Computer Organization Questions and Answers – Large Memories

This set of Computer Organization and Architecture Multiple Choice Questions & Answers (MCQs) focuses on “Large Memories”.

1. The chip can be disabled or cut off from an external connection using ______
a) Chip select
b) LOCK
c) ACPT
d) RESET
View Answer

Answer: a
Explanation: The chip gets enabled if the CS is set otherwise the chip gets disabled.

2. To organise large memory chips we make use of ______
a) Integrated chips
b) Upgraded hardware
c) Memory modules
d) None of the mentioned
View Answer

Answer: c
Explanation: The cell blocks are arranged and put in a memory module.

3. The less space consideration as lead to the development of ________ (for large memories).
a) SIMM’s
b) DIMS’s
c) SRAM’s
d) Both SIMM’s and DIMS’s
View Answer

Answer: d
Explanation: The SIMM (single inline memory module) or DIMM (dual inline memory module) occupy less space while providing greater memory space.
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4. The SRAM’s are basically used as ______
a) Registers
b) Caches
c) TLB
d) Buffer
View Answer

Answer: b
Explanation: The SRAM’s are used as caches as their operation speed is very high.

5. The higher order bits of the address are used to _____
a) Specify the row address
b) Specify the column address
c) Input the CS
d) None of the mentioned
View Answer

Answer: a
Explanation: None.
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6. The address lines multiplexing is done using ______
a) MMU
b) Memory controller unit
c) Page table
d) Overlay generator
View Answer

Answer: b
Explanation: This unit multiplexes the various address lines to lesser pins on the chip.

7. The controller multiplexes the addresses after getting the _____ signal.
a) INTR
b) ACK
c) RESET
d) Request
View Answer

Answer: d
Explanation: The controller gets the request from the device needing the memory read or write operation and then it multiplexes the address.
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8. The RAS and CAS signals are provided by the ______
a) Mode register
b) CS
c) Memory controller
d) None of the mentioned
View Answer

Answer: c
Explanation: The multiplexed signal of the controller is split into RAS and CAS.

9. Consider a memory organised into 8K rows, and that it takes 4 cycles to complete a read operation. Then the refresh overhead of the chip is ______
a) 0.0021
b) 0.0038
c) 0.0064
d) 0.0128
View Answer

Answer: b
Explanation: The refresh overhead is calculated by taking into account the total time for refreshing and the interval of each refresh.
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10. When DRAM’s are used to build a complex large memory, then the controller only provides the refresh counter.
a) True
b) False
View Answer

Answer: a
Explanation: None.

Sanfoundry Global Education & Learning Series – Computer Organisation and Architecture.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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