CompTIA SY0-701 Practice Test

Explanation: The first step in responding to a cybersecurity incident, particularly when malware is detected, is to contain the impacted hosts. This action prevents the spread of malware to other parts of the network, limiting the potential damage while further investigation and remediation actions are planned. References = CompTIA Security+ SY0-701 study materials, particularly on incident response procedures and the importance of containment in managing security incidents.

Explanation: The logs show an SQL injection attack. The first step is to verify if new accounts have been created, indicating a successful injection.

Explanation: To prevent the issuance of an MFA bypass code to an attacker posing as an employee, implementing identity proofing would be most effective. Identity proofing involves verifying the identity of individuals before granting access or providing sensitive information. Identity proofing: Ensures that the person requesting the MFA bypass is who they claim to be, thereby preventing social engineering attacks where attackers pose as legitimate employees.

Explanation: A service level agreement (SLA) is a type of agreement that defines the expectations and responsibilities between a service provider and a customer. It usually includes the quality, availability, and performance metrics of the service, as well as the time frame in which the provider needs to respond to service requests, incidents, or complaints. An SLA can help ensure that the customer receives the desired level of service and that the provider is accountable for meeting the agreed-upon standards. References: Security+ (Plus) Certification | CompTIA IT Certifications, under “About the exam”, bullet point 3: “Operate with an awareness of applicable regulations and policies, including principles of governance, risk, and compliance.” CompTIA Security+ Certification Kit: Exam SY0-701, 7th Edition, Chapter 1, page 14: “Service Level Agreements (SLAs) are contracts between a service provider and a customer that specify the level of service expected from the service provider.”

Explanation: Within an organization's Software Development Life Cycle (SDLC), an Information Security Policy is a vital component. It outlines the rules and procedures for ensuring that the organization’s IT assets and data are protected throughout the development process. Ensuring secure coding practices, access controls, and regular security testing is fundamental in preventing vulnerabilities in applications. Other options like service-level agreements and branch protection requirements are less likely to be integral to SDLC processes. Penetration testing methodology, while useful, is generally considered outside the scope of the SDLC.

Explanation: Serverless architecture allows companies to deploy code without managing the underlying infrastructure. This approach significantly reduces the time and expense involved in code deployment because developers can focus solely on writing code, while the cloud provider manages the servers, scaling, and maintenance. Serverless computing also enables automatic scaling and pay-per-execution billing, which further optimizes costs.

Explanation: To ensure the integrity of compiled binaries in the production environment, the best security measure is code signing. Code signing uses digital signatures to verify the authenticity and integrity of the software, ensuring that the code has not been tampered with or altered after it was signed. Code signing: Involves signing code with a digital signature to verify its authenticity and integrity, ensuring the compiled binaries have not been altered. Input validation: Ensures that only properly formatted data enters an application but does not verify the integrity of compiled binaries. SQL injection: A type of attack, not a security measure. Static analysis: Analyzes code for vulnerabilities and errors but does not ensure the integrity of compiled binaries in production. Reference: CompTIA Security+ SY0-701 Exam Objectives, Domain 1.4 - Explain the importance of using appropriate cryptographic solutions (Code signing).

Explanation: The installation of a RADIUS server (Remote Authentication Dial-In User Service) is primarily associated with the security concept of AAA, which stands for Authentication, Authorization, and Accounting. RADIUS servers are used to manage user credentials and permissions centrally, ensuring that only authenticated and authorized users can access network resources, and tracking user activity for accounting purposes.

Explanation: An external examination (also known as an external audit or external review) is the best method for the Chief Information Security Officer (CISO) to gain an understanding of how the company’s security policies compare to external regulatory requirements. External examinations are conducted by third-party entities that assess an organization’s compliance with laws, regulations, and industry standards. Penetration tests focus on identifying vulnerabilities, not compliance. Internal audits assess internal controls but are not impartial or focused on regulatory requirements. Attestation is a formal declaration but does not involve the actual evaluation of compliance.

Explanation: When implementing a product that offers protection against Distributed Denial of Service (DDoS) attacks, the security concept being followed is availability. DDoS protection ensures that systems and services remain accessible to legitimate users even under attack, maintaining the availability of network resources.
Availability: Ensures that systems and services are accessible when needed, which is directly addressed by DDoS protection. Non-repudiation: Ensures that actions or transactions cannot be denied by the involved parties, typically achieved through logging and digital signatures. Integrity: Ensures that data is accurate and has not been tampered with. Confidentiality: Ensures that information is accessible only to authorized individuals. Reference: CompTIA Security+ SY0-701 Exam Objectives, Domain 1.2 - Summarize fundamental security concepts (Availability).