Lapopo Lapop2 120 hosts Switcho | 61 Hosts itch 1 30 Hosts 15 Hosts Swich2 Swich3 R2 R3 Sample MAC Address: AAAA.AAAA.AAAAA Laptop1 Laptop3 In the given topology, Laptop 0 is configured with IP address 192.168.0.255/23 to use the internet. Unfortunately, Laptop 0 always fails to reach the internet. What could be the solutions to overcome the problem Laptop 0 is experiencing.

Lapopo Lapop2 120 hosts Switcho | 61 Hosts itch 1 30 Hosts 15 Hosts Swich2 Swich3 R2 R3 Sample MAC Address: AAAA.AAAA.AAAAA Laptop1 Laptop3 In the given topology, Laptop 0 is configured with IP address 192.168.0.255/23 to use the internet. Unfortunately, Laptop 0 always fails to reach the internet. What could be the solutions to overcome the problem Laptop 0 is experiencing.

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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In which of the following applications, UDP is a suitable transport layerprotocol? (a)In SMTP, a user can send a long e-mail message, which may includemultimedia. When a user sends a message, the recipient does not expectto receive a response quickly. (b)A user needs to download a very large text file from the internet. Theuser doesn’t want part of the file to be missing or corrupted when he/sheopens the file. The delay created between the delivery of the parts arenot an overriding concern for him. (c)In DNS, a client needs to send a short request to a server and to receive a quick response from it. The request and response can each fit in one userdatagram.
q43- An organization currently requires 40 hosts for its sales department. Given the IP Address 194.12.1.0 /24, design an optimal address scheme usingTradition Subnetting method, which will enable the connection of the sales department’s 40 hosts in one subnet and uses the remaining subnets for other departments’ hosts in the future. What will be the new subnet mask? Select one: A. 255.255.255.0 B. 255.255.192.0 C. 255.255.240.0 D. 255.255.255.192 E. B. 255.255.128.192
Given the IP address 180.15.128.0/20. Now, using the given IP address space create five subnets in such a way so that less number of IP address is wasted for each subnet and the subnets will have the following number of hosts SubnetA - 23 hostsSubnetB - 50 hostsSubnetC - 2 hostsSubnetD - 6 hostsSubnetE - 10 hostsNow find out the following for each subnet: a) Network ID b) Broadcast address c) First usable IP address d) Last usable IP address e) Subnet mask Here, while solving the question make sure you are saving IP addresses. For example, SubnetA needs 23 hosts so in SubnetA you can allocate maximum 30 hosts. Follow the table for all the allowed number of hosts and required number of host bits for each subnet: Name of Subnet Maximum number hosts you can allocate Length of Host bits in the IP address cannot exceed SubnetA 30 5-bits SubnetB 62 6-bits SubnetC 2 2-bits SubnetD 6…
Write a script to find and print a "ping sweep"? Use the following code: import os my_ip="192.168.10.103" # sub your ip address os.system('ping -n 4 {}'.format(my_ip))
q41- An organization currently requires 40 hosts for its sales department. Given the IP Address 194.12.1.0 /24, design an optimal address scheme usingTradition Subnetting method, which will enable the connection of the sales department’s 40 hosts in one subnet and uses the remaining subnets for other departments’ hosts in the future. Based on the designed address scheme, answer the question 41 – 50How many bits were borrowed for subnetting? Select one: A. 2 B. None of the above C. 4 D. 3
48- An organization currently requires 40 hosts for its sales department. Given the IP Address 194.12.1.0 /24, design an optimal address scheme usingTradition Subnetting method, which will enable the connection of the sales department’s 40 hosts in one subnet and uses the remaining subnets for other departments’ hosts in the future. What will be the range of usable (assignable) addresses in 4th subnet? Select one: A. 194.12.1.192 to 194.12.1.255 B. 194.12.1.193 to 194.12.1.254 C. 194.12.1.193 to 194.12.1.253 D. 194.12.1.192 to 194.12.1.254
49- An organization currently requires 40 hosts for its sales department. Given the IP Address 194.12.1.0 /24, design an optimal address scheme usingTradition Subnetting method, which will enable the connection of the sales department’s 40 hosts in one subnet and uses the remaining subnets for other departments’ hosts in the future. What will be the last host address of 4th subnet? Select one: A. 194.12.1.254 B. 194.12.1.192 C. 194.12.1.253 D. 194.12.1.255
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.
Q7. Suppose we have the following IP addresses for two different organizations, we have to create 5 networks having 30 hosts in it. Find first sub network ID, Fist address, Last address and Braodcast for each of the following given addresses.a. 17.23.120.8b. 252.5.15.111
A Network with id: 192.168.0.0 and subnet mask 255.255.0.0 is given to you to split it in such a way thatfollowing classrooms are given adequate number of IPs based on their needs. Each classroom willoccupy its own subnet. The following information for each subnet must be included:  Subnet ID CIDR Subnet Mask First IP usable in the subnet Last IP usable in the subnet Broadcast IP Address for the subnet Classroom1: 8 PCsClassroom2: 400PC and 4 PrinterClassroom 3: 2 PCsClassroom4: 62 PCs and a ServerClassroom5: 24PCs
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