Computer Servers and Services Quiz

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What are the main characteristics of distributed systems as highlighted in the text?

Concurrency of components, no global clock, independent failures (correct)

Sequential components, no global clock, synchronized failures

Concurrency of components, global clock, synchronized failures

Sequential components, global clock, dependent failures

Why is concurrency considered a key characteristic of distributed systems?

It allows for sequential operations on components

It facilitates sharing resources and executing tasks simultaneously (correct)

It avoids independent failures in the system

It ensures a global clock synchronization

Why is the absence of a global clock significant in distributed systems?

It prevents the sharing of resources among components

It ensures all components operate sequentially

It allows for the coordination of program actions through message exchange (correct)

It leads to synchronized failures

What is the impact of independent failures in a distributed system?

Failure in one component does not necessarily bring down the entire system Signup and view all the answers

How does the capacity of a distributed system grow with the introduction of more resources?

The capacity increases as more resources (computers) are added to the network Signup and view all the answers

Why is it important for system designers to prepare for possible failures in a distributed system?

To mitigate the impact of independent failures on the entire system Signup and view all the answers

What technological advancements led to the development of cloud computing and grid computing?

Pervasive networking Signup and view all the answers

Which type of computing allows users to perform computing tasks while on the move or in different locations?

Mobile and ubiquitous computing Signup and view all the answers

In client-server computing, which party requests a service from the server?

Client Signup and view all the answers

What does ubiquitous computing involve?

Harnessing small computational devices in physical environments Signup and view all the answers

Which trend supports services like audio and video conferences, webcasting, and real-time streaming?

Distributed multimedia systems Signup and view all the answers

What concept is defined as the performance of computing tasks while the user is on the move?

Mobile computing Signup and view all the answers

What is the term used to refer to a distinct part of the computer system that manages a collection of related resources and presents their functionality to users and applications?

Service Signup and view all the answers

Which term describes a running program on a networked computer that accepts requests from other computers to perform a service and responds appropriately?

Server Signup and view all the answers

What is used to mask the heterogeneity of underlying networks, hardware, operating systems, and programming languages in distributed systems?

Middleware Signup and view all the answers

Which element runs continuously on a networked computer accepting requests from other computers?

Server Signup and view all the answers

What is the term used for the initiator of requests in a distributed system?

Client Signup and view all the answers

What main challenge is faced as distributed systems grow due to differences in computers and networks?

Heterogeneity Signup and view all the answers

What is the primary factor that determines the openness of distributed systems?

Addition of resource-sharing services Signup and view all the answers

Which of the following is NOT a component considered when dealing with the security of information resources in distributed systems?

Accessibility Signup and view all the answers

What are the primary security challenges that are not fully met in distributed systems according to the text?

Denial of service attacks and security of mobile code Signup and view all the answers

When can a system be considered scalable?

When it can handle increase in resources and users effectively Signup and view all the answers

What is the key approach to resolving the openness issue in distributed systems according to the text?

Specifying and documenting key software components Signup and view all the answers

Which aspect of security involves protection against alteration and corruption of information resources?

Integrity Signup and view all the answers

What is the main benefit of the Functional Integration Model?

Availability of technology and expertise Signup and view all the answers

Why is the Functional Integration Model considered complex and expensive?

Enabling technology may not scale to enterprise-class applications Signup and view all the answers

What is a key disadvantage of the Functional Integration Model compared to other approaches?

Difficulty in accessing the business logic of some applications Signup and view all the answers

Which characteristic distinguishes Distributed Processing Middleware?

Facilitates communication between software components using defined interfaces or messages Signup and view all the answers

What makes the Functional Integration Model an ultimate EAI solution for many enterprises?

Robust integration capabilities and true code reuse infrastructure Signup and view all the answers

Why may enabling technology fall short in the Functional Integration Model?

It may not support enterprise-class applications or may have other limitations Signup and view all the answers