Accenture Senior Performance Test Engineer Interview Questions and Answers

Q1. Why PT required?
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Q2. Performance testing procedures for API
Ans. 
Performance testing procedures for API involve load testing, stress testing, and scalability testing.
• Conduct load testing to determine how the API performs under normal and peak load conditions.

• Perform stress testing to evaluate the API's stability and reliability under extreme conditions.

• Conduct scalability testing to assess the API's ability to handle increased workload by adding more resources.

• Monitor response times...read more
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Q3. APM tool use in PT?
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APM tools are commonly used in Performance Testing to monitor and analyze the performance of applications under load.
• APM tools help in identifying performance bottlenecks and optimizing application performance.

• Examples of popular APM tools include New Relic, Dynatrace, AppDynamics, and Datadog.

• These tools provide real-time monitoring, alerting, and performance analytics to help improve application performance.

• APM tools...read more
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Q4. Root Cause analysis in PY
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Root Cause analysis in PY involves identifying the underlying reason for performance issues.
• Identify the symptoms of the performance issue

• Gather data and metrics related to the performance problem

• Analyze the data to pinpoint the root cause

• Implement solutions to address the root cause
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About work experience

Q1. Asked some performance basics to advanced level questions, somecoding questions.
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Q2. What is PTLC in testing?
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PTLC stands for Performance Testing Life Cycle, which is a process followed in performance testing to ensure the performance of a system.
• PTLC involves planning, preparation, execution, and analysis of performance tests.

• It includes defining performance goals, creating test scenarios, executing tests, and analyzing results.

• PTLC helps in identifying performance bottlenecks and optimizing system performance.

• Example: In PTL...read more
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Q3. Make a python script that captures resources of a system.
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Python script to capture system resources
• Use psutil library to access system resources

• Collect CPU, memory, disk, and network usage data

• Display the captured resources in a readable format
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Q4. What is network bandwidth constraint in testing?
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Network bandwidth constraint in testing refers to limitations on the amount of data that can be transmitted over a network during testing.
• Network bandwidth constraint can impact the performance of an application or system being tested.

• It can lead to slow response times, timeouts, or even failures during testing.

• Examples of network bandwidth constraints include limited bandwidth on a shared network, network congestion, ...read more
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Q5. What is use of timers in JMeter?
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Timers in JMeter are used to simulate real user behavior by adding delays between requests.
• Timers help in controlling the load on the server by adding delays between requests.

• They can be used to simulate realistic user behavior by adding random or constant delays.

• Examples of timers in JMeter include Constant Timer, Gaussian Random Timer, and Uniform Random Timer.
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Q1. Technical questions
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Q1. Technical and project related questions
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Q1. Roles and responsibilities related questions
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Q1. Salary discussion
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Q1. Load runner related
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Q2. What is correlation
Ans. 
Correlation is a statistical measure that describes the relationship between two variables.
• Correlation can range from -1 to 1, with 1 indicating a perfect positive correlation, -1 indicating a perfect negative correlation, and 0 indicating no correlation.

• Correlation does not imply causation, meaning just because two variables are correlated does not mean that one causes the other.

• For example, if there is a positive cor...read more
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Q1. What are the HTTP responses explain
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Q2. Tell about correlations
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Q1. What is API testing
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API testing is a type of software testing that involves testing APIs directly to ensure they meet functionality, reliability, performance, and security requirements.
• API testing involves testing the functionality, reliability, performance, and security of APIs.

• It focuses on verifying that the API meets the requirements specified in its design.

• API testing can be done manually or using automated tools.

• Examples of API test
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Q1. What is thread group
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Thread group is a collection of threads that represent a group of virtual users in a performance test.
• Thread group defines the number of users and the ramp-up period for a performance test.

• Each thread in a thread group represents a virtual user that simulates real user behavior.

• Thread group allows for configuring the concurrency and distribution of virtual users during a test.

• Example: In JMeter, a Thread Group element ...read more
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Q1. What is aggregate report
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Aggregate report is a summary of performance test results showing key metrics like average response time, throughput, error rate, etc.
• Aggregate report provides a high-level summary of performance test results

• It includes metrics like average response time, throughput, error rate, and percentiles

• Helps in identifying performance bottlenecks and areas for improvement

• Commonly used in tools like JMeter to analyze performance
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Q1. What is view result tree
Ans. 
View Result Tree is a listener in JMeter that displays the results of performance tests in a tree format.
• View Result Tree is used to view the response data, request and response headers, and other details of each sample in a performance test.

• It can be used to debug issues in the test script by analyzing the details of each request and response.

• View Result Tree can also be used to view and analyze the performance metric...read more
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