CS609 Midterm Solved MCQs with References by Education Gator

MIDTERM EXAMINATION Spring 2012

Q1. DMA stands for_________

1. Direct Memory Access (Page 4)
2. Distinct Memory Access
3. Direct Module Access
4. Direct Memory Allocation

Correct answer: Direct Memory Access (Page 4)

Q2. Standard PC operates in two modes in terms of memory which are

1. Real mode and Extended Mode
2. Base mode and Memory Mode
3. None of the given
4. Real mode and protected mode (Page 6)

Correct answer: Real mode and protected mode (Page 6)

Q3. UART stands for_______

1. Universal Asynchronous Receiver Transmitter (Page 107)
2. Universal Adjustment and Realigning Tool
3. Unconventional Assisted Recovery Team
4. None of these

Q4. Usually interrupt procedures are reentrant procedures especially those interrupt procedure compiled using C language compiler are reentrant.

1. True (Page 38)

Q5. DTE is ____________.

1. Data terminal equipment (Page 109)
2. Data transmitting equipment
3. Dual terminal equipment
4. None of the given.

Correct answer: Data terminal equipment (Page 109)

Q6. Interrupt Vector Table (IVT) in short is a _______ bytes sized table.

1. 1024 (Page 10)
2. 2048
3. 3072
4. 4096

Correct answer: 1024 (Page 10)

Q7. Hardware Interrupts are __________.

1. Preemptive
2. Non-Preemptive (Page 48)
3. Both Preemptive and Non-Preemptive
4. None of Given

Correct answer: Non-Preemptive (Page 48)

Q8. Please choose one Timer (1 marks)

interrupt is a _________.

1. Hardware Interrupt (Page 28)
2. Software Interrupt
3. Both of these
4. None of These

Correct answer: Hardware Interrupt (Page 28)

Q9. Int 14H __________ can be used to set the line parameter of the UART or COM port.

Q10. ( Marks: 1 ) -

The keyboard makes use of interrupt number _______ for its input operations.

1. 9 (Page 34)
2. 10
3. 11
4. 12

Correct answer: 9 (Page 34)

Q11. In self test mode the output of the UART is routed to its input.

1. True (Page 117)
2. False

Correct answer: True (Page 117)

Q12. In case of synchronous communication a timing signal is required to identify the start and end of a bit.

1. True (Page 105)
2. False

Correct answer: True (Page 105)

Q13. Please choose one Register can (1 marks)

be used to divide frequency is _________

1. Counter Register (Page 69)
2. Accumulator Register
3. None of these

Correct answer: Counter Register (Page 69)

Q14. Only ________ ports are important from programming point of view.

1. 70 and 71H (Page 141)
2. 71 and 72H
3. 70 and 72H
4. 72 and 73H

Correct answer: 70 and 71H (Page 141)