IT 105 GMU MIDTERM QUESTIONS AND VERIFIED ANSWERS..

7. Which component of the CPU is responsible for arithmetic and logical operations?
a. Control unit
b. ALU
c. Cache memory
d. Both and b
e. All of the above


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b. ALU




6. Which of the following is classified as volatile memory?
a. RAM
b. ROM
c. All of the above
d. None of the above

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a. RAM




What is the decimal representation of hexadecimal FF(base 16)?


a. 128
b. 256
c. 64
d. 255


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d. 255




1.Using the opcode table below, What is the binary machine language instruction for
Multiply?
a. 1111 0100
b. 0110 0011
c. 1111 0110
d. 0010 1100


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c. 1111 0110




Gigabyte is:


a. 210 bytes

, b. 220 bytes
c. 230 bytes d. 215 bytes


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c. 230 bytes




16. What are CPU cycles during instruction processing? List in the correct order.
a. Fetch, decode, execute, write-back
b. Decode, fetch, write-back, execute
c. Execute, fetch, decode, write-back
d. Wrote-back, fetch, execute, decode


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a. Fetch, decode, execute, write-back




______________is common in programming languages
A. Octal
B. Hexadecimal
C. Python
D. All of the above


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B. Hexadecimal




8. Which component of the CPU is used to store frequently used instructions and
data?