FINALTERM EXAMINATION
Fall 2008
CS501- Advance Computer Architecture (Session - 1)
M a r k s: 75
CS501 Question No: 1
Which one of the following is the memory organization of SRC processor?
- 28 * 8 bits
- 216 * 8 bits
- 232 * 8 bits
- 264 * 8 bits
CS501 Question No: 2
Type A format of SRC uses -----------instructions
- two
- three
- four
- five
CS501 Question No: 3
The instruction ---------------will load
the register R3 with the contents of the memory
location M [PC+56]
- Add R3, 56
- lar R3, 56
- ldr R3, 56
- str R3, 56
CS501 Question No: 4
Which format of the instruction is called the accumulator?
- 3-address instructions
- 3-address instructions
- 2-address instructions
- 1-address instructions
- 0-address instructions
CS501 Question No: 5
Which one of the following are the code size
and the Number of memory
bytes respectively for a 2-address instruction?
- 4 bytes, 7 bytes
- 7 bytes, 16 bytes
- 10 bytes, 19 bytes
- 13 bytes, 22 bytes
CS501 Question No: 6
Which operator is used to name registers, or part of registers, in the Register
Transfer Language?
- :=
- &
- %
- ©
CS501 Question No: 7
The transmission of data in which each character is self-contained units with its
own start and stop bits is -----------
- Asynchronous
- Synchronous
- Parallel
- All of the given options
CS501 Question No: 8
Circuitry that is used to move data is called -------------
- Bus
- Port
- Disk
- Memory
CS501 Question No: 9
Which one of the following is NOT a technique used when the CPU wants to
exchange data with a peripheral device?
- Direct Memory Access (DMA).
- Interrupt driven I/O
- Programmed I/O
- Virtual Memory
CS501 Question No: 10
Every time you press a key, an interrupt is generated.
This is an example of
- Hardware interrupt
- Software interrupt
- Exception
- All of the given
CS501 Question No: 11
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
CS501 Question No: 12
Which is the last instruction of the ISR that is to be executed when the ISR
terminates?
- IRET
- IRQ
- INT
- NMI
CS501 Question No: 13
If NMI and INTR both interrupts occur simultaneously, then which one has the
precedence over the other
- NMI
- INTR
- IRET
- All of the given
CS501 Question No: 14
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
CS501 Question No: 15
----------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.
- Executing
- Interrupting
- Masking
- Polling
CS501 Question No: 16
Which I/O technique will be used by a sound card that may need to access data
stored in the computer's RAM?
- Programmed I/O
- Interrupt driven I/O
- Direct memory access(DMA)
- Polling
CS501 Question No: 17
For increased and better performance we use _____ which are usually made of glass.
- Coaxial Cables
- Twisted Pair Cables
- Fiber Optic Cables
- Shielded Twisted Pair Cables
CS501 Question No: 18
In _____ if we find some call party busy we can have provision of call waiting.
- Delay System
- Loss System
- Single Server Model
- None of the given
CS501 Question No: 19
In ____ technique memory is divided into segments of variable sizes depending upon
the requirements.
- Paging
- Segmentation
- Fragmentation
- None of the given
CS501 Question No: 20
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
CS501 Question No: 21
An entire _____ memory can be erased in one or a few seconds which is much faster
than EPROM.
- PROM
- Cache
- EEPROM
- Flash Memory
CS501 Question No: 22
________chips have quartz windows and by applying ultraviolet light data can be
erased from them.
- PROM
- Flash Memory
- EPROM
- EEPROM
CS501 Question No: 23
The _______signal coming from the CPU tells the memory that some interaction is
required between the CPU and memory.
- REQUEST
- COMPLETE
None of the given
CS501 Question No: 24
______ is a combination of arithmetic, logic and shifter unit along with some
multiplexers and control unit.
- Barrel Rotator
- Control Unit
- Flip Flop
- ALU
CS501 Question No: 25
1. In Multiple Interrupt Line, a number of interrupt lines are provided between the
____________________ module.
- CPU and the I/O
- CPU and Memory
- Memory and I/O
- None of the given
CS501 Question No: 26
The data movement instructions ___________ data within the machine and to
or from input/output devices.
- Store
- Load
- Move
- None of given
CS501 Question No: 27
CRC has ------------ overhead as compared to Hamming code.
- Equal
- Greater
- Lesser
- None of the given
CS501 Question No: 28
The ________ is w-bit wide and contains a data word, directly connected to the data
bus which is b-bit wide memory address register (MAR) .
- Instruction Register(IR)
- memory address register (MAR)
- memory Buffer Register(MBR)
- Program counter (PC)
www.vuzs.net
CS501 Question No: 29
In_______technique, a particular block of data from main memory can be placed in
only one location into the cache memory .
- Set Associative Mapping
- Direct Mapping
- Associative Mapping
- Block Placement
CS501 Question No: 30
_______ indicate the availability of page in main memory.
- Access Control Bits
- Used Bits
- Presence Bits
- None of the given
CS501 Question No: 31 ( M a r k s: 1 )
What are the hardware interrupts in a computer system?Mention its utility.
CS501 Question No: 32 ( M a r k s: 1 )
Consider a LAN, using bus topology. If we replace the bus with a switch, what change
will occur in such a configuration?
CS501 Question No: 33 ( M a r k s: 2 )
Where do you find the utility of hardware interrupts in a computer system?
CS501 Question No: 34 ( M a r k s: 2 )
Differentiate between CPU register and Cache Memory.
CS501 Question No: 35 ( M a r k s: 3 )
Name three important schemes that are commonly used for error control.
CS501 Question No: 36 ( M a r k s: 3 )
What do you understand by the term data synchronization ?
Explain briefly the following schemes of data synchronization in your own words
Synchronous transmission
Asynchronous transmission
CS501 Question No: 37 ( M a r k s: 3 )
Differenciate between Spatial Locality And Temporal Locality .
CS501 Question No: 38 ( M a r k s: 5 )
Given a 16-bit parallel output port attached with the FALCON-A CPU as shown in the figure. The
port is mapped onto address DEh of the FALCON-A s I/O space. Sixteen LED branches are
used to display the data being received from the FALCON-A s data bus. Every LED branch is
wired in such a way that when a 1 appears on the particular data bus bit, it turns the LED on; a 0
turns it off.
Which LEDs will be ON when the instruction
out r2, 222
executes on the CPU? Assume r2 contains 1234h.
CS501 Question No: 39 ( M a r k s: 5 )
Consider a 4 way set-associative cache with 256KB capacity and 32 byte lines
a) How many sets are there in the cache?
b) How many bits of address are required to select a set in cache?
CS501 Question No: 40 ( M a r k s: 10 )
Describe the following features of FALCON-A Assembler
Symbol Table
I/O Ports
List File
Single Step
Error Log
CS501 Question No: 41 ( M a r k s: 10 )
How many platters are required for a 40GB disk if there are 1024
bytes/sector, 2048 sectors per track and 4096 tracks per platter
How many platters are required for a 80GB disk if there are 1024
bytes/sector, 2048 sectors per track and 4096 tracks per platter
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