What is the typical capacity of a standard microSD card? MCQ with Answer and Explanation

Question
What is the typical capacity of a standard microSD card?
A. Up to 512 GB (common)
B. Up to 2 GB
C. Up to 32 GB
D. Up to 2 TB (standard SDXC)
Answer: Option A
Solution (By JKSSB Mock Tests)
MicroSD cards are available in many capacities; SDHC up to 32 GB, SDXC up to 2 TB, but common sizes in 2026 are 16, 32, 64, 128, 256, 512 GB. So 512 GB is a typical large capacity.
This question belongs to: Computer Memory and Storage Devices
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Question #1
What is the storage capacity of a standard single-layer Blu-ray Disc?
A. 4.7 GB
B. 50 GB
C. 25 GB
D. 8.5 GB
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Correct Answer: Option C

Explanation:
A standard single-layer Blu-ray disc can hold up to 25 GB of data, whereas dual-layer versions can store up to 50 GB.
This question belongs to: Computer Memory and Storage Devices
Question #2
What is the approximate read speed of a typical SATA III SSD?
A. 50 GB/s
B. 50 MB/s
C. 500 MB/s
D. 5 GB/s
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Correct Answer: Option C

Explanation:
SATA III SSDs typically achieve sequential read speeds around 500-550 MB/s, limited by the SATA III interface (600 MB/s max). NVMe SSDs are faster.
This question belongs to: Computer Memory and Storage Devices
Question #3
What is the purpose of a memory controller in a mobile device?
A. To manage the battery
B. To handle cellular signals
C. To manage the LPDDR memory
D. To control the display
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Correct Answer: Option C

Explanation:
In mobile devices, the memory controller manages the LPDDR (Low-Power DDR) memory, optimizing power consumption and performance.
This question belongs to: Computer Memory and Storage Devices
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