$1.$ In the context of the database design process, the conceptual design step that determines end$-$user

views, outputs, and transaction$-$processing requirements is $\_\_\_\_\_.$

a$)$ data analysis and requirements

b$)$ entity relationship modeling and normalization

c$)$ data model verification

d$)$ distributed database design

$2.$ The maintenance and evolution phase of the Database Life Cycle $($DBLC$)$ involves $\_\_\_\_\_.$

a$)$ Defining objectives

b$)$ introducing changes

c$)$ testing the database

d$)$ installing the DBMS

$3.$ At the implementation level, the supertype and its subtype$($s$)$ depicted in a specialization hierarchy

maintain a$($n$)\_\_\_\_\_$ relationship.

a$)$ self$-$referencing

b$)1$:$1$

c$)1$:M

d$)$ M:N

$4.$ A table that has all key attributes defined, has no repeating groups, and all its attributes are

dependent on the primary key is said to be in $\_\_\_\_\_.$

a$)1$NF

b$)2$NF

c$)3$NF

d$)4$NF