Ad serving describes the technology and service that places advertisements on web sites. wikipedia.org

A computer repair technician is a person who repairs and maintains computers and servers. The technician's responsibilities may extend to include building or configuring new hardware, installing and updating software packages, and creating and maintaining computer networks. wikipedia.org

Network planning and design is an iterative process, encompassing topological design, network-synthesis, and network-realization, and is aimed at ensuring that a new network or service meets the needs of the subscriber and operator. wikipedia.org

A computer network, often simply referred to as a network, is a collection of hardware components and computers interconnected by communication channels that allow sharing of resources and information. wikipedia.org

Microsoft SharePoint is a Web application platform developed by Microsoft. wikipedia.org

Wireless network refers to any type of computer network that is not connected by cables of any kind. wikipedia.org

A firewall is a device or set of devices designed to permit or deny network transmissions based upon a set of rules and is frequently used to protect networks from unauthorized access while permitting legitimate communications to pass. wikipedia.org

Hardware troubleshooting is troubleshooting applied to computer hardware. Troubleshooting is a form of problem solving, often applied to repair failed products or processes. wikipedia.org

A software license is a legal instrument (usually by way of contract law, with or without printed material) governing the use or redistribution of software. wikipedia.org