1
Which phase follows 'Code' in the DevOps lifecycle?
Correct Answer
Build
☑ MCQ PRACTICE
DevOps Unit 2
Practice objective questions for quick revision and examination preparation. Try answering each question before revealing the answer.
DevOps - Unit-2
2
Continuous testing means
Correct Answer
running automated tests throughout the delivery pipeline for rapid feedback
3
A monolithic architecture is one in which
Correct Answer
the whole application is built and deployed as a single unit
4
Microservices are
Correct Answer
small, independently deployable services
5
A major drawback of a monolith for DevOps is that
Correct Answer
small changes require redeploying the whole application
6
Separation of concerns means
Correct Answer
dividing a system into parts, each with a distinct responsibility
7
Database migrations are
Correct Answer
scripted, versioned changes to the database schema
8
Which of the following is a tool for managing database migrations?
Correct Answer
Flyway
9
In a microservices architecture, the recommended approach to data is that
Correct Answer
each service owns its own data
10
Conway's Law states that
Correct Answer
organisations design systems that mirror their communication structure
11
Resilience of a system is its ability to
Correct Answer
recover from failures and keep working
12
Chaos Monkey is a resilience testing tool created by
Correct Answer
Netflix
13
Which design guideline is generally recommended for components?
Correct Answer
Loose coupling and high cohesion
14
Continuous testing helps DevOps teams mainly by
Correct Answer
finding defects early
15
The typical layers of a layered architecture are
Correct Answer
presentation, business logic and data access
16
'Shift-left' testing means
Correct Answer
testing earlier in the development lifecycle
17
An API gateway in a microservices system acts as
Correct Answer
a single entry point that routes requests to services
18
The circuit breaker pattern
Correct Answer
stops calls to a failing service to prevent cascading failures
19
Business agility in DevOps refers to
Correct Answer
the ability to respond quickly to market and customer changes
20
Backward-compatible database migrations are important because
Correct Answer
old and new application versions may run against the same schema during a rollout
21
Which architecture style best supports scaling components independently?
Correct Answer
Microservices
22
In the test pyramid, the largest number of tests should be
Correct Answer
unit tests
23
Running several instances of a service to avoid a single point of failure is an example of
Correct Answer
redundancy
24
A message queue is commonly used in architecture to
Correct Answer
provide asynchronous communication and decouple components
25
Smaller, more frequent releases mainly reduce
Correct Answer
the risk of each release
Fill in the Blanks
26
A __________ architecture packages all functionality into a single deployable unit.
Correct Answer
monolithic
27
Microservices commonly communicate using lightweight protocols such as HTTP/__________.
Correct Answer
REST
28
__________ of concerns is the principle of dividing a program into parts with distinct responsibilities.
Correct Answer
Separation
29
Scripted, versioned changes to a database schema are called database __________.
Correct Answer
migrations
30
In a microservices architecture each service owns its own __________ tier.
Correct Answer
data
31
Netflix's __________ Monkey randomly terminates instances to test resilience.
Correct Answer
Chaos
32
__________ testing is the automated testing carried out throughout the delivery pipeline.
Correct Answer
Continuous
33
Testing earlier in the lifecycle is known as __________-left testing.
Correct Answer
shift
34
The __________ breaker pattern stops calls to a failing service.
Correct Answer
circuit
35
'Organisations design systems that mirror their communication structure' is known as __________'s Law.
Correct Answer
Conway
36
The ability of a system to recover from failures is called __________.
Correct Answer
resilience
37
An API __________ is a single entry point to a set of microservices.
Correct Answer
gateway
38
The test __________ shows many unit tests, fewer integration tests and very few UI tests.
Correct Answer
pyramid
39
Flyway and __________ are tools used for database migrations.
Correct Answer
Liquibase
40
Components should have low coupling and high __________.
Correct Answer
cohesion