NETWORKS
A network is a set of devices connected by communication links.A node can be a computer,printer or any other device capable of sending or receiving data generated by other nodes on the network.
DISTRIBUTED PROCESSING
Most networks use distributed processing in which task is divided among multiple computers.instead of one single large machine being responsible for all aspects of a process ,separate computers handle asubset.
NETWORK CRITERIA
A network must be able to meet a certain number of criteria. The most important of these are performance,reliability,and security.
Performance
Performance can be measured in many ways including transit time and response time.Transit time is amount of time required for a message to travel from one device to another.Response time is the elapsed time between an inquiry and a response.
Reliability
In addition to accuracy of delivery,network reliability is measured by the frequency of failure,the time takes a link to recover from a failure and the networks robustness in a catastrophe.
Security
Network security issues include protecting data from unauthorized access,protecting data from damage and development and also implementing policies.
A network is a set of devices connected by communication links.A node can be a computer,printer or any other device capable of sending or receiving data generated by other nodes on the network.
DISTRIBUTED PROCESSING
Most networks use distributed processing in which task is divided among multiple computers.instead of one single large machine being responsible for all aspects of a process ,separate computers handle asubset.
NETWORK CRITERIA
A network must be able to meet a certain number of criteria. The most important of these are performance,reliability,and security.
Performance
Performance can be measured in many ways including transit time and response time.Transit time is amount of time required for a message to travel from one device to another.Response time is the elapsed time between an inquiry and a response.
Reliability
In addition to accuracy of delivery,network reliability is measured by the frequency of failure,the time takes a link to recover from a failure and the networks robustness in a catastrophe.
Security
Network security issues include protecting data from unauthorized access,protecting data from damage and development and also implementing policies.
No comments:
Post a Comment