Robert Half Assessment IT and Programming Concepts Questions and Answers

Question 1

A software development team is working on a project where the requirements are expected to change frequently.
The client wants to see functional pieces of the software every few weeks.
Which software development methodology is best suited for this scenario?

Accepted Answer

Agile

Answer

Waterfall

Answer

Lean

Answer

Spiral

Question 2

What is the primary purpose of a primary key in a relational database table?

Accepted Answer

To uniquely identify each record in the table.

Answer

To establish a relationship with another table.

Answer

To automatically sort the data in ascending order.

Answer

To encrypt sensitive data within the table.

Question 3

In programming, which of the following best describes the purpose of declaring a variable?

Accepted Answer

To reserve a named space in memory for a value of a specific data type.

Answer

To execute a specific block of code repeatedly.

Answer

To make a decision between two or more paths in the code.

Answer

To store the final output of the program.

Question 4

A programmer needs to send data from one computer to another over the internet. Which type of address is used to identify the destination device on the global network?

Accepted Answer

IP Address

Answer

MAC Address

Answer

Port Number

Answer

Hostname

Question 5

Which of the following data structures stores its elements in contiguous memory locations, allowing for fast, constant-time access to any element by its index?

Accepted Answer

Array

Answer

Linked List

Answer

Hash Table

Answer

Binary Tree

Question 6

A developer needs to write a block of code that executes exactly 100 times. Which type of loop is generally the most appropriate and conventional choice for this task?

Accepted Answer

A for loop

Answer

A while loop

Answer

An if-else statement

Answer

A switch statement