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NEW QUESTION # 28
What does the %C&A metric measure in the Continuous Delivery Pipeline?
- A. The percent concurrent and accurate process times of each pipeline activity
- B. The percent of time downstream customers receive work that is usable as-is
- C. The percent of change averages of each pipeline activity
- D. The percent complete and average times of each pipeline activity
Answer: B
Explanation:
Explanation
The %C&A metric measures the percent of time downstream customers receive work that is usable as-is in the Continuous Delivery Pipeline. The %C&A metric is a measure of the quality of the work output from a process step. It indicates the percentage of time that the downstream customers receive work that is acceptable as is, without any rework or errors. To calculate the %C&A metric, the people responsible for the next step need to inspect the work output from the previous step and determine whether it meets the quality standards and expectations. They also need to provide feedback to the previous step on the defects or issues they find and how they affect the value stream. By measuring the %C&A metric, the enterprise can gain insight into the current state of the delivery process, such as the lead time, cycle time, throughput, quality, and waste. This insight can help the enterprise identify bottlenecks, dependencies, handoffs, delays, and inefficiencies that affect the flow of value. The %C&A metric can also help the enterprise understand how the flow of value can be improved by applying the principles and practices of DevOps, such as culture, automation, lean flow, measurement, and recovery. By improving the %C&A metric, the enterprise can increase customer satisfaction, reduce costs, accelerate time-to-market, and enhance business agility
NEW QUESTION # 29
Which statement illustrates the biggest bottleneck?
- A. WT = 1 day, AT = 0.5 day, %C&A = 90%
- B. WT = 10 days, AT = 0.5 day, %C&A = 100%
- C. WT = 5 days, AT = 2.5 days, %C&A = 100%
- D. WT = 6 days, AT = 5 days, %C&A = 100%
Answer: B
Explanation:
Explanation
According to the SAFe DevOps Practitioner 6.0 study guide and handbook, the statement that illustrates the biggest bottleneck is B. WT = 10 days, AT = 0.5 day, %C&A = 100%. This means that the value stream has the longest lead time (WT), the shortest actual time (AT), and the highest relative economic value (C&A).
These are the three metrics that are used to measure and optimize the value stream performance. The handbook states that "The three metrics used to measure and optimize value stream performance are WT, AT, and %C&A."1 Therefore, a bigger bottleneck indicates a lower value stream efficiency and a higher waste or inefficiency.
NEW QUESTION # 30
What is one recommended way to architect for operations?
Choose the correct option from below list
- A. Establish an architecture review board
- B. Require developers to support their own code
- C. Implement feature toggles
- D. Create detailed run books
Answer: C
Explanation:
Explanation
One of the recommended ways to architect for operations is to implement feature toggles, which are mechanisms that allow developers to turn features on or off without redeploying the code. Feature toggles enable faster and safer deployments, as well as experimentation and testing in production. They also allow the operations team to control when and how new features are released to the end users, based on business needs and market demand. Feature toggles can also be used to mitigate risks and roll back changes in case of errors or failures
NEW QUESTION # 31
When preparing a DevOps backlog, prioritizing features using WSJF includes which two factors? (Choose two.) Choose the correct option from below list
- A. Business value
- B. Total count of items on the Program Backlog
- C. Duration/job size
- D. Cost of delay
- E. Team velocity
Answer: C,D
Explanation:
Explanation
When preparing a DevOps backlog, prioritizing features using WSJF includes two factors: cost of delay and duration/job size. WSJF stands for Weighted Shortest Job First, which is a prioritization model used to sequence work for maximum economic benefit. WSJF is estimated as the relative cost of delay divided by the relative job duration. Cost of delay is the money lost by delaying or not doing a job for a specific time. It is a measure of the economic value of a job over time. Job duration is the time it takes to complete a job. Jobs that can deliver the most value in the shortest duration provide the best economic return. WSJF also considers other factors that contribute to the cost of delay, such as user and business value, time criticality, and risk reduction and/or opportunity enablement
NEW QUESTION # 32
Which two statements describe the purpose of value stream mapping? (Choose two.) Choose the correct option from below list
- A. To understand the Product Owner's priorities
- B. To visualize how value flows
- C. To create an understanding of the budget
- D. To create an action plan for continuos improvement
- E. To deliver incremental value in the form of working, tested software and systemscorrect
Answer: B,E
Explanation:
Explanation
The purpose of value stream mapping is to visualize how value flows from concept to cash and to deliver incremental value in the form of working, tested software and systems. Value stream mapping helps to identify the current state of the value stream, the steps, activities, roles, and tools involved, and the delays, waste, and inefficiencies that can be eliminated or improved. It also helps to create a future state vision and an action plan for continuous improvement
NEW QUESTION # 33
What is the purpose of the blue/green deployment pattern?
- A. To ensure no changes happen in production without going through the Continuous Delivery Pipeline
- B. To deploy to only some data centers to reduce the deployment risk
- C. To deploy between an inactive and active environment
- D. To decouple deployment from release - xx
Answer: C
Explanation:
Explanation
The purpose of the blue/green deployment pattern is to deploy between an inactive and active environment.
The blue/green deployment pattern is a change management strategy for software releases that reduces the downtime and risk of deploying new versions of software. The blue/green deployment pattern involves having two identical but separate environments: one is the active environment (blue) that serves the user traffic, and the other is the inactive environment (green) that hosts the new version of the software. The deployment process consists of switching the user traffic from the blue environment to the green environment, after verifying that the new version is working properly. The blue environment can then be kept as a backup or updated to become the next green environment. The blue/green deployment pattern has several benefits, such as:
It allows for fast and reliable rollback, in case of any issues or errors in the new version, by simply switching back to the blue environment.
It eliminates the need for complex and error-prone migration scripts, as the green environment can be prepared and tested in advance, without affecting the blue environment.
It enables testing and experimentation of the new version with a subset of users, by directing some user traffic to the green environment, before switching completely.
It facilitates continuous delivery and deployment, by automating the switching process and reducing the transaction cost and risk of moving changes to production
NEW QUESTION # 34
What work is performed in the Build activity of the Continuous Delivery Pipeline?
- A. Code
- B. Code review
- C. Automated acceptance testing
- D. Compile
Answer: D
Explanation:
Explanation
The correct answer is B. Compile. The Build activity of the Continuous Delivery Pipeline is responsible for creating deployable binaries and merging development branches into the trunk. The Build activity includes the following practices:
Compile - Compile is the process of transforming the source code into executable code that can run on a specific platform or environment. Compile involves checking the syntax, semantics, and dependencies of the code, and resolving any errors or conflicts. Compile also involves linking the code with other libraries or components that are required for the functionality of the solution.
Package - Package is the process of bundling the compiled code and other resources into a format that can be easily deployed to the target environment. Package involves creating archives, containers, or installers that contain the necessary files and metadata for the deployment process. Package also involves applying versioning and configuration information to the packages, to ensure traceability and consistency.
Verify - Verify is the process of ensuring that the code and packages meet the quality standards and security checks, and that they are ready for deployment and release. Verify involves applying automated tools and processes, such as static code analysis, code coverage, code review, and code quality metrics, to detect and resolve any issues or vulnerabilities in the code and packages. Verify also involves ensuring compliance with the coding standards and guidelines, and documenting the results and feedback of the verification process12
NEW QUESTION # 35
What is the primary purpose of creating an automated test suite?
Choose the correct option from below list
- A. To enable continuous testing
- B. To increase the return on investment for finding defects
- C. To eliminate all manual testing
- D. To increase unit test coverage during an Iteration
Answer: A
Explanation:
Explanation
The primary purpose of creating an automated test suite is to enable continuous testing in SAFe DevOps.
Continuous testing is the process of executing automated tests as part of the software delivery pipeline to obtain immediate feedback on the business risks associated with a software release candidate. Continuous testing supports the other aspects of the Continuous Delivery Pipeline (CDP) by providing fast and frequent feedback on the quality and compliance of the solution. Continuous testing also reduces the cost and effort of manual testing and increases the confidence and reliability of the solution. Continuous testing requires a test automation strategy that covers all types of tests, such as unit, integration, functional, performance, security, and user acceptance tests
NEW QUESTION # 36
What triggers the Release activity?
- A. Successful deployment to production
- B. Business decision to go live
- C. Successful user acceptance tests
- D. Change validated in staging environment
Answer: B
Explanation:
Explanation
According to the SAFe DevOps Practitioner 6.0 study guide and handbook, the Release activity is triggered by a business decision to go live. This means that the Solution is ready to be delivered to end users and customers, based on the validation and testing done in the previous activities. The handbook states that "The Release activity is triggered by a business decision to go live."1 Therefore, this activity involves releasing value to customers on demand, while also measuring and learning from the feedback.
NEW QUESTION # 37
What should the team be able to do after current-state mapping?
- A. Describe the biggest bottlenecks in the delivery pipeline
- B. Define a plan to reduce the lead time and increase Active Time
- C. Define Enabler Features that will improve the Value Stream
- D. Identify those responsible for the biggest bottlenecks in the process
Answer: A
Explanation:
Explanation
After conducting current-state mapping in the context of Value Stream Mapping, a team should be able to identify and describe the biggest bottlenecks in the delivery pipeline. Current-state mapping is a process of visualizing the entire flow of a product or service from start to finish, highlighting each step and identifying where delays or inefficiencies occur. By understanding where these bottlenecks are, teams can then work on strategies to improve the overall flow, reduce lead times, and enhance efficiency. This step is crucial for identifying areas for improvement and setting the stage for future actions to optimize the Value Stream.
NEW QUESTION # 38
Which technical practice incorporates build-time identification of security vulnerabilities in the code?
- A. Penetration testing
- B. Application security
- C. Threat modeling
- D. Dynamic code analysis
Answer: D
Explanation:
Explanation
According to the SAFe DevOps Practitioner 6.0 study guide and handbook, dynamic code analysis is a technical practice that incorporates build-time identification of security vulnerabilities in the code. This means that the code is scanned for potential security risks during the compilation or execution phase, rather than during the testing phase. The handbook states that "Dynamic code analysis is a technique that identifies security vulnerabilities in the code during compilation or execution."1 Therefore, dynamic code analysis helps teams detect and fix security issues early in the development process.
NEW QUESTION # 39
Which two security skills are part of the Continuous Integration aspect? (Choose two.)
- A. Network security practices
- B. Security board review
- C. Application security
- D. SOX compliance analysis
- E. Penetration testing
Answer: C,E
Explanation:
Explanation
Two security skills that are part of the Continuous Integration aspect are application security and penetration testing. Application security is the practice of protecting the software applications from malicious attacks, unauthorized access, data breaches, and other threats. It involves applying security principles and techniques throughout the software development lifecycle, such as secure coding, code analysis, code review, security testing, and security monitoring. Application security helps to ensure that the software meets the security requirements and standards, and that it does not introduce any vulnerabilities or risks to the system or the users910 Penetration testing is the practice of simulating real-world attacks on the software applications to identify and exploit any security weaknesses or flaws. It involves using various tools and methods to probe, scan, attack, and bypass the security defenses of the software, such as firewalls, encryption, authentication, and authorization. Penetration testing helps to evaluate the security posture and resilience of the software, and to provide recommendations for improvement or remediation. Penetration testing is usually performed by external or independent experts, who have the permission and authorization to conduct the tests
NEW QUESTION # 40
What is the first area that should be identified in Value Stream Mapping?
- A. Active Time, Flow Time. and Percent Complete and Accurate (%C&A)
- B. The people who supervise the work
- C. The steps
- D. The bottlenecks
Answer: C
NEW QUESTION # 41
What is the primary goal of the Stabilize activity?
Choose the correct option from below list
- A. To enhance stability with blue/green deployment
- B. To achieve active-active site replication
- C. To avoid unplanned outages and security breaches
- D. To establish quality-of-service agreements with customers
Answer: C
Explanation:
Explanation
The primary goal of the Stabilize activity is to avoid unplanned outages and security breaches. The Stabilize activity is part of the Release on Demand aspect of the CDP in SAFe DevOps, which ensures the solution is working well from a functional and nonfunctional requirements (NFR) perspective. The Stabilize activity involves practices such as monitoring, logging, alerting, incident response, and disaster recovery. These practices help to detect and resolve issues quickly, minimize the impact of failures, and restore normal operations as soon as possible
NEW QUESTION # 42
Which two technical practices focus on Built-in Quality? (Choose two.)
Choose the correct option from below list
- A. Environment configuration
- B. Pair work
- C. Feature toggles
- D. Canary releases
- E. Test-driven development
Answer: B,E
Explanation:
Explanation
Two of the technical practices that focus on Built-in Quality are pair work and test-driven development. Pair work is a collaborative technique where two developers work together on the same code, one writing the code and the other reviewing it. Pair work improves the quality of the code by reducing defects, increasing knowledge sharing, and enhancing creativity and problem-solving. Test-driven development (TDD) is a practice where developers write automated tests before writing the code, and then refactor the code until it passes the tests. TDD ensures that the code meets the requirements and specifications, as well as improves the design, readability, and maintainability of the code
NEW QUESTION # 43
A canary release involves making a Solution available to whom?
- A. Users conducting User Acceptance Testing
- B. Any subset of users
- C. External users only
- D. Internal users only
Answer: B
Explanation:
Explanation
According to the SAFe DevOps Practitioner 6.0 study guide1, a canary release is a type of release on demand that involves making a Solution available to any subset of users, such as a specific team, product, or region. A canary release allows the DevOps teams to test the Solution in a controlled environment and monitor its performance and feedback before rolling it out to the entire customer base. A canary release can help reduce the risk of introducing errors or failures into production and improve the quality and reliability of the Solution.
NEW QUESTION # 44
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