{"id":1305299,"date":"2023-12-02T11:00:00","date_gmt":"2023-12-02T14:00:00","guid":{"rendered":"https:\/\/www.estrategiaconcursos.com.br\/blog\/?p=1305299"},"modified":"2023-11-18T11:58:49","modified_gmt":"2023-11-18T14:58:49","slug":"protocolos-comunicacao-cnu","status":"publish","type":"post","link":"https:\/\/www.estrategiaconcursos.com.br\/blog\/protocolos-comunicacao-cnu\/","title":{"rendered":"Resumo de Protocolos de Comunica\u00e7\u00e3o para o CNU"},"content":{"rendered":"\n<p>Ol\u00e1, pessoal. Tudo certo? No artigo de hoje veremos um Resumo sobre Protocolos de Comunica\u00e7\u00e3o para o CNU (Concurso Nacional Unificado).<\/p>\n\n\n\n<p>Preparado (a)? Vamos l\u00e1.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conceitos B\u00e1sicos<\/h2>\n\n\n\n<p>Para iniciar resumo sobre Resumo sobre Protocolos de Comunica\u00e7\u00e3o para o CNU (Concurso Nacional Unificado), nada melhor do que ver a defini\u00e7\u00e3o de Protocolo.<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>Protocolo de redes<\/strong>:<\/mark> um conjunto de padr\u00f5es que permite a comunica\u00e7\u00e3o entre equipamentos de uma rede.<\/p>\n\n\n\n<p>Ou seja, podemos dizer que o protocolo \u00e9 o \u201cidioma\u201d da comunica\u00e7\u00e3o na internet. Al\u00e9m disso, \u00e9 important\u00edssimo saber que o <strong>protocolo TCP\/IP \u00e9 o padr\u00e3o da internet<\/strong>.<\/p>\n\n\n\n<p>Ainda, n\u00e3o confunda a defini\u00e7\u00e3o de protocolo com servi\u00e7o.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Protocolo X Servi\u00e7o<\/mark><\/strong><\/p>\n\n\n\n<p><strong>Protocolo:<\/strong> conjunto de regras de comunica\u00e7\u00e3o que podem ser dispostas em camadas<\/p>\n\n\n\n<p><strong>Servi\u00e7o:<\/strong> fun\u00e7\u00f5es que podem ser fornecidas para a camada superior por meio de uma interface<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Modelo OSI\/ISO e Arquitetura TCP\/IP<\/h2>\n\n\n\n<p>Dando continuidade ao Protocolos de Comunica\u00e7\u00e3o para o CNU (Concurso Nacional Unificado), vamos conhecer o <strong>modelo te\u00f3rico<\/strong> que padroniza as fun\u00e7\u00f5es de comunica\u00e7\u00e3o.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Modelo OSI\/ISO:<\/mark><\/strong> um modelo de refer\u00eancia para conex\u00e3o e projetos de sistemas de redes que se baseia em camadas sobrepostas<\/p>\n\n\n\n<p>OK, agora vejamos as camadas e os principais protocolos respectivos.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\"><strong>Camada F\u00edsica:<\/strong> <\/mark>respons\u00e1vel por <strong>definir as especifica\u00e7\u00f5es<\/strong> el\u00e9tricas e f\u00edsicas da conex\u00e3o de dados<\/li>\n<\/ul>\n\n\n\n<p><strong>Protocolo:<\/strong> USB, DSL<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Camada de Enlace:<\/mark> <\/strong>respons\u00e1vel por <strong>organizar os dados (bits) em frames (ou quadros)<\/strong> e por estabelecer uma <strong>conex\u00e3o n\u00f3-a-n\u00f3<\/strong> entre dois <strong>dispositivos f\u00edsicos<\/strong> que compartilham o <strong>mesmo meio f\u00edsico.<\/strong><\/li>\n<\/ul>\n\n\n\n<p><strong>Protocolo:<\/strong> Bluetooth, Wi-Fi.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Camada de Rede<\/mark>:<\/strong> respons\u00e1vel pela <strong>entrega de pacotes<\/strong> individuais de dados desde o host (m\u00e1quina) <strong>de origem at\u00e9 o host de destino<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p><strong>Protocolo:<\/strong> IP, ICMP, ARP, NAT.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Camada de Transporte:<\/mark><\/strong> respons\u00e1vel por <strong>organizar dados em segmentos<\/strong> e que eles cheguem ao destino livre de erros.<\/li>\n<\/ul>\n\n\n\n<p><strong>Protocolo:<\/strong> TCP, UDP.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Camada de Sess\u00e3o<\/mark>:<\/strong> respons\u00e1vel por permitir que duas ou mais aplica\u00e7\u00f5es em computadores diferentes possam abrir, usar e fechar uma conex\u00e3o (sess\u00e3o)<\/li>\n<\/ul>\n\n\n\n<p><strong>Protocolo:<\/strong> NETBIOS.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\"><strong>Camada de Apresenta\u00e7\u00e3o:<\/strong> <\/mark>\u00e9 respons\u00e1vel pela <strong>tradu\u00e7\u00e3o<\/strong>, compress\u00e3o e criptografia dos dados entre sistemas.<\/li>\n<\/ul>\n\n\n\n<p><strong>Protocolo:<\/strong> AFP, ICA, LPP, NCP<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\"><strong>Camada de Aplica\u00e7\u00e3o:<\/strong> <\/mark>habilita o usu\u00e1rio, seja ele humano ou software, a acessar a rede.<\/li>\n<\/ul>\n\n\n\n<p><strong>Protocolo:<\/strong> HTTP, SMTP, FTP, POP3, IMAP, DNS.<\/p>\n\n\n\n<p>Perfeito, conhe\u00e7amos agora o modelo padr\u00e3o (n\u00e3o te\u00f3rico) da internet.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Arquitetura TCP\/IP:<\/mark><\/strong> conjunto padr\u00e3o de protocolos da Internet<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"462\" height=\"265\" src=\"https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174749\/image-153.png\" alt=\"Resumo de Protocolos de Comunica\u00e7\u00e3o para o CNU\" class=\"wp-image-1305300\" srcset=\"https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174749\/image-153.png 462w, https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174749\/image-153-300x172.png 300w, https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174749\/image-153-150x86.png 150w\" sizes=\"auto, (max-width: 462px) 100vw, 462px\" \/><\/figure>\n\n\n\n<p>Ainda, vejamos a compara\u00e7\u00e3o dos dispositivos com as respectivas camadas.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"253\" src=\"https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174800\/image-154.png\" alt=\"Resumo de Protocolos de Comunica\u00e7\u00e3o para o CNU\" class=\"wp-image-1305301\" srcset=\"https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174800\/image-154.png 886w, https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174800\/image-154-300x86.png 300w, https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174800\/image-154-768x219.png 768w, https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174800\/image-154-610x174.png 610w, https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174800\/image-154-150x43.png 150w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Protocolos<\/h2>\n\n\n\n<p>Para finalizar o Protocolos de Comunica\u00e7\u00e3o para o CNU (Concurso Nacional Unificado), vamos focar naquilo que mais cai em prova, ent\u00e3o vamos estudar os principais protocolos das seguintes camadas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Camada de Rede<\/li>\n\n\n\n<li>Transporte<\/li>\n\n\n\n<li>Aplica\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<p>Vamos l\u00e1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Protocolos da Camada de Rede<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>IP<\/strong> <\/mark>(Internet Protocol): protocolo de distribui\u00e7\u00e3o de pacotes <strong>n\u00e3o confi\u00e1vel <\/strong>[n\u00e3o garante entrega], de <strong>melhor esfor\u00e7o<\/strong> e <strong>sem conex\u00e3o<\/strong>, que forma a base da internet.<\/li>\n<\/ul>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\"><strong>IPv4:<\/strong> <\/mark>32 bits divididos em 4 octetos \u2013> em decimal \u00e9 de 0 a 255<\/p>\n\n\n\n<p><strong>Regras:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"170\" src=\"https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174812\/image-155.png\" alt=\"Resumo de Protocolos de Comunica\u00e7\u00e3o para o CNU\" class=\"wp-image-1305302\" srcset=\"https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174812\/image-155.png 886w, https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174812\/image-155-300x58.png 300w, https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174812\/image-155-768x147.png 768w, https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174812\/image-155-610x117.png 610w, https:\/\/dhg1h5j42swfq.cloudfront.net\/2023\/11\/10174812\/image-155-150x29.png 150w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><\/figure>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">IPv6 <\/mark><\/strong>(IP Vers\u00e3o 6): 128 Bits = 32 d\u00edgitos hexadecimais<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">ICMP <\/mark><\/strong>(Internet Control Message Protocol): <strong>protocolo auxiliar do protocolo IP<\/strong>, pois apresenta mecanismos integrados para <strong>notificar erros ao remetente dos dados<\/strong>.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>ARP<\/strong> <\/mark>(Address Resolution Protocol): <strong>convers\u00e3o de endere\u00e7os l\u00f3gicos<\/strong> (endere\u00e7o IP) <strong>em endere\u00e7os f\u00edsicos<\/strong> (endere\u00e7o MAC) &#8211; ex. IP: 172.22.4.1 &lt;-> Endere\u00e7o f\u00edsico: 00-00-0C-07-cv-05<\/li>\n<\/ul>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-cyan-bluish-gray-color\">N\u00e3o confunda &#8211; DNS X ARP<\/mark><\/strong><\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">D<\/mark><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">N<\/mark><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">S<\/mark>:<\/strong> URL (<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">n<\/mark><\/strong>ome) &lt;-&gt; endere\u00e7o IP<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">ARP<\/mark>:<\/strong> endere\u00e7o IP &lt;-&gt; endere\u00e7o MAC<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Protocolos da Camada de Transporte<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>TCP<\/strong> <\/mark>(Transmission Control Protocol): protocolo <strong>orientado \u00e0 conex\u00e3o e confi\u00e1vel<\/strong> que faz o <strong>controle de congestionamento\/fluxo<\/strong> e ainda permite a <strong>comunica\u00e7\u00e3o fim-a-fim<\/strong>. &#8211;<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">> tolera atrasos, mas n\u00e3o perdas (confi\u00e1vel), logo \u00e9 utilizado em e-mail, navega\u00e7\u00e3o e etc.<\/mark><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>UDP<\/strong> <\/mark>(User Datagram Protocol): fornece um servi\u00e7o de entrega <strong>sem conex\u00e3o<\/strong> e <strong>n\u00e3o-confi\u00e1vel<\/strong> (sem controle de fluxo e de congestionamento) &#8211;<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">> tolerada perdas (dados perdidos n\u00e3o s\u00e3o retransmitidos), mas n\u00e3o tolera atrasos (+ r\u00e1pido), logo \u00e9 muito utilizado em VoIP, streaming e etc.<\/mark><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Protocolos da Camada de Aplica\u00e7\u00e3o<\/h3>\n\n\n\n<p>Vamos finalizar nos Protocolos da Camada de Aplica\u00e7\u00e3o, realizando algumas classifica\u00e7\u00f5es para fins did\u00e1ticos.<\/p>\n\n\n\n<p><strong>E-mail:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>SMTP<\/strong> <\/mark>(Simple Mail Transfer Protocol): envio de e-mail e comunica\u00e7\u00e3o entre clientes. -> o protocolo MIME completa o SMTP para possibilitar envio de diferentes formados (ex. v\u00eddeo)<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">POP3<\/mark><\/strong>: <strong>recebimento<\/strong> de msg de e-mail, <strong>necess\u00e1rio baixar<\/strong> para o PC local<strong> <\/strong>-&gt; \u201cQuem recebe muito e-mail \u00e9 POP\u201d<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">IMAP<\/mark><\/strong>: <strong>recebimento<\/strong> de msg de e-mail, <strong>n\u00e3o \u00e9 necess\u00e1rio baixar<\/strong> (fica armazenada no servidor do e-mail \u2013 ex. Outlook) -&gt; IMAP moderninho;<\/li>\n<\/ul>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-cyan-bluish-gray-color\">Bizu<\/mark><\/strong>:<br \/><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">S<\/mark><\/strong>MTP: enviar (<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">s<\/mark><\/strong>a\u00edda)<br \/>POP3: copiar<br \/>IMAP: acessar<\/p>\n\n\n\n<p><strong>Protocolo web<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>HTTP<\/strong> <\/mark>(HyperText Transfer Protocol): respons\u00e1vel pela transfer\u00eancia, formata\u00e7\u00e3o e apresenta\u00e7\u00e3o de p\u00e1ginas web com conte\u00fado multim\u00eddia.<\/li>\n\n\n\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">HTTP<\/mark><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">S<\/mark><\/strong>: varia\u00e7\u00e3o do protocolo HTTP que utiliza mecanismos de <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">s<\/mark><\/strong>eguran\u00e7a (conex\u00e3o criptografada), utiliza protocolo <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">S<\/mark><\/strong>SL\/TL<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">S<\/mark><\/strong> -ex. http<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">s<\/mark><\/strong>:\/\/www.google.com<\/li>\n<\/ul>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-cyan-bluish-gray-color\">HTTP X HTML<br \/><\/mark>HTT<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">P<\/mark><\/strong>: <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">P<\/mark><\/strong>rotocolo<br \/>HTM<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">L<\/mark><\/strong>: <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">L<\/mark><\/strong>inguagem<\/p>\n\n\n\n<p><strong>Transfer\u00eancia de arquivo<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>FTP<\/strong> <\/mark>(File Transfer Protocol): Possibilita a <strong>transfer\u00eancias de arquivos <\/strong>entre um Cliente FTP e um Servidor FTP <strong>-> Usu\u00e1rio identificado ou n\u00e3o<\/strong><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>TFTP<\/strong> <\/mark>(<strong>FTP Trivial<\/strong>): Varia\u00e7\u00e3o do FTP, com maior velocidade, e menos confiabilidade.<\/li>\n<\/ul>\n\n\n\n<p><strong>Acesso remoto<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>Telnet<\/strong> <\/mark>(Terminal Emulator): permite obter um <strong>acesso remoto<\/strong> a um computador, <strong>baixa prote\u00e7\u00e3o<\/strong> (n\u00e3o \u00e9 criptografado)<\/li>\n\n\n\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">S<\/mark><\/strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>SH<\/strong> <\/mark>(Secure Shell): protocolo para <strong>login remoto<\/strong> de <strong><u>forma <mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">s<\/mark>egura<\/u><\/strong> &#8211; s\u00e3o criptografados<\/li>\n<\/ul>\n\n\n\n<p><strong>Outros<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">DHCP <\/mark><\/strong>(Dynamic Host Configuration Protocol): permite a <strong>aloca\u00e7\u00e3o<\/strong> est\u00e1tica ou din\u00e2mica de <strong>endere\u00e7os l\u00f3gicos<\/strong> de forma manual ou <strong>autom\u00e1tica<\/strong>.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>DNS<\/strong> <\/mark>(Domain Name System): DNS \u00e9 utilizado para <strong>traduzir endere\u00e7os<\/strong> de <strong>dom\u00ednios da Internet (URL) em endere\u00e7os IP<\/strong> e vice-versa &#8211; ex. google.com \u00a0&lt;&#8212;-> 216.58.211.14<\/li>\n<\/ul>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-cyan-bluish-gray-color\">Bizu:<\/mark> DNS<\/strong> \u2013 <strong>D<\/strong>\u00e1 <strong>N<\/strong>ome ao <strong>S<\/strong>ite<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Considera\u00e7\u00f5es Finais<\/h2>\n\n\n\n<p>Pessoal, chegamos ao final do artigo sobre Resumo sobre Protocolos de Comunica\u00e7\u00e3o para o CNU (Concurso Nacional Unificado), espero que o artigo tenha colaborado com seu estudo.<\/p>\n\n\n\n<p>\u00c9 importante salientar que esse assunto \u00e9 bem \u201cchatinho\u201d, contendo muitos detalhes, assim n\u00e3o deixe de estudar por nossas aulas na \u00edntegra, al\u00e9m de treinar por meio do <a href=\"https:\/\/www.estrategiaconcursos.com.br\/cursosPorConcurso\/sistema-de-questoes\/\">nosso sistema de quest\u00f5es<\/a>.<\/p>\n\n\n\n<p>Gostou do artigo? Siga-nos<\/p>\n\n\n\n<p class=\"has-text-align-center\"><a href=\"https:\/\/www.instagram.com\/resumospassarin\/\">https:\/\/www.instagram.com\/resumospassarin\/<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\" id=\"h-quer-saber-tudo-sobre-concursos-previstos-confira-nossos-artigos\">Quer saber tudo sobre concursos previstos?<br \/>Confira  nossos artigos!<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.estrategiaconcursos.com.br\/blog\/concursos-abertos\/\" target=\"_blank\" rel=\"noreferrer noopener\">Concursos abertos<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.estrategiaconcursos.com.br\/blog\/concursos-2023\/\" target=\"_blank\" rel=\"noreferrer noopener\">Concursos 2023<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.estrategiaconcursos.com.br\/blog\/concursos-2024\/\" target=\"_blank\" rel=\"noreferrer noopener\">Concursos 2024<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\" id=\"cursos-assinatura\">Quer estudar para concurso do CNU?<\/h2>\n\n\n\n<p>Prepare-se com o melhor material e com quem mais aprova em Concursos P\u00fablicos em todo o pa\u00eds!<\/p>\n\n\n\n<div class=\"container\" id=\"boxes\">\n  <div class=\"row\">\n    <div class=\"col-sm\">\n      <div class=\"estrategia\" id=\"box-assinatura\">\n        <h3 class=\"titulo-assinatura\">Assinatura de Concursos<\/h3>\n        <p class=\"subtitulo-assinatura\">Assinatura de 1 ano ou 2 anos<\/p>\n        <div class=\"box-botao\">\n          <a class=\"btn-assinatura\" target=\"_blank\" href=\"https:\/\/www.estrategiaconcursos.com.br\/assinaturas\/\" role=\"button\" rel=\"noopener noreferrer\">ASSINE AGORA<\/a>\n        <\/div>\n      <\/div>\n      \n    <\/div><\/div><\/div>\n\n\n\n<div class=\"container\" id=\"boxes\">\n  <div class=\"row\">\n\n    <div class=\"col-sm\">\n      <div class=\"banner-estrategia\" id=\"box-assinatura\">\n        <h3 class=\"titulo-assinatura\">Cursos para o CNU<\/h3>\n        <p class=\"subtitulo-assinatura\">Conhe\u00e7a os cursos<\/p>\n        <div class=\"box-botao\">\n          <a class=\"btn-assinatura\" target=\"_blank\" href=\"https:\/\/www.estrategiaconcursos.com.br\/cursosPorConcurso\/concurso-nacional-unificado-cnu\/\" role=\"button\" rel=\"noopener noreferrer\">Conhe\u00e7a mais<\/a>\n        <\/div>\n      <\/div>\n     \n    <\/div>\n\n  <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Ol\u00e1, pessoal. Tudo certo? No artigo de hoje veremos um Resumo sobre Protocolos de Comunica\u00e7\u00e3o para o CNU (Concurso Nacional Unificado). Preparado (a)? Vamos l\u00e1. Conceitos B\u00e1sicos Para iniciar resumo sobre Resumo sobre Protocolos de Comunica\u00e7\u00e3o para o CNU (Concurso Nacional Unificado), nada melhor do que ver a defini\u00e7\u00e3o de Protocolo. Protocolo de redes: um [&hellip;]<\/p>\n","protected":false},"author":1763,"featured_media":1305306,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"post_tipo":"article","footnotes":""},"categories":[1,220184],"tags":[],"tax_estado":[219963],"class_list":["post-1305299","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cursos-e-concursos","category-engenharias-e-ti","tax_estado-concursos-federais"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Resumo de Protocolos de Comunica\u00e7\u00e3o para o CNU<\/title>\n<meta name=\"description\" content=\"Veja neste artigo o Resumo esquematizado sobre Protocolos de Comunica\u00e7\u00e3o para o CNU (Concurso Nacional Unificado).\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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