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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Vulnerability Management | 34% | - Vulnerability identification
|
| Topic 2: Incident Response and Management | 33% | - Reporting and communication
|
| Topic 3: Security Operations | 33% | - Monitoring security environments
|
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NEW QUESTION # 49
A security analyst is supporting an embedded software team. Which of the following is the best recommendation to ensure proper error handling at runtime?
Answer: D
Explanation:
Performing a code review is the best recommendation to ensure proper error handling at runtime for an embedded software team. A code review is a process of examining and evaluating source code by one or more developers other than the original author. A code review can help to identify and fix any errors, bugs, vulnerabilities, or inefficiencies in the code before it is deployed or executed. A code review can also help to ensure that the code follows the best practices, standards, and guidelines for error handling at runtime .
NEW QUESTION # 50
During a recent site survey. an analyst discovered a rogue wireless access point on the network.
Which of the following actions should be taken first to protect the network while preserving evidence?
Answer: D
Explanation:
A rogue access point is a wireless access point that has been installed on a network without the authorization or knowledge of the network administrator. A rogue access point can pose a serious security risk, as it can allow unauthorized users to access the network, intercept network traffic, or launch attacks against the network or its devices. The first action that should be taken to protect the network while preserving evidence is to disconnect the rogue access point from the network.
This will prevent any further damage or compromise of the network by blocking the access point from communicating with other devices or users. Disconnecting the rogue access point will also preserve its state and configuration, which can be useful for forensic analysis and investigation.
Disconnecting the rogue access point can be done physically by unplugging it from the network port or wirelessly by disabling its radio frequency.
NEW QUESTION # 51
The SOC receives a number of complaints regarding a recent uptick in desktop error messages that are associated with workstation access to an internal web application. An analyst, identifying a recently modified XML file on the web server, retrieves a copy of this file for review, which contains the following code:
Which of The following XML schema constraints would stop these desktop error messages from appearing?
Answer: B
Explanation:
The XML file contains JavaScript embedded within a <description> tag that executes an alert message, which is a common Cross-Site Scripting (XSS) attack vector. The issue occurs because the XML schema does not restrict the input to safe characters, allowing arbitrary script execution when the XML file is processed by a vulnerable application.
Solution: Implement Input Validation Using an XML Schema Constraint
Option B enforces a whitelist approach by allowing only alphanumeric characters and spaces ([a-zA-Z 0-9]*).
This prevents the inclusion of malicious JavaScript or special characters such as <, >, or &, which are required for XSS injection.
Why are the other options incorrect?
Option A: Restricts input to a Social Security Number (SSN) format ([0-9]{3}-[0-9]{2}-[0-9]{4}). While it prevents JavaScript injection, it is too restrictive and would break legitimate text-based content in the XML.
Option C: Restricts input to only numeric values ([0-9]*), preventing JavaScript injection but also breaking legitimate non-numeric content in the <description> field.
Option D: Restricts input to a single positive integer, which does not align with the expected text-based content.
Thus, Option B is the correct answer, as it enforces proper input validation while still allowing expected text input.
NEW QUESTION # 52
After a risk assessment, a server was found hosting a vulnerable legacy system that has the following characteristics:
* There is no patch or official fix available from the vendor.
* There is no official support provided by the vendor.
* Customers consider the system mission critical.
Which of the following actions will best decrease the risk posed by the legacy system?
Answer: D
Explanation:
Because the system is mission critical and there is no patch and no vendor support, the best risk-reduction approach is to implement compensating controls. Compensating controls are specifically recommended when immediate remediation is not possible, and for legacy systems where patches may not exist.
The Sybex CySA+ Study Guide states this directly:
Exact extract (Sybex Study Guide): "Legacy systems may not have patches available, meaning that compensating controls may be the only option available." Secbay Press also explains that legacy systems may lack vendor support/updates and that mitigation strategies like compensating controls or isolation are essential to reduce risk:
Exact extract (Secbay Press): "Legacy systems may lack vendor support and updates, making mitigation strategies essential... Implement specific mitigation strategies for legacy systems, such as compensating controls or isolation." And Secbay provides a legacy-system compensating control case study showing exactly the kinds of controls mentioned in option D-segmentation/isolation, access controls, and enhanced monitoring/continuous monitoring:
Exact extract (Secbay Press): "Selected compensating controls, such as network segmentation, intrusion detection systems, and enhanced monitoring, to mitigate the risks..." Why the other options are not "best" given the constraints:
A (Decommission immediately): may be ideal long-term, but conflicts with "mission critical" (and
"immediately" is often unrealistic for business operations).
B (Block inbound/allow outbound): helps somewhat but is incomplete and can still allow command-and- control or exfiltration outbound; also doesn't address restricted admin access/monitoring comprehensively.
C (WAF): useful only if this is specifically a web application exposure; the scenario says "legacy system" broadly. Compensating controls are the most complete and universally applicable choice.
References (CompTIA CySA+ CS0-003 documents / study guides used):
Chapple/Seidl, CompTIA CySA+ Study Guide (CS0-003): legacy systems may have no patches; compensating controls may be the only option Secbay Press, CompTIA CySA+ Exam Prep Guide (CS0-003): legacy systems lack support/updates; use compensating controls or isolation Secbay Press, CompTIA CySA+ Exam Prep Guide (CS0-003): compensating controls for legacy systems include segmentation/isolation and enhanced/continuous monitoring
NEW QUESTION # 53
An organization's Chief Information Security Officer (CISO) is organizing a tabletop drill. The CISO has included several other executives in the meeting invitation for the drill, as required.
Which of the following is the best reason for including the Chief Communications Officer?
Answer: D
Explanation:
The Chief Communications Officer is responsible for managing external communications, including press releases and public messaging. Involving this role in a tabletop exercise ensures that decisions about when and how to communicate incidents are planned to protect the organization's brand reputation.
NEW QUESTION # 54
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