System Availability Concerns Quiz

What is a Denial of Service (DoS) attack designed to do?

• Protect user data

• Overwhelm a system or network

• Improve network security

• Enhance system performance

Answer explanation

A Denial of Service (DoS) attack aims to overwhelm a system or network, making it unavailable to users. This disrupts normal operations, unlike the other options which focus on protection or improvement.

What can a power outage potentially cause if not properly managed?

• Enhanced data security

• Data loss and hardware damage

• Improved system availability

• Increased productivity

Answer explanation

A power outage can lead to data loss and hardware damage if systems are not properly shut down or protected. This can result in corrupted files and physical damage to components, making it crucial to manage outages effectively.

What is a common consequence of hardware failure?

• Enhanced system security

• Improved hardware performance

• Service disruptions and possible data loss

• Increased data redundancy

Answer explanation

A common consequence of hardware failure is service disruptions and possible data loss, as malfunctioning hardware can lead to system outages and the inability to access or retrieve stored data.

What does the term 'Destruction' refer to in the context of system availability?

• Routine system maintenance

• Improved data encryption

• Increased system uptime

• Deliberate or accidental damage to systems

Answer explanation

In the context of system availability, 'Destruction' refers to deliberate or accidental damage to systems, which can lead to downtime and affect overall system performance.

What is a service outage typically caused by?

• Planned maintenance or unexpected issues

• Enhanced system security

• Increased user demand

• Improved network infrastructure

Answer explanation

A service outage is typically caused by planned maintenance or unexpected issues, as these can disrupt normal operations. Enhanced security, increased demand, and improved infrastructure usually do not directly lead to outages.

What is the primary goal of a Denial of Service (DoS) attack?

• To encrypt the target's files and demand a ransom

• To steal sensitive information from the target

• To make a computer or network resource unavailable to its intended users

• To gain unauthorized access to a network

Answer explanation

The primary goal of a Denial of Service (DoS) attack is to make a computer or network resource unavailable to its intended users, disrupting services and preventing legitimate access.

An attack with the intention to make the target system unavailable to legitimate users is called what type of attack?

• Denial of Service

• Ransomware

• Spyware

• Botnet

Answer explanation

An attack aimed at making a system unavailable to legitimate users is known as a Denial of Service (DoS) attack. This type of attack overwhelms the target, preventing access for authorized users.

Which of the following is a method used to mitigate Denial of Service (DoS) attacks?

• Using a firewall to filter traffic

• Implementing strong encryption protocols

• Enhancing user interface design

• Increasing server storage capacity

Answer explanation

Using a firewall to filter traffic is an effective method to mitigate DoS attacks by blocking malicious traffic and allowing only legitimate requests, thus protecting the server from being overwhelmed.

What is a common indicator that a system is experiencing a Denial of Service (DoS) attack?

• Enhanced data encryption

• Decreased user complaints

• Improved system performance

• Unusually high network traffic

Answer explanation

A common indicator of a Denial of Service (DoS) attack is unusually high network traffic, as attackers flood the network with requests, overwhelming the system and causing legitimate users to experience disruptions.

What is the difference between a Denial of Service (DoS) attack and a Distributed Denial of Service (DDoS) attack?

• DoS attacks are more effective than DDoS attacks

• DoS attacks target hardware, while DDoS attacks target software

• DoS attacks originate from a single source, while DDoS attacks come from multiple sources

• DoS attacks are legal, while DDoS attacks are not

Answer explanation

The correct choice highlights that DoS attacks originate from a single source, making them less complex, while DDoS attacks involve multiple sources, increasing their impact and difficulty to mitigate.