Multi-tier Architecture Performance Issues Quiz
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Questions and Answers

What is a common cause of performance issues in multi-tier architectures?

  • Network congestion (correct)
  • Memory leaks
  • CPU contention
  • Disk I/O
  • Which of the following directly affects user-perceived performance?

  • Throughput
  • Concurrency
  • Scalability
  • Latency (correct)
  • Increasing __ can help reduce queue lengths in a multi-tier application.

  • Locks
  • Caches
  • Servers
  • Threads (correct)
  • Which of the following is NOT a common remedy for database bottlenecks?

    <p>Increasing network bandwidth</p> Signup and view all the answers

    Which technique improves performance by allowing asynchronous processing?

    <p>Message queuing</p> Signup and view all the answers

    What is the primary benefit of load testing?

    <p>Identifying performance bottlenecks</p> Signup and view all the answers

    Which is NOT a common reason for performance issues in multi-tier applications?

    <p>Blocking I/O</p> Signup and view all the answers

    Which technique improves efficiency by reducing duplicated data transfer?

    <p>Data caching</p> Signup and view all the answers

    Vertical scaling improves __ in multi-tier architectures.

    <p>Throughput</p> Signup and view all the answers

    Which testing type verifies application performance under increasing user load?

    <p>Load testing</p> Signup and view all the answers

    Which technique verifies application behavior under sustained high load?

    <p>Soak testing</p> Signup and view all the answers

    Caching improves performance primarily by:

    <p>Offloading databases</p> Signup and view all the answers

    Increasing query efficiency reduces:

    <p>Database load</p> Signup and view all the answers

    __ bottlenecks are often best addressed by optimization and indexing.

    <p>Database</p> Signup and view all the answers

    Study Notes

    Performance Issues in Multi-Tier Architectures

    • A common cause of performance issues is database bottlenecks.

    Factors Affecting User-Perceived Performance

    • Increasing throughput directly affects user-perceived performance.

    Reducing Queue Lengths

    • Increasing throughput can help reduce queue lengths in a multi-tier application.

    Remedies for Database Bottlenecks

    • Using a faster database is NOT a common remedy for database bottlenecks.

    Asynchronous Processing

    • Message queuing is a technique that improves performance by allowing asynchronous processing.

    Load Testing

    • The primary benefit of load testing is to identify performance bottlenecks in an application.

    Common Reasons for Performance Issues

    • Insufficient resources is NOT a common reason for performance issues in multi-tier applications.

    Data Transfer Efficiency

    • Data compression is a technique that improves efficiency by reducing duplicated data transfer.

    Vertical Scaling

    • Vertical scaling improves throughput in multi-tier architectures.

    Performance Testing

    • Load testing is a type of testing that verifies application performance under increasing user load.

    Sustained High Load Testing

    • Soak testing is a technique that verifies application behavior under sustained high load.

    Caching

    • Caching improves performance primarily by reducing the number of database queries.

    Query Efficiency

    • Increasing query efficiency reduces the time spent on database queries.

    Database Optimization

    • Database bottlenecks are often best addressed by optimization and indexing.

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    Description

    Test your knowledge of performance issues in multi-tier architectures with this multiple-choice quiz. Covering topics such as common causes of performance issues, user-perceived performance factors, and remedies for database bottlenecks.

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