Question 1

Coding,testing,and debugging are part of the phase of the Systems Development Life Cycle (SDLC).
A)planning
B)analysis
C)detailed systems design
D)implementation

Accepted Answer

Coding, testing, and debugging are part of the implementation phase of the SDLC, which involves actually building and deploying the system. Planning, analysis, and detailed systems design come earlier in the SDLC, focusing on defining the project, gathering requirements, and creating a blueprint for the system.

Question 2

Decentralized design is typical of relatively simple,small databases and can be successfully done by a single person.

Accepted Answer

The answer of Decentralized design is typical of relatively simple,small...

Question 3

The overall purpose of the database initial study is to create the conceptual design.

Accepted Answer

The overall purpose of the database initial study is to understand and define the problem the database system needs to solve, determine the scope and boundaries of the database system, and gather the general requirements for the project. The conceptual design phase comes after the initial study and involves defining the high-level structure of the database without getting into the details of the implementation.

Question 4

Discovery of user requirements,existing system evaluation,and logical system design are part of the phase of the Systems Development Life Cycle (SDLC).
A)planning
B)analysis
C)detailed systems design
D)implementation

Accepted Answer

Discovery of user requirements, existing system evaluation, and logical system design are all activities that occur during the analysis phase of the SDLC. The planning phase involves deciding whether or not to proceed with the project, creating a project plan and defining project goals. The detailed systems design phase involves creating detailed specifications and designs for the system. The implementation phase involves creating the actual system based on the design specifications.

Question 5

Database performance is one of the least important factors in all database implementations.

Accepted Answer

Database performance is a critical factor in all database implementations. Poor database performance can lead to slow application response times, decreased user satisfaction, and ultimately, lost revenue. Therefore, database performance optimization is an essential aspect of database management.

Question 6

"Should the existing system be replaced?" is a question that is asked during the stage of the Systems Development Life Cycle (SDLC).
A)planning
B)analysis
C)implementation
D)maintenance

Accepted Answer

The answer of "Should the existing system be replaced?" is...

Question 7

To analyze the company situation,the database designer must discover what the company's operational components are,how they function,and how they interact.

Accepted Answer

This statement is true. To design a useful database, the designer needs to understand the company's operations, including the different components and how they work together, so that the database can accurately capture and support the business processes.

Question 8

The traditional Systems Development Life Cycle (SDLC)is divided into phases.
A)two
B)three
C)four
D)five

Accepted Answer

The traditional SDLC is divided into five phases: planning, analysis, design, implementation, and maintenance.

Question 9

The process of creating an information system is known as .
A)systems development
B)database development
C)network development
D)enterprise development

Accepted Answer

The process of creating an information system involves various stages like planning, analysis, design, implementation, and maintenance. This entire process is known as systems development. Database development, network development, and enterprise development are all part of the systems development process, but not the entire process itself.

Question 10

In most modern relational DBMSs,a new database implementation requires the creation of special storage-related constructs to house the end-user tables.

Accepted Answer

Relational DBMSs typically require the creation of tablespaces, data files, and other storage-related constructions to house user tables.

Question 11

The main purpose of a backup is to guarantee database restoration following a hardware or software failure.

Accepted Answer

The main purpose of a backup is to ensure that in case of hardware or software failure, the database can be restored to a previous state before the failure occurred.

Question 12

The testing and evaluation phase of the Database Life Cycle (DBLC)occurs after applications programming.

Accepted Answer

The answer of The testing and evaluation phase of the...

Question 13

Data integrity is enforced by the database management system (DBMS)through the proper use of primary and foreign key rules.

Accepted Answer

Data integrity is one of the main responsibilities of a DBMS and is maintained through the use of primary and foreign keys. Primary keys ensure that each record in a table is unique, while foreign keys enforce referential integrity between related tables.

Question 14

After the initial declarations in Database Life Cycle (DBLC),the database designer must carefully probe in order to generate additional information that will help define the problem within the larger framework of company operations.

Accepted Answer

This statement is true. After the initial declarations in DBLC, the database designer must gather more information about the problem in the context of the company operations to develop an effective database solution.

Question 15

Physical design becomes simpler when data is distributed at different locations.

Accepted Answer

Distributing data across different locations can complicate physical design due to the need for managing data consistency, replication, and network communication between sites.

Question 16

"What are the requirements of the current system's end users?" is a question asked during the phase of the Systems Development Life Cycle (SDLC).
A)planning
B)analysis
C)implementation
D)maintenance

Accepted Answer

The question pertains to the analysis phase of the Systems Development Life Cycle (SDLC), which is focused on gathering information about the current system and its requirements. The analysis phase is aimed at understanding the end-users' requirements, and this question directly addresses that aspect.

Question 17

The database administrator must be prepared to perform routine maintenance activities within the database.

Accepted Answer

The database administrator is responsible for routine maintenance activities such as backups, database optimization, managing user accounts and permissions, monitoring performance, etc. It is essential to ensure the smooth functioning, security, and integrity of the database.

Question 18

Evaluation of database performance is rendered easier by the fact there are no standards to measure it.

Accepted Answer

Evaluation of database performance is not easier without standards to measure it. Standards provide a benchmark against which performance can be measured and compared. Without standards, it is difficult to determine whether a database is performing well or not.

Question 19

A system maintenance activity generated in response to changes in the business environment is referred to as corrective maintenance.

Accepted Answer

Corrective maintenance is performed in response to an identified issue or fault in the system, aiming to correct the defects. Changes in the business environment typically lead to adaptive maintenance, which adjusts the system to operate in the new conditions.

Question 20

The assignment of access rights may restrict operations on predetermined objects such as databases,tables,views,queries,and reports.

Accepted Answer

Access rights can be assigned to specific objects in order to restrict certain operations on them. This is a common practice in database management systems and other software applications where user permissions and access control are important factors. By limiting the actions that can be performed on certain objects, organizations can prevent unauthorized access and protect sensitive data from being modified, deleted, or viewed without permission.

Quiz 9: Database Design

Coding,testing,and debugging are part of the phase of the Systems Development Life Cycle (SDLC) .