Denial of Service

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

• Gaining unauthorized access to sensitive data.

• Forcing a service to fail or become unavailable.

• Installing malware to steal user credentials.

• Encrypting data and demanding a ransom.

Which of the following scenarios describes an unintentional Denial of Service (DoS)?

• An attacker intentionally overloads a server with traffic.

• A competitor deliberately takes down a rival's website.

• A network loop occurs due to misconfigured switches, making the network unusable.

• A hacker exploits a software vulnerability to crash a system.

What is the primary method used in a Distributed Denial of Service (DDoS) attack?

• A single, powerful computer sending a massive amount of data.

• Exploiting a zero-day vulnerability in a target system.

• Launching an army of compromised computers (botnet) to overwhelm a service.

• Physically disconnecting the target server from the network.

How does a DNS amplification attack work in the context of DDoS?

• It uses a small request to trigger a much larger response from a DNS server, directed at the victim.

• It directly infects DNS servers with malware to disrupt their services.

• It floods the victim's network with DNS queries from a single source.

• It modifies DNS records to redirect users to malicious websites.