CS Mastery Quiz

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CS Mastery Quiz: core CS concepts.

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CS Mastery Quiz


Froggy Jumps CS Mastery QuizVersión en línea CS Mastery Quiz: core CS concepts. por Ail 1 What does CPU stand for in computer science? a Central Program Unit b Compute Processing Utility c Central Processing Unit 2 Which data structure uses LIFO when adding/removing elements? a Queue b Tree c Stack 3 Big-O notation describes what aspect of an algorithm? a Exact running time for all inputs b Average case complexity c Upper bound on the growth rate of the algorithm 4 What does DNS do in networking? a Encrypts web traffic b Translates domain names to IP addresses c Stores browser caches 5 Which sorting algorithm has an average time complexity of O(n log n)? a BubbleSort b QuickSort c SelectionSort 6 What is a Turing machine? a A database model b A mathematical model of computation c A type of computer hardware 7 What is the main difference between RAM and ROM? a RAM is non-volatile, ROM is volatile b RAM is volatile memory, ROM is non-volatile c Both are always non-volatile 8 What does JSON stand for? a JavaScript Object Notation b JavaObject String c Java Serialized Object Notation 9 What is overfitting in machine learning? a Model underfits training data b Model never learns from data c Model fits training data too closely and fails to generalize 10 What is blockchain primarily known as? a A distributed ledger technology b A database for single-user access c A file compression method 11 What does CPU stand for in computer science? a Central Program Unit b Computer Probe Unit c Central Processing Unit 12 Which data structure uses LIFO ordering? a Stack b Tree c Queue 13 What is a binary search tree best used for? a Random access b Fast lookup of sorted data c Unsorted data storage 14 Which sorting algorithm has the best average performance? a Insertion sort b Bubble sort c Quicksort 15 What is a closure in programming? a A loop construct b A variable type c A function with its captured scope 16 RAM stands for what in computing? a Rapid Access Module b Random Access Memory c Readily Available Memory 17 Which protocol is fundamental for web pages? a HTTP/HTTPS b FTP/SFTP c SMTP 18 What is a pointer in languages like C? a A loop counter b A data type c A variable that holds a memory address 19 Which complexity is considered efficient for search in sorted data? a O(log n) b O(n^2) c O(n) 20 Which paradigm focuses on objects and methods? a Object-oriented programming b Functional programming c Procedural programming 21 What does Big-O notation primarily describe in algorithms? a The upper bound of growth rate of runtime or space b The color of the code lines c The exact number of operations 22 Which data structure provides LIFO ordering? a Queue b Heap c Stack 23 Which algorithm paradigm explores all possible paths, often used in games? a Minimax search b Dynamic programming c Breadth-first search 24 What is a relational database primarily based on? a Graphs with weighted edges b Documents in a collection c Tables with rows and columns and relations 25 Which complexity class represents problems solvable in polynomial time? a NP-complete b P c EXPTIME 26 What is the primary role of a compiler in CS? a Manage memory at runtime b Translate high-level code to machine code c Execute code directly 27 Which concept enables multiple processes to run seemingly simultaneously? a Monomorphism b Serialization c Concurrency 28 In machine learning, what does overfitting mean? a Model fits training data too closely and generalizes poorly b Model underfits the data c Model train-time increases indefinitely 29 Which network protocol ensures reliable data transfer over the Internet? a UDP b TCP c ICMP 30 What is the purpose of hashing in databases and security? a Index data for faster access b Compress data for storage c Create fixed-size fingerprints for data 31 Which symbol is used to indicate addition in basic arithmetic? a + b - c × 32 If you have 3 apples and get 2 more, how many apples in total? a 5 b 6 c 4 33 What word expresses a greater amount: more or less? a more b less c same 34 Which phrase means 'a larger quantity'? a more b fewer c equal 35 In English, the comparative form of 'much' is: a most b moreer c more 36 What is 7 + 4? a 12 b 11 c 10 37 Which operation increases a total by adding parts? a multiplication b addition c subtraction 38 If you have 0 apples and add 5, you have: a -5 b 5 c 0 39 Which number is greater: 9 or 12? a 10 b 12 c 9 40 What is the result of 15 + 0? a 15 b -15 c 0 41 Which term describes obtaining more of something? a stability b increase c decrease 42 If a bag contains more coins than another, the bag has: a the same amount b fewer coins c a larger amount 43 Which word pairs with 'more' to express the highest degree? a most b lesser c least 44 What is 2 + 9? a 10 b 11 c 12 45 Which phrase means adding to existing quantity? a extra b divide c subtract 46 What number is one more than 99? a 99 b 100 c 101 47 In measurements, 'more' implies a: a smaller value b larger value c equal value 48 Which is a synonym for 'more'? a less b additional c negative 49 If you spent 4 and earned 7, what is your net increase? a +3 b +7 c -3 50 Which operation combines two quantities? a addition b subtraction c division 51 What is the result of 5 + 5? a 11 b 9 c 10 52 Which word means 'to obtain more'? a acquire more b lose c ignore 53 If a recipe needs 8 cups and you add 2 more, total is: a 12 cups b 10 cups c 8 cups 54 Which number is greater: 20 or 18? a 18 b 20 c 19 55 What is 0 + 7? a 7 b 0 c -7 56 In the phrase 'more than', what word describes quantity? a quality b pace c quantity 57 Which is another way to say 'increase'? a grow b freeze c shrink 58 What is the value of 3 + 6? a 9 b 8 c 7 59 Which option represents adding one more item? a increment b nullify c decrement 60 What planet is known as the Red Planet? a Jupiter b Mars c Venus 61 What is the chemical formula for water? a H2O b H2O2 c CO2 62 Which gas do plants primarily absorb for photosynthesis? a Carbon dioxide b Nitrogen c Oxygen 63 What is the speed of light in vacuum (approx)? a 150,000 km/s b 1,000 km/s c 299,792 km/s 64 Which organ pumps blood through the body? a Liver b Lungs c Heart 65 What is the force that keeps us on the ground? a Gravity b Friction c Magnetism 66 Which element is essential for life and makes up about 78% of Earth's atmosphere? a Hydrogen b Oxygen c Nitrogen 67 What is the largest planet in our solar system? a Saturn b Jupiter c Neptune 68 What gas do humans breathe out? a Nitrogen b Carbon dioxide c Oxygen 69 What is the primary source of energy for the Earth? a Geothermal heat b The Sun c Moon 70 Which state of matter has a definite shape and volume? a Solid b Gas c Liquid 71 What is the chemical symbol for Gold? a Gd b Ag c Au 72 What part of the cell contains genetic material? a Nucleus b Mitochondrion c Ribosome 73 Which planet has the most moons confirmed? a Mars b Earth c Saturn 74 What process do plants use to make food using sunlight? a Photosynthesis b Fermentation c Respiration 75 What is the powerhouse of the cell? a Mitochondrion b Chloroplast c Nucleus 76 Which vitamin is primarily obtained from sunlight? a Vitamin K b Vitamin D c Vitamin C 77 What is the chemical formula for table salt? a NaCl b KCl c CaCO3 78 Which world ocean is the largest? a Indian Ocean b Atlantic Ocean c Pacific Ocean 79 What force keeps the Moon in orbit around Earth? a Tension b Gravity c Magnetism 80 Which part of the plant conducts photosynthesis? a Mitochondria b Chloroplasts c Vacuole 81 What is the gas mainly responsible for the greenhouse effect? a Hydrogen b Carbon dioxide c Oxygen 82 Which blood cells help fight infection? a Platelets b Red blood cells c White blood cells 83 What is the most abundant gas in Earth's atmosphere? a Oxygen b Nitrogen c Argon 84 Which planet has rings visible from Earth? a Venus b Saturn c Mercury 85 What unit is used to measure electrical current? a Volt b Ampere (amp) c Watt 86 Which macronutrient provides most energy per gram? a Protein b Fat c Carbohydrate 87 What is the process by which a solid turns directly into a gas? a Condensation b Sublimation c Deposition 88 What is the derivative of a function? a Slope of the tangent line b Area under the curve c Intercept

CS Mastery Quiz

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CS Mastery QuizVersión en línea

por Ail

What does CPU stand for in computer science?

Which data structure uses LIFO when adding/removing elements?

Big-O notation describes what aspect of an algorithm?

What does DNS do in networking?

Which sorting algorithm has an average time complexity of O(n log n)?

What is a Turing machine?

What is the main difference between RAM and ROM?

What does JSON stand for?

What is overfitting in machine learning?

What is blockchain primarily known as?

What does CPU stand for in computer science?

Which data structure uses LIFO ordering?

What is a binary search tree best used for?

Which sorting algorithm has the best average performance?

What is a closure in programming?

RAM stands for what in computing?

Which protocol is fundamental for web pages?

What is a pointer in languages like C?

Which complexity is considered efficient for search in sorted data?

Which paradigm focuses on objects and methods?

What does Big-O notation primarily describe in algorithms?

Which data structure provides LIFO ordering?

Which algorithm paradigm explores all possible paths, often used in games?

What is a relational database primarily based on?

Which complexity class represents problems solvable in polynomial time?

What is the primary role of a compiler in CS?

Which concept enables multiple processes to run seemingly simultaneously?

In machine learning, what does overfitting mean?

Which network protocol ensures reliable data transfer over the Internet?

What is the purpose of hashing in databases and security?

Which symbol is used to indicate addition in basic arithmetic?

If you have 3 apples and get 2 more, how many apples in total?

What word expresses a greater amount: more or less?

Which phrase means 'a larger quantity'?

In English, the comparative form of 'much' is:

What is 7 + 4?

Which operation increases a total by adding parts?

If you have 0 apples and add 5, you have:

Which number is greater: 9 or 12?

What is the result of 15 + 0?

Which term describes obtaining more of something?

If a bag contains more coins than another, the bag has:

Which word pairs with 'more' to express the highest degree?

What is 2 + 9?

Which phrase means adding to existing quantity?

What number is one more than 99?

In measurements, 'more' implies a:

Which is a synonym for 'more'?

If you spent 4 and earned 7, what is your net increase?

Which operation combines two quantities?

What is the result of 5 + 5?

Which word means 'to obtain more'?

If a recipe needs 8 cups and you add 2 more, total is:

Which number is greater: 20 or 18?

What is 0 + 7?

In the phrase 'more than', what word describes quantity?

Which is another way to say 'increase'?

What is the value of 3 + 6?

Which option represents adding one more item?

What planet is known as the Red Planet?

What is the chemical formula for water?