30 Questions
What are the main characteristics of distributed systems as highlighted in the text?
Concurrency of components, no global clock, independent failures
Why is concurrency considered a key characteristic of distributed systems?
It facilitates sharing resources and executing tasks simultaneously
Why is the absence of a global clock significant in distributed systems?
It allows for the coordination of program actions through message exchange
What is the impact of independent failures in a distributed system?
Failure in one component does not necessarily bring down the entire system
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
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
What technological advancements led to the development of cloud computing and grid computing?
Pervasive networking
Which type of computing allows users to perform computing tasks while on the move or in different locations?
Mobile and ubiquitous computing
In client-server computing, which party requests a service from the server?
Client
What does ubiquitous computing involve?
Harnessing small computational devices in physical environments
Which trend supports services like audio and video conferences, webcasting, and real-time streaming?
Distributed multimedia systems
What concept is defined as the performance of computing tasks while the user is on the move?
Mobile computing
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
Which term describes a running program on a networked computer that accepts requests from other computers to perform a service and responds appropriately?
Server
What is used to mask the heterogeneity of underlying networks, hardware, operating systems, and programming languages in distributed systems?
Middleware
Which element runs continuously on a networked computer accepting requests from other computers?
Server
What is the term used for the initiator of requests in a distributed system?
Client
What main challenge is faced as distributed systems grow due to differences in computers and networks?
Heterogeneity
What is the primary factor that determines the openness of distributed systems?
Addition of resource-sharing services
Which of the following is NOT a component considered when dealing with the security of information resources in distributed systems?
Accessibility
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
When can a system be considered scalable?
When it can handle increase in resources and users effectively
What is the key approach to resolving the openness issue in distributed systems according to the text?
Specifying and documenting key software components
Which aspect of security involves protection against alteration and corruption of information resources?
Integrity
What is the main benefit of the Functional Integration Model?
Availability of technology and expertise
Why is the Functional Integration Model considered complex and expensive?
Enabling technology may not scale to enterprise-class applications
What is a key disadvantage of the Functional Integration Model compared to other approaches?
Difficulty in accessing the business logic of some applications
Which characteristic distinguishes Distributed Processing Middleware?
Facilitates communication between software components using defined interfaces or messages
What makes the Functional Integration Model an ultimate EAI solution for many enterprises?
Robust integration capabilities and true code reuse infrastructure
Why may enabling technology fall short in the Functional Integration Model?
It may not support enterprise-class applications or may have other limitations
Test your knowledge on computer servers and services with this quiz. Learn about the definitions of servers and services, and how they function in a computer system. Explore the differences between servers and clients in the realm of networked computers.
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