Computer Knowledge
Computer Memory and Storage
2,121 Questions
Computer memory and storage questions test foundational knowledge of hardware, cache mapping, and data transfer mechanisms. Key areas include Direct Memory Access, analog recording, and RAID levels. This section is essential for candidates preparing for banking and government computer proficiency tests.
Cache memory mappingDirect memory accessRAID storage levelsHard disk technologyOptical media storageMemory addresses
Computer Memory and Storage Questions
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Random Access Memory
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Ready Access Memory
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Runnable Access Memory
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Ready Accountable Memory
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None of these
A
Correct answer
Explanation
RAM stands for Random Access Memory, which is a form of computer data storage that can be read and changed in any order.
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100 rpm
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200 rpm
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300 rpm
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400 rpm
C
Correct answer
Explanation
Standard 3.5-inch floppy disks typically rotate at a speed of 300 rpm to maintain a constant data transfer rate.
D
Correct answer
Explanation
ROM (Read-Only Memory) is non-volatile, meaning it retains its data even when power is turned off, making it suitable for permanent information like firmware.
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circle
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magnetic circle
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sector
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mylar plastic
D
Correct answer
Explanation
The magnetic storage medium inside a floppy disk is made of a thin, flexible plastic film coated with magnetic material, often referred to as Mylar.
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Dynamic RAM
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Non Dynamic RAM
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Ex RAM
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None of these
A
Correct answer
Explanation
Dynamic RAM (DRAM) stores data in capacitors that leak charge over time, requiring periodic refresh operations to maintain the stored information.
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automatic storage allocation
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protection
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shareability
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all the above
D
Correct answer
Explanation
Virtual memory allows for efficient storage allocation, memory protection between processes, and the ability to share memory segments, making all listed options correct.
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Unmanaged cloud storage
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Managed cloud storage
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Block storage devices
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File storage devices
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Virtual storage
A
Correct answer
Explanation
This type of cloud storage class means that the storage is preconfigured for the costumer.
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Wuala
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Sify my storage
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Live mesh
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Sales force
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CouchDB
C
Correct answer
Explanation
This storage service gives you 5 GB of online storage and an online desktop that looks a lot like Windows Vista.
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Jungle disk
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CouchDB
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Client server computing
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Wuala
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Apache hadoop
A
Correct answer
Explanation
This storage service lets you map your Amazon S3 storage space as a network drive on your computer.
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Wuala
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Sify my storage
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Live mesh
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Sales force
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CouchDB
C
Correct answer
Explanation
This storage service gives you 5 GB of online storage and an online desktop that looks a lot like Windows Vista.
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Homogeneous file
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Master file
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Non-Homogeneous file
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Transaction file
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Reference file
C
Correct answer
Explanation
This file in physical data organisation of data storage devices holds instances of many different record types.
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Performs all calculations.
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Receives input data.
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Is extremely limited.
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Is better than human memory.
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Laser card.
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Optical card.
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Master card.
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VISA
A
Correct answer
Explanation
A laser card is an optical memory card that uses laser technology to store data, similar to how video disks store information.
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4.7 inch.
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5 ½ inch.
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3 ½ inch.
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8.7 inch.
A
Correct answer
Explanation
Standard Compact Discs (CDs), which were the primary optical media for high-quality music, have a diameter of 120 mm, which is approximately 4.7 inches.
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latency delay
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epoch delay
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approach time
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seek time
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None of these