NOS CH3

What is the responsibility of the Presentation layer in layered application architecture?

• Managing the system databases

• Providing application specific functionality

• Presenting the results

• Running the presentation software

What is the main disadvantage of the thin-client model?

• Placing heavy processing load on the server

• Placing heavy processing load on the client

• Managing the system databases

• Providing application specific functionality

Which model is most suitable for new C/S systems?

• Fat-client model

• Distributed object architectures

• Client-server architectures

• Thin-client model

What is the main disadvantage of the fat-client model?

• Placing heavy processing load on the server

• Placing heavy processing load on the client

• Moving jobs to more lightly loaded sites

• Sharing files or printing at remote sites

What is the main reason for using distributed systems for resource sharing?

• Distribute sub computations among various sites stored concurrently

• Sharing files or printing at remote sites

• Moving jobs to more lightly loaded sites

• Detect and recover from site failure

What is the main purpose of middleware in a distributed system?

• Providing application specific functionality

• Running the presentation software

• Presenting the results

• Managing and supporting the different components of a distributed system

Which is an example of middleware?

• All of the above

• Communication controllers

• Data converters

• Transaction processing monitors

What is the simplest distributed system model?

• Distributed object architectures

• Thin-client model

• Multiprocessor architectures

• Client-server architectures

In client-server architectures, what do clients and servers represent?

• Application processing

• Data management

• Physical processes

• Logical processes

What is the main purpose of UDP and TCP in a distributed system?

• Running the presentation software

• Managing and supporting the different components of a distributed system

• Providing application specific functionality

• Communication between processes on a network