11th Class Computer Science Online MCQs with pdf

11th Class Computer Science Online MCQs with pdf 11th Class Computer Science Web Quiz for BISE Sahiwal (2025-26 Smart Syllabus). Updates & Features: Subject: Computer Science (Python, SDLC, Algorithms, Data Analytics). Content: 30+ unique questions generated directly from the uploaded PECTAA Textbook. Syllabus: Covers Units 1, 2, 3, 4, and 5 (Software Development, Python, Algorithms, Computational Structures, Data Analytics). If you find any error or want to give suggestion for improvement,you may contact to me at +923146685547 (WhatsApp).اگر آپ کو کوئی خامی نظر آتی ہے یا آپ بہتری کے لیے کوئی تجویز دینا چاہتے ہیں تو آپ مجھ سے رابطہ کر سکتے ہیں۔My WhatsApp number is 923146685547. Education & CareerJoin my free WhatsApp chanel to get authentic news first.👇👇👇https://whatsapp.com/channel/0029VbBjge87j6gDtBXk3K2J 11th Computer Science Quiz BISE Sahiwal (2025-26) :root { --primary: #00695C; /* Teal for CS */ --accent: #00BFA5; --bg: #E0F2F1; --text: #263238; --font-main: 'Poppins', sans-serif; --font-code: 'Courier New', monospace; } * { box-sizing: border-box; -webkit-tap-highlight-color: transparent; } body { margin: 0; padding: 0; font-family: var(--font-main); background: var(--bg); color: var(--text); } /* LAYOUT */ .app-container { max-width: 700px; margin: 0 auto; background: #fff; min-height: 100vh; display: flex; flex-direction: column; position: relative; box-shadow: 0 0 25px rgba(0,0,0,0.08); } .view-section { display: none; padding: 20px; animation: slideIn 0.3s ease; } .view-section.active { display: block; } @keyframes slideIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } } /* HEADER */ .app-header { background: linear-gradient(135deg, var(--primary), #004D40); color: white; padding: 35px 20px; text-align: center; border-radius: 0 0 30px 30px; margin-bottom: 25px; box-shadow: 0 4px 15px rgba(0,77,64,0.3); } .app-header h1 { margin: 0; font-size: 1.8rem; font-weight: 800; letter-spacing: 1px; } .app-header p { margin: 8px 0 0; opacity: 0.9; font-size: 0.9rem; } /* INPUTS */ .input-field { width: 100%; padding: 16px; border: 2px solid #B2DFDB; border-radius: 12px; font-size: 1rem; margin-bottom: 15px; outline: none; transition: 0.3s; background: #FAFAFA; } .input-field:focus { border-color: var(--primary); background: #fff; } .btn-main { width: 100%; padding: 16px; background: var(--primary); color: white; border: none; border-radius: 50px; font-weight: 700; font-size: 1rem; cursor: pointer; box-shadow: 0 5px 15px rgba(0,105,92,0.3); transition: transform 0.1s; display: block; text-align: center; margin-top: 10px; } .btn-main:active { transform: scale(0.98); } /* SETS */ .set-item { background: #fff; border: 1px solid #E0F2F1; border-radius: 15px; padding: 18px; margin-bottom: 12px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; box-shadow: 0 2px 8px rgba(0,0,0,0.03); transition: 0.2s; } .set-item:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: 0 5px 15px rgba(0,0,0,0.08); } .set-meta h3 { margin: 0; font-size: 1.1rem; color: #004D40; font-weight: 700; } .set-meta span { font-size: 0.8rem; color: #546E7A; } .set-icon { background: #E0F2F1; color: var(--primary); width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; } /* QUIZ */ .sticky-bar { position: sticky; top: 0; background: rgba(255,255,255,0.98); z-index: 50; padding: 12px 15px; border-bottom: 1px solid #eee; display: flex; justify-content: space-between; align-items: center; backdrop-filter: blur(5px); } .stat-pill { background: #F5F5F5; padding: 6px 12px; border-radius: 20px; font-size: 0.85rem; font-weight: 700; display: flex; align-items: center; gap: 5px; } .stat-pill.timer { color: #D32F2F; background: #FFEBEE; } .stat-pill.score { color: #2E7D32; background: #E8F5E9; } .q-card { margin-top: 20px; margin-bottom: 25px; padding: 0 5px; } .q-text { font-size: 1.15rem; font-weight: 600; color: #37474F; line-height: 1.5; } .code-snippet { background: #263238; color: #80CBC4; padding: 10px; border-radius: 8px; font-family: var(--font-code); font-size: 0.9rem; margin-top: 10px; display: block; overflow-x: auto; } .opts-grid { display: grid; gap: 12px; } .opt-btn { background: #fff; border: 2px solid #ECEFF1; padding: 15px; border-radius: 12px; text-align: left; cursor: pointer; position: relative; font-size: 1rem; color: #455A64; transition: 0.2s; } .opt-btn:hover { border-color: #B2DFDB; background: #F0F4C3; } .opt-btn.correct { background: #E8F5E9 !important; border-color: #43A047 !important; color: #1B5E20 !important; font-weight: bold; } .opt-btn.wrong { background: #FFEBEE !important; border-color: #E53935 !important; color: #B71C1C !important; } /* LEADERBOARD */ .lb-wrapper { margin-top: 25px; border: 1px solid #E0E0E0; border-radius: 12px; overflow: hidden; background: white; } .lb-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; } .lb-table th { background: var(--primary); color: white; padding: 12px 10px; text-align: left; font-weight: 600; } .lb-table td { padding: 12px 10px; border-bottom: 1px solid #F5F5F5; color: #455A64; } .user-row { background: #FFF8E1 !important; border-left: 4px solid #FF8F00; } .user-row td { color: #BF360C; font-weight: 800; } .col-rank { width: 12%; text-align: center; } .col-name { width: 34%; } .col-clg { width: 34%; font-size: 0.75rem; color: #78909C; } .col-score { width: 20%; text-align: center; font-weight: bold; } /* PDF OVERLAY (FIXED) */ #pdf-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: white; z-index: 99999; overflow-y: scroll; display: none; } .pdf-body { width: 100%; max-width: 800px; margin: 0 auto; padding: 40px; background: white; font-family: 'Times New Roman', serif; } .pdf-header { text-align: center; border-bottom: 2px solid #000; padding-bottom: 15px; margin-bottom: 25px; } .pdf-q-box { margin-bottom: 15px; border-bottom: 1px dashed #ccc; padding-bottom: 10px; page-break-inside: avoid; } .pdf-q-txt { font-weight: bold; font-size: 15px; margin-bottom: 8px; color: #000; } .pdf-opts { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; font-size: 13px; color: #000; } .circled { border: 2px solid #000; border-radius: 50%; padding: 2px 8px; display: inline-block; font-weight: bold; } @media (min-width: 768px) { .app-container { margin: 40px auto; border-radius: 25px; overflow: hidden; } .opts-grid { grid-template-columns: 1fr 1fr; } } CS 11th Quiz BISE Sahiwal | Smart Syllabus 2025-26 Enter details for Result Card & Global Leaderboard Start Quiz Powered by PECTAA Textbook 2025 Select Unit Based on New Book 2025 📄 1/30 ⏳ 20:00 ✓ 0 ✕ Next Question → Result Card 0 TOTAL SCORE / 30 📄 UnsolvedPaper PDF 📝 SolvedKey PDF 🏆 Top Leaderboard #NameCollegeScr Try Another Unit // --- CONFIG --- const firebaseConfig = { apiKey: "AIzaSyBTiitRXObKGeWRJfA2yy8wewR20xOBdII", authDomain: "quiz-math-11th.firebaseapp.com", projectId: "quiz-math-11th", storageBucket: "quiz-math-11th.firebasestorage.app", messagingSenderId: "176325740026", appId: "1:176325740026:web:1e62648f53a566f31fd043", measurementId: "G-X2RBPLPW43" }; firebase.initializeApp(firebaseConfig); const db = firebase.firestore(); // --- DATA: CS UNITS --- const sets = [ { id: 1, title: "Unit 1: Software Development", sub: "SDLC, Agile, Waterfall, UML" }, { id: 2, title: "Unit 2: Python Basics", sub: "Variables, Operators, I/O" }, { id: 3, title: "Unit 2: Control & Functions", sub: "Loops, If-Else, Modules, OOP" }, { id: 4, title: "Unit 3: Algorithms", sub: "Sorting, Searching, Complexity" }, { id: 5, title: "Unit 4: Computational Structs", sub: "Stack, Queue, Tree, Graph" }, { id: 6, title: "Unit 5: Data Analytics", sub: "Mean, Median, Visualization" }, { id: 10, title: "Full Book Mock", sub: "Complete Syllabus 2025-26" } ]; // --- QUESTION BANK (Extracted from New Book) --- const qBank = [ // UNIT 1: Software Development { s:1, q:"What is the primary purpose of SDLC?", o:["Deliver high-quality software", "Write code only", "Fix hardware", "Manage database"], a:0 }, { s:1, q:"Which model is linear and sequential?", o:["Waterfall Model", "Agile Model", "Spiral Model", "Iterative Model"], a:0 }, { s:1, q:"Agile methodology focuses on:", o:["Short cycles (Sprints)", "Comprehensive documentation", "Linear progression", "Rigid planning"], a:0 }, { s:1, q:"Which diagram shows interactions between users and the system?", o:["Use Case Diagram", "Class Diagram", "Activity Diagram", "Sequence Diagram"], a:0 }, { s:1, q:"Singleton Design Pattern ensures:", o:["Only one instance of a class", "Multiple instances", "No instances", "Database connection"], a:0 }, { s:1, q:"Testing individual components is called:", o:["Unit Testing", "System Testing", "Integration Testing", "Acceptance Testing"], a:0 }, { s:1, q:"Which phase involves gathering user needs?", o:["Requirement Analysis", "Design", "Coding", "Maintenance"], a:0 }, { s:1, q:"UML stands for:", o:["Unified Modeling Language", "Universal Model Logic", "Unique Method Log", "Unified Machine Learn"], a:0 }, { s:1, q:"Which is a non-functional requirement?", o:["System performance", "User login", "Print receipt", "Add to cart"], a:0 }, { s:1, q:"Sequence diagrams are used to show:", o:["Flow of messages over time", "Static structure", "Deployment view", "Database schema"], a:0 }, { s:1, q:"Which tool helps in finding bugs by stepping through code?", o:["Debugger", "Compiler", "Interpreter", "Editor"], a:0 }, { s:1, q:"Factory Design Pattern is used to:", o:["Create objects without specifying class", "Restrict object creation", "Connect databases", "Visualize data"], a:0 }, { s:1, q:"What is the final phase of SDLC?", o:["Maintenance", "Deployment", "Testing", "Coding"], a:0 }, // UNIT 2: Python Basics { s:2, q:"Which function is used to output text in Python?", o:["print()", "echo()", "write()", "output()"], a:0 }, { s:2, q:"What is the correct file extension for Python?", o:[".py", ".pt", ".python", ".p"], a:0 }, { s:2, q:"Which symbol is used for single-line comments?", o:["#", "//", "/*", "--"], a:0 }, { s:2, q:"Output of: print(10 // 3)", o:["3", "3.33", "1", "10"], a:0 }, { s:2, q:"Output of: print(2 ** 3)", o:["8", "6", "5", "9"], a:0 }, { s:2, q:"Which data type is immutable?", o:["Tuple", "List", "Dictionary", "Set"], a:0 }, { s:2, q:"input() function always returns:", o:["String", "Integer", "Float", "Boolean"], a:0 }, { s:2, q:"Variable names cannot start with:", o:["A number", "An underscore", "A capital letter", "A lowercase letter"], a:0 }, { s:2, q:"Which operator checks equality?", o:["==", "=", "===", "!="], a:0 }, { s:2, q:"To convert string '10' to integer, use:", o:["int()", "str()", "float()", "eval()"], a:0 }, { s:2, q:"Which is a valid variable name?", o:["my_var", "1var", "my-var", "class"], a:0 }, { s:2, q:"Logical operator for NOT is:", o:["not", "!", "~", "non"], a:0 }, // UNIT 2: Control & Functions { s:3, q:"Keyword used to define a function:", o:["def", "func", "function", "define"], a:0 }, { s:3, q:"Loop used for iterating over a sequence:", o:["for", "while", "do-while", "repeat"], a:0 }, { s:3, q:"Correct syntax for 'if' statement:", o:["if condition:", "if (condition)", "if condition then", "case condition"], a:0 }, { s:3, q:"What is 'self' in Python OOP?", o:["Reference to current instance", "A keyword", "A global variable", "A library"], a:0 }, { s:3, q:"Which mode opens a file for writing (overwriting)?", o:["'w'", "'r'", "'a'", "'x'"], a:0 }, { s:3, q:"Method to add item to list:", o:["append()", "add()", "push()", "insert()"], a:0 }, { s:3, q:"range(5) generates numbers:", o:["0 to 4", "1 to 5", "0 to 5", "1 to 4"], a:0 }, { s:3, q:"__init__ is known as:", o:["Constructor", "Destructor", "Method", "Attribute"], a:0 }, { s:3, q:"To handle exceptions, we use:", o:["try-except", "catch-throw", "do-catch", "if-else"], a:0 }, { s:3, q:"A blueprint for creating objects is:", o:["Class", "Method", "Module", "Package"], a:0 }, { s:3, q:"Break statement is used to:", o:["Exit the loop", "Skip iteration", "Restart loop", "Pause program"], a:0 }, { s:3, q:"Which structure stores Key-Value pairs?", o:["Dictionary", "List", "Tuple", "Set"], a:0 }, // UNIT 3: Algorithms { s:4, q:"An algorithm must be:", o:["Well-defined", "Ambiguous", "Infinite", "Complex"], a:0 }, { s:4, q:"Big O notation measures:", o:["Time/Space Complexity", "Code Length", "Variable Count", "Accuracy"], a:0 }, { s:4, q:"Binary Search requires the list to be:", o:["Sorted", "Unsorted", "Large", "Small"], a:0 }, { s:4, q:"Time complexity of Binary Search is:", o:["O(log n)", "O(n)", "O(n^2)", "O(1)"], a:0 }, { s:4, q:"Which sort compares adjacent elements?", o:["Bubble Sort", "Merge Sort", "Quick Sort", "Selection Sort"], a:0 }, { s:4, q:"Problem with 'Yes/No' output is:", o:["Decision Problem", "Search Problem", "Optimization Problem", "Counting Problem"], a:0 }, { s:4, q:"DFS uses which data structure?", o:["Stack", "Queue", "Array", "Tree"], a:0 }, { s:4, q:"BFS uses which data structure?", o:["Queue", "Stack", "Graph", "List"], a:0 }, { s:4, q:"Worst case of Bubble Sort:", o:["O(n^2)", "O(n log n)", "O(n)", "O(log n)"], a:0 }, { s:4, q:"Halting Problem is an example of:", o:["Unsolvable Problem", "Solvable Problem", "NP Problem", "P Problem"], a:0 }, { s:4, q:"Greedy algorithms make choices that are:", o:["Locally optimal", "Globally optimal", "Random", "Worst"], a:0 }, { s:4, q:"Divide and Conquer is used in:", o:["Merge Sort", "Bubble Sort", "Linear Search", "Selection Sort"], a:0 }, // UNIT 4: Computational Structures { s:5, q:"Which structure follows LIFO?", o:["Stack", "Queue", "List", "Tree"], a:0 }, { s:5, q:"Which structure follows FIFO?", o:["Queue", "Stack", "Graph", "Array"], a:0 }, { s:5, q:"Top node of a tree is called:", o:["Root", "Leaf", "Branch", "Child"], a:0 }, { s:5, q:"Nodes in a graph are connected by:", o:["Edges", "Vertices", "Points", "Lines"], a:0 }, { s:5, q:"Push and Pop are operations of:", o:["Stack", "Queue", "List", "Tree"], a:0 }, { s:5, q:"Enqueue and Dequeue are operations of:", o:["Queue", "Stack", "Array", "Graph"], a:0 }, { s:5, q:"A graph with directed edges is:", o:["Directed Graph", "Undirected Graph", "Weighted Graph", "Tree"], a:0 }, { s:5, q:"Leaf node has how many children?", o:["0", "1", "2", "Any"], a:0 }, { s:5, q:"Degree of a vertex is:", o:["Number of connected edges", "Weight of edge", "Value of node", "Height"], a:0 }, { s:5, q:"Dynamic size is a property of Python:", o:["List", "Tuple", "Array (Static)", "String"], a:0 }, { s:5, q:"Height of a tree is path from:", o:["Root to farthest leaf", "Root to first child", "Leaf to Leaf", "Any node"], a:0 }, { s:5, q:"Data structure for function calls/recursion:", o:["Stack", "Queue", "Graph", "Tree"], a:0 }, // UNIT 5: Data Analytics { s:6, q:"Measure of central tendency representing average:", o:["Mean", "Median", "Mode", "Range"], a:0 }, { s:6, q:"Most frequent value in dataset is:", o:["Mode", "Mean", "Median", "Variance"], a:0 }, { s:6, q:"Middle value of sorted data is:", o:["Median", "Mean", "Mode", "Standard Deviation"], a:0 }, { s:6, q:"Square root of Variance is:", o:["Standard Deviation", "Mean Deviation", "Range", "Mode"], a:0 }, { s:6, q:"Chart used for comparing categories:", o:["Bar Chart", "Line Graph", "Scatter Plot", "Histogram"], a:0 }, { s:6, q:"Chart showing trends over time:", o:["Line Graph", "Pie Chart", "Bar Chart", "Box Plot"], a:0 }, { s:6, q:"Scatter plots display relationship between:", o:["Two variables", "Time and Date", "Categories", "Frequencies"], a:0 }, { s:6, q:"K-means is a technique for:", o:["Clustering", "Regression", "Classification", "Sorting"], a:0 }, { s:6, q:"Linear regression predicts:", o:["Continuous value", "Category", "Group", "Image"], a:0 }, { s:6, q:"Data cleaning involves:", o:["Removing errors/duplicates", "Visualizing", "Collecting", "Storing"], a:0 }, { s:6, q:"Missing data can be handled by:", o:["Imputation", "Ignoring", "Deleting file", "None"], a:0 }, { s:6, q:"Boxplot displays:", o:["Median and Quartiles", "Mean only", "Mode only", "Trends"], a:0 } ]; // --- APP LOGIC --- let uName = "", uClg = "", uCity = ""; let currQ = 0, score = 0, qList = [], timeLeft = 1200, timerInt; let currSet = 1; document.addEventListener("DOMContentLoaded", () => { const sList = document.getElementById("sets-list"); sets.forEach(s => { const div = document.createElement("div"); div.className = "set-item"; div.innerHTML = `${s.title}${s.sub}▶`; div.onclick = () => startQuiz(s.id); sList.appendChild(div); }); loadLB(); }); function doReg() { uName = document.getElementById("u-name").value.trim(); uClg = document.getElementById("u-college").value.trim(); uCity = document.getElementById("u-city").value.trim(); if(!uName || !uClg || !uCity) return alert("Please fill all details!"); show("view-sets"); } function show(id) { document.querySelectorAll(".view-section").forEach(e => e.classList.remove("active")); document.getElementById(id).classList.add("active"); window.scrollTo(0,0); } function startQuiz(sid) { currSet = sid; // Mix questions for Mock (Set 10) or Filter by Unit let pool = (sid===10) ? qBank : qBank.filter(q => q.s === sid); // Fallback if not enough questions in a specific unit (just in case) if(pool.length Math.random() - 0.5).slice(0, 30); currQ = 0; score = 0; timeLeft = 1200; document.getElementById("score").innerText = "0"; show("view-quiz"); startTimer(); renderQ(); } function startTimer() { clearInterval(timerInt); timerInt = setInterval(() => { timeLeft--; let m = Math.floor(timeLeft/60); let s = timeLeft%60; document.getElementById("time").innerText = `${m}:${s { const btn = document.createElement("div"); btn.className = "opt-btn"; btn.innerHTML = `${String.fromCharCode(65+i)}) ${q.o[i]}`; btn.onclick = () => check(btn, i, q.a); optsDiv.appendChild(btn); }); document.getElementById("next-btn").style.display = "none"; } function check(btn, i, ans) { const all = document.querySelectorAll(".opt-btn"); all.forEach(b => b.style.pointerEvents = "none"); if(i === ans) { btn.classList.add("correct"); score++; document.getElementById("score").innerText = score; } else { btn.classList.add("wrong"); playBeep(); all.forEach(b => { if(b.innerHTML.includes(qList[currQ].o[ans])) b.classList.add("correct"); }); } document.getElementById("next-btn").style.display = "block"; } function nextQ() { currQ++; if(currQ < qList.length) renderQ(); else finish(); } function playBeep() { const ctx = new (window.AudioContext || window.webkitAudioContext)(); const osc = ctx.createOscillator(); osc.type = "square"; osc.frequency.setValueAtTime(150, ctx.currentTime); osc.connect(ctx.destination); osc.start(); osc.stop(ctx.currentTime + 0.15); } function finish() { clearInterval(timerInt); show("view-res"); document.getElementById("res-user").innerText = `${uName} (${uClg})`; document.getElementById("res-score").innerText = score; // Save to Firebase (CS 11 Collection) db.collection("lb_cs11_2026").add({ n: uName, c: uClg, ci: uCity, s: score, t: firebase.firestore.FieldValue.serverTimestamp() }).then(() => loadLB()); } function loadLB() { db.collection("lb_cs11_2026").orderBy("s", "desc").limit(30).get().then(snap => { const tb = document.getElementById("lb-body"); tb.innerHTML = ""; let r = 1; snap.forEach(d => { const val = d.data(); const row = document.createElement("tr"); if(val.n === uName && val.c === uClg) row.classList.add("user-row"); row.innerHTML = `${r++}${val.n}${val.c}${val.s}`; tb.appendChild(row); }); }); } function exitQuiz() { if(confirm("Exit Quiz?")) { clearInterval(timerInt); show("view-sets"); } } // --- PDF GENERATION (OVERLAY METHOD) --- function genPDF(type) { const overlay = document.getElementById("pdf-overlay"); overlay.style.display = "block"; window.scrollTo(0,0); const con = document.getElementById("pdf-content"); con.innerHTML = ` BISE Sahiwal - Computer Science 11th Topic: ${sets.find(s=>s.id===currSet).title} Name: ${uName} (${uClg}) | Score: ${score}/30 ${type.toUpperCase()} PAPER `; qList.forEach((q, idx) => { let html = `Q${idx+1}: ${q.q}`; q.o.forEach((opt, i) => { let cls = (type === 'solved' && i === q.a) ? 'class="circled"' : ''; html += `${String.fromCharCode(65+i)}) ${opt}`; }); html += ``; con.innerHTML += html; }); const opt = { margin: 0.5, filename: `${uName}_CS11_${type}.pdf`, image: { type: 'jpeg', quality: 0.98 }, html2canvas: { scale: 2, useCORS: true, windowWidth: 800 }, jsPDF: { unit: 'in', format: 'a4', orientation: 'portrait' } }; html2pdf().from(con).set(opt).toPdf().get('pdf').then(function(pdf) { const totalPages = pdf.internal.getNumberOfPages(); for (let i = 1; i { overlay.style.display = "none"; }); }