Answer in one short sentence: what is binary search?
In two concise bullets, explain why databases use indexes.
Give a terse definition of TCP congestion control.
Summarize recursion in exactly one sentence.
Briefly explain what a cache does.
Give a minimal explanation of how rain forms.
In one compact paragraph, describe photosynthesis.
Answer briefly: why should passwords be unique?
Give a concise explanation of unit tests.
In one sentence, explain what DNS does.
Briefly explain why exercise improves health.
Give a short answer: what is a hash table?
Explain gradient descent in two crisp sentences.
Define inflation in one sentence.
Give a terse summary of how vaccines work.
Answer briefly: what is an API?
In one short paragraph, explain how compilers work.
Give a compact explanation of merge sort.
Briefly explain why backups matter.
Define latency in one concise sentence.
Give a minimal explanation of public key cryptography.
In two short bullets, explain what a load balancer does.
Briefly describe how solar panels generate electricity.
Give a one-sentence explanation of supply and demand.
Answer tersely: what is containerization?
In one compact paragraph, explain the water cycle.
Give a short definition of entropy.
Briefly explain how a recommendation system works.
Give a concise answer: why do teams use version control?
Explain neural networks in two short sentences.
Answer in one sentence: what is a database transaction?
Give a terse explanation of event loops.
Briefly explain how airplanes stay aloft.
Give a compact summary of why sleep matters.
In two concise bullets, explain what OAuth is for.
Define bandwidth in one short sentence.
Answer briefly: how does a thermostat work?
Give a minimal explanation of memoization.
Briefly explain why code reviews are useful.
In one short paragraph, describe how markets set prices.
Give a terse answer: what is a microservice?
Explain backpropagation in two compact sentences.
Briefly describe how a search engine ranks pages.
Give a one-sentence explanation of opportunity cost.
Answer concisely: what is rate limiting?
In two short bullets, explain why logging is useful.
Give a compact explanation of climate change.
Briefly explain how checksums detect errors.
Define normalization in databases in one sentence.
Give a terse explanation of garbage collection.
Answer briefly: why does encryption need keys?
In one compact paragraph, explain how GPS finds location.
Give a short explanation of continuous integration.
Briefly describe how a queue differs from a stack.
Define overfitting in one concise sentence.
Give a minimal explanation of DNS caching.
Answer tersely: what is a kernel?
In two concise bullets, explain how to prioritize tasks.
Briefly explain why indexes can slow writes.
Give a compact explanation of HTTP.
In one sentence, explain what a proxy server does.
Answer briefly: how does compression save space?
Give a terse explanation of database replication.
Briefly explain how a compiler differs from an interpreter.
Define amortized cost in one short sentence.
Give a minimal explanation of a Bloom filter.
Answer concisely: why do batteries degrade?
In one compact paragraph, explain how elections use runoff voting.
Give a short explanation of semantic versioning.
Briefly describe how a CDN helps a website.
Define idempotency in one concise sentence.
Answer tersely: what is a mutex?
In two short bullets, explain why monitoring matters.
Give a compact explanation of how email routing works.
Briefly explain how a neural embedding represents text.
Give a one-sentence explanation of dependency injection.
Answer briefly: what is a race condition?
In one compact paragraph, explain why documentation helps teams.
Give a terse description of how a blockchain works.
Briefly explain what a memory leak is.
Define consensus in distributed systems in one sentence.
Give a minimal explanation of a priority queue.
Answer concisely: why is caching hard to invalidate?
In two concise bullets, explain how to debug a slow program.
Briefly explain what a firewall does.
Give a compact explanation of how interest rates affect borrowing.
In one sentence, explain what an operating system does.
Answer briefly: how does a web browser render a page?
Give a terse explanation of feature flags.
Briefly explain how garbage collection pauses happen.
Define eventual consistency in one concise sentence.
Give a minimal explanation of sharding.
Answer concisely: what is a deadlock?
In one compact paragraph, explain how a camera sensor captures light.
Give a short explanation of why indexes need selectivity.
Briefly describe what a scheduler does.
Define precision and recall in one sentence.
Give a terse explanation of streaming APIs.
Answer briefly: why do projects need tests?
In two short bullets, explain how to choose a data structure.
