When records are given a new value, it is called
updation
insertion
deletion
retrieval
Correct answer is A
When records are given a new value, it is called 'updation'. This is a process in database management where an existing record is modified with new data. 'Insertion' is adding a new record, 'deletion' is removing a record, and 'retrieval' is fetching data from the database
Which of the following is used for modulation and demodulation ?
Gateway
Protocol
Modem
Multiplex
Correct answer is C
A modem(modulator-demodulator) is a hardware device that connects a computer or router to a broadband network
Modem computers Compared to earlier computers are ?
less reliable
faster and larger
larger and stronger
faster and smaller
Correct answer is D
No explanation has been provided for this answer.
One-millionth of a second is also referred to as
nanosecond
microsecond
millisecond
picosecond
Correct answer is B
No explanation has been provided for this answer.
Which of the following is not a type of computer on the basis of operation?
Remote
Hybrid
Analog
Digital
Correct answer is A
Every other option but option A, is a type of computer based on the basis of operation