CompTIA Network+ in Dublin
Ireland · Europe
What is CompTIA Network+?
CompTIA Network+ (exam code N10-009) is a vendor-neutral networking certification that validates your ability to design, configure, manage, and troubleshoot wired and wireless networks. It covers everything from IP addressing and routing protocols to network security and cloud connectivity. In Dublin, where multinational tech firms, financial services companies, and data centre operators are constantly hiring, Network+ serves as a recognised baseline credential that hiring managers trust. Whether you're coming from a helpdesk role or transitioning from CompTIA A+, this certification signals to Dublin employers that you can operate confidently in real network environments — not just talk theory.
Exam details
- Exam cost
- $358 USD
- Duration
- 90 min
- Passing score
- 720
- Renewal
- Every 3 yrs
Prerequisites: CompTIA A+ or 9-12 months networking experience recommended
Is CompTIA Network+ worth it in Dublin?
At $358 for the exam, CompTIA Network+ is one of the most cost-effective certifications available for Dublin-based IT professionals. With an average IT salary of around $78,000/yr in Dublin and a documented uplift of $6,000/yr attached to this credential, you're looking at a return on investment inside the first month of a new role. Dublin's tech sector — anchored by companies like Google, Meta, and a dense cluster of managed service providers — consistently lists Network+ as either a requirement or a strong preference in networking and systems support job postings. That demand keeps the salary premium stable and makes this cert genuinely worth pursuing.
12-week study plan
Weeks 1–4
Networking Fundamentals & the OSI Model
- Study the OSI and TCP/IP models in depth — understand which protocols operate at each layer and why it matters for troubleshooting
- Master IP addressing: subnetting, CIDR notation, IPv4 vs IPv6, and practise subnetting calculations daily until they are fast and automatic
- Learn core network topologies, cabling types (fibre, copper, coax), and connector standards covered in the N10-009 objectives
Weeks 5–8
Routing, Switching & Network Services
- Study switching concepts including VLANs, STP, and port security, then move into routing protocols such as OSPF, BGP basics, and static routing
- Cover DHCP, DNS, NAT, and NTP — understand how each service is configured and what failure looks like from a troubleshooting perspective
- Set up a home lab using Packet Tracer or GNS3 to practise configuring routers and switches hands-on rather than relying solely on reading
Weeks 9–12
Security, Troubleshooting & Exam Readiness
- Study network security concepts: firewalls, IDS/IPS, VPNs, wireless security protocols (WPA2/WPA3), and common attack types like MITM and DDoS
- Work through the CompTIA Network+ troubleshooting methodology systematically — practise applying it to scenario-based practice questions
- Complete at least three full-length timed practice exams, review every wrong answer against the official N10-009 exam objectives, and close remaining gaps
Recommended courses
coursera
CompTIA Network+ Professional Certificate
Professional certificates & degrees
View on Coursera →pluralsight
CompTIA Network+ Learning Path
Tech skills platform — monthly subscription
View on Pluralsight →udemy
CompTIA Network+ Complete Course
by Top-rated instructor
One-time purchase, lifetime access
View on Udemy →Exam tips
- 1.Memorise the CompTIA Network+ troubleshooting methodology (identify the problem, establish a theory, test, establish a plan, implement, verify, document) and apply it consciously to every scenario-based question — the exam rewards structured thinking over guessing
- 2.Practise subnetting until you can calculate usable hosts, network addresses, and broadcast addresses for any CIDR prefix within 30 seconds — subnetting questions appear consistently on N10-009 and time pressure is real
- 3.For performance-based questions (PBQs), which appear at the start of the exam, don't spend more than 3–4 minutes on any single one — flag it, move to the multiple-choice section, and return with fresh eyes at the end
- 4.Know your port numbers cold: SSH (22), DNS (53), HTTP (80), HTTPS (443), RDP (3389), SMTP (25/587), IMAP (143/993) — the N10-009 exam tests these in troubleshooting contexts where identifying a blocked port is the correct answer
- 5.Study the differences between WPA, WPA2, and WPA3 thoroughly, including their authentication methods and known vulnerabilities — wireless security is a heavily weighted domain in N10-009 and Dublin employers operating in regulated industries ask about it in interviews too