Database

Database

The Client-Server Database has 30 Questions
Which of the following statements is true about symmetric multiprocessing?

A single copy of the operating system resides in each processor.
Useful for situations where data must remain in memory to process.
Bottlenecks increase with uniprocessor systems because tasks are not shared.
The problems of memory contention are unlikely.
Activities of a DBMS occur in the processing component logic.

True
False
Which of the following items are not necessary for client/server?

Assure that tools will connect with middleware.
Understand the requirements.
Determine network bandwidth capabilities.
Include the use of a file server.
The presentation logic component is responsible for formatting and presenting data on the user's screen or other output device, and for managing user input from a keyboard or other input device.

True
False
A benefit of the three-tier architecture is which of the following?

New modules can be built to support specific business needs
Performance improves for compiled SQL statements
Results in a thinner client and database server
All of the above.
Symmetric multiprocessing (SMP) architectures are useful for situations where data must remain in memory during processing to achieve the desired performance level.

True
False
Which of the following statements is true concerning JDBC?

It is language independent.
It is similar in concept to ODBC.
It is useful for all object-oriented languages.
It consists of three main layers.
Massively parallel processing (MPP) systems require a complete copy of the operating system to be resident in each dedicated memory.

True
False
A characteristic of a file server is which of the following?

Manages file operations and is shared on a network.
Manages file operations and is limited to one PC.
Acts as a fat client and is shared on a network.
Acts as a fat client and is limited to one PC.
The Windows operating system and Windows applications are event driven.

True
False
Stored procedures have which of the following advantages?

It takes a longer time to write them as compared to writing Visual Basic.
Network traffic increases
Data integrity improves as multiple applications access the same stored procedure.
Result in thicker client and thinner database server.
With an asynchronous system, the requesting system waits for a response in real time.

True
False
Which of the following statements is a true statement concerning the open database connectivity standard (ODBC)?

Each vendor desiring to be ODBC-complaint provides an ODBC driver.
Requires certain criteria to be met in order to establish an ODBC connection.
Provides a programming interface that provides a common language for application programs to access and process SQL databases independent of the RDBMS accessed.
All of the above.
Query-by-Example (QBE) is the most widely available direct-manipulation database query language.

True
False
Which of the following is true concerning QBE?

An official standard has been defined for QBE.
QBE cannot be used for client/server systems.
QBE does not give the programmer a visual programming environment.
Complete applications can be written using QBE.
A fat client is a PC configured for handling user interfaces and some application processing, usually with no or limited local data storage.

True
False
Client/server security includes which of the following?

Physical security
Change control security
Measures taken to secure all systems
All of the above.
Client/server environments use a local area network (LAN) to support a network of personal computers, each with its own storage, that are also able to share common devices and software attached to the LAN.

True
False
An application program interface (API) is which of the following?

The same thing as ODBC.
Middleware that does not provide access to a database.
Middleware that provides access to a database.
The same thing as JDBC.
The database server is responsible for database storage, access, and processing.

True
False
Three-tier architecture includes which of the following?

Three server layers
A client layer and two server layers
Two client layers and one server layer
Three client layers
The first client/server architectures developed were file servers.

True
False
Which of the following is true concerning the mainframe?

It is the same thing as client/server.
Requires someone to decide which code should be on the workstation or the server.
Mission-critical systems have tended to remain there.
All of the above.
Centralized systems are more susceptible to security threats than client/server architectures.

True
False
A server cannot serve on which of the following levels?

Client Layer
Business Layer
Database Layer
All of the above.
Writing stored procedures takes less time than using Visual Basic or PowerBuilder to create an application.

True
False
The three different application logic components are which of the following?

Presentation, Client, and Storage
Presentation, Client, and Processing
Presentation, Processing, and Storage
Presentation, Processing, and Network
Data processing logic includes such activities as data validation and identification of processing errors.

True
False
A database server is responsible for which of the following?

Database storage
Data processing logic
Data presentation logic
All of the above.
ODBC requires the specific driver.

True
False