Tips to Solve Networking Questions

Tips to Solve Technical Questions based on Networking a) Where Server should be placed: In a building where the number of computers installed is maximum. b) Suggest a suitable cable layout of Connection: It can be done in the following two ways: i) On the basis of Server ii) On the basis of distance from each building c) Where the following devices should be placed: * **Server:** Large number of computers in the building * **HUB/Switch:** Each building * **Modem:** In the server room * **Repeater:** It is used if the distance between source and destination is more than 70 meters. It regenerates data and voice signals. * **Router:** When one LAN is required to be connected to other LAN * **Best Layout:** Star (from Server), Bus Topology * **Best Cable:** Twisted pair, Ethernet cable, Coaxial cable(When distance is in meters) For long distance- **Fiber Optics Cable** * **Best Connecting Technique:** In hilly regions, radio waves should be used, and for city to city, state to state, country to country **satellite** should be used. Wired Communication Speed is the first and most obvious difference between fiber optics and Ethernet. Fiber is clearly faster, being able to sustain data speeds more than 100x faster than Ethernet under ideal conditions. That being said, it becomes a question of whether an environment needs data speeds that fast. Wireless communication is also referred to as Unguided Media or Unbounded transmission media. Features No physical medium is required for transmission. It can carry signals through air, water, or vacuum. It can travel large distances but it is also less secure Infrared Infrared is used for short-range communication like TV remotes, mobile phones, can travel large distances as well as can penetrate any wall ( Omni-directional, these waves can move in all directions). These are easy to gene Radio Waves radio waves are not effective in bad weather conditions, and they are less secure as they can travel large distances. Microwaves are a line of sight transmission, meaning both the antennas sending and receiving should be properly aligned. Microwaves are used in mobile phones communication and television distribution. Microwaves Protocol used:FOR CHATTING:- IRC FOR VOICE CALL-VoIP Voice over Internet Protocol (VoIP), is a technology that allows you to make voice calls using a broadband Internet connection instead of a regular (or analog) phone line Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. What is VoIP and how does it work? VoIP is the technology that converts your voice into a digital signal, allowing you to make a call directly from a computer, a VoIP phone, or other data-driven devices. Simply put, it's phone service delivered over the internet. What is VoIP example? VoIP, Voice over Internet Protocol, allows you to make and receive telephone calls over the internet. The most popular examples of VoIP services are Skype and Whatsapp. Advantages:- 1. Low Cost VoIP is a low cost alternative to the traditional telephone system. As the name suggests, VoIP uses your internet/broadband connection to make and receive your telephone calls 2. Higher Call Quality Because VoIP uses your internet connection, it offers higher call quality when compared to alternatives 3. Easily Scalable An advantage to VoIP is its scalability. Because VoIP telephone systems use the internet for calls, adding new users is easy. and many more.