What is Bandwidth in Networking? Detail Guide
What is Bandwidth in Networking? Bandwidth in networking is the maximum rate at which data can be transferred…
CCNA, CCNP, CCIE, Network+, Security+, AWS, Azure and CEH side by side, cost, exam code, difficulty, validity and realistic salary range. Filter by experience level or vendor.
Exam codes, prices and salary ranges change. Prices shown are US list prices at the time of writing, always confirm the current exam version and fee on the vendor’s own site before booking.
If you are completely new to IT, start with CompTIA Network+ for a vendor-neutral foundation. If you already know the basics and want the strongest return on your time, go straight to the CCNA, it is the qualification hiring managers in enterprise networking actually look for, and it teaches configuration rather than terminology.
For a security career, Security+ is the standard entry point and is approved under the US DoD 8570 directive, which matters for government and defence contractor roles.
| Career Goal | Start With | Then Get | Advanced |
|---|---|---|---|
| Network Engineer | CCNA | CCNP Enterprise | CCIE Enterprise |
| Security Engineer | Security+ | CEH or CISSP | OSCP |
| Cloud Engineer | AWS Cloud Practitioner | AWS Solutions Architect | AWS DevOps Professional |
| IT Support moving to Network | Network+ | CCNA | CCNP |
| Wireless Specialist | CCNA | CWNA | CCNP Wireless |
| Network Automation | CCNA | Cisco DevNet Associate | DevNet Professional |
This is the most common question, and the honest answer is that it depends on how much time you have.
| CompTIA Network+ | CCNA | |
|---|---|---|
| Approach | Vendor-neutral theory | Hands-on configuration |
| Study time | 6 to 10 weeks | 3 to 6 months |
| Lab practice | Optional | Essential |
| Employer recognition | Good for help desk and junior roles | Strong for network engineer roles |
| Salary ceiling | Lower | Higher |
If you can commit to three to six months and build a lab, skip straight to CCNA, it covers most of the Network+ material anyway and carries far more weight. Take Network+ first if you need a credential quickly, or if your employer specifically asks for a vendor-neutral one.
The exam fee is rarely the full cost. Budget for:
Many employers will reimburse exam fees, and some pay for the training too. Ask before you pay for it yourself.
Most people need three to six months studying part time, assuming some existing IT background. Coming in with no networking experience, plan for six months and build a lab in Packet Tracer from week one, the exam tests configuration, not just recall.
Yes. Cisco and CompTIA certifications are valid for three years and can be renewed with continuing-education credits or by passing a higher-level exam. Microsoft role-based certifications expire after one year but renew free through a short online assessment.
Yes. Even as networks move toward cloud and automation, the CCNA syllabus covers the fundamentals every one of those technologies is built on, addressing, routing, switching and security. It remains the most widely requested networking certification in job listings.
Cloud certifications and the CCIE sit at the top of the range. But certifications do not pay salaries, roles do. A CCIE working as a network architect earns well because of the role; the certificate is what qualifies you to be considered for it.
It happens, but a certification alone is rarely enough. What converts is a certification plus demonstrable hands-on work: a home lab you can talk about, configurations you have built, problems you have debugged. Interviewers ask what you have configured, not what you have read.
Do networking first. Cloud networking is still networking, VPCs, subnets, route tables, security groups and peering are the same concepts with different names. Engineers who understand the fundamentals learn the cloud layer quickly; the reverse is much harder.
Read our full guide to the best certifications for network engineers and CCNA vs Network+ compared in detail. Test yourself with our free OSI model quiz, practise subnetting with the subnet calculator and VLAN calculator, or prepare for interviews with our top 50 networking interview questions. See all our free networking tools.