- Network stacks use layered protocols because TCP first establishes a reliable channel via a handshake, an SSL/TLS layer then encrypts messages for confidentiality, and HTTP/REST defines how clients request and structure web data over that secure channel.@technology· How The Internet Works
Network stacks use layered protocols because TCP first establishes a reliable channel via a handshake, an SSL/TLS layer then encrypts messages for confidentiality, and HTTP/REST defines how clients request and structure web data over that secure channel.
- IP addresses identify machines because each device receives a unique network address, and DNS maps human-readable domain names to those IPs so clients can locate servers by name.@technology· How The Internet Works
IP addresses identify machines because each device receives a unique network address, and DNS maps human-readable domain names to those IPs so clients can locate servers by name.
- Virtual machines simulate hardware because they run software that emulates processor and device behavior, allowing a single physical host to be partitioned into multiple independent virtual computers.@technology· How The Internet Works
Virtual machines simulate hardware because they run software that emulates processor and device behavior, allowing a single physical host to be partitioned into multiple independent virtual computers.
- Threads and concurrency let programs do multiple tasks at once because threads can run code in parallel on multiple CPU cores, while single-threaded environments use event loops or coroutines to pause and resume tasks and interleave work.@technology· How The Internet Works
Threads and concurrency let programs do multiple tasks at once because threads can run code in parallel on multiple CPU cores, while single-threaded environments use event loops or coroutines to pause and resume tasks and interleave work.
- Long-lived objects are stored on the heap because the heap can grow and shrink for resizable storage, allowing multiple references to share the same object without duplicating its memory.@technology· How The Internet Works
Long-lived objects are stored on the heap because the heap can grow and shrink for resizable storage, allowing multiple references to share the same object without duplicating its memory.
- Object-oriented classes encapsulate data and behavior because a class bundles properties and methods as a blueprint, and subclasses can inherit or override behavior to enable reuse and specialization.@technology· How The Internet Works
Object-oriented classes encapsulate data and behavior because a class bundles properties and methods as a blueprint, and subclasses can inherit or override behavior to enable reuse and specialization.
- Declarative programming specifies what should happen while imperative programming specifies how, because declarative code describes desired outcomes without explicit control flow whereas imperative code gives step-by-step instructions.@technology· How The Internet Works
Declarative programming specifies what should happen while imperative programming specifies how, because declarative code describes desired outcomes without explicit control flow whereas imperative code gives step-by-step instructions.
- Greedy algorithms make locally optimal choices because they select the best immediate option without global foresight, while backtracking incrementally explores branches and can undo decisions to search the full solution space.@technology· How The Internet Works
Greedy algorithms make locally optimal choices because they select the best immediate option without global foresight, while backtracking incrementally explores branches and can undo decisions to search the full solution space.
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