QUESTION: 5

Which statements are true regarding using Scrum for large-scale product delivery?

(choose the best two answers)

Splitting a team member's time between multiple Scrum Teams is often less productive than focusing that team member on a single team's Sprint Backlog.
Scrum requires all team members work full time on a single team.
Changes to the core Scrum framework are needed to be successful with Scrum at large-scale.
A well-structured and refined Product Backlog can minimize and often eliminate dependencies between multiple Scrum Teams working together on a product during a Sprint.

Answer(s): A,D

Explanation:

The true statements regarding using Scrum for large-scale product delivery are:
A) Splitting a team member's time between multiple Scrum Teams is often less productive than focusing that team member on a single team's Sprint Backlog. This statement is true because splitting a team member's time between multiple teams can cause context switching, communication overhead, coordination challenges, and reduced commitment and accountability. It can also reduce the team's ability to self-organize and deliver a potentially releasable product increment at the end of each Sprint. Therefore, it is recommended that team members focus on one team's Sprint Backlog and work as a cross-functional and cohesive unit 1122. D) A well-structured and refined Product Backlog can minimize and often eliminate dependencies between multiple Scrum Teams working together on a product during a Sprint. This statement is true because a well-structured and refined Product Backlog can help the Product Owner and the Scrum Teams to identify and prioritize the most valuable and feasible work items, and to decompose them into smaller and independent pieces that can be delivered by one or more teams. This can reduce the complexity and risk of integration and dependency management, and increase the flow and quality of value delivery 3344.
The other statements are false for the following reasons:
B) Scrum requires all team members work full time on a single team. This statement is false because Scrum does not prescribe how team members allocate their time or effort. Scrum only defines the roles, events, artifacts, and rules that guide the empirical process of product development. However, as mentioned above, it is often more productive and effective for team members to focus on one team's Sprint Backlog and avoid splitting their time between multiple teams [5].

C) Changes to the core Scrum framework are needed to be successful with Scrum at large-scale. This statement is false because Scrum is a lightweight and adaptable framework that can be applied to any complex product development context, regardless of the size or scale. Scrum does not need to be changed or modified to be successful at large-scale, but rather scaled up or down according to the needs and goals of the product organization. There are various frameworks and approaches that can help scale Scrum, such as Nexus, LeSS, SAFe, and Scrum@Scale, but they all adhere to the core principles and values of Scrum [6] [7].

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QUESTION: 6

A Nexus Daily Scrum:
(choose the best two answers)

Provides a single meeting where all Scrum Teams can update the Sprint Backlog.
Is the same as a Scrum-of-Scrums.
Provides input into each Scrum Team's individual Daily Scrums to help them better plan their days work.
Is only for the Nexus Integration Team to plan their work for the next 24-hours.
Is an opportunity to make integration issues transparent.

Answer(s): C,E

Explanation:

The best answers for this question are:
C) Provides input into each Scrum Team's individual Daily Scrums to help them better plan their days work. This answer is correct because the Nexus Daily Scrum is an event that helps the Scrum Teams in a Nexus to coordinate their work and identify any integration issues or dependencies that may affect their progress toward the Nexus Sprint Goal. The appropriate representatives from each Scrum Team attend the Nexus Daily Scrum and share relevant information and feedback that can help their teams plan their work for the next 24 hours 112233.
E) Is an opportunity to make integration issues transparent. This answer is also correct because the Nexus Daily Scrum is an event that enables the Scrum Teams in a Nexus to inspect the current state of the Integrated Increment and to make any integration issues or newly discovered cross-team dependencies transparent. The Nexus Daily Scrum also provides a forum for the Scrum Teams to collaborate and resolve any integration challenges or impediments that may arise during the Sprint 112244.
The other answers are not correct for the following reasons:
A) Provides a single meeting where all Scrum Teams can update the Sprint Backlog. This answer is not accurate because the Nexus Daily Scrum is not a meeting where all Scrum Teams update the Sprint Backlog, but rather an event where appropriate representatives from each Scrum Team inspect the Integrated Increment and identify integration issues or dependencies. The Sprint Backlog is updated by each Scrum Team during their own Daily Scrum, which is a separate event from the Nexus Daily Scrum 1155.
B) Is the same as a Scrum-of-Scrums. This answer is not true because the Nexus Daily Scrum is not the same as a Scrum-of-Scrums, which is a common practice for coordinating multiple Scrum Teams that is not part of the Scrum framework. The Nexus Daily Scrum is a specific event defined by the Nexus framework, which is a minimal extension of Scrum that enables multiple Scrum Teams to work together on a single product. The Nexus Daily Scrum has a clear purpose, structure, and outcome that differs from a Scrum-of-Scrums 112233.
D) Is only for the Nexus Integration Team to plan their work for the next 24-hours. This answer is not correct because the Nexus Daily Scrum is not only for the Nexus Integration Team, but also for the appropriate representatives from each Scrum Team in the Nexus. The Nexus Integration Team is a special Scrum Team that facilitates the integration and delivery of the work done by the other Scrum Teams, but it does not plan the work for them. The Nexus Daily Scrum is an event that helps all the Scrum Teams in the Nexus to coordinate their work and identify any integration issues or dependencies 1155.

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QUESTION: 7

Four teams in a Nexus typically integrate their work only once, late in the Sprint. The teams report that it takes many hours or days to integrate their work, which delays the Sprint's end. To address this issue, which of the following would help? (choose the best answer)

Integrating more frequently.
Doing more acceptance testing.
Doing more exploratory testing.
Using Behavior-Driven Development.
Investing in more Requirements Traceability.
All of the above.

Answer(s): A

Explanation:

The best answer for this question is A. Integrating more frequently. This answer is correct because integrating more frequently can help the Scrum Teams in a Nexus to detect and resolve integration issues or dependencies earlier and faster, and to deliver a potentially releasable product increment at the end of each Sprint. Integrating more frequently can also reduce the complexity and risk of integration, and increase the quality and feedback of value delivery 112233. The other answers are not correct for the following reasons:
B) Doing more acceptance testing. This answer is not sufficient because doing more acceptance testing does not address the root cause of the problem, which is the late integration of the work. Acceptance testing can help to verify the quality and functionality of the product increment, but it does not ensure that the integration is done early and often. Moreover, doing more acceptance testing may consume more time and resources, and delay the delivery of the product increment 44. C) Doing more exploratory testing. This answer is not helpful because doing more exploratory testing does not solve the issue of the late integration of the work. Exploratory testing can help to discover and learn more about the product increment, but it does not guarantee that the integration is done smoothly and quickly. Furthermore, doing more exploratory testing may introduce more uncertainty and variability, and hinder the delivery of the product increment 55. D) Using Behavior-Driven Development. This answer is not relevant because using Behavior-Driven Development does not directly affect the integration of the work. Behavior-Driven Development is a technique that can help to define and communicate the expected behavior and outcomes of the product increment, but it does not ensure that the integration is done frequently and effectively. Additionally, using Behavior-Driven Development may require more collaboration and coordination, and complicate the delivery of the product increment [6]. E) Investing in more Requirements Traceability. This answer is not useful because investing in more Requirements Traceability does not improve the integration of the work. Requirements Traceability is a practice that can help to track and document the origin and evolution of the product requirements, but it does not ensure that the integration is done timely and efficiently. Also, investing in more Requirements Traceability may increase the overhead and bureaucracy, and slow down the delivery of the product increment [7].
F) All of the above. This answer is not correct because none of the above answers are effective for addressing the issue of the late integration of the work. As explained above, each of the above answers has its own limitations and drawbacks, and does not directly or sufficiently help the Scrum Teams in a Nexus to integrate their work more frequently and successfully. Therefore, the best answer is A. Integrating more frequently.

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QUESTION: 8

During Cross-Team Refinement, the ordered Product Backlog (1 through 9) is mapped out so the Nexus can visualize dependencies. For example, PBI 5 for Team Orange is dependent on Team Red completing PBI 1.

All else being equal, which PBI is most concerning?

(choose the best answer)

PBI 2, because it has the most dependencies.
PBI 1, because it is on the top of the Product Backlog.
PBI 1, because it is the first piece of work with a dependency.
PBI 2, because there is a dependency with a different team on work that occurs within the same Sprint.

Answer(s): D

Explanation:

PBI 2 is the most concerning because it involves a cross-team dependency within the same Sprint, which can create challenges and risks for the integration and delivery of the product increment. According to the Online Nexus Guide1, dependencies should be minimized or eliminated as much as possible, and if they exist, they should be made transparent and resolved as early as possible. Cross- team dependencies within the same Sprint can cause delays, conflicts, rework, and waste, and reduce the quality and value of the product increment 234. The other answers are not correct for the following reasons:

A) PBI 2, because it has the most dependencies. This answer is not accurate because PBI 2 does not have the most dependencies, but only one dependency with PBI 1 from Team Red. PBI 3 has the most dependencies, as it depends on PBI 1, PBI 2, and PBI 4. However, PBI 3 is not as concerning as PBI 2, because its dependencies are not within the same Sprint, but across different Sprints. This means that PBI 3 can be refined and planned in advance, and the teams can coordinate and communicate their work more effectively 5.
B) PBI 1, because it is on the top of the Product Backlog. This answer is not relevant because the position of PBI 1 on the Product Backlog does not indicate its level of concern, but its priority and value. The Product Backlog is ordered by the Product Owner based on various factors, such as business value, risk, complexity, and dependencies. PBI 1 may be on the top of the Product Backlog because it is the most valuable or urgent item, or because it is a prerequisite for other items, but it is not necessarily the most concerning item 6.
C) PBI 1, because it is the first piece of work with a dependency. This answer is not true because PBI 1 is not the first piece of work with a dependency, but the first piece of work that other items depend on. PBI 1 does not have any dependencies itself, but it creates dependencies for PBI 2, PBI 3, and PBI
5. Therefore, PBI 1 is not as concerning as PBI 2, because it does not depend on any other item, and it can be completed independently by Team Red 5.

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