1_4_10 Section 1 – Attacks, Threats, and Vulnerabilities - 1.4

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What is a common motivation for launching a Denial of Service attack?

To increase the target's website traffic

To divert attention while stealing data (correct)

To help the target improve their service

To enhance the target's security

How can an attacker cause a Denial of Service through physical means?

By pulling the power switch of a building (correct)

By spamming thousands of emails

By exploiting software vulnerabilities

By launching a botnet attack

Why is it important to keep operating systems and applications up to date?

To prevent Denial of Service attacks (correct)

For increasing website traffic

To make the web server faster

To attract competition attention

What is a possible consequence of a Denial of Service attack on a DNS server?

Loss of critical data from the database Signup and view all the answers

How does a Denial of Service attack sometimes impact the victim's focus?

It diverts their efforts to getting essential systems back online Signup and view all the answers

What is highlighted as a misconception about Denial-of-Service attacks in the text?

They are always carried out by organized hacking groups Signup and view all the answers

What type of attack involves overwhelming a web server with excessive traffic?

Denial-of-Service attack Signup and view all the answers

What might an attacker exploit in an application to cause a Denial-of-Service?

Vulnerability in the application Signup and view all the answers

What is the purpose of a zip bomb in the context of a Denial-of-Service attack?

To cause a system to run out of storage space Signup and view all the answers

How can an attacker exploit rapid elasticity in cloud-based services for a Denial-of-Service?

By increasing resource consumption Signup and view all the answers

What distinguishes the security posture for operational technology (OT) environments from traditional network security?

Segmentation and protection approaches Signup and view all the answers

What could be a consequence of a successful Denial-of-Service attack on operational technology?

Traffic lights malfunctioning Signup and view all the answers

Which action could an attacker potentially carry out in an OT environment to create a Denial-of-Service situation?

Triggering automatic resource addition Signup and view all the answers

What might an attacker attempt to achieve by slowing down an application's response times?

Increase application instances Signup and view all the answers

What role does a zip bomb play in causing a Denial-of-Service?

It overloads available storage space Signup and view all the answers

How does an attacker target the available drive space in a Denial-of-Service attack involving a zip bomb?

By tricking users to decompress malicious files Signup and view all the answers

What protocol should you turn on to prevent layer 2 loops in a network?

Spanning Tree Protocol Signup and view all the answers

In a Distributed Denial of Service (DDoS) attack, attackers often use what to create bandwidth spikes?

Botnets Signup and view all the answers

What type of attack involves using many, many systems simultaneously to attack a single service?

Botnet attack Signup and view all the answers

What can an attacker use to amplify a DDoS attack by reflecting a particular type of protocol?

ICMP Signup and view all the answers

How did the Zeus botnet impact computers when it reached its peak?

Infected over 3.6 million computers Signup and view all the answers

Which type of attack creates a loop in a network and can make the entire network unavailable?

Spanning Tree Protocol attack Signup and view all the answers

What happens if one person downloads a very large file and you don't manage the bandwidth over your internet connections?

Creates a network outage for everybody Signup and view all the answers

What could happen if a water line break occurs above your data center?

Creates problems for the data center Signup and view all the answers

What is the purpose of using DNS to amplify a DDoS attack?

To increase the volume of attack traffic Signup and view all the answers

What can be a simple yet effective method for causing a Denial-of-Service, as described in the text?

Walking up to a building and pulling the power switch Signup and view all the answers

Why is it emphasized in the text to keep operating systems and applications up to date?

To address vulnerabilities that could lead to a Denial-of-Service Signup and view all the answers

What is a possible secondary motive an attacker might have for launching a Denial-of-Service while focusing on other activities in the network, according to the text?

Making the victim focus on service restoration while stealing data Signup and view all the answers

Which scenario best exemplifies a Denial-of-Service attack mentioned in the text?

An individual causing service unavailability by pulling a power switch Signup and view all the answers

What is highlighted as an often misperceived aspect of Denial-of-Service attacks in the text?

The belief that they always involve sophisticated cyber tools Signup and view all the answers

In the context of Denial-of-Service, what could be a potential reason why an attacker might target a DNS server specifically?

To amplify the impact of a Distributed Denial of Service attack Signup and view all the answers

What can accidentally happen if you plug in the wrong cables to the wrong switch?

Create a loop in your network Signup and view all the answers

How might one person downloading a large file impact others on a limited internet connection?

Create an outage for everybody Signup and view all the answers

In a Distributed Denial of Service (DDoS) attack, attackers may typically use what to overwhelm a service?

Multiple devices simultaneously Signup and view all the answers

What technique do attackers use to amplify a DDoS attack by sending a small attack as a much larger one?

DDoS Amplification Signup and view all the answers

What is the impact of using DNS to amplify a DDoS attack?

Create bandwidth spikes Signup and view all the answers

What distinguishes a Distributed Denial of Service (DDoS) attack from traditional attacks on a single service?

Use of many systems simultaneously Signup and view all the answers

How can an attacker make a small attack seem like a much larger one in a DDoS attack?

Employ DDoS amplification techniques Signup and view all the answers

What is the main purpose of turning on Spanning Tree Protocol in a network?

Prevent layer 2 loops Signup and view all the answers

Why might an attacker use many, many systems simultaneously in a Distributed Denial of Service (DDoS) attack instead of a single system?

To overwhelm the victim's resources more easily Signup and view all the answers

What is the purpose of a zip bomb in the context of a Denial-of-Service attack?

To quickly overwhelm the available storage space Signup and view all the answers

How can an attacker exploit rapid elasticity in cloud-based services for a Denial-of-Service?

By increasing the number of application instances to consume more resources Signup and view all the answers

What distinguishes the security posture for operational technology (OT) environments from traditional network security?

Segmentation and protection of critical infrastructure components Signup and view all the answers

Which type of attack involves overwhelming a web server with excessive traffic?

Denial-of-Service (DoS) attack Signup and view all the answers

How does an attacker target the available drive space in a Denial-of-Service attack involving a zip bomb?

By tricking the victim into uncompressing a large file Signup and view all the answers

What could be a consequence of a successful Denial-of-Service attack on operational technology?

Halting operations of critical infrastructure Signup and view all the answers

Why is it important to keep operating systems and applications up to date?

To maintain system performance and security Signup and view all the answers

What might an attacker exploit in an application to cause a Denial-of-Service?

Memory leaks that lead to resource exhaustion Signup and view all the answers

What role does a zip bomb play in causing a Denial-of-Service?

It overwhelms the system by expanding to a massive size Signup and view all the answers

What happens if one person downloads a very large file and you don't manage the bandwidth over your internet connections?

Other users may experience slow internet speeds due to bandwidth consumption Signup and view all the answers

1_4_10 Section 1 – Attacks, Threats, and Vulnerabilities - 1.4 – Network Attacks - Denial of Service

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Questions and Answers

What is a common motivation for launching a Denial of Service attack?

How can an attacker cause a Denial of Service through physical means?

Why is it important to keep operating systems and applications up to date?

What is a possible consequence of a Denial of Service attack on a DNS server?

How does a Denial of Service attack sometimes impact the victim's focus?

What is highlighted as a misconception about Denial-of-Service attacks in the text?

What type of attack involves overwhelming a web server with excessive traffic?

What might an attacker exploit in an application to cause a Denial-of-Service?

What is the purpose of a zip bomb in the context of a Denial-of-Service attack?

How can an attacker exploit rapid elasticity in cloud-based services for a Denial-of-Service?

What distinguishes the security posture for operational technology (OT) environments from traditional network security?

What could be a consequence of a successful Denial-of-Service attack on operational technology?

Which action could an attacker potentially carry out in an OT environment to create a Denial-of-Service situation?

What might an attacker attempt to achieve by slowing down an application's response times?

What role does a zip bomb play in causing a Denial-of-Service?

How does an attacker target the available drive space in a Denial-of-Service attack involving a zip bomb?

What protocol should you turn on to prevent layer 2 loops in a network?

In a Distributed Denial of Service (DDoS) attack, attackers often use what to create bandwidth spikes?

What type of attack involves using many, many systems simultaneously to attack a single service?

What can an attacker use to amplify a DDoS attack by reflecting a particular type of protocol?

How did the Zeus botnet impact computers when it reached its peak?

Which type of attack creates a loop in a network and can make the entire network unavailable?

What happens if one person downloads a very large file and you don't manage the bandwidth over your internet connections?

What could happen if a water line break occurs above your data center?

What is the purpose of using DNS to amplify a DDoS attack?

What can be a simple yet effective method for causing a Denial-of-Service, as described in the text?

Why is it emphasized in the text to keep operating systems and applications up to date?

What is a possible secondary motive an attacker might have for launching a Denial-of-Service while focusing on other activities in the network, according to the text?

Which scenario best exemplifies a Denial-of-Service attack mentioned in the text?

What is highlighted as an often misperceived aspect of Denial-of-Service attacks in the text?

In the context of Denial-of-Service, what could be a potential reason why an attacker might target a DNS server specifically?

What can accidentally happen if you plug in the wrong cables to the wrong switch?

How might one person downloading a large file impact others on a limited internet connection?

In a Distributed Denial of Service (DDoS) attack, attackers may typically use what to overwhelm a service?

What technique do attackers use to amplify a DDoS attack by sending a small attack as a much larger one?

What is the impact of using DNS to amplify a DDoS attack?

What distinguishes a Distributed Denial of Service (DDoS) attack from traditional attacks on a single service?

How can an attacker make a small attack seem like a much larger one in a DDoS attack?

What is the main purpose of turning on Spanning Tree Protocol in a network?

Why might an attacker use many, many systems simultaneously in a Distributed Denial of Service (DDoS) attack instead of a single system?

What is the purpose of a zip bomb in the context of a Denial-of-Service attack?

How can an attacker exploit rapid elasticity in cloud-based services for a Denial-of-Service?

What distinguishes the security posture for operational technology (OT) environments from traditional network security?

Which type of attack involves overwhelming a web server with excessive traffic?

How does an attacker target the available drive space in a Denial-of-Service attack involving a zip bomb?

What could be a consequence of a successful Denial-of-Service attack on operational technology?

Why is it important to keep operating systems and applications up to date?

What might an attacker exploit in an application to cause a Denial-of-Service?

What role does a zip bomb play in causing a Denial-of-Service?

What happens if one person downloads a very large file and you don't manage the bandwidth over your internet connections?

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