Distributed Object Applications: Thin Clients
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Questions and Answers

What is a key advantage of using Shared Database as a method for integration?

  • Increases the need for extra tools and integration packages
  • Causes performance bottlenecks
  • Always consistent data (correct)
  • Requires deep knowledge of application internals

Which aspect is a difficulty associated with Shared Database integration method?

  • Performance bottlenecks and deadlocks (correct)
  • Finding semantic dissonance issues
  • Compatibility with various external packages
  • Easy agreement on a unified schema

What benefit does Decoupling applications provide in integration?

  • Creates a need for additional integration packages
  • Applications can freely make internal changes (correct)
  • Slows down the data processing
  • Requires deep knowledge of application internals

Why are time intervals during File Processing considered important?

<p>To ensure timely processing and error identification (C)</p> Signup and view all the answers

What does Semantic Dissonance refer to in the context of integration methods?

<p>Incompatibility between data meanings (D)</p> Signup and view all the answers

Why is it advantageous that almost all application development platforms can work with SQL in Shared Database integration?

<p>Forces out problems in semantic dissonance (A)</p> Signup and view all the answers

What is a key benefit of code re-use in software development?

<p>Empowers programmers to develop applications quickly (C)</p> Signup and view all the answers

How does isolated development benefit distributed object systems?

<p>Allows separate development of modules to meet system requirements (C)</p> Signup and view all the answers

Why does code re-use reduce the need for extensive system testing?

<p>Due to the maturity of components that have undergone testing (A)</p> Signup and view all the answers

What does the modular design of distributed object applications allow for?

<p>Changing the functionality without requiring a complete overhaul (B)</p> Signup and view all the answers

How does code maintenance benefit from the modular design of distributed object applications?

<p>Allows changing functionality without requiring an application overhaul (C)</p> Signup and view all the answers

What aspect of code re-use contributes to making Rapid Application Development (RAD) a reality?

<p>Empowering programmers to use existing plug-and-play components efficiently (A)</p> Signup and view all the answers

What is a benefit of having the majority of the distributed object application located on the server(s)?

<p>Eliminates the need for massive updates to all clients (B)</p> Signup and view all the answers

How does a thin client benefit from having major components on a server?

<p>Allows more client system resources to remain free (B)</p> Signup and view all the answers

What advantage does a thin client have when objects are distributed across a network of machines?

<p>Access to an infinite number of data repositories and legacy applications (B)</p> Signup and view all the answers

What technology enables method invocations on distributed objects as if they were local objects?

<p>CORBA (Common Object Request Broker Architecture) (B)</p> Signup and view all the answers

Why is it beneficial to have the bulk of application processing performed on high-end servers?

<p>Keeps the client-side application small and lightweight (B)</p> Signup and view all the answers

How does distributing objects across a network benefit a thin client?

<p>Provides access to legacy applications of unlimited size (A)</p> Signup and view all the answers

What is a drawback of Remote Procedure Invocation?

<p>It tightly couples applications together (C)</p> Signup and view all the answers

How do remote procedure calls compare to local calls?

<p>Remote calls look like local calls but don't act the same (D)</p> Signup and view all the answers

Why is it important to avoid coupling systems together in integration?

<p>Coupled systems can lead to unreliable application execution and development (C)</p> Signup and view all the answers

What is a key benefit of messaging in integrating applications?

<p>Messaging can be both immediate and asynchronous (B)</p> Signup and view all the answers

Why is asynchronous messaging considered a practical solution for distributed systems?

<p>Asynchronous messaging addresses the problems of distributed systems effectively (D)</p> Signup and view all the answers

How does messaging help with collaboration between separate systems?

<p>Messaging allows for timely collaboration without introducing unreliability (A)</p> Signup and view all the answers

What is the purpose of a Java Message Queue (JMQ)?

<p>To create, send, and receive messages within an application (D)</p> Signup and view all the answers

Which core component of a Java Message Queue describes the objects sent and involved in the conversion?

<p>Provider (C)</p> Signup and view all the answers

What role does a 'Producer' play in a Java Message Queue application?

<p>Creates and sends messages (D)</p> Signup and view all the answers

Which feature does Java Message Queue provide for communication in distributed systems?

<p>Highly scalable and asynchronous communication (D)</p> Signup and view all the answers

How does Java Message Queue enable different parts of an application to evolve independently?

<p>By providing a messaging service for inter-application communication (B)</p> Signup and view all the answers

What is the role of a 'Client' in a Java Message Queue system?

<p>Java application producing or receiving messages (C)</p> Signup and view all the answers

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