A. digital modulation
B. amplitude modulation
C. frequency modulation
D. phase modulation
Related Mcqs:
- In analog computer_______________________?
A. Input is never converted to digital form
B. Input is first converted to digital form
C. Output is displayed in digital form
D. All of the above - The original ASCII code used ___________________ bits of each byte, reserving that last bit for error checking ?
A. 4
B. 5
C. 7
D. 9 - When 2 or more bits in a data unit has been changed during the transmission, the error is called___________________?
A. random error
B. burst error
C. inverted error
D. none of these - The domain name system is maintained by___________________?
A. distributed database system
B. a single server
C. a single computer
D. none of these - Instructions and memory addresses are represented by___________________?
A. binary word
B. parity bit
C. binary codes
D. character codes - In the network HTTP resources are located by___________________?
A. uniform resource identifier
B. unique resource locator
C. unique resource identifier
D. none of the above - Which transmission media has the highest transmission speed in a network ?
A. coaxial cable
B. twisted pair cable
C. optical fiber
D. electrical cable - The portion of physical layer that interfaces with the media access control sublayer is called_____________________?
A. physical signalling sublayer
B. physical data sublayer
C. physical address sublayer
D. none of these - All of the following storage media have read and write capabilities except _____________________?
A. Flash memory cards
B. CD-ROMs
C. Hard disk drives
D. Floppy disks - Which of the following are advantages of CD-ROM as a storage media ?
A. CD-ROM is an inexpensive way to store large amount of data and information
B. CD-ROM disks retrieve data and information more quickly than magnetic disks do
C. CD-ROMs make less errors than magnetic media
D. All of these
