computer organization and architecture

1. What do we use to extend the connectivity of the processor bus?
Processor bus की connectivity बढ़ाने के लिए क्या उपयोग किया जाता है?
(BPSC TRE 2023)
A. PCI bus
B. Multiple bus
C. SCSI bus
D. More than one of the above

Correct Answer: A

Explanation (EN): PCI bus is used to connect peripherals and extend processor bus connectivity.

Explanation (HI): PCI bus peripheral devices को जोड़कर connectivity बढ़ाता है.

2. The number of lines used in a data bus is referred to as the ___ of the data bus
Data bus की lines की संख्या को क्या कहते हैं?
(DSSSB PGT)
A. Length
B. Width
C. Density
D. Volatility

Correct Answer: B

Explanation (EN): Number of lines determines data bus width.

Explanation (HI): Lines की संख्या bus की width कहलाती है.

3. With respect to system buses SCSI stands for
System bus में SCSI का full form क्या है?
(DSSSB PGT)
A. Small Computer Side Interface
B. Small Computer System Interface
C. Solid Computer System Interface
D. Synchronous Computer System Interface

Correct Answer: B

Explanation (EN): SCSI stands for Small Computer System Interface.

Explanation (HI): SCSI का full form Small Computer System Interface है.

4. With respect to system bus ___ are used to control the access to and use of data and address lines
System bus में data और address lines को control करने के लिए क्या उपयोग होता है?
(DSSSB PGT)
A. Address lines
B. Decoders
C. Encoders
D. Control lines

Correct Answer: D

Explanation (EN): Control lines manage access and coordination of buses.

Explanation (HI): Control lines bus communication को control करती हैं.

5. Which determines the time taken for devices to coordinate bus usage?
Devices को bus coordinate करने में समय किससे निर्धारित होता है?
(DSSSB PGT)
A. Propagation delay
B. Clock delay
C. Cycle delay
D. Data transfer delay

Correct Answer: A

Explanation (EN): Propagation delay defines signal travel time.

Explanation (HI): Propagation delay signal travel time को define करता है.

6. Direct mapping maps each block of main memory into ___ possible cache line
Direct mapping में हर memory block कितनी cache line में map होता है?
(DSSSB PGT)
A. Only one
B. Two
C. Four
D. Five

Correct Answer: A

Explanation (EN): Each memory block maps to exactly one cache line.

Explanation (HI): हर block केवल एक cache line में map होता है.

7. A system has 5 processes per minute arrival and 6 sec service time what is CPU utilization?
CPU utilization कितना होगा?
(UGC NET 2014)
A. 80%
B. 60%
C. 50%
D. 30%

Correct Answer: C

Explanation (EN): Utilization = service/arrival interval = 50%.

Explanation (HI): CPU utilization 50% होता है.

8. Program experiences 200 failures total and 100 occurred initial failure rate 20 what is current rate?
Failure rate कितना होगा?
(UGC NET 2014)
A. 5
B. 10
C. 20
D. 40

Correct Answer: B

Explanation (EN): Current intensity = 20*(1-0.5)=10.

Explanation (HI): Failure intensity 10 होती है.

9. For switching from user mode to supervisor mode which interrupt is used?
User mode से supervisor mode switch के लिए कौन-सा interrupt उपयोग होता है?
(UGC NET 2014)
A. Internal interrupt
B. External interrupt
C. Software interrupt
D. None

Correct Answer: C

Explanation (EN): Software interrupt triggers mode switching.

Explanation (HI): Software interrupt mode switch करता है.

10. CPU handles interrupt by executing ISR by
CPU interrupt को कैसे handle करता है?
(UGC NET 2015)
A. Checking after each instruction
B. Checking at fetch cycle
C. Whenever interrupt occurs
D. Checking periodically

Correct Answer: A

Explanation (EN): CPU checks interrupt after each instruction execution.

Explanation (HI): CPU हर instruction के बाद interrupt check करता है.

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