Answer:
following are the OSI Layers
1.physical layer
2.datalink layer
3.network layer
4.transport layer
5.session layer
6.presentation layer
7.application layer
Explanation:
physical layer is used to transmit media,signal and binary information
datalink layer is used for physical addressing MAC and LLC
network layer is used for path determination and ip
transport layer is for end to end communication and reliability
session layer is for interhost communication
presentation layer is for data representation and encryption
application layer is network process to application
Answer:
Select title, description , first_name, last_name from film inner join film_actor on film.film_id = film_actor.film_id inner join actor on film_actor.actor_id = actor.actor_id where title LIKE 'zo%';
Explanation:
- The INNER JOIN keyword selects records that have matching values in both tables.
- The WHERE clause is used to filter records.
- The WHERE clause is used to extract only those records that fulfill a specified condition.
Answer:
Reference
Explanation:
Variables provide reference to the stored data value.
For example:
int i = 0;
Here i is a variable of type int with an initial value of 0. i is a reference to this stored value 0. Now if I want to update the data, I can do so using this reference.
i = 1;
Now the reference is used to manipulate the stored data and change it to 1. In a similar manner all updates to the value can be done using the variable reference.
Answer:
Scratch is the a coding community and a coding language with simple visual interface that allows people to create digital stories, games and animeations ect.
Explanation: Migth be able to help depending on waht you are making
