CSI 3460 Midterm Exam | Verified with 100% Correct Answers
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Course
CSI 3460
Institution
CSI 3460
CSI 3460 Midterm Exam | Verified with 100% Correct Answers Accurate, relevant, and timely information is the key to ____. Good decision making A data warehouse contains historical data obtained from the _____. operational Database A desktop database is a _____ database. single-user A _____ is a ...
Accurate, relevant, and timely information is the key to ____.
Good decision making
A data warehouse contains historical data obtained from the _____.
operational Database
A desktop database is a _____ database.
single-user
A _____ is a character or group of characters that has a specific meaning.
Field
A _____ is a collection of related records.
File
Laurel is designing databases and begins with an abstract view of the overall data
environment. As the design comes closer to implementation, where should Laurel place
her focus?
Details
Ali needs to review the metadata of a file system. Where should they look?
name node
An internal _____ refers to a specific representation of an internal model, using the
database constructs supported by the chosen database.
Schema
A(n) _____ is the equivalent of a field in a file system.
Attribute
_____ are important because they help to ensure data integrity.
Constraints
Data anomaly is defined as the condition in which all of the data in the database are
consistent with the real-world events and conditions.
False
Database programming languages receive all application requests and translate them
into the complex operations required to fulfill those requests.
False
, Data constitute the building blocks of information.
True
Data is the result of processing raw facts to reveal its meaning.
False
Data processing can be as simple as organizing data to reveal patterns.
True
You are designing a conceptual model and are in the process of matching the DBMS
requirements to the entity-relationship diagram (ERD) to create a data model that is
software-independent. Which stage of the design phase are you doing?
Logical design
Your manager has requested a report that gives them a global view of the entire
database being used as the basis for the identification and high-level description of
main data objects without model-specific details. Which model or schema would you
provide them?
Conceptual
A disadvantage of the relational database management system (RDBMS) is its inability
to hide the complexities of the relational model from the user.
False
An implementation-ready data model needn't necessarily contain enforceable rules to
guarantee the integrity of the data.
False
Elizabeth is utilizing object-oriented modeling (OOM) when collecting data about
animals. She needs to define entity templates and their associated instances and
subclasses. What method should she incorporate?
False, Object-oriented
Even when a good database blueprint is available, an application's programmer's view
of the data should match that of the manager and the end user.
False
When adding new tables and deciding names for the attributes, which of the following
should be avoided to lessen confusion?
Homonyms
Which of the following is a reason to use indices in a database?
Retrieve data ordered by a specific attribute
Which of the following options is more adequate for a primary key in a table of
employees?
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