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Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Please correct the code for this lab. Current code: import random def create_random_open_ports(): #Create empty list / dictionary port = [] ports = {} #Fill list with 100 random port numbers from 10 - 100 for i in range(1,101): random_port = random.randint(10, 100) port.append(random_port) #Create a new dictionary with ports numbers as keys new_ports = ports.fromkeys(port, 0) #Iterate through new dictionary add random 0 / 1 #Closed port = 0, Open port = 1 for key in new_ports: r1 = random.randint(0,1) new_ports[key] = r1 return new_ports # TODO: create a function called create_host_IPs() that randomly generates a list of 10 IP addresses # concatenating the 4 values into a string and appending it to a host list. The function returns the generated # host list def create_host_IPs(): host = [] octet1 = "" octet2 = "" octet3 = "" octet4 = "" #Add loop with range 1 - 11 to create the 10 host IPs EX: 192.123.11.1 for i in range(1,11): octet1 = str(random.randint(1,255));#Not taking 0 as first octet cannot octet2 = str(random.randint(0,255)); octet3 = str(random.randint(0,255)); octet4 = str(random.randint(0,255)); host.append(octet1 + "." + octet2 + "." + octet3 + "." + octet4) return host # TODO: create a function called simulate_scan(h) that iterates through the host list (received as h ) and # then creates a new list called open_ports. The function should use a nested for loop that iterates # through the host list, and then iterates through the returned list from a call to create_random_open_ports(). # If the returned list value is 1, then append it to your open_ports list. # This simulates a scan of all the IPs in the host list and creates randomly generated open ports. # Finally it should print the host IP and a list of open ports as displayed in assignment information. def simulate_scan(h): open_ports = [] for i in range(len(h)): random_ports = create_random_open_ports() for j in random_ports: if random_ports[j] == 1: open_ports.append(j) print("IP Address :" + h[i] + " Open Ports :" + str(open_ports)) if __name__ == "__main__": #Simulate port scanning for open ports active_hosts = create_host_IPs() simulate_scan(active_hosts) Error Messages: 2:Unit testkeyboard_arrow_up 0 / 5 Test function simulate_scan( ) for output Test feedback simulate_scan() method output is incorrect.