With worldwide digital transformation, computer networks have become part of the critical infrastructure. They are instrumental in global connectivity, economic growth, and overall commercial development. Modern networks can be integrated on an enormous scale and have automation capabilities and robust data security facilitating further expansion of digital technologies, especially in business.
This article will discuss how computer networks work, why they are helpful, and some critical elements of networks. You will also learn how you can build your career in networking with the ExamSnap.com Cisco CCNA certification.
How Networks Work
Computer networking is the process of interconnecting a set of computing devices to share data and resources. Switches, routers, and wireless access points are the three building blocks that facilitate connections within and between networks. Nodes such as a switch, modem, or multiple computers are connected to each other via links, such as cable wires or optical fibers. Links can be wireless as well. These nodes and links form together with the help of the three building blocks to create a computer network. A computer network architecture provides Devnet Associate guidelines on how the network will function.
Types of Network Architecture
There are two main types of network architecture.
- Client-server architecture
- Peer-to-peer architecture
In a client-server architecture, multiple clients communicate with a central server. A peer-to-peer (P2P) architecture comprises a decentralized network of nodes that are both servers and clients.
Enterprise Networks
With networks taking center stage, Devnet Professional organizations have taken steps to create private networks that facilitate internal and external communication, cloud applications, convenient information exchange, and more. Common CCNP Enterprise network types include:
- Local Area Network
- Wide Area Network
- Service provider networks
- Cloud networks
Now, let’s go over some important elements in networks.
Internet Protocols
Commonly referred to as IPs, this is a set of rules governing the direct transmission of data across the internet or other network. There are two common transport protocols currently in use: TCP and UDP. IPv4 and IPv6 addresses are assigned currently with the adoption of IPv6 going up as it contains more permutations for identification.
Network Security
This is one of the most important elements of CCIE Enterprise, as securing your network is vital. There are multiple ways of assuring network security:
- Access control (Identity and Access Management)
- Network segmentation
- Perimeter security
- Encryption
Network Automation
Automation is becoming more commonplace everywhere, and it is true for networks as well. Network management automation in the form of configuration automation tools, policy management automation, and workload management automation is becoming a staple.
Your Career in Networking with the Cisco CCNA Certification
With everything mentioned above, it’s clear that networking is an ambitious sector of IT and it is going to evolve further in the near future. If you are looking to build a career in IT, this may just be the best option for you. This is where the Practice of Cisco Certified Networking Associate accreditation comes in. Cisco is a world-renowned IT networking company and its certifications are held in high regard. The CCNA certification will give you working knowledge of each of the subjects discussed above and prepare you for a career in IT with endless means of progression. The average salary you can earn with the CCNA designation is $82,000 per year, as stated on the PayScale website.
Conclusion
Computer networks facilitate communication for any business. The internet, email, audio and video sharing, online search, live-streaming, online commerce, as well as social networks all exist thanks to computer networks. Nowadays, networking is one of the most lucrative spheres in the IT industry. You can take the first step to building a successful career in this field by obtaining the CCNA certification.
