What type of attack poses as a TCP connection and floods a server with packets simulating the first step of the TCP handshake?1 pointICMP flood On-path attackSYN flood attackSYN-ACK flood attack
Question
What type of attack poses as a TCP connection and floods a server with packets simulating the first step of the TCP handshake?1 pointICMP flood On-path attackSYN flood attackSYN-ACK flood attack
Solution
The type of attack that poses as a TCP connection and floods a server with packets simulating the first step of the TCP handshake is a SYN flood attack.
Here's a step-by-step explanation:
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In a normal TCP connection, the first step of the TCP handshake involves the client sending a SYN (synchronize) packet to the server.
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In a SYN flood attack, the attacker sends a large number of SYN packets to the target server, often using a fake IP address.
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The server responds to each of these SYN packets with a SYN-ACK (synchronize-acknowledge) packet, and waits for an ACK (acknowledge) packet in response.
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Because the SYN packets were sent from a fake IP address, the server never receives the ACK packets it's waiting for. This leaves a large number of connections half-open, consuming resources on the server.
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If the server's resources are completely consumed by these half-open connections, it may be unable to handle legitimate traffic, resulting in a denial of service.
Similar Questions
Question 1What type of attack uses multiple devices or servers in different locations to flood the target network with unwanted traffic?1 pointDistributed Denial of Service (DDoS) attackDenial of Service (DoS) attack Phishing attackTailgating attack2.Question 2What type of attack poses as a TCP connection and floods a server with packets simulating the first step of the TCP handshake?1 pointICMP flood SYN-ACK flood attackOn-path attackSYN flood attack3.Question 3Fill in the blank: The Denial of Service (DoS) attack _____ is caused when a hacker sends a system an ICMP packet that is bigger than 64KB.1 pointPing of DeathSYN flood On-pathICMP flood4.Question 4Which types of attacks take advantage of communication protocols by sending an overwhelming number of requests to a server? Select all that apply.1 pointICMP flood attackSYN flood attackTCP connection attackTailgating attack
TCP SYN Flood attack uses the three-way handshake mechanism.1. An attacker at system A sends a SYN packet to victim at system B.2. System B sends a SYN/ACK packet to victim A.3. As a normal three-way handshake mechanism system A should send an ACK packet to system B, however, system A does not send an ACK packet to system B. In this case clientB is waiting for an ACK packet from client A.This status of client B is called _________________Select one:a. "full-open"b. "half-closed"c. "half open"d. "xmas-open"
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SYN Flood is a DOS attack in which an attacker deliberately violates the three-way handshake and opens a large number of half-open TCP connections. The signature of attack for SYN Flood contains:Select one:a. The source and destination address having the same valueb. A large number of SYN packets appearing on a network without the corresponding reply packetsc. A large number of SYN packets appearing on a network with the corresponding reply packetsd. The source and destination port numbers having the same value
Fill in the blank: The DoS attack _____ occurs when an attacker repeatedly sends ICMP packets to a network server.1 pointICMP floodSYN floodsmurfon-path
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