Exam

Question 1

Describe the meaning of “Make the build self testing” as it relates to continuous integration

Answer 1

• Need a suite of automated tests which check a large part of the code base
• Failure of a test should cause the build to fail

Question 2

Agile 10 Principles are:

First 5

Answer 2

1. Active user involvement
2. Team is empowered to make decisions
3. Requirements evolve, timeline is fixed
4. Requirements = high level, lightweight, visual
5. small incremental releases, then iterate

Question 3

Agile practices are:

Answer 3

Daily Meeting
Iterative & incremental (timeboxing, requirements freeze)
Planning Game / Planning Poker
CI, TDD, BDD,
Sprint Review 
Reflections, Retrospectives etc

Question 4

Kanban vs Scrum - 10 marks
Same/Different
Consequences of the differences

Answer 4

Kanban is about limiting work in progress to reduce cycle time, to find and eliminate bottlenecks, while providing the ability to expedite a feature. Scrum focusses on providing value in a set time frame, may not deal with bottle necks, can’t be changed in a sprint and has direct user involvement before & after each sprint

Question 5

CI Tools - name & describe (2 marks)

Answer 5

Travis CI:

watches a branch and notices when there’s been an integration, then runs all the tests again.

Question 6

Agile 10 Principles are:

Back 5

Answer 6

6. Frequent delivery of products
7. Complete each feature before moving on
8. Apply 80/20 rule
9. Test early and often (tests integrated throughout SDLR)
10. collaborative & cooperative approach

Question 7

Explain the Agile Principle: “Apply the 80/20 Rule”

Answer 7

Focus on the important 20% of effort which will generate 80% of the results

Question 8

The kanban dream is to avoid: (x4)

Answer 8

• Building features no one needs right now
• Writing more specs than can be coded
• Writing more code than can be tested
• Testing more code than can be deployed

Question 9

Kanban limits Rule of thumb:

How many cards on the board?

Answer 9

Add up all the team members (incl. test, BA, i/face)

DIVIDE by 2

Question 10

Kanban limits Rule of thumb:

Divide by?

Answer 10

In the To Do column, divide total WINP/2

In any other column divide how many can work on it/2

Question 11

Kanban summary (x3)

Answer 11

Measure Cycle Time,
Limit WINP
Make workflow visible

Question 12

Scrum Summary

Answer 12

• Split work (user stories)
• Split time (short iterations)
• Optimise Release plan (priorities)
• Optimise Process (retrospective)

Question 13

Differences between Kanban & Scrum (x6)

Answer 13

KB = no timebox = continuous flow
KB = MMF/user cards = larger than user story
KB = work is pulled = no effort estimates
KB = Performance measured in CT = not V
BOTH = prioritise cards (MoSCoW)
SCRUM = board is reset = not persistent

Question 14

4 things offered by cloud & services computing

Answer 14

• rapid development
• large scale, distributed applications
• resource outsourcing
• IT management with service providers

Question 15

Advantages of IaaS, PaaS, SaaS (x3)

Answer 15

• no h/w or maint costs
• S/W always updated & patches applied
• only pay for what you use

Question 16

Types of cloud/service computing (x3)

Answer 16

Private
Public
Hybrid

Question 17

Cloud/XaaS concerns (x5)

Answer 17

• security
• compliance
• transparency
• trust
• performance
• legal (international requirements)

Question 18

4 risk responses

Answer 18

Accept
Mitigate
Transfer
Avoid