# IIT JEE/Programming Computer Architecture Sample Test,Sample questions

## Question: `#2?s complement of -13 = 11110011 Add the two numbers in their 2?s complement form including their sign bits and discard any carry out of the sign (leftmost) bit position. So the answer is 11101101 (-19). -6 11111010 -13 11110011 ---------------------- -19 11101101 #6. Which one of the following CPU registers holds the address of the instructions (instructions in the program stored in memory) to be executed next?IR (Instruction Register)`

2.MBR (Memory Buffer Register)

3.AC (Accumulator)

4.PC (Program Counter)

Posted Date:-2021-10-04 18:49:36

## Question: `.Boolean functions expressed as a --------- of minterms or ---------- of maxterms are said to be in a canonical form.`

1.Product Sum

2.Sum Product

3.Subtract Divide

4.Divide Subtract

Posted Date:-2021-10-04 18:49:36

## Question: `.Information transfer from one register to another is designated in symbolic form by means of`

1.Control Function

2.Op Code

3.Registers

4.Replacement Operator

Posted Date:-2021-10-04 18:49:36

## Question: `2?s complement of -13 = 11110011 Add the two numbers in their 2?s complement form including their sign bits and discard any carry out of the sign (leftmost) bit position. So the answer is 11101101 (-19). -6 11111010 -13 11110011 ------------------ -19 11101101 #38. Which one of the following CPU registers holds the address of the instructions (instructions in the program stored in memory) to be executed next?IR (Instruction Register)`

2.MBR (Memory Buffer Register)

3.AC (Accumulator)

4.PC (Program Counter).

Posted Date:-2021-10-04 18:49:36

## Question: `64K memory contains how many words of 8 bits each?`

1.65,536

2.64,536

3.65,436

4.65,546

Posted Date:-2021-10-04 18:49:36

## Question: `A combinational circuit that converts binary information from n input lines to a maximum of unique output lines is`

1.Decoder

2.Encoder

4.None of these

Posted Date:-2021-10-04 18:49:36

## Question: `A full-adder is simply a connection of two half-adders joined by`

1.AND gate

2.OR gate

3.NAND gate

4.NOR gate

Posted Date:-2021-10-04 18:49:36

## Question: `A full-adder is simply a connection of two half-adders joined by a`

1.AND gate

2.OR gate

3.NAND gate

4.NOR gate

Posted Date:-2021-10-04 18:49:36

## Question: `Consider the following logic function f(ABC). f(ABC) = ( A + B + C?) . (A + B?+ C?) Which of the following would be the result if the above logic function is to be simplified using k-maps?`

1.C? + A

2.C + C?A?

3.C.A?

4.C?.A

Posted Date:-2021-10-04 18:49:36

## Question: `Convert decimal value (888)10 to base-5.(444)5`

1.(444)5

2.(12023)5

3.(131313)5

4.(12021)5

Posted Date:-2021-10-04 18:49:36

## Question: `Given the characteristic table of a JK flip-flop find the missing output value. J K Q(t+1) 0 0 Q(t) 0 1 0 #1 0 1 #1 1 ---`

1.Q(t)

2.Q?(t+1)

3.1

4.Q?(t)

Posted Date:-2021-10-04 18:49:36

## Question: `Given the characteristic table of a JK flip-flop find the missing output value. J K Q(t+1) 0 0 Q(t) 0 1 0 #1 0 1 #1 1 ---`

1.Q(t)

2.Q?(t+1)

3.1

4.Q?(t)

Posted Date:-2021-10-04 18:49:36

## Question: `he gray code of a given binary number 1001 is`

1.1110

2.110

3.1101

4.1111

Posted Date:-2021-10-04 18:49:36

## Question: `he registers found in the processor unit are`

1.Operational registers

2.Memory registers

3.Binary registers

4.Storage registers

Posted Date:-2021-10-04 18:49:36

## Question: `In which type of flip-flop the indeterminate condition of the SR flip-flop (when S=R=1) is eliminated?`

1.Edge-triggered flip-flop

2.JK flip-flop

3.D flip-flop

4.T flip-flop

Posted Date:-2021-10-04 18:49:36

## Question: `In which type of flip-flop the indeterminate condition of the SR flip-flop (when S=R=1) is eliminated?T flip-flop`

1.Edge-triggered flip-flop

2.JK flip-flop

3.D flip-flop

4.T flip-flop

Posted Date:-2021-10-04 18:49:36

## Question: `Information transfer from one register to another is designated in symbolic form by means of a`

1.Control Function

2.Op Code

3.Registers

4.Replacement Operator

Posted Date:-2021-10-04 18:49:36

## Question: `System Software usually includes a program called a -------- which helps the programmer find errors in a program.`

1.Write Buffer

3.Debugger

4.Both (opt1) and (opt3) above

Posted Date:-2021-10-04 18:49:36

## Question: `Techniques that automatically move program and data blocks into the physical main memory when they are required for execution are called`

1.Associative-Mapping techniques

2.Main Memory techniques

3.Virtual Memory techniques

4.Cache Memory techniques

Posted Date:-2021-10-04 18:49:36

## Question: `Techniques that automatically move program and data blocks into the physical main memory when they are required for execution are calledVirtual Memory techniques`

1.Associative-Mapping techniques

2.Main Memory techniques

3.Virtual Memory techniques

4.Cache Memory techniques

Posted Date:-2021-10-04 18:49:36

## Question: `The bulk of the binary information in a digital computer is stored in memory but all computations are done in`

1.Timing Control

2.Memory Registers

3.Processor Registers

4.Program Control

Posted Date:-2021-10-04 18:49:36

## Question: `The bulk of the binary information in a digital computer is stored in memory but all computations are done in`

1.Timing Control

2.Memory Registers

3.Processor Registers

4.Program Control

Posted Date:-2021-10-04 18:49:36

## Question: `The control condition is terminated with`

1.Comma

2.Semicolon

3.Colon

4.Hash

Posted Date:-2021-10-04 18:49:36

## Question: `The correspondence between the main memory blocks and those in the cache is specified by`

1.Mapping function

2.Replacement algorithm

3.Hit rate

4.Miss penalty

Posted Date:-2021-10-04 18:49:36

## Question: `The correspondence between the main memory blocks and those in the cache is specified by aPage fault`

1.Miss penalty

2.Replacement algorithms

3.Hit rate

4.Mapping functions.

Posted Date:-2021-10-04 18:49:36

## Question: `The CPU nearly delays its operation for one memory cycle to allow direct memory I/O transfer. This process is called`

1.Burst transfer

2.Cycle waiting

3.Cycle stealing

4.Cycle interrupting

Posted Date:-2021-10-04 18:49:36

## Question: `The DMA transfer technique where transfer of one word data at a time is called`

1.Cycle stealing

2.Memory stealing

3.Hand-shaking

4.Inter-leaving

Posted Date:-2021-10-04 18:49:36

## Question: `The number of 256*4 RAM chips required to construct 2KB CACHE is`

1.8

2.2

3.4

4.16

Posted Date:-2021-10-04 18:49:36

## Question: `The one major advantage of CMOS is its #34. The one major advantage of CMOS is itsHigh propagation delay`

1.Low propagation delay

2.High propagation delay

3.Very low propagation delay

4.Very high propagation delay

Posted Date:-2021-10-04 18:49:36

## Question: `The processor ---------- and I/O Devices are interconnected by means of a common bus. #17. The processor ---------- and I/O Devices are interconnected by means of a common bus.Main Memory`

1.Cache Memory

2.Auxiliary Memory

3.Virtual Memory

4.Main Memory

Posted Date:-2021-10-04 18:49:36

## Question: `The processor _________ and I/O Devices are interconnected by means of a common bus. #49. The processor _________ and I/O Devices are interconnected by means of a common bus.`

1.Cache Memory

2.Auxiliary Memory

3.Virtual Memory

4.Main Memory

Posted Date:-2021-10-04 18:49:36

## Question: `The registers found in the processor unit are`

1.Operational registers

2.Memory registers

3.Storage registers

4.Binary registers

Posted Date:-2021-10-04 18:49:36

## Question: `The set of physical addresses is called`

1.Disk Space

3.Pages

4.Frames

Posted Date:-2021-10-04 18:49:36

## Question: `The simplest way to determine cache locations in which to store memory blocks is the`

1.Associative Mapping technique

2.Direct Mapping technique

3.Set-Associative Mapping technique

4.Indirect Mapping technique

Posted Date:-2021-10-04 18:49:36

## Question: `The simplest way to determine cache locations in which to store memory blocks is the`

1.Associative Mapping technique

2.Direct Mapping technique

3.Set-Associative Mapping technique

4.Indirect Mapping technique

Posted Date:-2021-10-04 18:49:36

## Question: `The sum of -6 and -13 using 2?s complement addition is`

1.11100011

2.11110011

3.11001100

4.11101101

Posted Date:-2021-10-04 18:49:36

## Question: `The sum of -6 and -13 using 2?s complement addition is`

1.11100011

2.11110011

3.11001100

4.11101101

Posted Date:-2021-10-04 18:49:36

## Question: `The transfer of new information into the register is called`

1.Execution

3.Shifting

4.Configuring

Posted Date:-2021-10-04 18:49:36

## Question: `To convert octal code to binary code which of the following digital functions should be used?`

1.Decoder

2.Encoder

3.Multiplexer

4.Demultiplexer

Posted Date:-2021-10-04 18:49:36

## Question: `To convert octal code to binary code which of the following digital functions should be used?`

1.Decoder

2.Encoder

3.Multiplexer

4.Demultiplexer

Posted Date:-2021-10-04 18:49:36

## Question: `What are the building blocks of combinational circuits?Registers`

1.Flip-flops

2.Logical gates

3.Latches

4.Full-subtractor

Posted Date:-2021-10-04 18:49:36

## Question: `What are the building blocks of combinational circuits?Registers`

1.Flip-flops

2.Logic gates

3.Latches

4.Registers

Posted Date:-2021-10-04 18:49:36

## Question: `What are the major components of a CPU?`

1.Control Unit Register Set Arithmetic Logic Unit

2.Control Unit Memory Unit Arithmetic Logic Unit

3.Memory Unit Arithmetic Logic Unit Auxiliary Memory

4.Register Set Control Unit Memory Unit

Posted Date:-2021-10-04 18:49:36

## Question: `What are the major components of a CPU?Control Unit Register Set Arithmetic Logic UnitControl Unit Memory Unit Arithmetic Logic Unit`

1.Control Unit Register Set Arithmetic Logic Unit

2.Control Unit Memory Unit Arithmetic Logic Unit

3.Memory Unit Arithmetic Logic Unit Auxiliary Memory

4.Register Set Control Unit Memory Unit

Posted Date:-2021-10-04 18:49:36

## Question: `What are the missing values in the truth table of a half-adder given below? x y C S 0 0 -- -- 0 1 0 1 #1 0 0 1 #1 1 1 0`

1.x

2.y

3.0

4.1

Posted Date:-2021-10-04 18:49:36

## Question: `What does T stands for in T flip-flop?`

1.Top

2.Type

3.Toggle

4.Tickle

Posted Date:-2021-10-04 18:49:36

## Question: `What does T stands for in T flip-flop?`

1.Top

2.Type

3.Toggle

4.Tickle

Posted Date:-2021-10-04 18:49:36

## Question: `What interface is used to connect the processor to I/O devices that require transmission of data one bit at a time?`

1.Parallel

2.Serial

3.Output

4.Input

Posted Date:-2021-10-04 18:49:36

## Question: `What is Q when S = 1 and R = 1 for SR flip-flop?Complement of previous output`

1.No Change

2.Clear to 0

3.Set to 1

4.Indeterminate.

Posted Date:-2021-10-04 18:49:36

## Question: `What is Q when S = 1 and R = 1 for SR flip-flop?Set to 1`

1.No Change

2.Clear to 0

3.Complement of previous output

4.Indeterminate.

Posted Date:-2021-10-04 18:49:36

## Question: `What is the name of device that is allowed to initiate data transfer on the bus?`

1.Bus Master

2.Bus Arbitration

3.Bus Cycle

4.Bus Request

Posted Date:-2021-10-04 18:49:36

## Question: `What is the purpose of RAID system?`

1.It increases the processor speed

2.It increases the disk storage capacity

3.It increases the disk storage capacity and availability

4.It increases operating system efficiency

Posted Date:-2021-10-04 18:49:36

## Question: `Which of the following modes are used to handle data transfer to and from peripherals?`

1.Programmed I/O

2.Programmed I/O

3.Interrupted-initiated I/O

4.Programmed I/O Interrupted-initiated I/O Direct memory access

Posted Date:-2021-10-04 18:49:36

## Question: `Which of the following representation requires the least number of bits to store the number +255?`

1.BCD

2.2?s complement

3.1?s complement

4.Unsigned binary

Posted Date:-2021-10-04 18:49:36

1.Write Buffer