tailieunhanh - Giáo trình hình thành ứng dụng phân tích cấu tạo và công dụng của máy in theo setup catridge p5

Tham khảo tài liệu 'giáo trình hình thành ứng dụng phân tích cấu tạo và công dụng của máy in theo setup catridge p5', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | LAN Response Question 2. File sharing VS client server The file sharing model Continuousting to page 28 The client server model File sharing - File are shared for a lot of machines in the network each machine can access to the shared files - It can create heavy network traffic each access to a large file can potentially block of the file showing the system amount of information temporarily unavailable to other user Question 3. Distributed Database Topology Client server Database are stored in the server machines and client machines can send request for appropriate data Only the records matching the request criteria raresent back to client machines so the sys never has heavy traffic - With distributed processing system user can access data that is located among a number of physically separate servers. It provides user with a globol view of the data. - With distributed database the problems with implementing still exists. - Developing distributed database application requires extensive planning to anticipate the many complex possibilities. - For a large number of transactions travelling across the network the capacity of communication lines and the possible impact a system must be carefully considered. Chapter 12 THE TCP IP PROTOCOL SUITE. Question 1. The OSI model Open System Interconnection - OSI model adopted in 1983 by IOS international Organization Standardization which is a framework for defining standards for linking hetenogenerous computer - The communication function are pastitioned into a vertical set of layers. Each layer performs are lated subset of the functions required to communicate with other sys - The OSI layers Physical concerned with transmission of unstructured bit stream over physical medium deals with the mechinical electrical functional and procedual characteristrics to access the physical medium Data link provides for the reliable transfer of information across the physical link send blocks of data with the necessary synchronization error .