Which are two denial-of-service attacks? (Choose two.)

TCP connections are a fundamental part of network communication, not an attack type itself, although specific attacks like SYN floods exploit TCP connection establishment to cause DoS.

The ping of death is a classic denial-of-service attack where an attacker sends a malformed or oversized ICMP echo request packet to a target, causing the system to crash or become unresponsive upon processing it.

A man-in-the-middle attack involves an attacker intercepting and potentially altering communication between two parties, primarily focusing on confidentiality and integrity, not directly on service availability.

Code Red was a computer worm that exploited vulnerabilities in Microsoft IIS, primarily for propagation and defacing websites; while it could incidentally cause DoS due to resource consumption, it's categorized as a worm, not a general DoS attack type.

UDP flooding is a denial-of-service attack that overwhelms a target system or network with a large volume of UDP (User Datagram Protocol) packets, consuming bandwidth and system resources, thereby making legitimate services unavailable.