Are you interested in technology? Have a fascination with computers? If so, you may consider a career as a network systems administrator. Florida National University offers an Associate of Science Degree in Networking Systems Administration to prepare you to work with computer networks. So, what is a computer network?
What is a Computer Network?
A computer network is a system that connects multiple devices to transmit and share information. Most networks are connected with either cable or wireless media. There are also computer networks available in the cloud. Here are a few terms you will need to know to become an entry-level computer network administrator:
Cloud Networking – Virtual network components that run on a cloud provider’s physical networking infrastructure, like Amazon Web Services (AWS).
Client-Server Architecture – A server device provides memory, processing power, and data to client access. Clients can communicate with each other but not share resources.
Peer-to-Peer (P2P) Architecture – Connected devices have equal powers and privileges, with no central server. Each device can act as either a client or server. Each peer shares resources with the entire network.
Local Area Network (LAN) – An interconnected system only limited by the size and geography of the network.
Wide Area Network (WAN) – An enterprise network that is set up for long-distance communication that is secure and reliable.
Server Provided Network – Allows customers to lease network capacity and functionality. Server provided networks are operated by telecommunication companies, data carriers, wireless and Internet providers, and cable operators.
Cloud Network – A WAN with its infrastructure provided by a cloud-based service. Services are available on demand and can include virtual routers, firewalls, and network management software.
Wireless LAN (WLAN) – Computers that create a network using radio transmissions rather than wired connections. Wi-Fi is a type of WLAN.
Small Office Home Office (SOHO) – Network that connects local area network connections for small businesses.
Protocol – A protocol is a set of rules that define the language of a connected device. Some protocols include TCP, UDP, IP, and ICMP.
Transmission Control Protocol (TCP) – A transportation layer used to establish a connection.
IP Address – A unique identifier assigned to each device on a network.
UDP – User datagram protocol that can supplement TCP with a transportation layer.
Internet Control Message Protocol (ICMP) – Used to send messages between devices.
Hypertext Transfer Protocol (HTTP) – An application layer that allows devices to communicate over the web.
Dynamic Host Configuration Protocol (DHCP) – Automatically assigns an IP address and setting to a device on a network.
FTP – File transfer protocol used to transmit files over TCP/IP.
SMTP – Simple mail transfer protocol used to send and receive email.
SNMP – Simple network management protocol used to monitor computer networks.
ARP – Address resolution protocol used by IPv4 to map IP addresses to a device’s address.
Domain Name System (DNS) – Provides a memorable name for internet resources.
SSH – Secure shell that is encrypted to communicate securely with a remote server.
Firewall – A firewall is a program that is the gatekeeper for Internet traffic. It creates rules to accept traffic from a port.
Port – A port is an address on a single device that can be tied back to software.
Network Address Translation (NAT) – A way to repackage and send requests to a routing server.
Voice Over Internet Protocol (VoIP) – Used for voice transfer over an IP network.
Really Simple Syndication (RSS) – Used to disseminate information on the internet.
VPN – Virtual private network that helps maintain privacy while surfing the Internet.
Router – A network device that connects multiple networks.
How Does a Computer Network Work?
A modem, hub, switch, or data terminal links multiple computers together. Networks use a system of communication protocols to transmit information. The computer network architecture defines the design of the components and provides the specification for the network’s physical components, functional organization, protocols, and procedures. Network capabilities have become more secure and automated. Computer networks can:
Operate Virtually
A computer network can utilize an infrastructure with partitioning to create multiple networks. The devices are virtually linked and communicate over the Internet.
Integrate at Scale
Whether you want to own physical network servers or use the cloud, you can integrate at scale. Plus, network providers like Amazon Web Services have infrastructure built to integrate your virtual network at scale.
Expand Exponentially
Networks can scale up or down based on demand. Plus, traffic can be routed and controlled, supporting virtual traffic management.
Offer Data Security
With built-in features like encryption and access controls, computer networks can integrate antivirus software, firewalls, and other security features to make the network more secure.
Final Thoughts
Now that you know what a computer network is, it is time to learn more about Florida National University. After completing the Networking System Administrator program, you will be ready to install, configure, and manage computer infrastructure and support your organization’s computer networks. This program prepares you for roles such as System Administrator, Network Administrator, LAN Administrator, and Help Desk Support, providing a foundation for further education in Information Technology (IT). With an Associate of Science Degree in Networking Systems Administration from Florida National University, you will become a vital member of your organization.
Eager to Learn More?
This Networking System Administrator program offers students technical training and a basic foundation for designing, installing, configuring, and supporting a computer network. Our graduates are ready to get entry-level positions as System Administrators, Network Administrators, LAN Administrators, and Help Desk Support. The program also includes a fifteen-credit-hour component of General Education/Liberal Arts courses and offers the foundation necessary to continue onto a Bachelor’s Degree.
If you are interested in Information Technology, let Florida National University answer any questions you may have. Contact us today to learn more about our associate degree programs.
