Network administrators are accountable for maintaining computers and their hardware. They typically focus on elements of their network within their organization. In certain instances, it is the job of the network administrator to create and manage new networks. While some of the responsibilities for network administrators can differ according to the size and location of the organization they are employed by however, there are some common duties that administrators of all levels have in common. They generally are responsible for network address assignment, management and the execution of protocol. They also manage the administration of networks and server files. If they work for smaller businesses Network administrators are typically responsible for conducting maintenance on printers, computers phones, routers and other devices. Their responsibilities include monitoring networks and testing for vulnerabilities, implementing updates setting up and installing security software as well as evaluating the effectiveness of network management software. Administrators of networks are also accountable to ensure that the network utilized by the company is operating efficiently and properly maintained. Administrators working for smaller businesses are also responsible for ensuring that the licenses are in order and current and examining for security breaches and maintaining the correct installation and software. To become an administrator of networks, it is essential to have a thorough technical expertise. It is also necessary to hold a bachelor's degree in information systems, computer science or mathematics, or a related area. Being an administrator of networks is a stimulating and thrilling job for those who are interested in computer networks and technology.