Use the Wireshark packet list display window, shown below, to answer the following question.---| Source | Destination | Protocol | Info ||-------------|---------------|----------|-----------------------------------------------------|| 192.168.1.5 | 204.126.133.64| HTTP | GET /phpadmin/js/keyhandler.js HTTP/1.0 || 192.168.1.5 | 204.126.133.64| HTTP | GET /myadmin/js/keyhandler.js HTTP/1.0 || 192.168.1.5 | 204.126.133.64| HTTP | GET /phpmyadmin/js/keyhandler.js HTTP/1.0 |---What type of server is 204.126.133.64 which is the object of the probe/attack? Hint: the server type must be derived from its role or function.- [ ] Web Server- [ ] Internet Server- [ ] DNS Server- [ ] Windows 7 Server

The fundamental occupation of a web server is to show site content through putting away, handling and conveying pages to clients. Other than HTTP, web servers likewise support SMTP (Simple Mail Transfer Protocol) and FTP (File Transfer Protocol), utilized for email, record move and capacity. 204.126.133.64 server is :- option (a) is correct. web server

Engineering

Computer Science

Use the Wireshark packet list display window, shown below, to answer the following question. Source Destination Protocol Info 192.168.1.5 192.168.1.5 204.126.133.64 204.126.133.64 HTTP GET /phpadmin/js/keyhandler.js HTTP/1. GET /myadmin/js/keyhandler.js HTTP/1.0 GET /phpmyadmin/js/keyhandler.js HTTP/: HTTP 192.168.1.5 204.126.133.64 HTTP What type of server is 204.126.133.64 which is the object of the probe/attack? hint: the server type must be derived from its role or function. Web Server O Internet Server DNS Server Windows 7 Server

Use the Wireshark packet list display window, shown below, to answer the following question. Source Destination Protocol Info 192.168.1.5 192.168.1.5 204.126.133.64 204.126.133.64 HTTP GET /phpadmin/js/keyhandler.js HTTP/1. GET /myadmin/js/keyhandler.js HTTP/1.0 GET /phpmyadmin/js/keyhandler.js HTTP/: HTTP 192.168.1.5 204.126.133.64 HTTP What type of server is 204.126.133.64 which is the object of the probe/attack? hint: the server type must be derived from its role or function. Web Server O Internet Server DNS Server Windows 7 Server

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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A network system has 4 protocol layers. Applications generate messages of length M bytes. At each of the layers, an h-byte header is added. What fraction of the network bandwidth is filled with headers? Select one: a. 3h/(3h+M) b. M/(3h+M) c. M/(4h+M) d. 4h/(4h+M)
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Please solve it correctly and please provide explanation of your answers. Please answer parts g, h and i. A PC and a Web Server are communicating over a TCP connection. The PC had started the three way handshake with the initial sequence number of 3069 . The Web Server's initial sequence number is 4830 . The window size of the PC is 815 bytes and the window size of the Web Server is 463 bytes. Using the third TCP handshake ack segment the PC sends the http request of the size 396 bytes to the Web Server. Then the Web Server answers with 3 segments containing the requested data. The first segment size is 42 bytes and the second segment size is 276 bytes and the third segment size is 146 bytes respectively. The PC receives all three segments within the timer. But unfortunately the second segment was corrupted. So the PC immediately sends an acknowledgement segment. Assume that the PC uses Selective Repeat/Reject ARQ. g) The second segment from webserver was corrupted. So the PC…
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1. What is the difference between packet fragmentation (i.e., at network layer) and frame frag- mentation (i.e., at link layer) in terms of purpose? 2. Suppose that host A is connected to a router R1, R1 is connected to another router, R2, and R2 is connected to host B. Suppose that a TCP message that contains 800 bytes of data and 20 bytes of TCP header is passed to the IP function at host A for delivery to B. Show the Total length, DF, MF, and Fragment offset fields of the IP header in each packet transmitted over the three links. (Assume that link A-R1 can support a maximum frame size of 1024 bytes including a 14-byte frame header, link R1-R2 can support a maximum frame size of 512 bytes, including an 8-byte frame header, and link R2-B can support a maximum frame size of 432 bytes including a 12-byte frame header.) (*hint: the Fragment offset field is denominated by 8-bytes, not bytes) 3. What is the purpose of the path MTU discovery process (see textbook Figure 5-42) and why does…