please answer very urgent

1. A layer that connects to database, access the database with SQL or equivalent, process data returned from data base and write to database, disconnect from database.

a.

Logic Layer

b.

View Layer

c.

Domain Layer

d.

Data Layer

2. Which one is NOT a technique for identifying requirements in the problem domain?

a.

Noun technique

b.

Event Decomposition technique

c.

CRUD technique

d.

User Goal technique

3. The requirements that describe the business rules that must be supported by the new system

a.

Usability

b.

Functional Requirements

c.

Non-Functional Requirements

d.

Security

4. Agile development is one methodology that supports _______ development.

a.

Many to Many

b.

One to One

c.

Many to One

d.

One to Many