CCNA: ten practical articles
Each article solves one real problem, from application to renewal, and points to the exact chapter of CredenTrek For Cisco CCNA that carries it further. Facts are checked against Cisco documents.
- 01Decide and apply · 7 min read
CCNA, CCST, A+ or Security+: which credential should come first?
Is CCNA your first step? Use a four-question check, compare it with CCST, A+, Security+ and cloud credentials, and test the choice against real adverts.
- 02Decide and apply · 7 min read
CCNA v1.1 or v2.0? A calendar method that settles it in five minutes
Cisco replaces CCNA v1.1 with v2.0 on 3 February 2027. Work out your finish date, add a retake margin and pick the version with three dated examples.
- 03Prepare · 7 min read
What CCNA v2.0 changes, and how to reshape your study plan
CCNA v2.0 moves from six domains to five, adds troubleshooting, OSPFv3, HSRP and VRRP, and two AI topics. See the new weights and how to re-split your hours.
- 04Prepare · 7 min read
Build a CCNA lab in Packet Tracer, then break it on purpose
A free Packet Tracer lab covers most CCNA topics. Build one small network, then introduce a fault a week. See the design, the faults to try and a weekly rhythm.
- 05Prepare · 8 min read
Subnetting for CCNA: the block-size method, with worked answers
Learn CCNA subnetting with the block-size method: find the network, usable range and broadcast address in under a minute, with four worked examples.
- 06Prepare · 7 min read
Single-area OSPF for CCNA: neighbours, states and the faults that appear in simulations
Learn how OSPF neighbours form, the states they pass through, the settings that must match and a checklist for when a neighbour never appears.
- 07Book and sit · 6 min read
The CCNA exam in 120 minutes: question types, simulations and pacing
CCNA lasts 120 minutes, and Cisco publishes no question count or pass mark. See the question types, how to pace simulations and what the score report shows.
- 08Book and sit · 6 min read
CCNA exam cost, the two-ID check and the retake rules
The published CCNA fee is US$300 per attempt. See the full budget, the two signed IDs Cisco asks for, the five-day retake wait and the 180-day rule after a pass.
- 09Prepare · 7 min read
How to review CCNA practice questions so a miss becomes a lab
Sort each CCNA practice miss into four causes, turn it into a lab or a drill and try three worked questions to practise the habit.
- 10Leverage · 7 min read
After CCNA: how to land a first network role and keep the credential alive
Passing CCNA opens technician and operations roles. Turn it into CV proof with two lab projects, search the right job titles and plan renewal across three years.