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0000000..bad06c7 --- /dev/null +++ b/1/ISO/assignments/t5-ej1/t5-ej1.tex @@ -0,0 +1,193 @@ +\documentclass[12pt,a4paper]{article} +\usepackage[spanish]{babel} +\usepackage{hyperref} +\usepackage{graphicx} +\usepackage{subcaption} +\usepackage{tikz} +\usetikzlibrary{shapes,positioning,calc} + +\title{Tema V Ejercicio I: DNS} +\author{Nicolás A. Ortega Froysa} + +\begin{document} +\maketitle +\pagebreak +\tableofcontents +\pagebreak +\section{Hoja De Control Del Documento} +\begin{table}[h!] + \centering + \caption{Documento/Archivo} + \label{tab:document} + \begin{tabular}{|l|c|l|c|} + \hline + {\bf Fecha Última Modificación} & \the\day/\the\month/\the\year & + {\bf Versión/Revisión} & v01r02 \\ \hline + {\bf Fecha Creación} & 5/1/2022 & \hfill & \hfill \\ \hline + {\bf Fecha Finalización} & \the\day/\the\month/\the\year & \hfill & + \hfill \\ \hline + \end{tabular} +\end{table} + +\begin{table}[h!] + \centering + \caption{Registro De Cambios} + \label{tab:registro-cambios} + \begin{tabular}{|c|c|c|} + \hline + {\bf Versión/Revisión} & {\bf Página(s)} & {\bf Descripción} \\ + \hline + v01r01 & Todas & Creación y elaboración del documento. \\ \hline + v01r02 & 5 & Completar apartado (c). \\ \hline + \end{tabular} +\end{table} + +\begin{table}[h!] + \centering + \caption{Autores Del Documento} + \label{tab:autores} + \begin{tabular}{|c|c|} + \hline + {\bf Apellidos, Nombre} & {\bf Curso} \\ \hline + Ortega Froysa, Nicolás Andrés & 1 \\ \hline + \end{tabular} +\end{table} + +\begin{table}[h!] + \centering + \begin{tabular}{|p{4cm}|p{4cm}|p{4cm}|} + \hline + {\bf Preparado} & {\bf Revisado} & {\bf Aprobado} \\ \hline + Ortega Froysa, Nicolás Andrés & \hfill & \hfill \\ \hline + \end{tabular} +\end{table} + +\pagebreak + +\begin{table}[h!] + \centering + \begin{tabular}{|c|c|c|} + \hline + {\bf Nombre Dominio} & {\bf Protocolo} & {\bf Dirección IP} \\ \hline + www.cv-cep.ceuandalucia.es & HTTP & 150.214.115.75 \\ \hline + mail.cv-cep.ceuandalucia.es & SMTP & 150.214.100.43 \\ \hline + dns\_info.cv-cep.ceuandalucia.es & DNS & 150.214.7.101 \\ \hline + dns1.finantial.com & DNS & 138.17.117.4 \\ \hline + www.finantial.com & HTTP & 138.17.117.15 \\ \hline + ftp.finantial.com & FTP & 138.17.117.7 \\ \hline + pppserver.sports.com & Streaming & 146.10.158.4 \\ \hline + dns\_sports.sports.com & DNS & 146.10.158.16 \\ \hline + servidor\_dns1.es & DNS & 100.100.102.100 \\ \hline + dns\_server1.com & DNS & 99.99.99.99 \\ \hline + onix.ceuandalucia.es & DNS & 150.214.186.69 \\ \hline + \end{tabular} + \caption{Tabla de nombres de dominio.} +\end{table} + +\noindent +{\bf a. Represente el espacio de nombres de dominio en una estructura +arborescente.} + +\hfill + +\begin{tikzpicture}[sibling distance=12em, + every node/.style={draw,align=center}, + root/.style={fill=green!20}, + tld/.style={fill=blue!20}, + branch/.style={shape=ellipse}, + leaf/.style={shape=rectangle,fill=yellow!20}, + level 2/.append style={sibling distance=8em}, + level 3/.append style={sibling distance=4em}] + \node[branch,root] {•} + child { node[branch,tld] {com} + child { node[branch] {finantial} + child { node[leaf] {www} } + child { node[leaf] {ftp} } + } + child { node[branch] {sports} + child { node[leaf] {pppserver} } + } + } + child { node[branch,tld] {es} + child { node[branch] {ceuandalucia} + child { node[branch] {cv-cep} + child { node[leaf] {mail} } + child { node[leaf] {www} } + } + } + }; +\end{tikzpicture} + +\hfill + +\noindent +{\bf b. ¿Cuántas zonas DNS existen? Si hay servidores DNS, señale sus tipos y +sus direcciones IP.} + +Existen en esta red siete zonas DNS distintas. Los servidores DNS serían de los +tipos siguientes: + +\begin{itemize} + \item {\bf Raíz:} {\em desconocido} + \item {\bf TLD:} + \begin{itemize} + \item {\tt dns\_server1}: 99.99.99.99 + \item {\tt servidor\_dns1}: 100.100.102.100 + \end{itemize} + \item {\bf Autoritativo:} + \begin{itemize} + \item {\tt onix}: 150.214.186.69 + \item {\tt dns\_info}: 150.214.7.101 + \item {\tt dns1}: 138.17.117.4 + \item {\tt dns\_sports}: 146.10.158.16 + \end{itemize} +\end{itemize} + +\noindent +{\bf c. Un PC que tiene la dirección IP 102.73.18.14 quiere acceder a +www.cv-cep.ceuandalucia.es. i) Represente gráficamente las peticiones y +respuestas DNS que ocurren si la búsqueda es iterativa; ii) ¿Qué información +almacena el servidor DNS local en su caché?; iii) ¿Y la caché del servidor DNS +local del otro extremo?} + +\hfill + +\begin{tikzpicture}[ + every node/.style={align=center,fill=white!20}, + comp/.style={shape=rectangle,draw}] + \node[comp] (root) {Raíz (•)}; + \node[comp,below=3em of root] (es) {es}; + \node[comp,below=3em of es] (ceuandalucia) {ceuandalucia}; + \node[comp,below=3em of ceuandalucia] (cv-cep) {cv-cep}; + \node[comp,left=20em of {$(root)!0.5!(cv-cep)$}] (lclDNS) {DNS Local}; + \node[comp,below=3em of lclDNS] (PC) {PC}; + \draw[-stealth] (PC) to[out=110, in=250] node {1} (lclDNS); + \draw[-stealth] (lclDNS) to[out=40, in=170] node {2} (root); + \draw[stealth-] (lclDNS) to[out=25, in=185] node {3} (root); + \draw[-stealth] (lclDNS) to[out=20, in=175] node {4} (es); + \draw[stealth-] (lclDNS) to[out=5, in=185] node {5} (es); + \draw[-stealth] (lclDNS) to[out=0, in=170] node {6} (ceuandalucia); + \draw[stealth-] (lclDNS) to[out=-10, in=180] node {7} (ceuandalucia); + \draw[-stealth] (lclDNS) to[out=-20, in=170] node {8} (cv-cep); + \draw[stealth-] (lclDNS) to[out=-30, in=180] node {9} (cv-cep); + \draw[stealth-] (PC) to[out=70, in=300] node {10} (lclDNS); +\end{tikzpicture} + +\hfill + +El servidor de DNS local mantendrá (por un tiempo limitado) las direcciones de +todos los servidores DNS que haya visitado a lo largo de este proceso (i.e.\ es, +ceuandalucia, etc.). Por el otro extremo, no se guardará nada, ya que sólo +tienen que conocer aquellos ordenadores directamente inferiores a ellos (e.g.\ +es tan sólo tiene que conocer ceuandalucia, no www). + +\pagebreak + +\section{Derechos de Autor y Licencia} +\noindent +Copyright \copyright\ \the\year\ Nicolás A. Ortega Froysa + \\ +Este documento se distribuye bajo los términos y condiciones de la licencia +Creative Commons Attribution No Derivatives 4.0 International. + +\end{document} diff --git a/1/ISO/assignments/t5-ej1/t5-ej1.toc b/1/ISO/assignments/t5-ej1/t5-ej1.toc new file mode 100644 index 0000000..2eb1304 --- /dev/null +++ b/1/ISO/assignments/t5-ej1/t5-ej1.toc @@ -0,0 +1,3 @@ +\babel@toc {spanish}{}\relax +\contentsline {section}{\numberline {1}Hoja De Control Del Documento}{3}{section.1}% +\contentsline {section}{\numberline {2}Derechos de Autor y Licencia}{6}{section.2}%