How does a DDoS attack amplify its impact compared to a simple DoS attack?

By targeting multiple ports on the same server

By using a botnet of compromised devices to send traffic from many sources simultaneously

By sending larger packets than a standard DoS attack

By using a faster internet connection than the attacker's own

A government agency's public DNS servers are being used as reflectors in a DNS amplification attack against a third-party target. The agency's DNS servers are authoritative for its own domains and also provide recursive resolution for internal users. The agency wants to stop its servers from being abused while maintaining service for internal users. Which configuration change is most appropriate?

Restrict recursion to internal IP addresses only

Block all DNS queries from external IP addresses

Enable DNS response rate limiting (RRL) on the servers

Disable recursion on the DNS servers

How are compromised devices in a botnet typically coordinated?

Through manual configuration by the attacker on each device

Through a command-and-control (C2) server that sends instructions to the bots

Through email notifications sent to each bot

Through direct peer-to-peer communication between all bots

Which of the following best describes the objective of a DoS attack?

To exhaust the target's resources so that it cannot respond to legitimate requests

To encrypt the target's data and demand a ransom for decryption

To install malware on the target for persistent remote access

To intercept and read communications between the target and its users

EC-CouncilEthical Hacking Essentials

Domain 5Objective 2

DoS and DDoS Attack Methods EHE Practice Questions (Page 11)

Part of the Network-Level Attacks and Countermeasures domain, which makes up ~12% of our current practice bank.

63questions here

13free pages

17concepts

17 Concepts in This Objective

DoS attack definition
DDoS attack definition
Volumetric attacks
Protocol attacks
Application-layer attacks
SYN flood attack
UDP flood attack
ICMP flood attack
Ping of Death
Smurf attack
HTTP flood attack
Slowloris attack
DNS amplification attack
NTP amplification attack
Botnet role in DDoS
DDoS mitigation techniques
DoS/DDoS countermeasures

Questions 51–55

51foundation · easy
How does a DDoS attack amplify its impact compared to a simple DoS attack?
Select an answer first
52foundation · easy
What type of server is exploited in a DNS amplification attack?
Select an answer first
53expert · hard
A government agency's public DNS servers are being used as reflectors in a DNS amplification attack against a third-party target. The agency's DNS servers are authoritative for its own domains and also provide recursive resolution for internal users. The agency wants to stop its servers from being abused while maintaining service for internal users. Which configuration change is most appropriate?
Select an answer first
54foundation · easy
How are compromised devices in a botnet typically coordinated?
Select an answer first
55foundation · easy
Which of the following best describes the objective of a DoS attack?
Select an answer first

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DoS and DDoS Attack Methods EHE Practice Questions (Page 11)

Questions 51–55

How does a DDoS attack amplify its impact compared to a simple DoS attack?

What type of server is exploited in a DNS amplification attack?

How are compromised devices in a botnet typically coordinated?

Which of the following best describes the objective of a DoS attack?

Keep studying — Network-Level Attacks and Countermeasures