Make a map → from source to destination there are many routes that can be taken within the map. Connect the 5 routers → name it A (has 3 connections), B (has 2 connections), C (has 2 connections), D (has 2 connections), and E (has 1 connection). IP addressing: LAN A1 A2 28200683 A3 B1 B2 C1 C2 D1 D2 E1 Network Address 192.168.1.0 192.168.2.0 192.168.3.0 192.168.10.0 192.168.11.0 192.168.20.0 192.168.21.0 192.168.32.0 192.168.33.0 192.168.40.0 Subnet Mask /24

Make a map → from source to destination there are many routes that can be taken within the map. Connect the 5 routers → name it A (has 3 connections), B (has 2 connections), C (has 2 connections), D (has 2 connections), and E (has 1 connection). IP addressing: LAN A1 A2 28200683 A3 B1 B2 C1 C2 D1 D2 E1 Network Address 192.168.1.0 192.168.2.0 192.168.3.0 192.168.10.0 192.168.11.0 192.168.20.0 192.168.21.0 192.168.32.0 192.168.33.0 192.168.40.0 Subnet Mask /24

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

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Q1: Draw a diagram showing the HTTP protocol stack associated with web browsing. Include in your diagram a stack of web client, name server and a web server. Also include the directions of HTTP request/response messages and DNS query response messages.
In the HTTP protocol, what is the primary different between a GET request and a PUT request? GET requests send out TCP packets whereas PUT requests send out UDP packets. O GET requests are for HTML (and CSS/JavaScript) source files only while PUT requests are for other objects such as images, audio, and video. O GET requests place parameters into the URL while PUT requests place parameters in the HTTP request body. O GET requests are for downloading data and PUT requests are for uploading data.
Assume that there is a system call connect). This system call takes an IP address as an argument and then creates a TCP connection with that IP address. For example, connect(10.10.10.10) will create a TCP connection with the machine that has the IP address 10.10.10.10. Now, imagine that for the ptrace sandbox, the connect() system call is blocked for a known bad IP address 20.20.20.20. However, the attacker wants to connect to this blocked IP address (the attacker wants a TCP connection to 20.20.20.20, which is not allowed in the policy). It is also given that the connect() system call is allowed for the IP address 1.1.1.1. What can the attacker do to bypass this restriction and trick the ptrace sandbox (and the Operating System) Into running the connect() system call with the argument 20.20.20.207
SMTP (Simple Mail Transfer Protocol) is the standard protocol for transferring mail between hosts. A TCP connection is set up between a user agent and a server program. The server listens on TCP port 25 for incoming connection requests. The user end of the connection is on a TCP port number above 1023. You have defined the packet filter rule set shown in the table below. These rules permit and/or deny inbound and outbound traffic between the user agent and the mail server. Describe the purpose of each packet filter rule in the table. Rule Direction Source Address Destination Address Protocol Destination Port Action A2 In External Internal TCP 25 Permit B2 Out Internal External TCP > 1023 Permit C2 Out Internal External TCP 25 Permit D2 In External Internal TCP > 1023 Permit E2 Either Any Any Any Any Deny
Q: Imagine a Web server that maintains a table in which client IP addresses are mapped to the most recently accessed Web pages. When a client connects to the server, the server looks up the client in its table, and if found, returns the registered page. Is this server stateful or stateless?
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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…
Can someone please help me with this? I'll give a thumb up to thank for your time.As I'm reviewing for my upcoming exam, I really need an answer from an expert in the field. Please do not send me an answer from chatGPT. I've got enough of that, so please be helpful.
Https is a protocol used to secure websites from being tampered with by other parties without proper authorization. it bridges the gap between sender and receiver.Using protocols like secure socket layer/TLS, HTTPS encrypts data sent over the internet, making it unreadable to anybody who shouldn't have it.This prevents a "man in the middle" assault on the system.Such assaults intercept messages before they reach their intended recipient.It then transmits the revised information to the user.It guarantees the server's authenticity, too.
IKT204-G H21, Routing tables 13 In this assignment, the objective is to determine the correct forwarding link given the routing table below. A router has the following entries in its forwarding table: Link1: 00001010.10101000.00000100.00000000/22 Link2: 00001010.10101000.00000110.00000000/23 Link3: 00001010.10101000.00000111.00000000/24 Link4: 00001010.10101000.00000000.00000000/16 Link5: All other addresses Assume the router receives IPV4 datagrams destined to the following addresses and decide which link they are forwarded to: A: 00001010.11111000.00000101.00001111 B: 00001010.10101000.00000111.00011000 C: 00001010.10101000.00000011.01010000 D: 00001010.10101000.00000111.11111110 E: 00001010.10101000.00000110.10000010 On which link will they be forwarded? A: link B: link C: link D: link E: link
Cloud Computing:
Take a look at two real-world HTTP response codes on the MIT website, for instance, and consider how they relate to the HTTP commands they are linked with (s).