Multiple choice urgent:

QUESTION 1

1. If 1000 0000 is a binary number in excess-127 form, what is the decimal number?

   	a.	1
   	b.	255
   	c.	127
   	d.	128

QUESTION 2

1. What is Binary equivalent to (53.25)₁₀?

   	a.	10111.01
   	b.	10111.11
   	c.	110101.01
   	d.	110101.11

1 points

QUESTION 3

1. In J-K flip-flop, if J=1 and K=1 then the operation will be _____________.

   	a.	Reset.
   	b.	Toggle.
   	c.	Memory.
   	d.	Set.

1 points

QUESTION 4

1. The basic gate whose output is the complement of the input is the ____________.

   	a.	AND gate.
   	b.	NOR gate.
   	c.	OR gate.
   	d.	NOT gate.

1 points

QUESTION 5

1. Which of the following is the fastest memory.

   	a.	Magnetic disk
   	b.	Cache
   	c.	Register
   	d.	RAM

1 points

QUESTION 6

1. Which of the following records data in serial fashion?

   	a.	Compact Disk.
   	b.	Random Access Memory
   	c.	Digital Versatile Disk.
   	d.	Magnetic Tape.

1 points

QUESTION 7

1. Which of the following cache replacement algorithm that replaces the block in the set that has experienced the fewest references?

   	a.	LIFO
   	b.	FIFO
   	c.	LRU
   	d.	LFU

1 points

QUESTION 8

1. Keyboards and printers are examples of ____________ external devices.

   	a.	communication
   	b.	control
   	c.	human readable
   	d.	machine readable

1 points

QUESTION 9

1. In ____________ technique, when the processor issues a command to the I/O module, it must wait until the I/O operation is complete.

   	a.	Interrupt-driven I/O
   	b.	Direct memory access (DMA)
   	c.	Programmed I/O
   	d.	Random memory access

1 points

QUESTION 10

1. Which of the following is NOT true about the Assembly language?

   	a.	Assembly language is more difficult for humans than machine language.
   	b.	A program called an assembler translates assembly language into machine language.
   	c.	The design of the processor must be known.
   	d.	Mnemonics are used for the instructions.

1 points

QUESTION 11

1. In ____________, the operand is provided as part of the instruction.

   	a.	Immediate Addressing
   	b.	Direct Addressing
   	c.	Stack Addressing
   	d.	Register Addressing

1 points

QUESTION 12

1. Which of the following Assembly instructions copy the content of the accumulator to an I/O port?

   	a.	STA
   	b.	LDA
   	c.	LXI
   	d.	OUT

1 points

QUESTION 13

1. Which of the following Assembly language instructions decrements the content of register B by 1?

   	a.	DEC B
   	b.	DR B
   	c.	DCR B
   	d.	DEX B

1 points

QUESTION 14

1. _______________ is a processor with a shared L3 cache.

   	a.	Intel Core Duo
   	b.	ARM11 MPCore
   	c.	AMD Opteron
   	d.	Intel Core i7