Answer:
False
Database management systems are expected to handle binary, unary and ternary relationships.
Explanation:
Unary Relationship: It is a recursive relationship which includes one entity in a relationship which means that there is a relationship between the instances of the same entity. Primary key and foreign key are both the same here. For example a Person is married to only one Person. In this example there is a one-to-one relationship between the same entity i.e. Person.
Binary Relationships: It is a relationship involving two different entities. These two entities identified using two relations and another relation to show relationship between two entities and this relation holds primary keys of both entities and its own primary key is the combination of primary keys of the both relations of the two entities. For example Many Students can read a Book and many Books can be obtained by a Student.
Ternary Relationships: is a relationship involving three entities and can have three tables. For example a Supplier can supply a specific Part of many Mobiles. Or many Suppliers may supply several Parts of many Mobile models.
Answer: Scope creep
Explanation:
Scope creep in the project management basically refers to the uncontrolled development or growth in the project creep. It basically occur when the project scope are not appropriately defined.
It usually involve lack of change in the control system and increase the complexity of the project. It is also has poor requirement analysis.
So, that is why it is the biggest problem we usually face in the project management.
Answer:
c)both a and b
Explanation:
If the tires are under inflated the the rolling resistance increases due to more surface are of tire now touches the ground hence there is more friction.Since the rolling resistance increases the tire will face difficulty in turning hence the steering the tires will become more hard.Since rolling resistance is increased so the engine has to work more to run the car hence it will consume more fuel.
The computer that provides information or resources to the client computers on the network is called a server.