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DASA DevOps Fundamentals course > Exam training > Flashcards

Exam training Flashcards

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1
Q

What means the wall of confusion between Dev and Ops?

A

The wall of confusion is a psychological and procedural barrier that obstructs the flow of communication
between the Development and the Operations teams

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2
Q

Name 11 primary problems underlying the wall of confusion.

A 
Organizational Silos
Different Mindsets
Different Implementations
Different Tools:
Lack of Interest in Learning Other Tools
Different Environments:
Loss of Work
Blame Game
Build Rollback
Disintegrated Processes
No Feedback Loop
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3
Q

What are the 3 elements of creating an antifragile organisation?

A

Management innovation
Lean Startup
Devops

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4
Q

How differs the High-performing IT Organization from other organizations? 5x

A 
3 highs:
- More frequent deployments
- Faster recovery from failures
- Better netto promotor scores
2 lows:
- Lower change failure rates
- Shorter lead times
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5
Q

Seven reasons for DevOps

A
  • Improved speed to market
  • Continuous Integration and delivery
  • Higher quality, fewer failures, and higher stability
  • Innovation and creativity
  • Increased employee engagement and job satisfaction
  • Breaking down silos and eliminating waste; It is all about collaboration!
  • Resource and cost reduction
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6
Q

DASA devops definition

A

DevOps is a CULTURAL and OPERATIONAL model that

fosters COLLABORATION to ENABLE high-performance IT to ACHIEVE business goals

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7
Q

What are the 2 core methodologies underlying DevOps?

A

Agile methodologies and Lean IT

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8
Q

Name 3 differences between Activity focused and product-focused development.

A

‘Activity-Focused’ (siloed) Traditional vs ‘Product-Focused’ (team): Agile

Specialty Oriented Work Oriented
Functionally Organized Team Organized
Project Focused Product Focused
Work with Individuals Work with Teams

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9
Q

What is the difference between plan-driven and value-driven regarding devils triangle?

A

Plan-driven: functionality is fixed

value-driven: resources and time is fixed

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10
Q

Lean focuses on creating the value for customer. name the 4 elements of Lean to create this value.

A

Pull, perfection, flow, value stream

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11
Q

What is flow in Lean context?

A

Create a continuous flow in production with the Just-in-Time approach and reduce peak and low volumes

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12
Q

Name 6 DevOps core principles

A

CCECCA

  • Customer-centric action
  • Create with the end in mind
  • End-to-end responsibility
  • Cross-functional autonomous teams
  • Continuous improvement
  • Automate everything you can
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13
Q

How to meet customer requirements? 4x

A

● Innovate continuously.
● Adjust when a certain strategy is not working.
● Constantly invest in products and services that receive a maximum level of customer delight.
● Rapidly respond to changing or emerging customer needs.

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14
Q

Name the 7 keyroles of devops

A 
Scrum Master/Team Manager
Business representative/Product Owner
Technical architect
Developer
Tester
Operations Engineer
User Experience
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15
Q

name 4 Dasa Skill Areas

A 
CoCoLeTe:
Courage
Teambuilding
DevOps Leadership
Continuous Improvement
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16
Q

name 8 Dasa Knowledge Areas

A 
Business Value Optimization
Business analysis
Architecture and design
Programming
Continuous Delivery
Test specification
Infrastructure Engineering
Security, Risk and compliance
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17
Q

Name 5 DASA maturity levels

A 
Fundamentals
Practitioner
Specialization: enable and scale
Specialization: Specify and verify
Specialization: Create and deliver
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18
Q

What are underlying problems regarding the wall of confusion?

A

Dissolving the wall of confusion requires tackling a variety of underlying problems, such as
organizational silos, different mindsets, blame game, build rollback, disintegrated processes,
and no feedback loops.

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19
Q

What is antifragility?

A

Antifragility is the ability of systems (or organizations) to get better as a result of shock,
disruptions or disorder.

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20
Q

What is culture?

A

Culture is the sum total of behavior and mindset of an organization, supported and enhanced
by the values and beliefs of that organization.

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21
Q

What is the core of DevOps culture

A

The core of the DevOps culture is the emphasis on service.

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22
Q

Two elements of service mindset

A

A perfect service mindset ensures that a high quality product is not only available but also
meets the needs of the customer.

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23
Q

What are the 6 typical cultural aspects of a DevOps team

A 
The typical cultural aspects of a DevOps team are Continuous Learning, 
Experimentation, 
Build Quality in, 
An Engineering Culture, 
A Culture of Effectiveness, and 
A Culture of Product Thinking.
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24
Q

Some of the cultural elements that can help you develop an effective and successful DevOps
culture

A

Some of the cultural elements that can help you develop an effective and successful DevOps
culture are
Teambuilding and Collaboration,
Continuous Improvement and Problem-Solving,
Courage and Experimentation, and
Leadership and Feedback.

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25
Definition of a team
A team is a small number of people with complementary skills who are committed to a common purpose, set of performance goals, and approach for which they hold themselves mutually responsible
26
The three key aspects that can motivate anyone
The three key aspects that can motivate anyone are Autonomy, Mastery, and Purpose.
27
The Kaizen mindset means integrating the three behaviors
``` The Kaizen mindset means integrating the three behaviors: - Seeing and prioritizing problems, - solving the problems, and - sharing lessons learned, into the DevOps team. ```
28
The four actions that a DevOps team can take to ensure their actions are accepted
The four actions that a DevOps team can take to ensure their actions are accepted are - ensure customer buy-in, - define and deliver an MVP, - focus on the goal, and - take small steps
29
Leadership is about
Leadership is about - taking decisions, - acting in accordance with the goals of the team, - and being accountable for the actions taken by the team.
30
Central command vs Mission command
Central command is to lead a team through detailed instructions. Mission command means leading a team through vision and empowerment.
31
An effective leadership helps DevOps teams to overcome the five barriers:
``` An effective leadership helps DevOps teams to overcome the five barriers: TRACC - lack of TRUST, - fear of CONFLICT, - avoidance of ACCOUNTABILITY, - lack of COMMITMENT, - inattention to RESULTS. ```
32
Keytool for leaders?
Feedback is the key tool that leaders should use and stimulate.
33
What means changing a culture?
Changing the culture is a collective movement in which behavior, attitude, and mindset are adjusted through feedback.
34
Describe Conways law.
Organizations which design systems are constrained to produce designs which are copies of the communication structures of these organizations.
35
What is the current preferred organization model for DevOps?
The current preferred way of organizing DevOps teams is to enable autonomous Business System teams that can “land” their application and infrastructure code on a platform that is maintained by a Platform team.
36
How are activity-focused organizations organized?
Activity-focused organization are specialty Oriented, Functionally Organized, Project Focused, Work with Individuals, and Optimized for Resource Utilization.
37
How are productr-focused organizations organized?
Product-focused organization Work Oriented, Team Organized, Product Focused, Work with Teams, and Optimized for Speed.
38
How to set up teams?
Set up teams structured around distinct services and products
39
What are the three basic design criteria to determine the autonomy of a team?
The three basic design criteria to determine the autonomy of a team are customer, technology stack, and knowledge.
40
What is the decoupling point?
The decoupling point defines the point within the technology stack where the responsibility is transferred between the Business System team and the Platform team.
41
What is the aim of IT architecture?
The aim of IT architecture is to support functional requirements with non-functional or quality requirements. Building (other) qualities in simultaneously with the functional requirements is a major enabler of faster and better IT services.
42
What is the relation between complexity, number of services and quality?
Complexity increases with the number of services, and quality falls as complexity increases
43
What are the guidelines for microservice architecture (MSA)?
Guidelines for MSA include - autonomous systems, - simplicity, and - low coupling/high cohesion.
44
Characteristics of MSA include...9x
Characteristics of MSA include - Componentization via Services, - Organized Around Business Capabilities, - Products not Projects, - Smart Endpoints and Dumb Pipes - Decentralized Governance - Decentralized Data Management - Infrastructure Automation - Design for Failure Tolerate, and - Evolutionary Design.
45
Why governance?
Governance ensures that the Business receives the right Innovation and Service Delivery as agreed (on time, at agreed quality and at the right price).
46
What is an important technique to scaling Scrum and meet governance?
The Scrum of Scrums meeting is an important technique in scaling Scrum to a large project with multiple Business System teams.
47
What is the preferred interaction between Business System teams and Platform teams?
selfservice by Business Service teams.
48
What are the components of the Spotify model?
``` Squad = team Tribe = organizing multiple related squads Chapter = cross-squad team in tribe Guild = cross tribe team ```
49
What is the goal of a chapter?
maintaining and developing standards
50
What is the goal of a guild?
community of interest (development, test, UX...)
51
What means DMAIC
``` Define Measure Analyze Improve Control ```
52
Implementing DevOps across multiple teams brings a new set of (governance) challenges. Name 6x
``` Implementing DevOps across multiple teams brings a new set of challenges, such as: ● Project dependencies ● Multiple locations ● Centralized resource planning ● Integration of technologies ● Multiple stakeholders ● Operational support ```
53
What are key characteristics of Agile?
Agile is a time-boxed and iterative approach towards software delivery
54
What are key characteristics of Scrum?
Scrum emphasizes - empirical feedback, - team self management, and - performs product increments within short iterations.
55
Name the Agile Manifesto
When working Agile, the team chooses: ○ Individuals and interactions over processes and tools. ○ Working software over comprehensive documentation. ○ Customer collaboration over contract negotiation. ○ Responding to change over following a plan.
56
The eight types of waste
The eight types of waste can be recalled by thinking TIMWOODS: Transportation, Inventory, Motion, Wait, Overprocessing, Overproduction, Defects, and Non-Utilized Skills.
57
Why Value Stream Mapping
VSM is about identifying (and removing) wastes in a process.
58
Why Minimal Value Product-tool?
MVP is a great tool for verifying hypothesis
59
Why Story Mapping?
Story Mapping helps build your MVP in an iterative manner where one can use Agile methodologies to engineer the solution.
60
ITIL is published as a series of five books that cover the following five ITSM lifecycle stages:...
``` Service Strategy Service Design Service Transition Service Operation Continual Service Improvement ```
61
Lean is an organized way that considers the following aspects to deliver maximum customer value:
● Eliminate waste (also known as Muda) ● Eliminate overburden/too high workload (also known as Muri) ● Eliminate lack of balance in workloads/lack of predictable flow (also known as Mura)
62
What are the steps of VSM?
``` Customer Objectives and Process Actors Define Activities Define Work in Progress Identify Rework Assess Activities Determine Proccess Cycle Efficiency Determine Value Add for Each Activity ```
63
What are 4 types of feedback?
Feedback on Build and Tests Feedback on Deployability Feedback on Runtime Behavior Feedback from the Customer

DASA DevOps Fundamentals course (1 decks)

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