Exam (elaborations)
WGU C175 OBJECTIVE ASSESSMENT PRACTICE TEST ANSWERS| IT CIS111 TEST BANK 1
- Course
- WGU C175
- Institution
- Florida Technical College
WGU C175 OBJECTIVE ASSESSMENT PRACTICE TEST ANSWERS| IT CIS111 TEST BANK 1
[Show more]
Seller
Follow
Content preview
Data Management Foundation C175 WGU1.An associative entity is an element of the entity-relationship model. All
relationships for the associative entity should be many.: Associative Entity
2.An attribute is a property or characteristic of an entity.: Attribute
3.A binary relationship is a relationship between two entity types.: Binary
relationship
4.Is any column or a combination of columns that can qualify as unique key in
database.: Candidate Key
5.Cardinality represents the maximum number of entities that can be involved in a
particular relationship.: Cardinality
6.Usually the result of a missing join condition or a method of expanding the data of
1 table by the number of rows in the second table.: Cartesian product
7.Will delete all records that reference the primary key: Cascade Delete
8.Returns a single column of one or more values.: column subquery
9.When data is encrypted, 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 encryption
10.Is a methodology for organizing attributes into tables so that redundancy among
the non-key attributes is eliminated.: Data normalization
11.Describes how often stored data is updated.: Data volatility
12.Understanding of how much data will be in a database or a table within a
database: Data Volume Assessment
13.A database is a collection of information that is organized so that it can easily
be accessed, managed, and updated.: Database
14.Data control language is used to control access to data stored in a data- base.:
DCL
15.Data definition language - involves instructing the DBMS software on what tables
will be in the database, what attributes will be in the tables, which attributes will be
indexed, and so forth.: DDL
16.Definer is a MySQL term where AuthID is the same for another DBMS: De- finer
17.The act of duplicating data in a database for performance or the preserva- tion of
historical information: Denormalization
18.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.: disaster recovery
19.Data manipulation language refers to the four basic operations that can and
must be performed on data stored in any DBMS: data retrieval, data update,
insertion of new records, and deletion of existing records.: DML
1/
5
, Data Management Foundation C175 WGU
20.An E-R model is a data model for describing a database in an abstract way.:
E-R model
21.The SELECT command is embedded within the lines of a higher-level
language program and functions as an input or "read" statement for the
program.: embedded mode
22.An entity is an object or event in our environment that we want to keep track
of.: Entity
23.Is a field (or collection of fields) in one table that uniquely identifies a row of
another table.: Foreign Key
24.Used to help a DBMS find data quickly: Index
25.Shows row that have matches in both tables: Inner Join
26.Intersection Data associated with the concatenation of two segments.: In-
tersection Data
27.Joins 2 tables together: Join
28.Is a mapping onto a physical table or tables that allows an end user to access
only a specified portion of data.: logical view
29.Modality represents the minimum number of entity occurrences that can be
involved in a relationship.: Modality
30.Shows rows in one table that have no match in the other table. Two kinds of
outer joins are left and right joins.: outer join
31.Uniquely identifies each record in the table.: Primary Key
32.The command goes directly to the relational DBMS, which evaluates the query
and processes it against the database.: query mode
33.Referential integrity is a database concept that ensures that relationships between
tables remain consistent.: Referential Integrity
34.Enforces rules to guarantee that the foreign key relationship stays intact with no
mismatches.: referential integrity
35.Is the delay from the time that the Enter Key is pressed to execute a query until
the result appears on screen.: Response time
36.Will not allow deletes if the primary key is referenced: Restrict Delete
37.Returns a single row of one or more values.: row subquery
38.is the most restrictive subquery because it produces only a single value-
: scalar subquery
39.Will set values to null when primary key is deleted: Set-to-Null on Delete
40.Is a comprehensive database management language which incorporates DML
and DDL: SQL
41.One SELECT statement is "nested" within another.: subquery
42.Returns a table of one or more rows of one or more columns.: table sub- query
2/
5
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller sylvianthiwa. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for $2.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
64670 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 15 years now
Recently viewed by you
Package deal ·
RPSGT BUNDLED EXAMS QUESTIONS AND ANSWERS WITH VERIFIED SOLUTIONS
Exam (elaborations) ·
Gas exchange and Oxygenation ATI Questions with Complete Solution1.
Exam (elaborations) ·
HFMA CSBI COMPLETE EXAM WITH ANSWERS & RATIONALES COURSE 1 - 6 2024.
Package deal ·
Alle vakken van 1ste Bachelor Criminologie, Aan Universiteit Gent.
Exam (elaborations) ·
Solutions for Becker's World of the Cell, 10th Edition by Jeff Hardin
Class notes ·
la literatura de la edad media esta situada entre los siglos X i XV
Exam (elaborations) ·
Rasmussen Pathophysiology Final Questions With Complete Solutions Rated A+
Exam (elaborations) ·
Seidel's Guide to Physical Examination 9th Edition Test Bank most reviewed
