Robert Half Assessment Test IT and Programming Concepts 3

Question 1

What is the difference between a compiler and an interpreter?

Accepted Answer

A compiler translates the whole program before execution; an interpreter executes code line by line

Answer

A compiler runs code line by line; an interpreter translates the whole program first

Answer

They are the same thing with different names

Answer

A compiler only works with low-level languages

Question 2

In networking, what is the function of a firewall?

Accepted Answer

To monitor and filter incoming and outgoing network traffic based on rules

Answer

To increase internet connection speed

Answer

To assign IP addresses to devices on a network

Answer

To encrypt all data stored on a server

Question 3

Which of the following best describes cloud computing?

Accepted Answer

Delivering computing services like storage and processing over the internet

Answer

Running software only on local machines without an internet connection

Answer

Using physical servers located in the same building

Answer

A type of encryption algorithm

Question 4

What is a binary search algorithm most useful for?

Accepted Answer

Searching for a value in a sorted list efficiently

Answer

Sorting an unsorted list of items

Answer

Removing duplicate entries from a dataset

Answer

Converting decimal numbers to binary

Question 5

What does 'debugging' refer to in software development?

Accepted Answer

Identifying and fixing errors or defects in code

Answer

Writing initial code for a new feature

Answer

Optimizing code to run faster

Answer

Deploying code to a staging environment

Question 6

In HTML, which tag is used to create a hyperlink?

Accepted Answer

<a>

Answer

<link>

Answer

<href>

Answer

<url>

Question 7

What is the purpose of an index in a relational database?

Accepted Answer

To speed up data retrieval operations on a table

Answer

To store backup copies of the data

Answer

To enforce referential integrity between tables

Answer

To encrypt sensitive columns