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 analysing 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 involved in network operations who is 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.


What Are the 4 Types of Computer Network? 

Computer networks are categorized as per their size and the purpose served. These network types are:

LAN (Local Area Network) – A LAN is a group of computers connected to each other in a small area. LANs are used in offices, colleges, and institutes. This type of networking primarily uses a twisted pair or coaxial cable.

PAN (Personal Area Network) – A PAN typically exists within a range of 10 meters and is used for connecting devices for personal use.

MAN (Metropolitan Area Network) – A MAN is used to interconnect various LANs through telephone exchange lines. Due to its sheer size, it has a higher range than LAN.

WAN (Worldwide Area Network) – A WAN has a higher range and is used to connect multiple cities and even countries. WAN uses telephone lines, fiber optic cables, or satellite links.


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?

A 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

Who Is a Network Security Engineer/Administrator?

A network security engineer is responsible for planning, designing, optimizing, auditing and troubleshooting network security systems. This way, they make sure that the organization doesn’t suffer any kind of cyberattack. These engineers also perform network-based security risk assessments and continuously design solutions to tackle new issues that may occur with a company’s expansion.

Their major roles and responsibilities include –

  • Maintaining LAN, WAN, and Server Architecture according to business policies.
  • Testing systems for vulnerabilities to resolve existing security issues.
  • Maintaining virtual private networks, firewalls, email security and web protocols, security and programs.
  • Developing the security authentication protocol.
  • Creating virus detection systems.
  • Analyzing and implementing new security protocols and technologies.
  • Developing authentication and authorization protocols.
  • Investigating security breach alerts.


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 these jobs and pave the path towards a 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?

For Network Engineers/Administrators

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 Professionals

If you are looking to build a career in information security/network security and are 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.


What Is the Importance of Network Security Certification?

Every organization wants a highly skilled and qualified professional in their team, and when it comes to network security, skillset and knowledge play a vital role. Certifications make it easier to identify qualified professionals and check if the skills they possess align with the job role. Building a team without validating these 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, respond, and predict network security incidents. With your newly gained skill sets, you should be able to achieve defense-in-depth security on the network.


How to select the best Network Security Program?

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


Vendor Neutral

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


Course Content

An ideal network security training program should be designed to cover all the necessary topics that are relevant to the modern era of cybersecurity. The course should prepare students to protect, detect, respond, and predict network security incidents. This approach grooms the student to determine a possible hacking attempt in its initial phase and prepare for the threat accordingly. This training tactic is also helpful when it comes to determining multiple scenarios and outcomes.


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.



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.


Multiple Training Options

Aspirants who seek to be a part of network security training should find a flexible choice in pursuing the course. Options like self-paced, live online, and in-person training makes it easy for students to attend the class irrespective of their location and the nature of the job.

  • 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 whose tight schedule restricts them from dedicating 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 fixed 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. Virtual classroom training has the advantage of peer collaboration, virtual labs for hands-on learning, and exercises by a 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.



Students often complain that an online exam structure restricts them if their location, time zone, etc., don’t match. EC-Council understands this issue and has tied up with ProctorU to fill this gap and make every student feel equal. ProctorU is an online proctoring service which allows EC-Council candidates to take exams from any location 24×7. All you need is a computer equipped with a webcam and a microphone and you are good to go.

Apart from online mediums, you can also choose to attend personalized classroom sessions and find guidance from an experienced mentor at our Accredited Training Centers.



Requisites of Network Security Training Program Content

Ideally, network security program should cover the following important topics

  • Fundamentals of Computer Network
  • Network Monitoring and Analysis
  • Approach for Defense-in-Depth Security
  • Network Security Vulnerabilities and Attacks
  • Network Security Controls, Protocols, and Device
  • Network Security Policy Design and Implementation
  • Physical and Host Security
  • Secure Firewall and VPN Configuration and Management
  • How to Secure Wireless Network
  • Data Backup and Recovery


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 cap, 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 cyberattacks.
  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, the Network Security Fundamentals (NSF) program makes you ready for a full-fledged network security certification to advance 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, respond, and predict approach to network security and guides you to master the tools, techniques, and technologies that will enable you to achieve defense-in-depth security. The hands-on labs will provide 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 cyberattack.


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Q1. Which course is best for network security?

Ans. The best network security course content follows the protect, detect, respond, and predict approach to attain defense-in-depth security 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 a 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 a certification like Network Security Fundamentals (NSF), which is an entry-level program specially designed for those who want to start their career in network security,and go for a computer network security course later for further career progression.


Q3. What are the different types of IT security?


  • Network Security
  • Internet Security
  • End-point Security
  • Cloud Security
  • Application Security