- The Exam Snapshot: Numbers to Memorize
- Registration, Proctoring and Test-Day Rules
- The Nine Competency Categories at a Glance
- Domains 1-3: Networking Fundamentals, Addressing and Cabling
- Domains 4-6: Devices, Internet Connections and Services
- Domains 7-9: Physical Security Devices, Cyber Security and Troubleshooting
- Fees, Retakes, Maintenance and the Upgrade Path
- Sequencing Your Review by Domain
- Frequently Asked Questions
- ESNT is an ETA International knowledge exam: 80 questions, two hours, 75% to pass, no hands-on assessment required.
- The exam fee listed on ETA's current pages is USD 105; remote proctoring through ExamRoom.AI adds USD 16.
- ETA publishes nine competency categories but no percentage weights, so study all nine rather than guessing at emphasis.
- The certification term is four years, with separate annual maintenance: 10 CE hours (or Employer Verification) plus USD 25 per year.
The Exam Snapshot: Numbers to Memorize
The Electronic Security Networking Technician (ESNT) credential is issued by ETA International. It targets technicians who install, configure and troubleshoot IP-based electronic security systems: cameras, access control, intrusion devices and the networks that carry their traffic. This cheat sheet condenses the facts that matter most so you can review them in a single sitting.
| Item | What to Know |
|---|---|
| Certifying body | ETA International |
| Number of questions | 80 |
| Time limit | Two hours |
| Passing score | 75% |
| Exam fee | USD 105 (per ETA's current ESNT pages) |
| Certification term | Four years |
| Hands-on assessment | Not required; proctored knowledge exam |
| Delivery | Paper, or Trapeza with an ETA Certification Administrator present; remote proctoring via ExamRoom.AI |
| Domain weights | Not published by ETA |
A quick pace calculation helps: 80 questions in 120 minutes leaves roughly a minute and a half per question. A 75% passing score on 80 questions means you need 60 correct answers. For a deeper breakdown of how that threshold plays out, see our guide to the ESNT passing score.
Registration, Proctoring and Test-Day Rules
Where and how you can test
ESNT is a proctored exam. You can take it on paper or through Trapeza with an ETA Certification Administrator present at a test site. ETA also offers remote proctoring through ExamRoom.AI, registered through ETA, which adds USD 16 for a two-hour examination.
Remote-testing equipment checklist
- A suitable computer
- A working webcam
- A working microphone
- Internet speed of at least 3 Mbps
General testing rules
- Bring photo identification.
- Scratch paper is permitted, and you must surrender used scratch paper at the end.
- Non-programmable or scientific calculators are allowed.
If you are still working out scheduling logistics, our overview of ESNT exam dates and scheduling covers the practical side, and the ESNT requirements guide explains eligibility in more detail.
The Nine Competency Categories at a Glance
ETA's competency document lists nine categories and states that the examination is based on them. It does not publish percentage weights, so treat every category as fair game. Anyone claiming a precise weight breakdown for ESNT is not citing ETA's published material. The table below is your master checklist.
| # | Competency Category | Think of It As |
|---|---|---|
| 1 | General Networking | Models, topologies, protocols and core concepts |
| 2 | Network Addressing | IP schemes, subnetting, address assignment |
| 3 | Network Cabling | Media types, termination, limits |
| 4 | Network Devices | Switches, routers, PoE gear and friends |
| 5 | Internet Connections | WAN links, NAT, remote access to systems |
| 6 | Network Services | DHCP, DNS, time and other supporting services |
| 7 | IP-Enabled Physical Security Devices | Cameras, recorders, access control endpoints |
| 8 | Cyber Security for Electronic Security Devices | Hardening, authentication, segmentation |
| 9 | Common Network Testing and Troubleshooting | Tools, methodology, fault isolation |
For a category-by-category deep dive, read the full ESNT exam domains guide.
Domains 1-3: Networking Fundamentals, Addressing and Cabling
Domain 1: General Networking
This is the vocabulary layer. Every other domain assumes you can speak it fluently.
- Reference models (OSI and TCP/IP) and which functions live at which layer
- Common topologies and how they affect failure behavior
- Core protocols and the ports and transport types they commonly use
- The difference between LANs, WANs and VLAN-segmented networks
- Unicast versus multicast versus broadcast traffic, which matters for video streams
Domain 2: Network Addressing
Security devices live and die by their addresses. Expect questions that ask you to reason about why two devices cannot communicate.
- IPv4 address classes, private ranges and subnet masks
- CIDR notation and calculating usable host ranges
- Static versus dynamic assignment, and when each suits a camera or controller
- Default gateways and what happens when one is wrong
- The basics of IPv6 and how it differs from IPv4 addressing
- MAC addresses and how they relate to IP addresses
Domain 3: Network Cabling
Cabling questions reward precise memorization of standards and limits.
- Twisted-pair categories, shielded versus unshielded, and typical use cases
- Fiber basics: single-mode versus multimode and when distance demands fiber
- Maximum channel length for copper Ethernet runs
- Straight-through versus crossover wiring conventions
- Termination standards and pin ordering
- Environmental considerations such as outdoor rating and separation from power
Domains 4-6: Devices, Internet Connections and Services
Domain 4: Network Devices
Know what each device does, what layer it operates at, and what a security installer cares about.
- Switches versus hubs versus routers, and managed versus unmanaged switches
- Power over Ethernet: why it matters for cameras and access points, and how power budgets work
- Wireless access points and the basics of bridging and point-to-point links
- Firewalls and their role at the network edge
- VLANs and trunking as a way to isolate security traffic
- Media converters and when you would use one
Domain 5: Internet Connections
Security systems increasingly depend on remote visibility, so connectivity topics matter.
- Common broadband and WAN connection types and their trade-offs
- Network address translation and port forwarding concepts
- Why bandwidth, especially upload bandwidth, constrains remote video
- Static versus dynamic public addressing and how that affects remote access
- VPN fundamentals as a safer alternative to exposing devices directly
Domain 6: Network Services
These are the background services that make a network usable.
- DHCP: leases, scopes, reservations and why cameras often get reservations
- DNS: name resolution and what breaks when it fails
- Time synchronization and why accurate timestamps matter for recorded evidence
- Basic directory, logging and monitoring services
- File and streaming protocols used to move video and event data
Many candidates find that Domains 4 through 6 are where their field experience helps most, since they mirror daily installation tasks. If you want a structured plan around them, our ESNT study guide walks through a first-attempt strategy.
Domains 7-9: Physical Security Devices, Cyber Security and Troubleshooting
Domain 7: IP-Enabled Physical Security Devices
This is the category that makes ESNT distinct from a general networking credential. Expect scenario questions that blend device behavior with network requirements.
- IP cameras, encoders and recorders, and how they discover and connect to each other
- Network video bandwidth and storage considerations
- Networked access control components such as controllers, readers and door hardware interfaces
- Intrusion and alarm communications over IP
- Device configuration basics: addressing, credentials and firmware
- Power and connectivity needs for edge devices
Domain 8: Cyber Security for Electronic Security Devices
Security devices are themselves targets, and the exam expects you to treat them that way.
- Changing default credentials and enforcing strong authentication
- Keeping firmware current and understanding why patching matters
- Network segmentation to keep security devices off general-purpose networks
- Disabling unused services and ports
- Encryption in transit and the idea of securing remote access
- Common threat types and how they apply to cameras and controllers
Domain 9: Common Network Testing and Troubleshooting
This domain tests your method as much as your memory.
- A structured approach: identify the problem, isolate the layer, test, fix, verify
- Command-line tools such as ping, traceroute and address-display utilities
- Cable testers and what their results indicate
- Reading link and activity indicators on devices
- Interpreting symptoms: no link, no IP, no gateway, no name resolution
- Verifying a fix without introducing a new problem
Key Takeaway
Bottom-up troubleshooting is your friend: check the physical layer (cable, link light, power) before addressing, then services, then application behavior. Many troubleshooting questions are really asking which layer the symptom points to.
Fees, Retakes, Maintenance and the Upgrade Path
Cost quick reference
| Item | Amount | Notes |
|---|---|---|
| Examination fee | USD 105 | Listed on ETA's current ESNT pages |
| Remote proctoring (ExamRoom.AI) | USD 16 | For a two-hour examination |
| Upgrade to Journeyman CET | USD 55 | Requires CETa and at least two years of combined training/experience |
| Annual maintenance fee | USD 25 per year | USD 100 over the four-year term |
Retake rule
If you do not pass, one free retake is available within one year of your first session. If you test remotely, the remote-proctoring charge still applies to the retake.
Maintenance versus certification term
These are two separate clocks. The certification term runs four years. Within that term, ETA's general maintenance expects:
- The maintenance form
- Either 10 continuing-education hours per year (40 over four years) or supervisor-completed Employer Verification
- USD 25 per year (USD 100 over four years)
Annual submission is recommended rather than waiting until the end of the term.
Where ESNT can lead
ESNT can be upgraded to Journeyman CET, which requires CETa plus at least two years of combined training and experience. If you are weighing the credential against your career goals, see whether ESNT is worth it, review earnings analysis, and browse ESNT jobs to see who hires for this skill set.
Sequencing Your Review by Domain
Because ETA publishes no weights, the smartest approach is to cover all nine categories and spend extra time where your background is thinnest. Technicians with a security background often need more help with Domains 1, 2 and 8; IT-trained candidates often need more time on Domain 7.
Foundations: Domains 1 and 2
- Master layer models, common protocols and ports
- Drill subnetting daily until it is automatic
Physical layer and devices: Domains 3 and 4
- Memorize cable categories, distance limits and termination standards
- Review switches, routers, PoE and VLAN behavior
Connectivity and services: Domains 5 and 6
- Review NAT, port forwarding and VPN concepts
- Practice DHCP, DNS and time-sync scenarios
Security focus: Domains 7, 8 and 9
- Connect device behavior to network requirements
- Walk through hardening checklists and troubleshooting flows
- Finish with timed practice sets at exam pace
In the final days, take full-length timed sets that mirror the 80-question, two-hour format, and use the ESNT practice tests to find weak categories. For background reading on what the credential covers, our overviews What Is ESNT Certification? and ESNT training are good companions, and the pass rate article explains what data is and is not available.
Key Takeaway
Because the exam is closed to programmable calculators but allows scientific ones, practice subnetting both by hand and with a basic scientific calculator so you are comfortable with whichever approach you take on test day.
Frequently Asked Questions
The exam has 80 questions with a two-hour time limit. You need a 75% score to pass, which works out to 60 correct answers.
No. ETA lists nine competency categories and states that the exam is based on them, but it does not publish percentage weights. Plan to study all nine rather than relying on unofficial weight estimates.
No. ETA's current pages list no required hands-on assessment. ESNT is a proctored knowledge examination, offered on paper or through Trapeza with an ETA Certification Administrator present, or remotely through ExamRoom.AI.
ETA offers one free retake within one year of your first exam session. Remote-proctoring charges still apply if you retest remotely. Some older sources mention a 30-day waiting period, but current testing pages do not confirm it, so check with ETA when scheduling.
No. Standalone ESNT does not require CETa. CETa becomes relevant only if you later upgrade ESNT to Journeyman CET, which also requires at least two years of combined training and experience and a USD 55 upgrade fee.
The certification lasts four years, and maintenance runs separately: submit the maintenance form with either 10 continuing-education hours per year or supervisor-completed Employer Verification, plus USD 25 per year. ETA recommends submitting annually.