b bartleby PortalTelegram WebO Answer - 2022-03-27T020242.36 XO Answer - 2022-03-27T015323.04 x +->O File C:/Users/sid/Downloads/Answer%20-%202022-03-27T020242.369.htmlWhat are the recommendedprocedures for assuring a local areanetwork's resilience andavailability?02:03P Type here to search33°Cへ27-03-202211

Endurance seems to be the ability to recover completely from relapses or other difficulties, or the…

Answered: What are the recommended ocedures for…

Engineering

Computer Science

What are the recommended ocedures for assuring a local a network's resilience and availability?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Using https://wiki.dd-wrt.com/wiki/index.php/Linking_Subnets_with_Static_Routes as a base, modify the scenario for VLSM based subnets given the following information. Site address (CIDR Notation) = 192.168.10.0/24 Subnet Included hosts Number of hosts required Subnet ID(CIDR notation) 1 Computer Labs 1 and 2 110 ? 2 Computer Lab 3 60 ?
An attacker tries to do banner grabbing on a remote web server and executes the following command:$ nmap -sV hackme.com -p 80 He gets the following output:Starting Nmap 7.90 ( http://nmap.org ) at 2020-09-26 22:47 ESTNmap scan report for hackme.com (108.58.137.114)Host is up (0.048s latency).PORT STATE SERVICE VERSION80/tcp open http Apache httpdService detection performed. Please report any incorrect results at http://nmap.org/submit/.Nmap done: 1 IP address (1 host up) scanned in 7.36 seconds What did the hacker accomplish? nmap can’t retrieve the version number of any running remote service. The hacker successfully completed the banner grabbing. The hacker should have used nmap -O host.domain.com. The hacker failed to do banner grabbing as he didn’t get the version of the Apache web server.
4. The text below shows the reply sent from a server in response to an HTTP GET message as captured by Wireshark. HTTP/1.1 200 OK\r\n Date: Fri, 27 Jan 2023 21:23:36 GMT\r\n Server: Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.4.33 mod_perl/2.0.11 Perl/v5.16.3\r\n Last-Modified: Tue, 01 Mar 2016 18:57:50 GMT\r\n ETag: "a5b-52d015789ee9e"\r\n Accept-Ranges: bytes\r\n Content-Length: 2651\r\n Keep-Alive: timeout=5, max=100\r\n Connection: Keep-Alive\r\n Content-Type: text/html; charset=UTF-8\r\n \r\n [HTTP response 1/1] [Time since request: 0.035874000 seconds] [Request in frame: 784] [Request URI: http://gaia.cs.umass.edu/] File Data: 2651 bytes Line-based text data: text/html (68 lines) <html>\n <head>\n <title>Computer Network Research Group - UMass Amherst\n </title>\n </head>\n <body bgcolor="#ffffff">\n More document text follows, though not shown here. Answer the following questions, indicating where in the message above you find the…
1. Persistent HTTP requires?a. 2(round trip times) + file transmission timeb. as little as two RTT for all the referenced objectsc. one file transmission timed. as little as one RTT for all the referenced objects 2. UDP has no connection between client & server?a. RCVR extracts sender IP address and portb. sender explicitly attaches IP destination address and portc. three other answers are incorrectd. no handshaking before sending data 3. A socket in computer networks is correctly defined as?a. A combination of IP address and port number, connected by a "/" symbolb. sender explicitly attaches IP destination address and portc. RCVR extracts from the socket, sender IP address and portd. A combination of IP address and port number, connected by a"." symbol 4. The data link layer provides?a. the functional and procedural means to transfer data between network entities and the means to detect and possibly correct errors that may occur in the link layer.b. the functional and procedural…
2.2-8 A detailed look at an HTTP reply. Suppose now the server sends the following HTTP response message the client: HTTP/1.0 200 OKDate: Wed, 09 Sep 2020 23:46:21 +0000Server: Apache/2.2.3 (CentOS)Last-Modified: Wed, 09 Sep 2020 23:51:41 +0000ETag:17dc6-a5c-bf716880.Content-Length: 418Connection: CloseContent-type: image/html Will the web server close the TCP connection after sending this message?
A new application will be deployed on EC2 instances in private subnets. The application will copy/write some sensitive data from/to an S3 bucket. Company compliance policy requires that the data must not traverse the public internet. Which solution meets the compliance requirement? A.Access the S3 bucket through an VPC end point for S3 B.Access the S3 bucket through a proxy server C.Access the S3 bucket through a NAT Gateway D.Access the S3 bucket through the SSL protected S3 internet endpoint
a) A nonpersistent web page with 13 items will load in ____ ms. RTT=9ms; Object Transmission Time=2*RTT). (ms answer) b) For a persistent connection, what would the computation yield? c) Does the computation incorporate all delays? Give reasons
Consider the following HTTP request message (Note. Cr means carriage return and lf means line feed) GET /cs453/index.html HTTP/1.1<cr><lf> Host: gaia.cs.umass.edu<cr><lf> User-Agent: Mozilla/5.0 ( Windows;U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) <cr><lf> Accept:ext/xml, application/xml, application/xhtml+xml, text /html;q=0.9, text/plain;q=0.8,image/png,*/*;q=0.5 <cr><lf> Accept-Language: en-us,en;q=0.5<cr><lf> Accept-Encoding: zip,deflate<cr><lf> Connection:keep-alive<cr><lf><cr><lf> What is the URL of the document requested by the browser? What version of HTTP is the browser running? Does the browser request a non-persistent or a persistent connection?
PLEASE LOOK AT MY QUESTION CAREFULLY ! PLEASE LOOK AT MY QUESTION CAREFULLY ! PLEASE LOOK AT MY QUESTION CAREFULLY ! the nodejs server code is like this const http = require("http");const url = require('url'); var hostName = '127.0.0.1';var port = 3000; var server = http.createServer(function(req,res){res.setHeader('Content-Type','text/plain');const parsed = url.parse(req.url);const pathname = parsed['pathname'] const queryObject = url.parse(req.url,true).query;let queryValue = queryObject['name'] if(queryValue==null){queryValue=""} if (pathname=="/"){res.end("SUCCESS!")}else if (pathname=="/echo"){res.end("SUCCESS! echo")} else if (pathname=="/foxtrot/:name"){queryValue = queryObject['name'].toString()res.end("SUCCESS! Received "+queryValue+" via foxtrot")}else{res.end("FAILED! Fix your URL.")} }) server.listen(port,hostName,()=>{console.log(`Server running at http://${hostName}:${port}/`);}); ======================== when i enter http://localhost:3000/foxrot/kilo i hope it…
1- A user clicks on the link www.msn.com/index.html. Accordingly, the browser asks the cache server for this page, which is available at the cache from Wed 01 Jun 2017 22:54:43 GMT and it is modified yesterday. Write the HTTP 1.1 conditional GET request/response messages sent/received by the cache server. The answer must include the TCP connection (telnet) command and the necessary headers (if exist).
The text below shows a reply sent from the server in response to a http GET message. What are the first 5 bytes of the document retrieved? HTTP/1.1 200 OK<cr><lf>Date: Tue, 07 Mar 2008 12:39:45GMT<cr><lf>Server: Apache/2.0.52 (Fedora) <cr><lf>Last-Modified: Sat, 10 Dec2005 18:27:46 GMT<cr><lf>ETag: “526c3-f22-a88a4c80”<cr><lf>Accept- Ranges: bytes<cr><lf>Content-Length: 3874<cr><lf> Keep-Alive: timeout=max=100<cr><lf>Connection: Keep-Alive<cr><lf>Content-Type: text/html; charset= ISO-8859-1<cr><lf><cr><lf><!doctype html public “- //w3c//dtd html 4.0 transitional//en”><lf><html><lf> <head><lf> <meta http-equiv=”Content-Type” content=”text/html; charset=iso-8859-1”><lf> <meta name=”GENERATOR” content=”Mozilla/4.79 [en] (Windows NT 5.0; U) Netscape]”><lf> <title>CMPSCI 453 / 591 / NTU-ST550A…
please look at my question !!!! for this nodejs router const http = require("http");const url = require('url'); var hostName = '127.0.0.1';var port = 3000; var server = http.createServer(function(req,res){res.setHeader('Content-Type','text/plain');const parsed = url.parse(req.url);const pathname = parsed['pathname'] const queryObject = url.parse(req.url,true).query;let queryValue = queryObject['name']if(queryValue==null){queryValue=""} if (pathname=="/"){res.end("SUCCESS!")}else if (pathname=="/echo"){res.end("SUCCESS! echo")}else if (pathname=="/foxtrot/:name"){queryValue = queryObject['name'].toString()res.end("SUCCESS! Received "+queryValue+" via foxtrot")}else{res.end("FAILED! Fix your URL.")} }) server.listen(port,hostName,()=>{console.log(`Server running at http://${hostName}:${port}/`);}); -------------- it runs like this picture i wnat to fix it ,when i run http://127.0.0.1:3000/foxtrot/kilo ,it should work and it shows "SUCCESS! Received kilo via foxtrot" how to…