CAS-004 Online Practice Questions

Explanation:
Field masking is a technique that hides or obscures part of the information in a data field, such as a password, credit card number, or social security number. Field masking can be used to protect sensitive or confidential data from unauthorized access or disclosure, while still allowing authorized users to view or verify the data.
Field masking should be implemented to authenticate employees who call in remotely by allowing the help desk staff to view partial information about employees, because field masking would: Enable the help desk staff to verify the identity of the employees by asking them to provide some characters or digits from their data fields, such as their employee ID or email address.
Prevent the help desk staff from viewing the full information about employees, which may be considered sensitive and subject to privacy regulations or policies.
Reduce the risk of data leakage, theft, or misuse by limiting the exposure of sensitive data to only those who need it.

Explanation:
SD-WAN (Software-Defined Wide Area Network) is a technology that allows organizations to use multiple, low-cost Internet connections to create a secure and dynamic WAN. SD-WAN can provide benefits such as lower costs, higher performance, and easier management compared to traditional WAN technologies, such as MPLS (Multiprotocol Label Switching).
However, SD-WAN also introduces some potential risks, such as:
The reliability and security of the Internet connections, which may vary depending on the location, provider, and traffic conditions.
The compatibility and interoperability of the SD-WAN hardware and software, which may come from different vendors or use different standards.
The availability and quality of the SD-WAN provider’s support, which may depend on the provider’s size, reputation, and outsourcing practices.
In this case, the CISO would most likely identify the risk that the SD-WAN provider uses a third party for support, because this could:
Affect the organization’s ability to resolve issues or request changes in a timely and effective manner. Expose the organization’s network data and configuration to unauthorized or malicious parties. Increase the complexity and uncertainty of the SD-WAN service level agreement (SLA) and contract terms.

Explanation:
Implementing decoy files on adjacent hosts is a technique that can entice the adversary to uncover malicious activity, as it can lure them into accessing fake or irrelevant data that can trigger an alert or reveal their presence. Decoy files are also known as honey files or honeypots, and they are part of deception technology. Deploying a SOAR (Security Orchestration Automation and Response) tool may not entice the adversary to uncover malicious activity, as SOAR is mainly focused on automating and streamlining security operations, not deceiving attackers. Modifying user password history and length requirements may not entice the adversary to uncover malicious activity, as it could affect legitimate users and not reveal the attacker’s actions. Applying new isolation and segmentation schemes may not entice the adversary to uncover malicious activity, as it could limit their access and movement, but not expose their presence.
Verified Reference:
https://www.comptia.org/blog/what-is-deception-technology
https://partners.comptia.org/docs/default-source/resources/casp-content-guide