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‎docs/modules/kokkos/pages/coding/MCQ_005.adoc‎

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= Welcome to MCQ Kokkos
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*Quiz on the concept of advanced reduction*
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<div id="mcq">
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<p>1.What is the default reducer in Kokkos ?</p>
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<input type="radio" name="q1" value="a"> Max<br>
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<input type="radio" name="q1" value="b"> Min<br>
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<input type="radio" name="q1" value="c"> Sum<br>
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<input type="radio" name="q1" value="d"> Prod<br>
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<button onclick="checkAnswer('c')">Submit</button>
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<p id="result"></p>
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</div>
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<script>
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function checkAnswer(rightAnswer) {
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let answer = document.querySelector('input[name="q1"]:checked')?.value;
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let result = document.getElementById("result");
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if (answer === rightAnswer) {
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result.innerHTML = "Correct!";
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} else {
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result.innerHTML = "Wrong answer, try again.";
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}
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}
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</script>
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<div id="mcq">
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<p>2.What operation does the Kokkos::BAnd reducer perform ?</p>
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<input type="radio" name="q1" value="a"> Binary addition<br>
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<input type="radio" name="q1" value="b"> Binary AND<br>
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<input type="radio" name="q1" value="c"> Binary OR<br>
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<input type="radio" name="q1" value="d"> Binary XOR<br>
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<button onclick="checkAnswer('b')">Submit</button>
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<p id="result"></p>
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</div>
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<script>
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function checkAnswer(rightAnswer) {
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let answer = document.querySelector('input[name="q1"]:checked')?.value;
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let result = document.getElementById("result");
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if (answer === rightAnswer) {
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result.innerHTML = "Correct!";
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} else {
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result.innerHTML = "Wrong answer, try again.";
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}
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}
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</script>
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<div id="mcq">
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<p>3. What reducer allows us to find both the minimum value and its index ?</p>
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<input type="radio" name="q1" value="a"> Min<br>
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<input type="radio" name="q1" value="b"> MinLoc<br>
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<input type="radio" name="q1" value="c"> MinMax<br>
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<input type="radio" name="q1" value="d"> MinMaxLoc<br>
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<button onclick="checkAnswer('b')">Submit</button>
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<p id="result"></p>
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</div>
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<script>
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function checkAnswer(rightAnswer) {
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let answer = document.querySelector('input[name="q1"]:checked')?.value;
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let result = document.getElementById("result");
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if (answer === rightAnswer) {
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result.innerHTML = "Correct!";
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} else {
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result.innerHTML = "Wrong answer, try again.";
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}
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}
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</script>
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<div id="mcq">
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<p>4. How do you specify a custom reducer in a parallel reduction ?</p>
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<input type="radio" name="q1" value="a"> As a first argument<br>
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<input type="radio" name="q1" value="b"> As a final argument<br>
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<input type="radio" name="q1" value="c"> In the body of the lambda<br>
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<input type="radio" name="q1" value="d"> In a separate function<br>
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<button onclick="checkAnswer('b')">Submit</button>
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<p id="result"></p>
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</div>
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<script>
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function checkAnswer(rightAnswer) {
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let answer = document.querySelector('input[name="q1"]:checked')?.value;
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let result = document.getElementById("result");
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if (answer === rightAnswer) {
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result.innerHTML = "Correct!";
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} else {
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result.innerHTML = "Wrong answer, try again.";
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}
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}
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</script>
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<div id="mcq">
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<p>5. What does the Kokkos::MinMaxLoc reducer do ?</p>
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<input type="radio" name="q1" value="a"> Find the minimum and maximum<br>
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<input type="radio" name="q1" value="b"> Find the minimum and maximum with their indices<br>
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<input type="radio" name="q1" value="c"> Find the minimum or maximum, whichever is closer<br>
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<input type="radio" name="q1" value="d"> Find the average between the minimum and the maximum<br>
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<button onclick="checkAnswer('b')">Submit</button>
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<p id="result"></p>
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</div>
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<script>
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function checkAnswer(rightAnswer) {
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let answer = document.querySelector('input[name="q1"]:checked')?.value;
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let result = document.getElementById("result");
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if (answer === rightAnswer) {
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result.innerHTML = "Correct!";
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} else {
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result.innerHTML = "Wrong answer, try again.";
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}
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}
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</script>
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<div id="mcq">
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<p>6. Do Kokkos reducers work on variable length arrays ?</p>
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<input type="radio" name="q1" value="a"> Yes, always<br>
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<input type="radio" name="q1" value="b"> No, never<br>
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<input type="radio" name="q1" value="c"> Only for certain reducersl<br>
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<input type="radio" name="q1" value="d"> Only on CPU<br>
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<button onclick="checkAnswer('b')">Submit</button>
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<p id="result"></p>
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</div>
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<script>
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function checkAnswer(rightAnswer) {
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let answer = document.querySelector('input[name="q1"]:checked')?.value;
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let result = document.getElementById("result");
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if (answer === rightAnswer) {
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result.innerHTML = "Correct!";
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} else {
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result.innerHTML = "Wrong answer, try again.";
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}
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}
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</script>
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<div id="mcq">
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<p>7. What is special about reductions in scalar variables ?</p>
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<input type="radio" name="q1" value="a"> They are faster<br>
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<input type="radio" name="q1" value="b"> They are guaranteed to be synchronous<br>
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<input type="radio" name="q1" value="c"> They only work on CPU<br>
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<input type="radio" name="q1" value="d"> They require a special reducer<br>
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<button onclick="checkAnswer('b')">Submit</button>
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<p id="result"></p>
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</div>
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<script>
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function checkAnswer(rightAnswer) {
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let answer = document.querySelector('input[name="q1"]:checked')?.value;
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let result = document.getElementById("result");
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if (answer === rightAnswer) {
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result.innerHTML = "Correct!";
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} else {
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result.innerHTML = "Wrong answer, try again.";
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}
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}
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</script>
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<div id="mcq">
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<p>8. Is it possible to make multiple discounts simultaneously in Kokkos ?</p>
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<input type="radio" name="q1" value="a"> No, nevers<br>
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<input type="radio" name="q1" value="b"> Yes, but only two at a time<br>
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<input type="radio" name="q1" value="c"> Yes, with identical data types<br>
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<input type="radio" name="q1" value="d"> Yes, even with different data types<br>
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<button onclick="checkAnswer('d')">Submit</button>
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<p id="result"></p>
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</div>
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<script>
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function checkAnswer(rightAnswer) {
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let answer = document.querySelector('input[name="q1"]:checked')?.value;
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let result = document.getElementById("result");
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if (answer === rightAnswer) {
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result.innerHTML = "Correct!";
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} else {
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result.innerHTML = "Wrong answer, try again.";
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}
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}
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</script>
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