What does “immutable” mean?
Anonymous Quiz
90%
Data that cannot be changed after creation
5%
Data stored in memory only
4%
Data that updates automatically
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DevOps Notes.pdf
2.3 MB
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🧠 Things Every Programmer Learns Too Late
🐛 Bugs don’t disappear
📦 Dependencies break
🔄 Requirements change
🧪 Tests save time
📛 Naming is hard
⚠️ Edge cases matter
#techinfo
🐛 Bugs don’t disappear
📦 Dependencies break
🔄 Requirements change
🧪 Tests save time
📛 Naming is hard
⚠️ Edge cases matter
#techinfo
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In Git, what does a “branch” allow you to do?🤔
Anonymous Quiz
5%
Delete project history
13%
Deploy directly to production
82%
Work on changes independently of the main codebase
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What does “latency” refer to in networking?🤔
Anonymous Quiz
23%
The total amount of data transferred per second
73%
The delay before data transfer begins following a request
4%
The number of devices on a network
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Which data structure operates on a “last in, first out” principle?🤔
Anonymous Quiz
31%
Queue
8%
Tree
61%
Stack
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JVM Concepts Worth Understanding
🗑️ Garbage collection
📦 Heap vs stack
🧵 Thread pools
⚙️ JIT compilation
📊 Memory leaks
#techinfo
🗑️ Garbage collection
📦 Heap vs stack
🧵 Thread pools
⚙️ JIT compilation
📊 Memory leaks
#techinfo
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What does “refactoring” mean in software development?
Anonymous Quiz
73%
Improving code structure without changing its behavior
20%
Fixing production bugs only
6%
Adding new features
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What is caching mainly used for?
Anonymous Quiz
17%
Increase code readability
67%
Reduce repeated expensive operations
16%
Reduce code vulnerabilities
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