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GK One-Line Question & Answer

15541+ short questions with short answers, covering every category and sub-category on the site — no long articles to scroll through. Good for a fast recap before an exam, or a few minutes of daily practice.

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Computer Fundamentals → Introduction to Computer 38

Docker uses which technology?
Containers
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Containers vs VMs: containers are?
Lighter and faster to start
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Big Data is characterized by the '3 Vs' which are?
Volume, Velocity, Variety
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Machine learning is a subset of?
Artificial Intelligence
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Deep learning uses?
Artificial neural networks
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IoT stands for?
Internet of Things
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Quantum computing uses?
Qubits (quantum bits)
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Blockchain is characterized by?
Immutable distributed ledger
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Cryptocurrency uses which technology?
Blockchain
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AR stands for in computing?
Augmented Reality
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VR stands for?
Virtual Reality
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5G technology offers speeds up to?
10 Gbps
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Nanotechnology in computers involves?
Components at nanometer scale
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Which company manufactures AMD processors?
AMD (Advanced Micro Devices)
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ARM processors are known for?
Low power consumption
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Which storage interface is fastest for SSDs?
NVMe PCIe
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SATA III maximum speed is?
600 MB/s
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The first computer bug was?
An actual insect found in a relay
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Gosling's Java 'JVM' stands for?
Java Virtual Machine
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Bytecode in Java is?
Intermediate code executed by JVM
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IDE in programming stands for?
Integrated Development Environment
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Git is used for?
Version control
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GitHub is?
Cloud-based Git repository hosting service
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Agile methodology is?
Iterative and incremental development
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SDLC stands for?
Software Development Life Cycle
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Which SDLC phase comes first?
Requirements analysis
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Alpha testing is done by?
Internal testers within organization
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Beta testing is done by?
External real users
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Which testing checks if system meets requirements?
System testing
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Regression testing ensures?
Old features still work after changes
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Which data structure is used for breadth-first search (BFS)?
Queue
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Which data structure is used for depth-first search (DFS)?
Stack
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Time complexity of linear search is?
O(n)
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Hash table provides average time complexity of?
O(1)
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Heap data structure is used for?
Priority queue implementation
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In a max-heap, the root is?
Largest element
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Graph with no cycles is called?
Tree/DAG
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Which sorting algorithm is best for nearly sorted arrays?
Insertion sort
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Computer Fundamentals → Output Devices 1

Which type of monitor is thinnest?
OLED
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Computer Fundamentals → Software and Hardware 1

A compiler is to compilation as interpreter is to?
Execution line by line
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