What are the components of distributed system?
System Components in a Distributed System
- primary system controller.
- system data store.
- database.
What are the main concepts of a distributed system?
Distributed architecture is based on the idea of distributed system concepts such as availability, consistency, durability, idempotency, and persistence.
Why naming is important in distributed system what should be the features of good naming system?
A naming system should allow many different objects to be identified by the same name. Meaningful names. A name can be simply any character string identifying some object. However, for users, meaningful names are preferred to lower level identifiers such as memory pointers, disk block numbers, or network addresses.
What are the characteristics of distributed file system?
Features of DFS :
- Transparency : Structure transparency –
- User mobility : It will automatically bring the user’s home directory to the node where the user logs in.
- Performance :
- Simplicity and ease of use :
- High availability :
- Scalability :
- High reliability :
- Data integrity :
What is structured naming?
11.2 Structured Naming. • Names are commonly organized into what is called a name space. Name space for structured names can be represented as a labeled, directed graph with two types of nodes- leaf nodes and directory nodes.
What is an example of a distributed system?
A distributed system allows resource sharing, including software by systems connected to the network. Examples of distributed systems / applications of distributed computing : Intranets, Internet, WWW, email. Telecommunication networks: Telephone networks and Cellular networks.
What are the distributed file system?
What is a Distributed File System? A distributed file system (DFS) differs from typical file systems (i.e., NTFS and HFS) in that it allows direct host access to the same file data from multiple locations. Indeed, the data behind a DFS can reside in a different location from all of the hosts that access it.
What are the key characteristics of distributed system?
Key characteristics of distributed systems
- Resource sharing.
- Openess.
- Concurrency.
- Scalability.
- Fault tolerance.
- Transparency.
How is a naming system different from a nondistributed system?
To resolve names, it is necessary to implement a naming system. The difference between naming in distributed systems and nondistributed systems lies in the way naming systems are implemented. In a distributed system, the implementation of a naming system is itself often distributed across multiple machines.
How is the naming faciliy used in a distributed system?
The naming faciliy of a distributed operating system enables users and programs to assign character-stringnames to objects and subsequently use these namesto refer to those objects. The locating faciliy, which is an integral part of the naming facility, maps an object’s name to the object’slocation in a distributed system.
How are database names determined in a distributed system?
Distributed systems simply extend the hierarchical naming model by enforcing unique database names within a network. As a result, an object’s global object name is guaranteed to be unique within the distributed system, and references to the object’s global object name can be resolved among the nodes of the system.
How are two tiered naming schemes used in distributed systems?
Solution: Two-Tiered Scheme, Locate the entity in local registry first, then contact the Entity’s Home location. (Mohan and Jain, 1994) applied it in Mobile Telephony.