Bridges and switches operate on the data link layer of the OSI model. However, the switches are more advanced. Discuss the advantage of a switch over a bridge in a network and then further elaborate on the technology implemented in switches to control broadcast domains. A network switch is a network device that connects devices together on a network implementing some form of packet switching. It operates in the Data Link layer of the OSI model. It essentially acts as a multiport network bridge that processes and transmits data. Other types of switches have additional features such as the ability to forward packets. These switches are commonly referred to as layer 3 or multi-layer switches. The simplest and most common type of switch is the basic switch. It can be called a multiport bridge because it separates a network into multiple collision domains.Switch in a NetworkA network bridge is a device that connects two separate Ethernet networks into a single wide area network. It operates at a logical level, meaning it can filter frames to only pass data whose destination address matches a machine on the other connected side of the bridge. It is used to segment a network and retain frames that are intended for the local network while transmitting those that are to be sent to other networks. This improves the level of privacy since information intended for one network cannot be eavesdropped on the other connected network. It also reduces traffic and collisions across all networks. A bridge connecting two networks The difference between a switch and a bridge is that each port on a switch is its own collision domain. A collision domain is formed between two devices connected through a middle of paper...so it is a reliable method of securing data and used as an Internet standard. It supports the use of nested tunnels. which means that multiple gateways and tunnels can be re-encrypted. IPSec is limited by: It is very difficult to implement and requires special support in routers. There are some problems with different implementations of IPSec that do not follow the standard and do not communicate. correctly between them TLS/SSLSecureReferences:Charles M. Kozierok. (2005). DNS components and general functions. Available: http://www.tcpipguide.com/free/t_DNSComponentsandGeneralFunctions.htm. Last accessed April 1, 2014. Kurose, James F. (2012.). Computer networks. 6th ed. Harlow: Pearson Education. 482.Timothy Pintello (2013). Introduction to networking with Network1. United States: John Wiley & Sons, Inc... 175-199.