How does a Slowloris attack work?

It sends a flood of complete HTTP requests to overwhelm the server

It sends UDP packets to random ports to consume resources

It sends oversized ICMP packets to crash the server

It opens many connections and sends partial HTTP requests to keep them open

How does a Smurf attack amplify its impact?

By sending oversized ICMP packets to a broadcast address

By sending TCP SYN packets to a broadcast address

By sending UDP packets to a broadcast address with a spoofed source IP

By sending ICMP Echo Request packets to a broadcast address with a spoofed source IP

Why does a UDP flood attack overwhelm a target?

The target must complete a TCP handshake for each packet

The target must decrypt each UDP packet

The target must store each UDP packet in its connection queue

The target must process each UDP packet and generate ICMP responses, consuming CPU and bandwidth

What is the purpose of rate limiting as a DDoS mitigation technique?

To restrict the number of requests a client can make within a certain time period

To encrypt all traffic between the client and server

To block all traffic from unknown IP addresses

To increase the speed of the network connection

A company's server is under a SYN flood attack. The administrator wants to implement a countermeasure that will prevent the server from running out of connection resources. Which countermeasure is most effective?

Increase the server's maximum number of connections

Enable SYN cookies on the server

EC-CouncilEthical Hacking Essentials

Domain 5Objective 2

DoS and DDoS Attack Methods EHE Practice Questions (Page 7)

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 31–35

31foundation · easy
How does a Slowloris attack work?
Select an answer first
32foundation · easy
How does a Smurf attack amplify its impact?
Select an answer first
33foundation · easy
Why does a UDP flood attack overwhelm a target?
Select an answer first
34foundation · easy
What is the purpose of rate limiting as a DDoS mitigation technique?
Select an answer first
35application · medium
A company's server is under a SYN flood attack. The administrator wants to implement a countermeasure that will prevent the server from running out of connection resources. Which countermeasure is most effective?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to EHE

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by EC-Council. “EHE” is a trademark of its owner, used for identification only.