Exam 13: Application Architecture and Modeling

Vertical replication is when different columns in a database are replicated to different database servers.

A network architecture DFD is a physical data flow diagram that allocates processors (clients and servers) and devices (e.g. machines and robots) to a network, and establishes (1) the connectivity between the clients and servers; and (2) where users will interact with the processors (usually only the clients).

A web server hosts Internet or intranet web sites. It communicates with fat and thin clients by returning documents and data to them.

A server that hosts services for e-mail, calendaring, and other work group functionality is known as a(n):

A distributed presentation client/server system is a solution in which the application logic, data manipulation and data layers are shifted from the legacy system to reside on the client. The presentation and presentation logic layers remain on the server (usually a mainframe.

Duplication is the act of determining how to best distribute or duplicate application components (data, processes, and interfaces) across the network.

A fat client is a personal computer, notebook computer or workstation that is typically more powerful (and expensive. in terms of processor speed, memory, and storage capacity.

_________________________________ is utility software that enables communication between different processors in a system. It may be built into the respective operating systems or added through purchased products that allow the programmers to ignore underlying communication protocols.

A server in the client/server model must be more powerful and capable than a server in the file server model.

Which of the following best explains the trend toward distributed systems?

A physical process is either a processor, such as a computer or person, or the technical implementation of specific work to be performed, such as a computer program or manual process.

A physical data store represents the implementation of one of the following: (1) a database; (2) a table in a database; (3) a computer file; (4) a tape or media backup of anything important; (5) any temporary file or batch as needed by a program; or (6) any type of non-computerized file.

A distributed data client/server system is also called two-tiered client/server computing.

Microsoft Access uses a file server architecture.

A distributed data and application client/server system is a solution in which: (1) the data and data manipulation layers are placed on their own server(s); (2) the application logic is placed on its own server; and (3) only the presentation logic and presentation layers are placed on the clients.

Which of the following is NOT one of the basic types of distributed systems architecture?

Most database servers host an SQL database engine such as Oracle, Microsoft SQL Server, or IBM DB2 Universal Database.

Presentation middleware allows a programmer to build user interface components that can talk to web browsers or desktop GUI.

A(n) _______________________________________________ system is a solution in which the data and data manipulation layers are placed on the server(s), and the application logic, presentation logic, and presentation layers are placed on the clients. This is also called two-tiered client/server computing.

Which of the following is NOT represented as a physical data store?