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3RD SEMSTER FINALTERM EXAMINATION
Fall 2009
CS501- Advance Computer Architecture

Time: 120 min
Marks: 75

Question No: 1 ( Marks: 1 ) - Please choose one



The CPU includes three types of instructions, which have different operands and will need different representations.
Which one of the instructions requires two source registers?


► Jump and branch format instructions


► Immediate format instructions


► Register format instructions


► All of the above





Question No: 2 ( Marks: 1 ) - Please choose one




In this figure, the constant value specified by the immediate field is added to the register value, and the resultant is the index of memory location that is referred i.e. Effective Address = A + (content of R) .
Identify the addressing mode.


► Displacement


► Immediate


► Indexed


► Relative




Question No: 3 ( Marks: 1 ) - Please choose one


In which one of the following addressing modes, the operand does not specify an address but it is the actual data to be used.


► Direct


► Indirect


► Immediate


► Relative




Question No: 4 ( Marks: 1 ) - Please choose one


Identify the opcode, destination register (DR), source registers (SA and SB i/e source register A and source register B) from the following example.
ADD R1, R2, R3


► Opcode= R1, DR=ADD, SA=R2, SB=R3


► Opcode= ADD, DR=R1, SA=R2, SB=R3


► Opcode= R2, DR=ADD, SA=R1, SB=R3


► Opcode= ADD, DR=R3, SA=R2, SB=R1




Question No: 5 ( Marks: 1 ) - Please choose one


When the address of the subroutine is already known to the Microprocessor then it is called as --------- interrupt.


► Maskable


► Non-maskable


► Non-vectored


► Vectored




Question No: 6 ( Marks: 1 ) - Please choose one


The interrupts which are pre-programmed and the processor automatically finds the address of the ISR using interrupt vector table are


► Maskable


► Non-maskable


► Non-vectored


► Vectored




Question No: 7 ( Marks: 1 ) - Please choose one


Which is the last instruction of the ISR that is to be executed when the ISR terminates?


► IRET


► IRQ


► INT


► NMI




Question No: 8 ( Marks: 1 ) - Please choose one


When is the “Divide error interrupt” generated?


► When an attempt is made to divide by decimal number


► When an attempt is made to multiply by zero


► When an attempt is made to divide by zero


► When negative number is stored in a register




Question No: 9 ( Marks: 1 ) - Please choose one


Identify the following type of serial communication error condition:
“The prior character that was received was not still read by the CPU and is over written by a new received character.”


► Framing error


► Parity error


► Overrun error


► Under-run error




Question No: 10 ( Marks: 1 ) - Please choose one



Which one of the following is a term used to describe a storage systems' resilience to disk failure through the use of multiple disks and by the use of data distribution and correction techniques?


► Interrupt handling


► Programmed I/O


► Polling


► RAID




Question No: 11 ( Marks: 1 ) - Please choose one


___________ is the time for first bit of the message to arrive at the receiver including delays.


► Transmission Time


► Latency


► Transport Latency


► Time of Flight




Question No: 12 ( Marks: 1 ) - Please choose one


For a request of data if the requested data is not present in the cache, it is called a _____


► Cache Miss


► Spatial Locality


► Temporal Locality


► Cache Hit




Question No: 13 ( Marks: 1 ) - Please choose one


An entire _____ memory can be erased in one or a few seconds which is much faster than EPROM.


► PROM


► Cache


► EEPROM


► Flash Memory




Question No: 14 ( Marks: 1 ) - Please choose one


A combination of parallel and sequential hardware used to build a multiplier is known as _______


► Parallel Array Multiplier


► Booth Recording


► Series Parallel Multiplier


► None of the given




Question No: 15 ( Marks: 1 ) - Please choose one


The _________ of an m digit number x is xc’=bm -1- x


► Radix Compliment


► Diminished Radix Compliment


► Signed Magnitude Form


► Biased Representation




Question No: 16 ( Marks: 1 ) - Please choose one


Along with information bits we add up another bit which is called the bit.


► CRC


► Hamming


► Error Detection


► Parity




Question No: 17 ( Marks: 1 ) - Please choose one


Falcon-A Simulator loads a FALCON-A binary file with a ________ extension and presents its contents into different areas of the simulator.


► .bin


► .binfa


► .fa


► None of the given