Chapter 3 - 11th - Data Communications Multiple Questions and Answers.




26.code systems can represent up to 65536 symbols choose which one is correct?
A. ASCII-7
B. EBCDIC
C. ASCII-8
D. Unicode

27.coding schemes uses 16-bit code to represent a symbol?
A. BCD
B. EBCDIC
C. ASCII
D. Unicode

28.BCD stands for choose which one is correct?
A. Bit Coded Digit
B. Byte Coded Decimal
C. Binary Coded Decimal
D. None

29.How many types of data transmission modes?
A. 2
B. 3
C. 4
D. 5

30.In — – communication modes the data communication can take place in only one direction?
A. Simplex
B. Half-duplex
C. Full-duplex
D. None

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