Cloud Computing Intermediate Quiz 3
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Cloud Computing Intermediate Quiz 3
1. What is "Cold Storage" in an intermediate context?
Storing hard drives in high-tech freezer units
Low-cost archival storage with long retrieval times
Slowing a processor to reduce overall power use
2. What is "Database Sharding"?
Splitting a database into smaller, faster pieces
Breaking a physical server into several small parts
Replacing all user names with random numbers
3. What is "Immutable Infrastructure"?
Servers made of indestructible, non-melting metal
A policy prohibiting users from changing passwords
Replacing rather than updating infrastructure
4. What is "Spot Instance" or "Preemptible VM"?
Premium virtual machines with guaranteed availability
Discounted excess capacity that can be reclaimed
A server physically painted with a spot-like pattern
5. What is "Encryption at Rest"?
Protecting stored disk data using cryptography
Powering off computers nightly to prevent hacking
Encrypting furniture to prevent unauthorized use
6. What is "Encryption in Transit"?
Mailing physical keys to people traveling on a bus
Encrypting a vehicle so it cannot be stolen in motion
Protecting data moving between clients and servers
7. What is a "Read Replica"?
A person hired to read every file uploaded to the cloud
A database copy used exclusively for read operations
Specialized glasses for reading data on tiny screens
8. What is "Cold Migration"?
Moving a powered-off virtual machine to a new host
Relocating servers to cold climates for cheap cooling
Deleting files in winter and restoring them in summer
9. What is "Live Migration" or "vMotion"?
A reality TV show about people living in datacenters
Using video cameras to watch files move across networks
Moving a running VM to a new host without downtime
10. What is a "Bastion Host"?
A server physically guarded by an on-site security team
A secure gateway for accessing private subnet instances
Cloud storage accessible only to high-level executives
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