1. (TCO 1) Most DBMS are referred to as _____ database management systems. (Poin
ID: 3570780 • Letter: 1
Question
1. (TCO 1) Most DBMS are referred to as _____ database management systems. (Points : 4) elementallinked
hierarchical
relational Question 2.2. (TCO 1) A Batch Update Routine pools the transactions into a single batch to update a master table field in a(n) _____ operation. (Points : 4) single
user
modern
automatic Question 3.3. (TCO 2) In a relational database, each table must have _____ (Points : 4) a primary key.
a secondary key.
a foreign key.
a logical key. Question 4.4. (TCO 2) A _____ key is a key that is composed of more than one attribute. (Points : 4) primary
foreign
composite
domain Question 5.5. (TCO 3) Composite primary keys are particularly useful as identifiers of composite entities, where each primary key combination is allowed only once in the _____ relationship. (Points : 4) null
1:1
1:M
M:N Question 6.6. (TCO 3) All of the following are true about a prime attribute except _____ (Points : 4) it is a key attribute.
it is at least part of a key.
it is not a key attribute.
it may be part of a composite key. Question 7.7. (TCO 3) The conflicts between design efficiency, information requirements, and processing speed are often resolved through _____ (Points : 4) conversion from 1NF to 2NF.
conversion from 2NF to 3NF.
compromises that include denormalization.
conversion from 3NF to 4NF. Question 8.8. (TCO 4) Which of the following SQL statements would select data from all of the rows and columns in the DEVRY table? (Points : 4) SELECT all FROM devry;
SELECT * FROM devry;
SELECT devry;
SHOW * FROM devry; Question 1.1. (TCO 4) In Oracle, the CONSTRAINT clause is used to _____ (Points : 4) create only referential constraints.
define and name any constraint.
create a short cut so the constraint does not have to be named.
create only entity integrity constraints. Question 2.2. (TCO 4) Which command is used to restore the table's contents to their default values? (Points : 4) COMMIT; RESTORE;
COMMIT; BACKUP;
COMMIT; ROLLBACK;
ROLLBACK; Question 3.3. (TCO 5) The Crow's Foot model is more _____-oriented than the Chen model. (Points : 4) object
user
implementation
processor Question 4.4. (TCO 5) Knowing the _____ number of entity occurrences is very helpful at the application software level. (Points : 4) maximum
minimum
exact
maximum and minimum Question 5.5. (TCO 6) The _____ statement can be used to enable or disable a constraint. (Points : 4) alter table
modify table
create table
update table 1. (TCO 1) Most DBMS are referred to as _____ database management systems. (Points : 4) elemental
linked
hierarchical
relational
Explanation / Answer
SELECT * FROM devry;
relational
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