Do Now - Retrieval - Programming and Data Structures

1. What are the three basic constructs of programming?

• Algorithms, Variables, and Loops

• Functions, Pointers, and Operators

• Conditional Statements, Loops, and Functions

• Sequence, Selection, and Iteration

Which construct is used to execute instructions in a particular order? (a)  

• Selection
• Sequence
• Iteration
• None of them

Which construct is used to make decisions based on a condition?

• Selection

• Sequence

• Iteration

• None of them

Which construct is used to repeat a block of code until a certain condition is met?

• Selection

• Sequence

• Iteration

• None of them

Which of the following loops in C# is executed at least once, even if the condition in the loop header is false?

• for loop

• while loop

• do-while loop

• foreach loop

What is the output of the following code?

for (int i = 1; i <= 5; i++)

{Console.Write(i); }

• 1 2 3 4 5

• 1 2 3 4

• 2 3 4 5

• 1 3 5

What is a data structure?

• A way of organizing and storing data

• A type of programming language

• An algorithm for sorting data

• A method of encrypting data

How do you access an element in an array?

• By its index

• By its value

• By its name

• By its key

What is the time complexity for accessing an element in an array?

• O(1)

• O(n)

• O(log n)

• O(n^2)

Which of the following data structures is used for storing and accessing data in a last-in, first-out (LIFO) order?

• Stack

• Queue

• Hash Table

• Linked List