Network attacks

Question 1

Denial of service attack (DoS)

Answer 1

A network attack that targets a network or server and floods it with network traffic

Question 2

Distributed denial of service attack (DDoS)

Answer 2

A type of denial or service attack that uses multiple devices or servers in different locations to flood the target network with unwanted traffic

Question 3

SYN flood attack

Answer 3

A type of DoS attack that simulates a TCP/IP connection and floods a server with SYN packets

Question 4

Packet sniffing

Answer 4

The practice of capturing and inspecting data packets across a network

Question 5

IP spoofing

Answer 5

A network attack performed when an attacker changes the source IP of a data packet to impersonate an authorized system and gain access to a network

Question 6

On-path attack

Answer 6

An attack where a malicious actor places themselves in the middle of an authorized connection and intercepts or alters the data in transit

Question 6

Active packet sniffing:

Answer 6

A type of attack where data packets are manipulated in transit

Question 7

Botnet:

Answer 7

A collection of computers infected by malware that are under the control of a single threat actor, known as the “bot-herder”

Question 7

On-path attack:

Answer 7

An attack where a malicious actor places themselves in the middle of an authorized connection and intercepts or alters the data in transit

Question 8

Denial of service (DoS) attack:

Answer 8

An attack that targets a network or server and floods it with network traffic

Question 8

IP spoofing:

Answer 8

A network attack performed when an attacker changes the source IP of a data packet to impersonate an authorized system and gain access to a network

Question 8

Distributed denial of service (DDoS) attack:

Answer 8

A type of denial of service attack that uses multiple devices or servers located in different locations to flood the target network with unwanted traffic

Question 8

Internet Control Message Protocol (ICMP):

Answer 8

An internet protocol used by devices to tell each other about data transmission errors across the network

Question 9

Internet Control Message Protocol (ICMP) flood:

Answer 9

A type of DoS attack performed by an attacker repeatedly sending ICMP request packets to a network server

Question 10

Packet sniffing:

Answer 10

The practice of capturing and inspecting data packets across a network

Question 10

Passive packet sniffing:

Answer 10

A type of attack where a malicious actor connects to a network hub and looks at all traffic on the network

Question 11

Ping of death:

Answer 11

A type of DoS attack caused when a hacker pings a system by sending it an oversized ICMP packet that is bigger than 64KB

Question 12

Replay attack:

Answer 12

A network attack performed when a malicious actor intercepts a data packet in transit and delays it or repeats it at another time

Question 13

Synchronize (SYN) flood attack:

Answer 13

A type of DoS attack that simulates a TCP/IP connection and floods a server with SYN packets

Question 13

Smurf attack:

Answer 13

A network attack performed when an attacker sniffs an authorized user’s IP address and floods it with ICMP packets