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What is loosely and tightly coupled federated databases?
FDBSs can be categorized as loosely coupled or tightly coupled based on who manages the federation and how the com- ponents are integrated. interoperable database system ( loosely ) An FDBS is loosely coupled if it is the user's responsibility to create and maintain the federation and there is no control enforced by the feder- ated system and its administrators. A federation is tightly coupled if the federation and its adminis- trator(s) have the responsibility for creat- ing and maintaining the federation and actively control the access to component DBSs. A loosely coupled FDBS always supports multiple federated schemas. A tightly coupled FDBS may have one or more federated schemas. A tightly coupled FDBS is said to have single federation if it allows the creation and management of only one federated schema. A tightly coupled FDBS is said to have multiple federations if it allows the creation and management of multiple federated schemas
Is distributed system is loosely coupled or tightly coupled?
It can be either or even both - depends on how the designer(s) designed the distributed systems
What are tightly and loosely coupled multiprocessor systems?
In a tightly coupled multiprocessor system, processors share a common memory and are connected through a high-speed interconnection network, allowing for efficient communication and coordination. In contrast, in a loosely coupled multiprocessor system, processors have separate memories and communicate through message passing, which can lead to slower performance but greater flexibility in terms of scalability and fault tolerance.
What is the definition of clusters in math?
a group of loosely coupled computers that work together closely
What is a loosely coupled sytem?
A loosely coupled system is one in which each separate part (module) has very little direct interaction with each other module. The modules act largely independently of each other, each performing a small set of functions with data being passed from one module to another. This is an ideal situation because a loosely coupled system will require very few code changes if new modules are added, removed, or changed. A tightly coupled system will require a lot of recoding to make such changes. In the days where memory capacity was a limiting factor, tightly coupled code was essential to make it smaller and more efficient. Nowadays, except in some specialist applications, this is less importanat and having loosely coupled systems allows code to be developed by different people in different places and at different times.
What is the difference between closely coupled configuration and loosely coupled configuration in microprocessor?
Loosely coupled microprocessors are more like independent processors joined via a small communication link (a high speed bus or cable). This means that the connected microprocessors have their own local memory sets. They are low in performance. Also only microprocessors that can work independently may be used. Tightly coupled microprocessors share a common memory for the purpose of communication. One processor (slave) is dependent on the other (master). They are good at performance. The connected processors also have local memory sets for general purposes.
Why is chunking important during the components-level design review process?
Chunking allows reviewers to combine related concepts into bigger chunks. The components can serve as chinks ( if they are highly cohesive and loosely coupled) making it easier for reviewers to keep track of the interactions of several components during a design review ran that a large number of individual classes and their methods.
Why is chunking important during the component-level design review process?
Chunking allows reviewers to combine related concepts into bigger chunks. The components can serve as chinks ( if they are highly cohesive and loosely coupled) making it easier for reviewers to keep track of the interactions of several components during a design review ran that a large number of individual classes and their methods.
Why is chunking important during the component level design review process?
Chunking allows reviewers to combine related concepts into bigger chunks. The components can serve as chinks ( if they are highly cohesive and loosely coupled) making it easier for reviewers to keep track of the interactions of several components during a design review ran that a large number of individual classes and their methods.
What are tightly and loosely coupled cluster systems?
Tightly coupled clusters are a group of machines that are largely dependent on each other. They are often used when latency is an important factor in the application. For example, a web cluster is often a tightly coupled cluster as the web servers/application servers require quick and consistent access to a shared storage system (network filesystem or database).Loosely coupled clusters are a group of machines (or groups of groups) which can operate independent of each other. Communications between nodes (or subclusters) is often done via a queuing system.
What is difference and similar between loosely-coupled system and tightly-coupled system?
The way I understand it is, that tightly coupled architecture does not provide a lot of flexibility for change when compared to loosely coupled architecture. For eg., if two disparate systems exchange messages, the message format has to be the same if they are tightly coupled. If the source uses java, the receiver should be able to read the message using java. Also, if any change is made is made to the source or the receiver systems, the other end has to be modified appropriately. But in case of loosely coupled architectures, message formats or operating platforms or revamping the business logic does not impact the other end. If the system is taken down for a revamp, of course the other end will not be able to access the service for a while but other than that, the unchanged end can resume message exchange as it was before the revamp.
Define essential properties of distributed operating system?
distribute the computation among several physical processors.it is a loosely coupled system.each processor has its own memory.
