A user complaint about one of the websites obtaining a $503$: Service Unavailable message is being investigated by a security analyst. To check if the web server is up and running, the analyst runs the netstat$-$an command. The following outcomes are presented to the analyst: TCP $100\mathrm{.}10\mathrm{.}52\mathrm{.}255$: $80192\mathrm{.}168\mathrm{.}2\mathrm{.}112$: $60973$ TIME WAIT TCP $100\mathrm{.}10\mathrm{.}52\mathrm{.}255$: $80192\mathrm{.}168\mathrm{.}2\mathrm{.}112$: $60974$ TIME WAIT TCP $100\mathrm{.}10\mathrm{.}52\mathrm{.}255$: $80192\mathrm{.}168\mathrm{.}2\mathrm{.}112$: $60975$ TIME WAIT TCP $100\mathrm{.}10\mathrm{.}52\mathrm{.}255$: $80192\mathrm{.}168\mathrm{.}2\mathrm{.}112$: $60976$ TIME WAIT TCP $100\mathrm{.}10\mathrm{.}52\mathrm{.}255$: What type of an attack is this?

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Buffer overflow

Domain hijacking

Denial of Service

ARP poisoning