MCQs

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1. What does HDD form factor refer to?
   a. Data transfer speed
   b. Device interface type
   c. Physical size/geometry
   d. Storage protocol
   Answer: c. Physical size/geometrytechtarget
2. Which is the most common HDD form factor in enterprise cloud servers?
   a. 1.8-inch
   b. 2.5-inch
   c. 3.5-inch
   d. 5.25-inch
   Answer: b. 2.5-inchflagshiptech+1
3. What is the typical diameter of an HDD platter in a 3.5-inch HDD?
   a. 2.5-inch
   b. 3.5-inch
   c. 8-inch
   d. 1.8-inch
   Answer: b. 3.5-inchgeeksforgeeks+1
4. The 2.5-inch HDD form factor is mainly used in which environment?
   a. Desktop PCs
   b. Laptops and servers
   c. Audio players
   d. Compact cameras
   Answer: b. Laptops and serverswikipedia+1
5. Why are HDD form factors important in cloud computing?
   a. Affecting server compatibility
   b. Determining OS support
   c. Setting encryption standards
   d. Regulating RAID levels
   Answer: a. Affecting server compatibilitytechtarget+1
6. Which form factor is largely obsolete today?
   a. 2.5-inch
   b. 3.5-inch
   c. 8-inch
   d. 1.8-inch
   Answer: c. 8-inchwikipedia+1
7. Which HDD form factor is preferred for space-constrained server racks?
   a. 12-inch
   b. 2.5-inch
   c. 8-inch
   d. 5.25-inch
   Answer: b. 2.5-inchflagshiptech
8. What does “SFF” stand for regarding HDD form factors?
   a. Solid Form Factor
   b. Small Form Factor
   c. Server Form Factor
   d. Storage Form Factor
   Answer: b. Small Form Factortechtarget+1
9. What is the typical height of a 2.5-inch HDD?
   a. 5 mm to 15 mm
   b. 19 mm
   c. 101 mm
   d. 7 mm to 9 mm
   Answer: a. 5 mm to 15 mmwikipedia+1
10. Which HDD form factor was commonly used in personal computers in the 1980s–1990s?
    a. 5.25-inch
    b. 2.5-inch
    c. 1.8-inch
    d. 3.5-inch
    Answer: a. 5.25-inchwikipedia+1
11. What determines if a cloud server can use a certain HDD?
    a. Drive’s form factor
    b. Brand reputation
    c. Encryption protocol
    d. OS version
    Answer: a. Drive’s form factortechtarget
12. Which interface is found in both 2.5-inch and 3.5-inch HDDs?
    a. SAS
    b. IDE
    c. SATA
    d. PCIe
    Answer: c. SATAtechtarget
13. The largest typical capacity for a 3.5-inch HDD as of 2025 is?
    a. 6 TB
    b. 36 TB
    c. 3 TB
    d. 320 GB
    Answer: b. 36 TBwikipedia
14. What is a key benefit of 2.5-inch HDDs in cloud racks?
    a. Lower cost per GB
    b. Higher density
    c. Higher RPM always
    d. No heat generation
    Answer: b. Higher densityflagshiptech
15. What do standard form factors allow in data centers?
    a. Proprietary hardware
    b. Easy hardware upgrades
    c. No compatibility
    d. Lower transfer speeds
    Answer: b. Easy hardware upgradeswikipedia
16. Which obsolete HDD form factor was used in CompactFlash slots?
    a. 3.5-inch
    b. 1.8-inch
    c. 1-inch
    d. 0.85-inch
    Answer: c. 1-inchwikipedia
17. Why might cloud environments use both SSD and HDD?
    a. SSD is always larger
    b. HDD offers high capacity, SSD offers speed
    c. Only HDD is used
    d. Only SSD is used
    Answer: b. HDD offers high capacity, SSD offers speedflagshiptech+1
18. For laptops used in cloud administration, which HDD form factor is most common?
    a. 3.5-inch
    b. 2.5-inch
    c. 8-inch
    d. 5.25-inch
    Answer: b. 2.5-inchwikipedia+1
19. What feature do hot-swappable HDD racks require?
    a. Small form factor compatibility
    b. High RPM only
    c. Obsolete connectors
    d. Optical platters
    Answer: a. Small form factor compatibilitysnia+1
20. Modern cloud server chassis are optimized for which HDD form factor?
    a. 5.25-inch
    b. 8-inch
    c. 2.5-inch
    d. 1.8-inch
    Answer: c. 2.5-inchflagshiptech+1
21. Which HDD form factor is ideal for high-capacity, high-reliability environments?
    a. 8-inch
    b. 3.5-inch
    c. 1.8-inch
    d. 2.5-inch
    Answer: b. 3.5-inchtechtarget+1
22. What is the width of a 2.5-inch HDD?
    a. 146 mm
    b. 2.75 inch
    c. 5 mm
    d. 8 mm
    Answer: b. 2.75 inchwikipedia
23. Which form factor is best for mobile cloud devices?
    a. 3.5-inch
    b. 2.5-inch
    c. 1.8-inch
    d. 5.25-inch
    Answer: c. 1.8-inchgeeksforgeeks+1
24. Which HDD form factor had a maximum capacity of 320 GB in 2009?
    a. 2.5-inch
    b. 1.8-inch
    c. 3.5-inch
    d. 1-inch
    Answer: b. 1.8-inchwikipedia
25. What replaced older large HDD form factors in cloud server rooms?
    a. Optical drives
    b. 2.5-inch HDDs
    c. SSD only
    d. Floppy disks
    Answer: b. 2.5-inch HDDstechtarget+1
26. Which form factor is typically used in desktop cloud workstations?
    a. 3.5-inch
    b. 2.5-inch
    c. 1.3-inch
    d. 5.25-inch
    Answer: a. 3.5-inchwikipedia+1
27. Which of the following is an obsolete HDD form factor?
    a. 2.5-inch
    b. 3.5-inch
    c. 8-inch
    d. SSD
    Answer: c. 8-inchtechtarget+1
28. What does higher platter count in HDD form factor usually enable?
    a. Faster interface
    b. Larger capacity
    c. Lower RPM
    d. Smaller size
    Answer: b. Larger capacitywikipedia
29. Form factor standards improve which aspect of cloud data centers?
    a. Power loss
    b. Equipment compatibility
    c. Environmental impact
    d. Cable length
    Answer: b. Equipment compatibilitytechtarget+1
30. What is the main material in HDD platters?
    a. Copper
    b. Glass or aluminum
    c. Plastic
    d. Lead
    Answer: b. Glass or aluminumgeeksforgeeks
31. Which form factor is standard for server HDDs with large storage needs?
    a. 2.5-inch
    b. 3.5-inch
    c. 5.25-inch
    d. 1.8-inch
    Answer: b. 3.5-inchflagshiptech+1
32. What is the “height” of a 3.5-inch HDD often used in desktops?
    a. 5 mm
    b. 26.1 mm
    c. 146.05 mm
    d. 101.6 mm
    Answer: b. 26.1 mmwikipedia
33. Why are smaller HDD form factors used in cloud edge devices?
    a. They reduce power
    b. Enable more compact designs
    c. Increase vibration
    d. Lower data integrity
    Answer: b. Enable more compact designsgeeksforgeeks+1
34. What unit is HDD form factor primarily measured in?
    a. Megabytes
    b. Inches
    c. Watts
    d. Volts
    Answer: b. Inchestechtarget+1
35. The main advantage of standardized form factors is?
    a. Vendor lock-in
    b. Interchangeability
    c. Increased latency
    d. Limited scalability
    Answer: b. Interchangeabilitywikipedia
36. Which HDD form factor is obsolete, with maximum capacity of 47 GB?
    a. 3.5-inch
    b. 5.25-inch (Full Height)
    c. 1.8-inch
    d. 2.5-inch
    Answer: b. 5.25-inch (Full Height)wikipedia
37. Which standard interface often pairs with 2.5-inch HDDs in cloud systems?
    a. PCI
    b. SATA
    c. NVMe
    d. SCSI
    Answer: b. SATAwikipedia+1
38. What is the largest capacity for a 2.5-inch HDD as of 2024?
    a. 1 TB
    b. 6 TB
    c. 3 TB
    d. 10 TB
    Answer: b. 6 TBwikipedia
39. Which factor matters most for choosing cloud server HDD form factor?
    a. Cost of electricity
    b. Rack size compatibility
    c. Data encryption level
    d. Software license
    Answer: b. Rack size compatibilitytechtarget
40. What does “Large Form Factor” refer to in HDD terms?
    a. 2.5-inch
    b. 3.5-inch
    c. 8-inch
    d. 1-inch
    Answer: b. 3.5-inchtechtarget
41. How do cloud providers benefit from SFF drives?
    a. Reduced noise
    b. Higher storage density
    c. Higher costs
    d. Increased latency
    Answer: b. Higher storage densityflagshiptech
42. Which form factor was designed for audio players but is now obsolete?
    a. 3.5-inch
    b. 1.8-inch
    c. 2.5-inch
    d. 8-inch
    Answer: b. 1.8-inchwikipedia
43. What is the main difference between 2.5-inch and 3.5-inch HDDs?
    a. Platter material
    b. Form factor (size)
    c. Power connector style
    d. No difference
    Answer: b. Form factor (size)techtarget+1
44. Which form factor is rarely used in modern cloud data centers?
    a. 3.5-inch
    b. 2.5-inch
    c. 5.25-inch
    d. 2-inch
    Answer: c. 5.25-inchtechtarget+1
45. What determines the number of platters in a form factor?
    a. Vendor name
    b. Physical enclosure dimensions
    c. Firmware version
    d. RAID setting
    Answer: b. Physical enclosure dimensionswikipedia
46. What HDD form factor would best suit portable cloud storage?
    a. 1-inch
    b. 2.5-inch
    c. 3.5-inch
    d. 5.25-inch
    Answer: b. 2.5-inchgeeksforgeeks+1
47. In what units are HDD form factor dimensions specified?
    a. Centimeters
    b. Inches and millimeters
    c. Megabytes
    d. Gigabytes
    Answer: b. Inches and millimeterstechtarget+1
48. The standard height for a single platter 2.5-inch HDD is?
    a. 7 mm
    b. 15 mm
    c. 26 mm
    d. 5 mm
    Answer: a. 7 mmtechtarget
49. Which obsolete form factor was once used in CompactFlash slots?
    a. 3.5-inch
    b. 2.5-inch
    c. 1-inch
    d. 5.25-inch
    Answer: c. 1-inchwikipedia
50. Which modern form factors are most relevant for cloud storage today?
    a. 8-inch and 5.25-inch
    b. 2.5-inch and 3.5-inch
    c. 1.8-inch and 1-inch
    d. 0.85-inch and 1.3-inch
    Answer: b. 2.5-inch and 3.5-inchflagshiptech+2

1. https://www.techtarget.com/searchstorage/definition/HDD-form-factor-hard-disk-drive-form-factor
2. https://store.flagshiptech.com/blog/types-of-server-hard-disk-drives-hdd/
3. https://www.geeksforgeeks.org/computer-organization-architecture/hard-disk-drive-hdd-secondary-memory/
4. https://en.wikipedia.org/wiki/Hard_disk_drive
5. https://en.wikipedia.org/wiki/List_of_disk_drive_form_factors
6. https://www.snia.org/forums/cmsi/knowledge/formfactors
7. https://testbook.com/objective-questions/mcq-on-cloud-technology–5eea6a0d39140f30f369e30f
8. https://www.sanfoundry.com/1000-cloud-computing-questions-answers/
9. https://www.sanfoundry.com/cloud-computing-questions-answers-provisioning-cloud-storage-1/
10. https://examradar.com/fundamentals-of-data-storage-technologies-magnetic-solid-state-optical-etc-mcqs/
11. https://testbook.com/objective-questions/mcq-on-memory–5eea6a1639140f30f369f550
12. https://www.scribd.com/document/488603171/Cloud-Computing-Mcq
13. https://www.red-gate.com/simple-talk/databases/sql-server/database-administration-sql-server/storage-101-understanding-the-hard-disk-drive/
14. https://interviewkickstart.com/blogs/interview-questions/cloud-computing-mcqs-it-professionals
15. https://www.dropbox.com/resources/what-is-a-hard-drive
16. https://hungrymind.in/wp-content/uploads/2020/10/Final-Year-Computer-Engineering-Cloud-Computing-MCQs.pdf
17. https://www.enterprisestorageforum.com/hardware/hdd/
18. https://byjus.com/gate/cloud-computing-mcqs/
19. https://www.geeksforgeeks.org/cloud-computing/cloud-computing/
20. https://www.studocu.com/in/document/savitribai-phule-pune-university/computer-engineering/cloud-computing-mcq-all-unit-1/22998547