CAS-004 Exam Dumps - CompTIA Advanced Security Practitioner (CASP+) Exam

To prioritize server replacements based on the likelihood of failure, the MTBF (Mean Time Between Failures) metric is most appropriate. MTBF provides a measure of the average time a server or system is expected to operate before experiencing failure. This allows the management team to assess which servers are more likely to fail soon, irrespective of the application criticality, and thus should be replaced first. CASP+ highlights the use of MTBF in hardware lifecycle management and risk assessments.

References:

CASP+ CAS-004 Exam Objectives: Domain 1.0 – Risk Management (MTBF in Hardware Lifecycle)

CompTIA CASP+ Study Guide: Server Risk Assessments Using MTBF and Reliability Metrics

https://eklitzke.org/memory-protection-and-aslr

ASLR (Address Space Layout Randomization) is a technology that can mitigate the manipulation of memory segments caused by a buffer overflow attack. ASLR randomizes the location of memory segments, such as the stack, heap, or libraries, making it harder for an attacker to predict or control where to inject malicious code or overwrite memory segments. NX bit (No-eXecute bit) is a technology that can mitigate the execution of malicious code injected by a buffer overflow attack. NX bit marks certain memory segments as non-executable, preventing an attacker from running code in those segments. DEP (Data Execution Prevention) is a technology that can mitigate the execution of malicious code injected by a buffer overflow attack. DEP uses hardware and software mechanisms to mark certain memory regions as data-only, preventing an attacker from running code in those regions. HSM (Hardware Security Module) is a device that can provide cryptographic functions and key storage, but it does not mitigate the manipulation of memory segments caused by a buffer overflow attack. Verified References: https://www.comptia.org/blog/what-is-aslr https://partners.comptia.org/docs/default-source/resources/casp-content-guide

The best way to reduce the risk of terminated employees’ accounts not being disabled is to automate the process by integrating Active Directory (AD) with the human resources information system (HRIS). By automating this integration, when an employee’s termination date is updated in the HRIS, the corresponding account in AD is automatically disabled, reducing the risk of accounts being left active after an employee leaves the organization. CASP+ highlights the importance of automating security processes, especially for user access management, to minimize human error and ensure timely action.

References:

CASP+ CAS-004 Exam Objectives: Domain 2.0 – Enterprise Security Operations (Automation of User Access Management)

CompTIA CASP+ Study Guide: Integration of HR Systems and Active Directory for Account Management

A Virtual Desktop Infrastructure (VDI) solution meets all the listed requirements: reducing patch management, using standard configurations, allowing for custom resource configurations, and providing access from multiple device types. VDI allows centralized management of desktop environments, where patches and updates can be applied once and distributed across all virtual desktops. It also supports flexible resource configurations and secure remote access from various devices. CASP+ highlights VDI as a solution for centralized, secure desktop management that meets modern enterprise needs for mobility and security.

References:

CASP+ CAS-004 Exam Objectives: Domain 3.0 – Enterprise Security Architecture (VDI for Secure Remote Desktop Management)

CompTIA CASP+ Study Guide: Virtual Desktop Infrastructure for Centralized Management and Security

Utilizing code signing by a trusted third party and making the DACL (discretionary access control list) read-only are actions that the developer can perform to maintain integrity to each module of a program and ensure the code cannot be altered by malicious users. Code signing is a technique that uses digital signatures to verify the authenticity and integrity of code, preventing unauthorized modifications or tampering. A trusted third party, such as a certificate authority, can issue and validate digital certificates for code signing. A DACL is an attribute of an object that defines the permissions granted or denied to users or groups for accessing or modifying the object. Making the DACL read-only can prevent unauthorized users or groups from changing the permissions or accessing the code. Implementing certificate-based authentication is not an action that the developer can perform to maintain integrity to each module of a program and ensure the code cannot be altered by malicious users, but a method for verifying the identity of users or devices based on digital certificates, preventing unauthorized access or impersonation. Verifying MD5 hashes is not an action that the developer can perform to maintain integrity to each module of a program and ensure the code cannot be altered by malicious users, but a method for checking the integrity of files based on cryptographic hash functions, detecting accidental or intentional changes or corruption. Compressing the program with a password is not an action that the developer can perform to maintain integrity to each module of a program and ensure the code cannot be altered by malicious users, but a method for reducing the size of files and protecting them with a password, preventing unauthorized access or extraction. Encrypting with 3DES is not an action that the developer can perform to maintain integrity to each module of a program and ensure the code cannot be altered by malicious users, but a method for protecting the confidentiality of data based on symmetric-key encryption algorithms, preventing unauthorized disclosure or interception. Verified References: https://www.comptia.org/blog/what-is-code-signing https://partners.comptia.org/docs/default-source/resources/casp-content-guide

Embedded facility automation systems are often difficult to upgrade because they are constrained by available compute. These systems typically have limited processing power, memory, and storage, which restricts the ability to implement modern security measures, such as encryption, software updates, or advanced security controls. Security engineers may be unable to apply patches or updates without exceeding the system’s capacity. CASP+ discusses the challenges posed by resource-constrained devices, particularly in embedded systems and IoT environments, where upgrading security can be difficult due to hardware limitations.

References:

CASP+ CAS-004 Exam Objectives: Domain 3.0 – Enterprise Security Architecture (Embedded System Security and Constraints)

CompTIA CASP+ Study Guide: Managing Security for Resource-Constrained Embedded Systems

Fuzz testing identifies vulnerabilities by providing unexpected or random input to the application, exposing edge cases and additional attack vectors. This aligns with CASP+ objective 1.5, emphasizing proactive vulnerability discovery techniques in application security.