Denial of service attacks
Name:
Date:
Class:
A
Quick Questions
Shade in the A or B circle for each question.
1. Does a denial of service attack flood a target with excessive traffic?
2. Does a DoS attack block legitimate users from accessing a service?
3. Does a DDoS attack come from only one device?
4. Can a denial of service attack make a server unresponsive?
5. Does a DoS attack improve a system's performance?
B
Match the Pairs
Draw a line connecting each item on the left to its match on the right.
| Left column | Right column | |
|---|---|---|
| 1Denial of service attack | AA denial of service attack launched from many devices at once | |
| 2Distributed denial of service (DDoS) | BA DoS attack disrupts a system, reducing its availability | |
| 3Traffic floods a target and overwhelms resources | CAn attack that floods a target to block legitimate access | |
| 4DoS attacks block legitimate users | DA server slowing down under a surge of requests | |
| 5A DoS attack improves a system's uptime | EA DDoS attack uses many devices at once | |
| 6A DDoS attack always comes from a single device | FReal customers unable to reach a flooded website |
C
Definitions
Denial of service attack
D
Fill in the Blanks
Complete each line of code by filling in the missing parts.
1.
An attack can ________ a server.
2.
DoS attacks _____ legitimate users.
3.
Traffic ______ a target with requests.
4.
Multiple devices launch a ___________ attack.
5.
A server becomes ____________ under attack.
E
Spot the Error
Shade in the letter of the line that contains an error.
Question 1
A
A DoS attack boosts speed.
B
It floods a server with data.
C
It overwhelms all resources.
Question 2
A
DoS attacks help all users.
B
They can crash a website.
C
They block real users.
Question 3
A
A DDoS uses many devices.
B
It never affects a target.
C
It floods systems at once.
Question 4
A
Attackers flood a server.
B
It always keeps users happy.
C
This can make it unresponsive.
D
Real users may be blocked.
Question 5
A
A DDoS attack uses many bots.
B
It floods a target at once.
C
It always uses one device.
Answer Key
Denial of service attacks
Section A: Quick Questions
Q1
B — Yes
Q2
A — Yes
Q3
A — False
Q4
B — Yes
Q5
A — False
Section B: Match the Pairs
Q1
Denial of service attack → An attack that floods a target to block legitimate access
Q2
Distributed denial of service (DDoS) → A denial of service attack launched from many devices at once
Q3
Traffic floods a target and overwhelms resources → A server slowing down under a surge of requests
Q4
DoS attacks block legitimate users → Real customers unable to reach a flooded website
Q5
A DoS attack improves a system's uptime → A DoS attack disrupts a system, reducing its availability
Q6
A DDoS attack always comes from a single device → A DDoS attack uses many devices at once
Section C: Definitions
Q1
Denial of service attack — An attack that floods a target with traffic, overwhelming its resources and blocking legitimate usersSection D: Fill in the Blanks
Q1
An attack can overload a server.Q2
DoS attacks block legitimate users.Q3
Traffic floods a target with requests.Q4
Multiple devices launch a distributed attack.Q5
A server becomes unresponsive under attack.Section E: Spot the Error
Q1
A — Wrong — a DoS attack slows or disrupts a server, it does not boost speed.
Q2
A — Wrong — DoS attacks harm users by blocking access, they do not help them.
Q3
B — Wrong — a DDoS does affect the target by flooding it with traffic.
Q4
B — Wrong — flooding a server disrupts service, it does not keep users happy.
Q5
C — Wrong — a DDoS attack uses many devices, not just one.