Answer:
A: used by ISP's to filter out email SPAM
C: a way to help an individual focus on best choices when deciding what to watch or buy.
Explanation:
Collaborative filtering uses a community-based approach to filter spam. It works by collecting numerous email users from around the world. By doing this, it becomes possible for users to flag emails that are spam and those that are legitimate.
Also Collaborative Filtering is one of the most efficient techniques for building a system that can help a user when it comes to recommending best choices based on information from a large number of users.
Answer:
nothing
Explanation:
Because the return type of the function is void. void means does not return any thing.
The syntax of the function:
type name( argument_1, argument_2,......)
{
statement;
}
in the declaration the type define the return type of the function.
it can be int, float, double, char, void etc.
For example:
int count( int index);
the return type of above function is int. So, it return integer.
similarly,
void count(int index);
it return type is void. So, it does not return any thing.
Answer: Cell site / Base station
Explanation:
A mobile network also referred to as the cellular network is refered to as the radio network which is distributed over the land areas which are refered to as the cells.
We should note that each is served by at least one fixed-location transceiver, which is called the cell site or the base station.
Answer:
Explanation:
Gas Filling Station has pumps. Pumps have credit card readers. Driver can able to swipe their cards, pumps have Fuel. Pumps card readers communicate with Credit Company. Driver interacts with pump for fuel and credit card.
In this situation the following we need to treat as objects.
They are Pump, Card reader, Fuel tank, communication system, system controller and price table.
Design pattern for the following system is attached below
