Cybersecurity essentials

One course of Cisco's "Skills for all"

You'll Learn These Core Skills:

Understand security controls for networks, servers and applications.
Learn valuable security principals and how to develop compliant policies.
Implement proper procedures for data confidentiality and availability.
Develop critical thinking and problem-solving skills using real equipment and Cisco Packet Tracer.

Module 1 - Cybersecurity Threats, Vulnerabilities and Attacks

Welcome to this module, which aims to explore the range of cybersecurity risks and threats that are ever-present in our world today.

Cybercriminals are constantly finding new ways to exploit vulnerabilities in systems and networks, often with the intention of stealing sensitive information and/or money.

As a cybersecurity professional, you must be able to consider the possibility of a cyber attack occurring (a threat), recognize what makes a target susceptible to an attack (a vulnerability) and understand the different types of cyber attacks and their effects.

Chapter 1.6 - Quiz

1.6.1 Module 1 quiz

Question

A cybercriminal sends a series of maliciously formatted packets to a database server, which causes the server to crash. What do you call this type of attack?

Packet injection SQL injection DoS Man-in-the-middle

Question

Which of the following pieces of information would be classified as personal data?

Select three correct answers

Social security number Driver license number Date and place of birth Job title IP address

1.6.2 Module 1 Quiz explanations

Question

A cybercriminal sends a series of maliciously formatted packets to a database server, which causes the server to crash.

What do you call this type of attack?

Packet injection
SQL injection
DoS
Man-in-the-middle

Explanations

A Denial of Service attack involves the sending of maliciously formatted data packets to a server. The packet can be larger than the allowed IP size such that when it arrives at the server, the server cannot identify the headers in the data packet for it to process and extract data. The server can either freeze or crash, denying allowed users access to its resources and making it unavailable.

Answer: DoS attack

Solved quizzes