SQL injection by design, regardless of the input content, unlike input filtering or WAF rules which can be bypassed.

Answer

Implement a web application firewall (WAF) rule to block suspicious SQL keywords in search parameters.

Answer

Sanitize user input by escaping single quotes and other special characters before concatenation.

Answer

Encode all user input using HTML entity encoding before database operations.

Question 3

A security analyst notices a sudden increase in outbound traffic from a database server that normally only communicates with internal application servers. The server is running a standard OS with no recent changes. Which of the following actions should the analyst take FIRST to determine if the server is compromised?

Accepted Answer

Check the server's running processes for unknown executables.. Checking the server's running processes for unknown executables is the first and most direct step to identify if an attacker has established a foothold. A sudden outbound traffic spike without recent configuration changes strongly suggests a malicious process (e.g., a reverse shell or data exfiltration tool) is running. Examining running processes allows the analyst to spot suspicious executables or command-line arguments before taking more disruptive actions like blocking traffic or running a scan.

Answer

Run a full antivirus scan on the server.

Answer

Block all outbound traffic from the server at the firewall.

Answer

Review the server's event logs for failed login attempts.

Question 4

A security analyst notices unusual outbound traffic from a server that normally only communicates with internal clients. The traffic is encrypted and goes to an external IP address not on any blocklists. The analyst also finds a new scheduled task on the server that runs a PowerShell script. Which of the following best describes the analyst's immediate next step in the incident response process?

Accepted Answer

Disconnect the server from the network to contain the potential breach.. According to standard incident response frameworks such as NIST SP 800-61, containment is one of the first and most critical steps after detecting a potential compromise. The unusual encrypted outbound traffic and the unauthorized scheduled task are strong indicators of compromise (IOCs). Disconnecting the server from the network immediately helps prevent further data exfiltration, lateral movement, or additional damage. Other actions, such as running a scan, wiping the server, or notifying legal, are performed later in the process after containment and evidence preservation.

Answer

Wipe the server and restore from a known good backup.

Answer

Run a full antivirus scan on the server to identify malware.

Answer

Inform the legal department and law enforcement.

Question 5

A security analyst observes a critical server generating unusually high outbound traffic to an external IP address that is listed on a threat intelligence feed as a known command-and-control server. The analyst suspects the server is compromised. According to standard incident response procedures, what should the analyst do NEXT?

Accepted Answer

Isolate the server from the network to stop the communication. Option B is correct because isolating the server from the network immediately stops the outbound command-and-control (C2) communication, preventing data exfiltration and further compromise. This aligns with the first step in the NIST SP 800-61 incident response process—containment—before any eradication or recovery actions are taken. Rebooting or patching without isolation could destroy volatile evidence (e.g., memory-resident malware) and allow the attacker to persist or escalate.

Answer

Reboot the server to clear any malicious processes from memory

Answer

Apply the latest security patches to the server

Answer

Ignore the alert because the external IP might be a false positive

Question 6

A security analyst receives an alert from the email security gateway about a message sent to an employee. The email has an attachment named 'Invoice_Q4_2024.exe'. The employee claims they did not open the attachment, and the email appears to come from a known vendor's domain but the sender address has a slight typo. Which type of attack is most likely being attempted?

Accepted Answer

Phishing. The email contains a malicious executable attachment ('Invoice_Q4_2024.exe') and uses a spoofed sender address with a typo to impersonate a known vendor. This is a classic phishing attack because it is a broad, unsolicited attempt to trick the recipient into executing malware, without any personalized targeting beyond the generic invoice lure. The slight typo in the sender domain indicates domain spoofing, a common phishing technique that exploits the lack of SPF/DKIM validation.

Answer

Spear phishing

Answer

Smishing

Answer

Vishing

Question 7

A security analyst receives an automated alert indicating that a standard user account logged in from a geographic location that is unusual for the user, and the login occurred at 3:00 AM local time. The analyst has not yet verified whether this was a successful login or if any additional suspicious activity occurred. According to standard incident response procedures, what should the analyst do NEXT?

Accepted Answer

Review the account's recent activity for signs of compromise.. The correct next step is to review the account's recent activity to gather more context. According to the NIST incident response process (Preparation, Detection & Analysis, Containment, Eradication & Recovery, Post-Incident Activity), after detection the analyst should perform analysis to validate the alert and determine the scope. Reviewing recent logins, accessed files, and other actions helps decide if containment is needed. Immediately disabling the account (A) could be premature if the alert is a false positive or if the user is traveling. Conducting a full forensic analysis (B) is too resource-intensive for a single alert without further evidence. Reporting to law enforcement (D) is not appropriate at this stage; that would occur after a confirmed incident that meets legal thresholds.

Answer

Disable the user account immediately and reset the password.

Answer

Conduct a full forensic analysis of the user's workstation.

Answer

Report the incident to law enforcement.

Question 8

A security architect at a retail company is deploying a new e-commerce platform that processes credit card payments. The architect needs to minimize the scope of the PCI DSS assessment. The platform consists of a web server, an application server, and a database server. The cardholder data (credit card numbers) will be processed and stored only on the database server. Which of the following network architecture designs would best reduce the PCI DSS scope?

Accepted Answer

Place the database server in a separate, isolated network segment with a dedicated firewall that blocks all traffic except from the application server on the required port.. Option B is correct because isolating the database server in a separate network segment with a dedicated firewall that restricts traffic to only the application server on the required port creates a clear network segmentation boundary. This segmentation limits the cardholder data environment (CDE) to just the database server, thereby minimizing the scope of the PCI DSS assessment by excluding the web and application servers from the CDE.

Answer

Place all servers in the same VLAN and apply a host-based firewall on the database server.

Answer

Encrypt all data in transit using TLS and at rest using AES-256.

Answer

Implement network intrusion detection systems on all network segments.

Question 9

A security architect is designing a defense strategy for a database containing sensitive customer records. The architect implements a network firewall to restrict inbound traffic to only the application server, enforces file-level encryption for the database files, requires multi-factor authentication for all administrative access, and deploys a database activity monitoring system to alert on unusual queries. Which security principle is the architect primarily applying?

Accepted Answer

Defense in depth. The architect is applying defense in depth by layering multiple independent security controls: a network firewall, file-level encryption, multi-factor authentication, and database activity monitoring. This strategy ensures that if one control fails, others still provide protection, which is the core principle of defense in depth. Each layer addresses a different attack vector, making it significantly harder for an attacker to compromise the database.

Answer

Least privilege

Answer

Separation of duties

Answer

Fail safe

Question 10

A security operations analyst is tuning a SIEM correlation rule designed to detect brute-force password attacks against domain user accounts. The current rule generates an alert when a single user account has more than 10 failed logon attempts within a 5-minute window. The SOC team is overwhelmed by thousands of alerts each day, the vast majority of which are triggered by legitimate users who accidentally mistype their passwords. Which of the following modifications to the rule would most effectively reduce false positives while still detecting actual brute-force attacks?

Accepted Answer

Modify the rule to trigger only when the failed attempts originate from multiple distinct source IP addresses.. Option B is correct because brute-force attacks often distribute failed attempts across multiple source IP addresses to evade detection, while legitimate users typically mistype from a single IP. By requiring failed attempts from multiple distinct source IPs, the rule filters out accidental mistypes (single IP) and still catches distributed brute-force attacks, which is a common evasion technique.

Answer

Increase the failed attempt threshold to 20 attempts within the same 5-minute window.

Answer

Modify the rule to trigger only when the failed attempts are against multiple distinct user accounts.

Answer

Add an exception to suppress alerts for any user account that has a valid password reset request within the same time period.

Question 11

A security team suspects a rootkit after seeing hidden processes, boot-time persistence, and altered system files on a laptop. What is the best next step after confirming the suspicion?

Accepted Answer

Disconnect the laptop, then reimage it from a known-good source. Once a rootkit is confirmed, the system's integrity is compromised at the kernel or boot level, making any software-based cleanup unreliable. Reimaging from a known-good source ensures all malicious code, including bootkits and hidden processes, is completely eradicated. This aligns with the SY0-701 domain of incident response, where containment and eradication require a trusted baseline.

Answer

Run a quick cleanup script and return the laptop to the user

Answer

Disable the user account and leave the device in place

Answer

Delete the suspected hidden files manually from Windows Explorer

Question 12

A security team wants to reduce repeated user mistakes after a phishing campaign without overwhelming employees with long training sessions. Which approach is best?

Accepted Answer

Send a short, targeted reminder to the affected users with a clear reporting path. Option A is correct because it applies targeted, immediate reinforcement to the specific users who made mistakes, using a short reminder that clarifies the reporting path. This approach leverages just-in-time training, which has been shown to improve retention and behavior change without overwhelming employees. It directly addresses the root cause—repeated user errors—by providing a clear, actionable step (e.g., 'Report suspicious emails using the PhishAlarm button') rather than generic awareness.

Answer

Require every employee to attend a full-day security class immediately

Answer

Wait until the next annual training cycle and do nothing now

Answer

Disable email access for all employees until they pass a new test

Question 13

A SIEM alert shows 120 failed logins for one user account from three different countries within 10 minutes, followed by a successful login. What should the analyst do first?

Accepted Answer

Verify the activity with related logs and check whether the account owner confirms the login.. Option B is correct because the analyst must first validate the alert by correlating the SIEM data with additional logs (e.g., authentication logs, firewall logs) and contacting the account owner to confirm whether the successful login was legitimate. This follows the incident response process of verification before action, preventing unnecessary disruption if the activity is benign (e.g., the user traveling with VPN).

Answer

Close the alert because the login eventually succeeded.

Answer

Immediately delete the account to stop further access.

Answer

Reimage the user's laptop before collecting any information.

Question 14

A SIEM alert flags an interactive logon to a Windows file server from a service account that normally only runs scheduled tasks. The alert occurred at 01:12, but the maintenance window for that server is every Sunday at 02:00. The account also accessed a different server five minutes later. What should the analyst do first?

Accepted Answer

Correlate the activity with the change calendar, scheduled-task logs, and ticketing records before escalating.. Option B is correct because the analyst must first gather context to determine if the alert is a false positive or a genuine security incident. The interactive logon at 01:12 is outside the scheduled maintenance window (Sunday 02:00), and the account’s subsequent access to another server warrants correlation with change calendars, scheduled-task logs, and ticketing records to verify if the activity was authorized. This step prevents unnecessary disruption while ensuring that any anomalous behavior is properly investigated before escalation.

Answer

Ignore the alert because service accounts often authenticate outside normal business hours.

Answer

Immediately disable the service account to stop any potential attacker activity.

Answer

Reimage the file server to remove any possible compromise.

Question 15

A SIEM alert shows 300 failed logins against the same VPN account from one source IP over 12 minutes, followed by a successful login from that same IP and a spike in mailbox access. The user says they did not initiate the session. What is the most likely cause?

Accepted Answer

A brute-force attack that eventually guessed the correct password. The sequence of 300 failed logins from a single source IP against one VPN account, followed by a successful login and abnormal mailbox access, is the classic pattern of a brute-force attack. The attacker systematically tried many passwords until they guessed the correct one, then used the compromised credentials to access the user's mailbox. The user's denial confirms the session was unauthorized, ruling out legitimate reconnection or synchronization.

Answer

A password-spraying attempt against many different accounts

Answer

A normal VPN reconnect after a brief network outage

Answer

A false positive caused by email synchronization