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
B
Correct answer
Explanation
SSDs (Solid State Drives) use flash memory, which has no moving mechanical parts. This allows for significantly faster read and write speeds compared to traditional HDDs.
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Volatile storage
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Non-volatile storage
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Sequential storage
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Direct storage
A
Correct answer
Explanation
Volatile storage requires power to maintain the stored information. If the power is interrupted, the data in volatile memory is lost.
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Faster
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Slower
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Corrupt
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Terminates
A
Correct answer
Explanation
Increasing RAM allows the computer to hold more data and applications in active memory, reducing the need to swap data to the slower hard drive, which makes the system feel faster.
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Secondary
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Primary
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Offline
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None
B
Correct answer
Explanation
RAM (Random Access Memory) is the main memory of a computer, providing the CPU with direct access to data currently in use, thus classifying it as primary memory.
A
Correct answer
Explanation
Hard disk drives (HDD) store data on magnetic platters organized into concentric circles called tracks, which are further divided into sectors.
D
Correct answer
Explanation
ROM is non-volatile memory that stores the BIOS or UEFI instructions needed to start the computer, as this data must persist even when the power is off.
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External
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Internal
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Both
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None
B
Correct answer
Explanation
The main memory (RAM) is located inside the computer system unit, making it internal memory. External memory refers to secondary storage devices like USB drives or external hard disks.
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Volatile storage
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Non-volatile storage
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Sequential storage
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Direct storage
B
Correct answer
Explanation
Non-volatile storage is a type of computer memory that can retrieve stored information even after having been power cycled (turned off and back on).
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Primary, secondary, online
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Primarily, secondary, offline
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Primary, secondary, offline
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None
C
Correct answer
Explanation
Computer memory is generally categorized into primary memory (RAM/ROM), secondary memory (HDD/SSD), and offline storage (removable media).
Which of the following is NOT a type of graphics memory?
C
Correct answer
Explanation
SRAM is not a type of graphics memory. It is a type of high-speed memory that is used in CPUs and GPUs.
Which technology is commonly used for long-term preservation of digital language archives?
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Cloud storage
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Magnetic tape
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Optical discs
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Solid-state drives
B
Correct answer
Explanation
Magnetic tape is commonly used for long-term preservation of digital language archives due to its high storage capacity, durability, and cost-effectiveness.
What was the first commercially successful compact disc player?
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The Sony CDP-101
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The Philips CD100
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The Magnavox CDV480
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The JVC XL-V1
A
Correct answer
Explanation
The Sony CDP-101 was introduced in 1982 and quickly became popular with consumers.
What is the best way to store your outdoor photos?
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On a hard drive
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In the cloud
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On a memory card
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All of the above
D
Correct answer
Explanation
All of these methods are good for storing your outdoor photos. Storing your photos on a hard drive will give you the most control over your files, storing them in the cloud will allow you to access them from anywhere, and storing them on a memory card will make it easy to transfer them to your computer or other devices.
Which of the following is a common data storage system used in astroinformatics?
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Distributed file systems
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Cloud storage
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Object storage
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All of the above
D
Correct answer
Explanation
Distributed file systems, cloud storage, and object storage are commonly used data storage systems in astroinformatics for handling large volumes of astronomical data.
What is the best way to store and organize wedding photos?
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On a hard drive
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In the cloud
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On a USB drive
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In a photo album
B
Correct answer
Explanation
Storing wedding photos in the cloud is the best way to ensure that they are safe and accessible from anywhere.