Converting Decimal to Binary Using Least Significant Bit (LSB) Method
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Questions and Answers

Which index does 'banana' have in the array var fruits = ['apple', 'banana', 'cherry', 'date']?

  • 0
  • 1 (correct)
  • 2
  • 3

What is the result of accessing an element in an array using its index directly?

  • It changes all elements in the array to the accessed element.
  • It adds a new element to the array at the accessed index.
  • It displays the element at the accessed index. (correct)
  • It deletes the element at the accessed index.

What is meant by JavaScript arrays being zero-indexed?

  • The first element in the array has an index of 0. (correct)
  • The first element in the array has an index of 1.
  • The last element in the array has an index of 1.
  • The last element in the array has an index of 0.

What does the push method do when used with arrays?

<p>Adds elements to the end of the array. (D)</p> Signup and view all the answers

Which method removes the last element from an array in JavaScript?

<p>'pop' (C)</p> Signup and view all the answers

If an array has 5 elements, what is its length property value?

<p>5 (C)</p> Signup and view all the answers

In the binary representation of a decimal number, where is the Most Significant Bit (MSB) located?

<p>At the bottom (D)</p> Signup and view all the answers

When converting decimal numbers to binary, what is the base of the number in binary form?

<p>2 (D)</p> Signup and view all the answers

What is the binary equivalent of the decimal number 10?

<p>1010 (D)</p> Signup and view all the answers

In the decimal to binary conversion process, what should be written first in the binary number?

<p>Most Significant Bit (MSB) (A)</p> Signup and view all the answers

If a decimal number is 25, what would be its binary equivalent?

<p>10101 (B)</p> Signup and view all the answers

What does it mean when a decimal number is represented as 1101 in binary?

<p>$2^3 + 2^2 + 2^0$ (B)</p> Signup and view all the answers

What is the purpose of using a graph in real-world problems?

<p>To represent connections between entities (A)</p> Signup and view all the answers

How are data structures beneficial in programming?

<p>They provide an easy way to organize and manage data (C)</p> Signup and view all the answers

What is a 'List' in JavaScript commonly referred to as?

<p>An Array (C)</p> Signup and view all the answers

How are elements indexed in JavaScript arrays?

<p>Starting from 0 (C)</p> Signup and view all the answers

What does it mean when it is said that JavaScript arrays are zero-indexed?

<p>The first element is at index 0 (A)</p> Signup and view all the answers

Which statement best describes the relationship between elements and indices in JavaScript arrays?

<p>Elements are stored at specific indices (C)</p> Signup and view all the answers

What is the purpose of a switch-case statement in programming?

<p>To execute a sequence of statements based on a condition (B)</p> Signup and view all the answers

What happens if the break statement is not used inside a case block of a switch statement?

<p>The program will move to the next case block (B)</p> Signup and view all the answers

Which loop type is suitable when the number of iterations is known before entering the loop?

<p>For loop statement (B)</p> Signup and view all the answers

In a while loop, when is the condition/expression evaluated?

<p>Before executing the loop body (A)</p> Signup and view all the answers

What distinguishes a for-loop from other loop types?

<p>It has a header specifying the iteration (D)</p> Signup and view all the answers

Which loop type is often referred to as a pre-test loop?

<p>While loop statement (A)</p> Signup and view all the answers

What is the defining principle of a stack data structure?

<p>Last-In-First-Out (LIFO) (D)</p> Signup and view all the answers

Which of the following is a type of stack data structure that allows dynamic resizing?

<p>Dynamic Size Stack (C)</p> Signup and view all the answers

What happens if you try to add an element to a full fixed size stack?

<p>Overflow error occurs (A)</p> Signup and view all the answers

Which operation in a stack data structure is used to remove an element from the top of the stack?

<p>pop() (A)</p> Signup and view all the answers

In a stack data structure, which operation returns the size of the stack?

<p>size() (C)</p> Signup and view all the answers

What principle does a queue data structure follow?

<p>First-In-First-Out (FIFO) (C)</p> Signup and view all the answers

Study Notes

Array Indexing

  • The index of 'banana' in the array var fruits = ['apple', 'banana', 'cherry', 'date'] is 1.
  • In JavaScript, arrays are zero-indexed, meaning the first element is at index 0.
  • Arrays are indexed from 0 to length - 1, where length is the number of elements in the array.

Array Methods

  • The push method adds an element to the end of an array.
  • The method that removes the last element from an array in JavaScript is pop.
  • If an array has 5 elements, its length property value is 5.

Binary Representation

  • In the binary representation of a decimal number, the Most Significant Bit (MSB) is located at the leftmost position.
  • The base of the number in binary form is 2.
  • The binary equivalent of the decimal number 10 is 1010.
  • When converting decimal numbers to binary, the remainder of the division by 2 is written first in the binary number.
  • The binary equivalent of the decimal number 25 is 11001.
  • When a decimal number is represented as 1101 in binary, it means the number is equivalent to the sum of powers of 2: 12^3 + 12^2 + 02^1 + 12^0.

Data Structures and Programming Concepts

  • A graph is used in real-world problems to model relationships between objects.
  • Data structures are beneficial in programming because they provide efficient ways to store and manipulate data.
  • In JavaScript, a 'List' is commonly referred to as an array.
  • Elements in JavaScript arrays are indexed from 0 to length - 1.
  • JavaScript arrays are zero-indexed, meaning the first element is at index 0.
  • In JavaScript arrays, each element is associated with a unique index, and the index is used to access the element.
  • The purpose of a switch-case statement is to execute different blocks of code based on the value of an expression.
  • If the break statement is not used inside a case block of a switch statement, the code will continue executing into the next case block.
  • The loop type suitable when the number of iterations is known before entering the loop is a for-loop.
  • In a while loop, the condition/expression is evaluated before each iteration.
  • A for-loop is distinguished from other loop types by its initialization, condition, and increment statements.
  • A while-loop is often referred to as a pre-test loop.
  • The defining principle of a stack data structure is Last-In-First-Out (LIFO).
  • A dynamic array is a type of stack data structure that allows dynamic resizing.
  • If you try to add an element to a full fixed-size stack, an error will occur.
  • The operation in a stack data structure used to remove an element from the top of the stack is pop.
  • The operation in a stack data structure that returns the size of the stack is size.
  • A queue data structure follows the First-In-First-Out (FIFO) principle.

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Learn how to convert a decimal number to binary by starting with the least significant bit at the top and the most significant bit at the bottom. Follow step-by-step instructions with an example to grasp the concept easily.

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