Tugas – True Or False
1. An application architecture specifies the technologies to be used to implement one or more
(possibly all) information systems in terms of data, process, interface, and how these
components interact and communicate across a network.
A. True
B. False
2. Logical data flow diagrams model the technical and human design decisions to be
implemented as part of an information system. They communicate technical choices and
other design decisions to those who will actually construct and implement the system.
A. True
B. False
3. Logical processes are frequently assigned to specific physical processors such as PCs,
servers, mainframes, people or other devices in a computer network.
A. True
B. False
4. A reason that a logical process might be split into multiple physical processes is to show
multiple, but different implementations of the same logical process.
A. True
B. False
5. If you split a logical process into multiple physical processes, or add additional physical
processes, you have to add all necessary data flows to preserve the essence of the original
logical process.
A. True
B. False
6. A physical database schema 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. True
B. False
7. In centralized systems, a central, multi-user computer hosts all the data, process and
interface components of an information system. The users interact with this host computer
via terminals (or PCs emulating terminals), but virtually all of the actual processing and
work is done on the host computer.
A. True
B. False
8. Today, many personal computers and workstations are used to support stand-alone
systems.
A. True
B. False
9. A file server system is a LAN-based solution in which a mainframe hosts the data layer and
the data manipulation layer. All other layers of the information system application are
implemented on the client PC.
A. True
B. False
10. In a typical file server architecture application, the database engine (such as Access) may
be stored on a network server, but the actual Access program must be installed or
executed from each PC that uses the database.
A. True
B. False
11. A database server hosts one or more shared databases (like a file server) but also
executes all database commands and services for information systems (unlike a file
server).
A. True
B. False
12. A database server hosts services that ultimately ensure that all database updates for an
single business transaction succeed or fail as a whole.
A. True
B. False
13. A distributed presentation client/server system is a solution in which the presentation and
presentation logic layers are shifted from the server of a legacy system to reside on the
client. The application logic, data manipulation and data layers remain on the server
(usually a mainframe).
A. True
B. False
14. A distributed data client/server system is a solution in which the data and data
manipulation layers are placed on the client(s), and the application logic, presentation
logic, and presentation are placed on the server(s). This is also called two-tiered
client/server computing.
A. True
B. False
15. A distributed data and application client/server system is a solution in which: (1) the data
and data manipulation layers are place 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.
A. True
B. False
16. Client/server computing and network computing are synonyms for similar techniques to
physically implement systems.
A. True
B. False
17. With the development of an intranet and corporate applications in the intranet
environment, multiple different computer architectures are no longer an issue because
everything runs in a web browser.
A. True
B. False
18. A distributed relational database management system (or distributed RDBMS) is a software
program that controls access to and maintenance of the stored data in the relational
format. It also provides for backup, recovery and security. It is sometimes called a
client/server database management system.
A. True
B. False
19. The majority of systems have slowly evolved from batch processing to on-line or real-time
processing.
A. True
B. False
20. Middleware 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 middleware products. Middleware products allow the programmers to ignore
underlying communication protocols.
A. True
B. False