C1000-007 Online Practice Questions and Verified Answers

Question 1 Single choice

Which statement describes the immutability of data on blockchain?

A
Data can only be modified by an administrator
B
It is not possible to modify business data through transactions
C
No participant can tamper with a transaction after it has been recorded to the ledger.
D
All data is encrypted using a one-way hashing algorithm. Therefore, changing stored data is impossible.

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Correct answer: B

Question 2 Single choice

Which statement describes how a Delivery Pipeline continuously builds and deploys an application?

A
Builds run at regularly scheduled intervals and the pipeline automatically deploys the output
B
It depends on which lifecycle phase in the toolchain contains the Delivery pipeline integration
C
A DevOps engineer approves the transition actions from one pipeline phase to the next.
D
A sequence of stages retrieve input and run jobs, such as builds, tests, and deployments

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Correct answer: B

Question 3 Single choice

Which statement is true regarding microservices?

A
They are scaled as a group when greater performance is needed
B
They are an architecture style based on loosely coupled applications
C
They are able to overlap responsibilities to provide better availability
D
They are designed with a focus on combining unrelated tasks in one process

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Correct answer: B

Question 4 Single choice

What is a benefit of using the IBM Cloud App ID?

A
Adds authentication to mobile and web applications
B
Fixes broken userlDs that are used to access mobile applications
C
Generates passwords for userlDs that are used to authenticate mobile and web applications
D
Provides a password vault to store userlDs and passwords that are used to access mobile and web applications

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Correct answer: A

Question 5 Single choice

Which is an application design pattern for avoiding cascading service failure?

A
Nanoservice
B
Circuit Breaker
C
Service Discovery
D
Service Authorization

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Correct answer: B

Question 6 Single choice

Which statement defines horizontal scaling in IBM Cloud?

A
It requires application downtime.
B
It is referred to as scaling in/out of an application.
C
It is referred to as scaling up/down of an application.
D
It can be done by increasing/decreasing the memory or number of CPU cores of an application.

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Correct answer: C

Question 7 Single choice

What is used to allow granular access control at the bucket level in IBM Cloud Object Storage within an application in IBM Cloud?

A
App ID
B
Federated SSO
C
Platform API Keys
D
Identity and Access Management

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Correct answer: C

Question 8 Single choice

Which Docker component specifies interfaces that programs can use to talk to the daemon and instruct it what to do?

A
Images
B
Engine
C
Registry
D
Services

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Correct answer: A

Question 9 Multiple choice

Which two methods are considered safe under HTTP specification for RESTful APIs?

A
GET
B
PUT
C
HEAD
D
POST
E
PATCH

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Correct answers: A, C

Question 10 Single choice

In an Auto-Scaling policy definition, which field defines the interval of time to ignore other scaling requests after a scale out has occurred?

A
Breach duration
B
Statistics Window
C
Cooldown period for scaling in
D
Cooldown period for scaling out

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Correct answer: D