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200-301 · Question #565

Which type of network attack overwhelms the target server by sending multiple packets to a port until the half-open TCP resources of the target are exhausted?

The correct answer is A. SYIM flood. A SYN flood attack overwhelms a target server by rapidly sending TCP SYN requests without completing the handshake, exhausting the server's half-open TCP connection resources.

Submitted by priya_blr· Mar 5, 2026Security Fundamentals

Question

Which type of network attack overwhelms the target server by sending multiple packets to a port until the half-open TCP resources of the target are exhausted?

Options

  • ASYIM flood
  • Breflection
  • Cteardrop
  • Damplification

How the community answered

(43 responses)
  • A
    88% (38)
  • B
    2% (1)
  • C
    2% (1)
  • D
    7% (3)

Why each option

A SYN flood attack overwhelms a target server by rapidly sending TCP SYN requests without completing the handshake, exhausting the server's half-open TCP connection resources.

ASYIM floodCorrect

A SYN flood (assuming 'SYIM flood' is a typo for SYN flood) specifically floods a server with TCP SYN packets without responding to SYN-ACKs, causing the server to exhaust its resources by holding numerous half-open connections.

Breflection

A reflection attack involves an attacker spoofing a victim's IP to bounce traffic off third-party servers, not directly exhausting TCP resources with half-open connections.

Cteardrop

A teardrop attack exploits vulnerabilities in IP fragmentation, causing systems to crash during packet reassembly, which is different from exhausting TCP connection resources.

Damplification

An amplification attack leverages services to send large responses to a spoofed victim IP, increasing traffic volume, but it doesn't specifically target half-open TCP connection tables.

Concept tested: Denial of Service (DoS) attack types (SYN Flood)

Source: https://www.cisco.com/c/en/us/about/security-center/tcp-syn-attacks.html

Topics

#SYN flood#DoS attack#TCP/IP security

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