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Resilience And Fault Injection practice questions

Practise Istio Certified Associate (ICA, CNCF/Linux Foundation) (ICA) Resilience And Fault Injection practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.

Courseiva uses original exam-style practice questions designed for learning and revision. The goal is to understand the concepts, recognise exam patterns, and improve through explanations — not memorise copied exam dumps.

Reviewed byJohnson Ajibi· MSc IT Security

20 questionsDomain: Resilience And Fault Injection

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What to know about Resilience And Fault Injection

Resilience And Fault Injection questions test whether you can apply the concept in context, not just recognise a definition.

How the topic appears in realistic exam-style scenarios.

Which detail in the question changes the correct answer.

How to eliminate plausible but wrong options.

How to connect the question back to the wider exam objective.

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Common Resilience And Fault Injection exam traps

▸Answering from memory before reading the full scenario.
▸Missing a constraint such as cost, availability, security, scope or command context.
▸Choosing a broad answer when the question asks for the most specific fix.
▸Ignoring why the wrong options are tempting.

Practice set

Resilience And Fault Injection questions

20 questions · select your answer, then reveal the explanation

Question 1mediummulti select

Read the full Resilience And Fault Injection explanation →

Which THREE settings are part of the 'outlierDetection' configuration in a DestinationRule?

Trap 1: requestRetryCount

Retries are handled in retries block, not outlier detection.

Trap 2: maxConnectionTimeout

Not a valid outlier detection field.

Study all Resilience And Fault Injection common traps →

A
interval
Defines the duration of the analysis window.
B
baseEjectionTime
Defines how long a host stays ejected.
C
requestRetryCount
Why wrong: Retries are handled in retries block, not outlier detection.
D
maxConnectionTimeout
Why wrong: Not a valid outlier detection field.
E
consecutive5xxErrors
Monitors failures to determine ejection.

Resilience And Fault Injection practice questions

What to know about Resilience And Fault Injection

Common Resilience And Fault Injection exam traps

Resilience And Fault Injection questions

Which THREE settings are part of the 'outlierDetection' configuration in a DestinationRule?

Which TWO fields are required when configuring an 'abort' fault injection in a VirtualService?

To test how your application handles service unavailability, you want to return an HTTP 503 error for 20% of requests to the 'catalog' service. Which fault injection setting do you use?

You want to limit the number of concurrent connections to the 'payment' service to 100. Where is this configuration set?

You need to limit the number of concurrent connections to the 'order-service' to prevent cascading failures. Which Istio resource should you configure?

You have a DestinationRule with outlier detection enabled. If a host returns 5 consecutive 5xx errors and the 'interval' is set to 1s, what happens if 'baseEjectionTime' is 30s?

Which field in the trafficPolicy of a DestinationRule controls the maximum number of pending requests in the connection pool?

You need to ensure that a request to the 'orders' service times out if it takes longer than 2 seconds. Which field in the VirtualService should you configure?

What is the default timeout for an HTTP request in Istio when no VirtualService is defined?

To test the resilience of your microservice architecture, you want to introduce a 5-second delay to 50% of the requests directed to the 'catalog-service'. Where do you define this configuration?

You want to configure your microservice to be more resilient. Which THREE of the following are valid fields within an 'outlierDetection' policy in a DestinationRule?

Which TWO options are required to properly implement an abort fault injection in a VirtualService?

You want to simulate a 5-second network latency for 10% of requests to the 'cart' service. Which VirtualService configuration is correct?

An application is experiencing intermittent errors. You decide to use outlier detection to eject unhealthy pods. Which field in the DestinationRule controls the ejection of hosts after a certain number of 5xx errors?

You need to limit the number of concurrent connections to the 'orders' service. Which field in the DestinationRule do you configure?

A service is returning 5xx errors frequently. You want to eject instances that return 5 consecutive 5xx errors. Which OutlierDetection setting is required?

Where do you define the connection pool settings for a service?

Which of the following is a valid method for performing fault injection?

You are testing resilience. You want to inject an HTTP 503 error for 20% of traffic to the 'catalog' service. Which fault setting is correct?

You notice that a pod is being ejected by Outlier Detection despite only having occasional errors. How do you increase the interval between ejection scans?

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