21...............................
No, you would see arrows pointing in opposite directions <--> like so
Answer: Fourth- generation language
Explanation:Structured Query Language (SQL) is the language that is in the form of database structure which helps in the manipulation of the data and management as well.
SQL is considered as the fourth generation language because it is used for the accessing of the data from the database.It is also known for the advancement in the third generation language and thus also improving the language interface with users.
<u>The most important job duty of a software developer is to develop a product/program that is easy to use and melts a customer’s need.</u>
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Explanation:
Some other duties of a Software developer are
- Researching,designing and implementing new software program's and then managing them
- Testing and evaluating the developed software program's
- Identifying errors in the existing program's and modifying the same
- Writing effective codes
- employing various software tools
- Training new users
- Working closely with the other developers
Answer:
TCP
Explanation:
Transmission control protocol ensures packets loss and performs retransmission
TCP works with Internet Protocol (IP)
TCP/IP defines how computers send data packets to each other.
TCP allows transmission of information in both the direction.
Bit rate :defines the rate at which bits are transferred from one place to another
