Question 12 3 Points Write down Python code lines that will receive a JSON string from a UDP socket and deserialize it into a Python object. Use the editor to format your answer Question 13 1 Point
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- The following questions are related to HTTP protocol Q1. The first line of a HTTP request from some client to some server is basically made of where the web page file path is added. The path is shown as folders separated by slash. Q2. If an HTTP server responds to a client request and the response is a success, what is the http code and string that marks a success response? Must provide the code and the string as they appear in TCPDump or Wireshark traces. (note: use upper case for the string and also proper spacing in you answers. Keep the order of the string and the code as seen in TCPDump) Answer: code and string that marks a success response Q3. What http header field is used to identify an address of a web page (i.e. the URI) that linked to the resource currently being requested. This field indicates the last page the user/requester was on by the time they link to the requested page. Answer: The field that indicates the last page the user/requester was on is Q4. What is the http…Metric is used to choose between multiple paths learned via the different protocols True False is the interface that allow you to include an IP subnet in the routing protocol without sending updates out of the interface * O Loopback interface Passive interface Physical Interface Ethernet interface In Equal Cost Multi Path, If you have one particular host that is talking to a web server, its traffic for that flow will be divided between routers. * False TrueIn 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.
- 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?IPV4 is a Connection oriented Protocol. * False True Broadcast is the process of sending a packet from one host to a selected group of hosts. * False True The prefix length is the number of bits in the address that gives the Host portion. " False True The metric is used to decide which route appears on the routing table. * True False The throughput value is greater than The Bandwidth Value. * True False O O O OSuppose a user has a webserver running at a machine with the name www.nadir.edu.net.pk and IP address 10.10.10.10. The authoritative dns address for this web server is with the name dns.nadir.edu.net.pk and with IP address 11.11.11.11. a. Write all the steps involved in inserting this webserver name in the DNS hierarchy. b. Write all the steps involved in retrieving the IP address of www.nadir.edu.net.pk
- TCP multiplexing and demultiplexing. Consider the figure below, with 6 sockets shown across the network, and the corresponding Python code at each host. There are four TCP segments in flight. mySocket = socket (AF_INET, SOCK_STREAM) mySocket1 = mySocket.bind (myaddr, 3200) #sockets to clients created via # later calls to mySocket.accept() mySocket = socket (AF_INET, SOCK_STREAM) mySocket.bind (myaddr, 6515) P1 transport network link physical B source port: ? dest port: ? O Segment B destination port # O Segment A destination port # O Segment C destination port # O Segment C source port # O Segment B source port # O Segment D destination port # O Segment D source port # O Segment A source port # P4 A source port: ? dest port: ? K P5 transport network link physical P6 socket (AF_INET, SOCK_STREAM) mySocket1.bind (myaddr, 6287 ); mySocket2 = socket (AF_INET, SOCK_STREAM) mySocket2.bind (myaddr, 5313 ); Which of the following source or destination port number fields in these four segments…UDP Echo ApplicationA UDP Echo program is a simple network application that demonstrates the basicprinciples of UDP communication. In this program, a server listens for incoming UDPpackets from clients, and when it receives a packet, it echoes (sends back) the samepacket to the client. The client sends a message to the server, and the server returns thesame message. It's often used for testing network connectivity and understanding thefundamentals of UDP communication. (Answer the following question using python) Implement both the server and client components of this UDP Echo program whileadhering to the features outlined below. Please ensure that your implementation followsgood coding practices and provides clear prompts and feedback to the user, making ituser-friendly and robust. Please refer to the class example to guide your implementation. 1) UDP Echo Server Receiving and Displaying Messages: The UDP Echo server should be able toreceive messages sent by clients. For each…Telnet protocol, is used to provide remote access to servers and networking devices. * O True False In the client/server model, the device requesting the information is called a Server. * False True Every connected end device, known as a peer, can function as either a server or a client. True O False The DHCP uses the TCP port Number 67. * False True
- Using the Nmap tool complete the following tasks and store the outcome into a text file: Scan the open ports of an IP in your network domain (for 192.168.1.102) Scan all the machines in your network and list the available open ports. Create a list of target IP and scan these IP address for open ports and Operating System (OS) details.QUESTION 21 It is possible for two UDP segments to be sent from the same socket with source port 5723 at a server to two different clients. True False QUESTION 22 The acronym API in this textbook stands for “Application programming interface”. True FalseWrite a Python program that assists you in managing a network of devices for your company. You need to keep track of the IP addresses, MAC addresses, and device types in your network. List: Create a list named device_ip containing IP addresses as strings. Your network consists of one router and at least one of each of the following devices: switch, server, workstation, printer, and mobile device. Each device should have a unique IP address. The router's IP address should be '192.168.1.1'. Print each IP address on a new line. Tuple: Since MAC addresses of devices are unique and not changing, you decide to store them in a tuple named device_mac. Create this tuple with MAC addresses corresponding to each IP address. A MAC address looks like '00:14:22:01:23:45'. Print each MAC address on a new line. Set: You also want to keep track of the different types of devices in your network. As the device types are distinct and do not have duplicates, create a set named device_type that contains…