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WGU C170 Terms QUESTIONS AND ANSWERS

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Associative Entity - All relationships for the (...) entity should be many. Attribute - An (...) is a property or characteristic of an entity. Binary relationship - A (...) is a relationship between two entity types. Cardinality - (...) represents the maximum number of entities that can be invol...

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  • December 1, 2023
  • 7
  • 2023/2024
  • Exam (elaborations)
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WGU C170 Terms QUESTIONS AND
ANSWERS

Associative Entity - ✔✔All relationships for the (...) entity should be many.



Attribute - ✔✔An (...) is a property or characteristic of an entity.



Binary relationship - ✔✔A (...) is a relationship between two entity types.



Cardinality - ✔✔(...) represents the maximum number of entities that can be involved in a particular
relationship.



Cascade Delete - ✔✔Will delete all records that reference the primary key



Database - ✔✔A (...) is a collection of information that is organized so that it can easily be accessed,
managed, and updated.



E-R model - ✔✔An (...) is a data model for describing a database in an abstract way.



Entity - ✔✔An (...) is an object or event in our environment that we want to keep track of.



Intersection Data - ✔✔Associated with the concatenation of two segments



Modality - ✔✔(...) represents the minimum number of entity occurrences that can be involved in a
relationship.



Ternary Relationship - ✔✔A (...) relationship is when three entities participate in the relationship.



Unary Relationships - ✔✔(...) relationships associate occurrences of an entity type with other
occurrences of the same entity type.

, Unique Identifier - ✔✔A (...) is any identifier which is guaranteed to be unique among all identifiers
used for those objects and for a specific purpose.



Data encryption - ✔✔When data is (...), it is changed, bit by bit or character by character, into a form
that looks totally garbled. It can and must be reconverted, or decrypted, back to its original form to
be of use.



Data normalization - ✔✔Is a methodology for organizing attributes into tables so that redundancy
among the non-key attributes is eliminated.



Data volatility - ✔✔Describes how often stored data is updated.



Data Volume Assessment - ✔✔Understanding of how much data will be in a database or a table
within a database



Denormalization - ✔✔The act of duplicating data in a database for performance or the preservation
of historical information



Disaster recovery - ✔✔Involves rebuilding an entire information system or significant parts of one
after a catastrophic natural disaster such as a hurricane, tornado, earthquake, building collapse, or
even a major fire



Index - ✔✔Used to help a DBMS find data quickly



Logical view - ✔✔Is a mapping onto a physical table or tables that allows an end user to access only a
specified portion of data.



Response time - ✔✔Is the delay from the time that the Enter Key is pressed to execute a query until
the result appears on screen.



Throughput - ✔✔Is the measure of how many queries from simultaneous users must be satisfied in a
given period of time by the application set and the database that it supports.

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