COMPUTER SYSTEM ARCHITECTURE MCQS PART 30

COMPUTER SYSTEM ARCHITECTURE MCQS PART 30

1. Which code used to represent numbers, letters, punctuation marks as well as control characters:
a. ASCII      
b. EBCDIC  
c. Both              
d. None of these
Answer A

2. abbreviation EBCDIC stand for:
a. Extended binary coded decimal interchange code
b. External binary coded decimal interchange code
c. Extra binary coded decimal interchange code
d. None of these
Answer A

3. How many bit of EBCDIC code:
a. 7             
b. 8               
c. 5                
d. 9
Answer B

4. Which code the decimal digits are represented by the 8421 BCD code preceded by 1111:
a. ASCII            
b. EBCDIC   
c. Both   
d. None of these
Answer  B
5. _________ has the property that corrupting or garbling a code word will likely produce a bit string that is not a code word:
a. Error deleting codes   
b. Error detecting codes
c. Error string codes         
d. None of these
Answer B

6. Which is method used most simple and commonly:
a. Parity check method  
b. Error detecting method 
c. Both   
d. None of these
Answer  A

7. Which is the method of parity:
a. Even parity method  
b. Odd parity method
c. Both
d. None of these
Answer C

8. The ability of a code to detect single errors can be stated in term of the _________:
a. Concept of distance  
b. Even parity  
c. Odd parity  
d. None of these
Answer A

9. The first n bit of a code word called__________ may be any of the 2n n- bit string minimum error bit:
a. Information bits       
b. String bits      
c. Error bits       
d. All of these
Answer A
10. A code in which the total number of 1s in a valid (n+1) bit code word is even, this is called an__________:
a. Even parity code   
b. Odd parity code  
c. Both  
d. None of these
Answer A