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a) ERRADO Snort is a free and open source network intrusion prevention system (NIPS) and network intrusion detection system (NIDS). [ https://en.wikipedia.org/wiki/Snort_(software) ]
b) ERRADO Dispensa comentários.
c) ERRADO Nessus is a proprietary comprehensive vulnerability scanner which is developed by Tenable Network Security. It is free of charge for personal use in a non-enterprise environment. [ https://en.wikipedia.org/wiki/Nessus_(software) ]
d) CERTO OpenNMS is a free and open-source enterprise grade network monitoring and network management platform. [ https://en.wikipedia.org/wiki/OpenNMS ]
e) ERRADO Wireshark is a free and open source packet analyzer. [ https://en.wikipedia.org/wiki/Wireshark ]
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Gabarito D
O openNMS é um software livre(open source) para gerenciamento de redes, principalmente para camada de aplicação.
É desenvolvido em java, utiliza banco de dados postgresql e esta atualmente na versão 1.8.0, com pacotes para os seguintes sistema operacionais:
RedHat, Mandriva, Deb , Mac OS X e Windows.
"Retroceder Nunca Render-se Jamais !"
Força e Fé !
Fortuna Audaces Sequitur !
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OpenNMS usa, entre outras fontes de dados, o protocolo SNMP.
https://en.wikipedia.org/wiki/Simple_Network_Management_Protocol
SNMP is an Internet-standard protocol for collecting and organizing information about managed devices on IP networks and for modifying that information to change device behavior.