CS501 Quiz 3

Q1. Every time you press a key, an interrupt is generated.

This is an example of

A. Hardware interrupt

B. None of the given C. All of the given D. Software interrupt

Q2. A software routine performed when an interrupt is received by the computer is called as ---------

1. Exception
2. Interrupt handler
3. Interrupt
4. Trap

Correct answer: Interrupt handler

Q3. The Pentium does allow the use of some part of its _____ accumulator register EAX

1. 16 bits
2. 32 bits
3. 8 bits
4. 64 bits

Correct answer: 16 bits

Q4. the device usually means reading its status register every so often until the device's status changes to indicate that it has completed the request.

1. Masking
2. Executing
3. Polling
4. Interrupting

Correct answer: Polling

Q5. _____ form the branch control field in the micro instruction.

1. B Bits
2. A Bits
3. M Bits
4. C Bits

Correct answer: B Bits

Q6. Which of the following control signals is NOT activated during instruction fetch operation?

1. Cout
2. PCout
3. LMAR
4. LC

Correct answer: Cout

Q7. The directive ____________ is used to define variables.

1. .org
2. .equ
3. .sw
4. .db

Correct answer: .db

Q8. The source file of FALSIM should contain ____________ text only.

1. ASCII
2. Unicode
3. ANSI
4. UTF

Correct answer: ASCII

Q9. Connection to a CPU that provides a data path between the CPU and external devices, such as a keyboard, display, or reader is called-----------

1. I/O port
2. Processor
3. Memory mapping
4. Buffer

Correct answer: I/O port

Q10. What is the status of the ACKNLG# signal when a character is completely received by the printer?

1. It goes from high to low
2. It remains unaffected
3. It toggles its state
4. It goes from low to high

Correct answer: It goes from low to high