Career in Network Security

How to Build a Successful Career in Network Security

A career in network security is a continuously evolving one that requires the professional to be skilled in analyzing the risks and vulnerabilities in the network. The objective of a network security professional is to protect the organization’s network infrastructure, both internally and externally, by creating and implementing procedures and policies. This career could be ideal for network administrators, network security engineers/administrators, security analysts/operators, or anyone who is involved in network operations who are looking to upskill to perform their job more effectively and efficiently.

A career in network security starts from the basics of networking like – fundamentals of computer network, networking concepts, architecture, design, communications, components, technologies, devices, layers, and many more, all of which, you can learn in the Certified Network Defender Training Program by EC-Council.


What is Networking?

Networking is all about the design, management, maintenance, operations, and troubleshooting of the network infrastructure, software applications, devices, and policies. Computer networking connects devices and endpoints via different types of computer networks such as a LAN, WAN, PAN, or MAN.


What is Network Security?

In simple words, network security is a combination of techniques, technologies, and tools that work together to protect the network. It is the application of rules and policies for secure network configuration with the help of hardware and software technologies. The objective of network security is to defend the network from unauthorized access and ensure confidentiality, integrity, and availability.


Who is a Network Engineer?

Network engineer or network architect is a technology professional responsible for implementing, functioning, maintaining, and fixing computer networks to ensure their connectivity and systems functionality within an organization.


What does a Network Engineer job entail?





Difference between a Network Engineer and a Network Administrator:



Network securiy

Is Network Security a good Career?

Network Security Jobs

There is a huge market for network security professionals starting from a fresher to an executive level. There are over 110,000 Network Security jobs currently listed on LinkedIn alone, and a network security certification can help you land to these jobs with a most promising career.


Network Security Engineer Salary

Network Security Salary Figures: According to, the average salary of a network security engineer ranges from $57,000 to $128,000.


Transition to Network Security Profession
– How do I get into Network Security?


Knowledge of Computer Networks + A Certification in Network Security =
Gateway to a Network Security Career

For Network Engineer/Administrator

If you are a network engineer/administrator or involved in network operations, then moving to network security is a piece of cake for you. You just need to add a professional network security certification in your qualifications to make yourself job-ready.




For other Information Security Professional

If you are looking to build a career in information security/network security and new to this domain, then you can enroll for a program like Network Security Fundamentals (NSF). This certification makes you ready for an advanced level program like CND by imparting the fundamental knowledge of network security.


Network Security Certification

Every organization wants a highly skilled and qualified professional in their team, and especially when it comes to network security, skillset and knowledge play a vital role. Certifications one may hold also makes it easier to identify qualified professionals and check if the skills they possess aligns with the job role. Building a team without validating the skills could be a disaster as network security is the organization’s first line of defense and protect the organization from various forms of cyberattacks.


Network security courses – Selecting the Best Network security certification

The network security training program you are opting for should cover all the necessary topics about network security. The overall objective of the program is to prepare you to protect, detect, and respond to network security incidents. With the gained skill set, you should be able to achieve defense-in-depth security on the network.


Defense-in-depth Approach

Defense-in-depth is an approach to information security where multiple security controls are deployed in layers. If one layer fails, the other can cover to detect and protect from a cyberattack, ensuring sound security. Before a hacker penetrates the information system, it has to face all the security layers, which makes it close to impossible to get through.



How to select the best Network Security Program?

Selecting the best network security course is the first question that comes in the mind while starting a career in this domain. Here are the criteria for selecting the network security certification.


Vendor Neutral

The program’s objective should be to equip the professionals with technologies in general and no inclination on any specific technologies. This would widen the scope for the candidate in terms of knowledge, jobs, and growth.


Course Content

The course content of the network security training program should cover all the topics required to become a network security specialist, starting from fundamentals of a computer network to responding to network security incidents.


Recognitions and Accreditations

The network security program should have some recognitions or accreditations from a governing body and mapped to job roles recommended by an internationally recognized body.


Requisites of Network Security Training Program Content

Ideally, network security program should cover the following important topics


Get the Best Network Security Training with EC-Council

If you already know the best network security practices, then adding a network security certification will be a feather in your hat, helping you progress in the field and perform better. The certification also complements your network security skills with hands-on practice in a real-world scenario.


Here are some network security programs that can help you upskill and advance.


Network Security Fundamentals (NSF)

Network Security Fundamentals (NSF) is an entry-level program specially designed for those who want to start their career in network security. The program teaches you the fundamentals of network security and adds skills to identify threats on network structure and implement security controls.

The program helps you understand: 

  1. Key issues around network security
  2. Networking Fundamentals and components of OSI and TCP/IP model
  3. Network Security protocols
  4. Identification, authentication, and authorization concepts
  5. Detect and Identify security threats and attacks on the network
  6. Protect your network from cyber attacks
  7. IDS, its types, and signs of intrusion
  8. Fundamentals of Firewalls and related technologies
  9. VPN Security and Data backup
  10. Wireless Networking fundamentals

Thus, Network Security Fundamentals (NSF) program makes you ready for a full-fledged network security certification to progress your career.


Certified Network Defender (CND)

CND is a vendor-neutral, comprehensive, hands-on network security training program created by experts based on a rigorous job-task analysis. The program follows the protect, detect, and respond approach to network security and master the tools, techniques, and technologies that enable you to achieve defense-in-depth security. The hands-on labs will provide the students with real-world scenarios to learn the current network security technologies and operations.

The CND certification validates the skills required for a swift recovery and continuing operations in the event of cyber-attack.


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Network Security Training Online – Self-Paced

In this mode of training, you can take self-paced training online with access to courseware, training videos, and virtual labs. Network security courses online (self-paced) are the best option for those with a tight schedule and will not be able to dedicate 8-hours a day for training. Self-paced online courses for network security give you the leverage to refer course materials for a longer time compared to fix days for classroom training.


Network Security Classes Online – Live Online

In this mode of training, you can take the program from anywhere with a live instructor. In virtual classroom training gives the advantage of peer collaboration, virtual labs for hands-on learning and exercises by Certified EC-Council Instructor.


Instructor-led Network Security Classes (In-person)

In-person classroom training gives you the advantage of collaborating with your peers and gaining real-world skills. You can opt for this type of training by an EC-Council Accredited Training Center (ATC) in your city.





Q1. Which course is best for network security?

Ans. The best network security course content follows the protect, detect, and respond approach to attain defense-in-depth and covers all necessary topics related to network security. The network security certification courses should also be recognized or accredited from a governing body.


Q2. How do I become a network security engineer?

Ans. If you already have experience in networking or hold certification in any in-person or online networking course, then you can enroll for the network security program to start your career in this domain. If you are new to the computer network domain, you can start with some certification like Network Security Fundamentals (NSF) is an entry-level program specially designed for those who want to start their career in network security, and later you can go for computer network security course to progress your career.


Q3. What are the four types of networks?

Ans. Four types of computer networks are LAN (Local Area Network), PAN (Personal Area Network), MAN (Metropolitan Area Network) and WAN (Wide Area Network).

LAN (Local Area Network)

A LAN is a group of computers connected in a small area such as building, office. IT is used to connect computers via a communication medium such as twisted pair, coaxial cable, etc. It is comparatively inexpensive as it is built with hardware such as hubs, network adapters, and ethernet cables. It provides higher security for other types of computer networks.

PAN (Personal Area Network)

A PAN is a network arranged within a person, typically within a range of 10 meters. It is used to connect personal devices over an area of 30 feet or less. These devices may include laptops, mobile phones, media players, and even play stations.

MAN (Metropolitan Area Network)

A MAN covers a larger geographic area by different interconnecting LANs to form a larger network. This type of computer network is mainly used by Government agencies to connect to its citizens and private industries. Some of the most used protocols in MAN are RS-232, Frame Relay, ATM, ISDN, OC-3, ADSL, etc.

WAN (Wide Area Network)

A WAN extends over a large geographical area such as states or countries, extending via telephone lines, fiber optic cables, or satellite links. An example of a WAN that is used around the world is the Internet.


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