CSSLP ISC Certified Secure Software Lifecycle Professional Free Practice Exam Questions (2025 Updated)

An Information System Security Officer (ISSO) plays the role of a supporter. The responsibilities of an Information System Security Officer (ISSO) are as follows: Manages the security of the information system that is slated for Certification & Accreditation (C&A). Insures the information systems configuration with the agency's information security policy. Supports the information system owner/information owner for the completion of security-related responsibilities. Takes part in the formal configuration management process. Prepares Certification & Accreditation (C&A) packages. An Information System Security Engineer (ISSE) plays the role of an advisor. The responsibilities of an Information System Security Engineer are as follows:

Provides view on the continuous monitoring of the information system. Provides advice on the impacts of system changes. Takes part in the configuration management process. Takes part in the development activities that are required to implement system changes. Follows approved system changes.

Of all the choices only this answer is accurate. The PMBOK clearly states that the data must be accurate and unbiased to be credible. Answer: D is incorrect. This is not a valid statement about the qualitative risk analysis data. Answer: A is incorrect. This is not a valid statement about the qualitative risk analysis data. Answer: B is incorrect. This is not a valid statement about the qualitative risk analysis data.

An Intrusion detection system (IDS) is software and/or hardware designed to detect unwanted attempts at accessing, manipulating, and/or disabling of computer systems, mainly through a network, such as the Internet. These attempts may take the form of attacks, as examples, by crackers, malware and/or disgruntled employees. An IDS cannot directly detect attacks within properly encrypted traffic. An intrusion detection system is used to detect several types of malicious behaviors that can compromise the security and trust of a computer system. This includes network attacks against vulnerable services, data driven attacks on applications, host based attacks such as privilege escalation, unauthorized logins and access to sensitive files, and malware (viruses, trojan horses, and worms). Answer: D is incorrect. Access Control List (ACL) is the most commonly used object in Cisco IOS. It filters packets or network traffic by controlling whether routed packets are forwarded or blocked at the router's interfaces. According to the criteria specified within the access lists, router determines whether the packets to be forwarded or dropped. Access control list criteria could be the source or destination address of the traffic or other information. The types of Cisco ACLs are Standard IP, Extended IP, IPX, Appletalk, etc. Answer: B is incorrect. Internet Protocol Security (IPSec) is a method of securing data. It secures traffic by using encryption and digital signing. It enhances the security of data as if an IPSec packet is captured, its contents cannot be read. IPSec also provides sender verification that ensures the certainty of the datagram's origin to the receiver. Answer: A is incorrect. Direct-attached storage (DAS) is a digital storage system that is directly attached to a server or workstation, without using a storage network.

Procedural controls include incident response processes, management oversight, security awareness, and training. Answer: B is incorrect. Physical controls include fences, doors, locks, and fire extinguishers. Answer: D is incorrect. Technical controls include user authentication (login) and logical access controls, antivirus software, and firewalls. Answer: A is incorrect. The legal and regulatory, or compliance controls, include privacy laws, policies, and clauses.

The quantitative risk analysis process is repeated after the plan risk responses to determine if the overall project risk has been satisfactorily decreased. Answer: D is incorrect. Qualitative risk analysis is not repeated after the plan risk response process. Answer: B is incorrect. Risk identification is an ongoing process that happens throughout the project. Answer: C is incorrect. Risk response implementation is not a project management process.

NIST SP 800-42 provides a guideline on network security testing. Answer: E, D, B, F, and C are incorrect. NIST has developed a suite of documents for conducting Certification & Accreditation (C&A). These documents are as follows: NIST Special Publication 800-37: This document is a guide for the security certification and accreditation of Federal Information Systems. NIST Special Publication 800-53: This document provides a guideline for security controls for Federal Information Systems. NIST Special Publication 800-53A. This document consists of techniques and procedures for verifying the effectiveness of security controls in Federal Information System. NIST Special Publication 800-59: This document is a guideline for identifying an information system as a National Security System. NIST Special Publication 800-60: This document is a guide for mapping types of information and information systems to security objectives and risk levels.

Certification and Accreditation (C&A or CnA) is a process for implementing information security. It is a systematic procedure for evaluating, describing, testing, and authorizing systems prior to or after a system is in operation. The C&A process is used extensively in the U.S. Federal Government. Some C&A processes include FISMA, NIACAP, DIACAP, and DCID 6/3. Certification is a comprehensive assessment of the management, operational, and technical security controls in an information system, made in support of security accreditation, to determine the extent to which the controls are implemented correctly, operating as intended, and producing the desired outcome with respect to meeting the security requirements for the system. Accreditation is the official management decision given by a senior agency official to authorize operation of an information system and to explicitly accept the risk to agency operations (including mission, functions, image, or reputation), agency assets, or individuals, based on the implementation of an agreed-upon set of security controls.

The service-oriented modeling framework (SOMF) has been proposed by author Michael Bell as a service-oriented modeling language for software development that employs disciplines and a holistic language to provide strategic solutions to enterprise problems. The service-oriented modeling framework (SOMF) is a service-oriented development life cycle methodology. It offers a number of modeling practices and disciplines that contribute to a successful service-oriented life cycle management and modeling. The service-oriented modeling framework illustrates the major elements that identify the "what to do" aspects of a service development scheme. Answer: B is incorrect. The service-oriented architecture (SOA) is a flexible set of design principles used during the phases of systems development and integration. Answer: D is incorrect. The service-oriented modeling and architecture (SOMA) includes an analysis and design method that extends traditional object-oriented and component-based analysis and design methods to include concerns relevant to and supporting SOA. Answer: C is incorrect. SABSA (Sherwood Applied Business Security Architecture) is a framework and methodology for Enterprise Security Architecture and Service Management. It is a model and a methodology for developing risk-driven enterprise information security architectures and for delivering security infrastructure solutions that support critical business initiatives.

In order to accomplish the task, you should limit the number of Syslog messages or TCP connections from a specific source for a certain time period. This will prevent a denial of service (DoS) for the Syslog server and the loss of Syslog messages from other sources. Answer: D is incorrect. You can encrypt rotated log files automatically using third-party or OS mechanisms to protect data confidentiality. Answer: A is incorrect. You can use a different message format other than Syslog in order to accept data for aggregating data from hosts that do not support Syslog. Answer: B is incorrect. You can enable the storage of log entries in both traditional Syslog files and a database for creating a database storage for logs.

C and C++ programming languages are unmanaged code. Unmanaged code is compiled into machine code and directly executed by the CPU of a computer system. Answer: C and B are incorrect. Java EE and Microsoft.Net are compiled into an intermediate code format.

The information system level is the tier 3. It addresses risks from an information system perspective, and is guided by the risk decisions at tiers 1 and 2. Risk decisions at tiers 1 and 2 impact the ultimate selection and deployment of requisite safeguards. This also has an impact on the countermeasures at the information system level. The RMF primarily operates at tier3 but it can also have interactions at tiers 1 and 2. Answer: A is incorrect. It is an invalid Tier description. Answer: D is incorrect. The Organization Level is the Tier 1, and it addresses risks from an organizational perspective. Answer: C is incorrect. The mission and business process level is the Tier 2, and it addresses risks from the mission and business process perspective.

The creation of System Authorization Plan (SAP) is mandated by System Authorization. System Authorization Plan (SAP) is a comprehensive and uniform approach to the System Authorization Process. It consists of four phases: Phase 1 - Pre-certification Phase 2 - Certification Phase 3 - Authorization Phase 4 - Post-Authorization

Port scanning identifies open doors to a computer. Hackers and crackers use this technique to obtain unauthorized information.

Port scanning is the first basic step to get the details of open ports on the target system. Port scanning is used to find a hackable server with a hole or vulnerability. A port is a medium of communication between two computers. Every service on a host is identified by a unique 16-bit number called a port. A port scanner is a piece of software designed to search a network host for open ports. This is often used by administrators to check the security of their networks and by hackers to identify running services on a host with the view to compromising it. Port scanning is used to find the open ports, so that it is possible to search exploits related to that service and application. Answer: D is incorrect. Phreaking is a process used to crack the phone system. The main aim of phreaking is to avoid paying for long- distance calls. As telephone networks have become computerized, phreaking has become closely linked with computer hacking. This is sometimes called the H/P culture (with H standing for Hacking and P standing for Phreaking). Answer: A is incorrect. It is defined as a system using a physical attribute for authenticating. Only authorized users are provided access to network or application. Answer: B is incorrect. It is described as a form of eavesdropping in which special equipments are used to pick up the telecommunication signals or data within a computer device.

The vulnerability, port, and network scanning tools are used in penetration testing. Vulnerability scanning is a process in which a Penetration Tester uses various tools to assess computers, computer systems, networks or applications for weaknesses. There are a number of types of vulnerability scanners available today, distinguished from one another by a focus on particular targets. While functionality varies between different types of vulnerability scanners, they share a common, core purpose of enumerating the vulnerabilities present in one or more targets. Vulnerability scanners are a core technology component of Vulnerability management. Port scanning is the first basic step to get the details of open ports on the target system. Port scanning is used to find a hackable server with a hole or vulnerability. A port is a medium of communication between two computers. Every service on a host is identified by a unique 16-bit number called a port. A port scanner is a piece of software designed to search a network host for open ports. This is often used by administrators to check the security of their networks and by hackers to identify running services on a host with the view to compromising it. Port scanning is used to find the open ports, so that it is possible to search exploits related to that service and application. Network scanning is a penetration testing activity in which a penetration tester or an attacker identifies active hosts on a network, either to attack them or to perform security assessment. A penetration tester uses various tools to identify all the live or responding hosts on the network and their corresponding IP addresses. Answer: C is incorrect. This option comes under vulnerability scanning.

Software Assurance Acquisition process defines the level of confidence that software is free from vulnerabilities. It is designed into the software or accidentally inserted at anytime during its lifecycle, and the software works in a planned manner. According to the U.S. Department of Defense and Department of Homeland Security Acquisition and Outsourcing Working Group, the Software Assurance Acquisition process contains the following phases: 1.Planning 2.Contracting 3.Monitoring and acceptance 4.Follow-on

Preventive transformation increases the difficulty for a de-obfuscation tool so that it cannot extract the true application from the obfuscated version.

Exception handling is a computer hardware mechanism or programming language construct that handles the occurrence of events. These events occur during the software execution process and interrupt the instruction flow. Exception handling performs the specific activities for managing the exceptional events.

There are two types of compositional constructs: 1.External constructs: The various types of external constructs are as follows: Cascading: In this type of external construct, one system gains the input from the output of another system. Feedback: In this type of external construct, one system provides the input to another system, which in turn feeds back to the input of the first system. Hookup: In this type of external construct, one system communicates with another system as well as with external entities. 2.Internal constructs: The internal constructs include intersection, union, and difference.

The business continuity plan development refers to the utilization of the information collected in the Business Impact Analysis (BIA) for the creation of the recovery strategy plan to support the critical business functions. The information gathered from the BIA is mapped out to make a strategy for creating a continuity plan. The business continuity plan development process includes the areas of plan implementation, plan testing, and ongoing plan maintenance. This phase also consists of defining and documenting the continuity strategy. Answer: C is incorrect. The scope and plan initiation process in BCP symbolizes the beginning of the BCP process. It emphasizes on creating the scope and the additional elements required to define the parameters of the plan. The scope and plan initiation phase embodies a check of the company's operations and support services. The scope activities include creating a detailed account of the work required, listing the resources to be used, and defining the management practices to be employed. Answer: B is incorrect. The business impact assessment is a method used to facilitate business units to understand the impact of a disruptive event. This phase includes the execution of a vulnerability assessment. This process makes out the mission-critical areas and business processes that are important for the survival of business. It is similar to the risk assessment process. The function of a business impact assessment process is to create a document, which is used to help and understand what impact a disruptive event would have on the business. Answer: D is incorrect. The plan approval and implementation process involves creating enterprise-wide awareness of the plan, getting the final senior management signoff, and implementing a maintenance procedure for updating the plan as required.