# All OT topics in one: Defender for IoT + Nozomi Source: https://ai.techclick.in/blog_ot_security_microsoft_nozomi_all_topics Markdown: https://ai.techclick.in/blog_ot_security_microsoft_nozomi_all_topics.md Publisher: Techclick Infosec Pvt Ltd All 24 Techclick OT lessons in one map: Microsoft Defender for IoT, Nozomi Guardian to Arc, study order, and which page to open for each plant ticket. ## Why one map Hero · two libraries, one SPAN Microsoft OT and Nozomi are two libraries. The plant still has one mirror port. Learn the shelves in order, then pick a stack. The comparison lesson answers “which platform.” It does not replace Purdue, sensor placement, inventory, engines, Sentinel, Guardian, CMC, Vantage, or Arc. Those are already written as 24 Techclick pages. This page is the index you open first so you do not start at Interview Q&A with no SPAN story. Quick answer — say this out loud There are 11 Microsoft Defender for IoT lessons, 12 Nozomi lessons, and 1 comparison. Start at Purdue, then the sensor, then detection, then the SOC console. Open the comparison when you must choose a vendor. Open interview Q&A last. Hard words: SPAN/TAP is a packet copy, not inline. OT network sensor is Microsoft’s name. Guardian is Nozomi’s sensor. CMC is on-prem multi-sensor manager. Vantage is Nozomi SaaS. Arc is the host sensor. Microsoft’s on-prem management console is retired after 1 January 2025 — that fact lives in architecture, not in the overview. ## How to use this page Study journey Same four stages on both vendors. Only the product names change after “Sensor.” Flow 1 · one order for both vendors Purdue then sensor then detect then SOC - 1 Purdue Where SPAN hangs 2 Sensor Place, size, inventory 3 Detect Engines, CVE, TI 4 SOC Sentinel / Vantage Do not jump to SOC workbooks before the sensor has a legal mirror. Each row below is one lesson. The “Walk out able to” column is the promise. The link is the deep page. Use this table as the class syllabus; do not paste twenty URLs into a WhatsApp without the order. ## All Microsoft Defender for IoT topics # Topic Walk out able to Lesson M1 Overview Explain agentless OT monitoring vs EDR on a laptop. Overview · 16 min M2 Purdue model Mark SPAN on Level 2 and stop treating Level 0 as a packet problem. Purdue & segmentation · 17 min M3 Architecture Name Azure portal vs OT sensor vs retired on-prem console (1 Jan 2025). Architecture · 16 min M4 Network sensors Describe passive DPI and on-box analytics; SPAN vs TAP. OT network sensors · 16 min M5 Deployment Place and size a sensor without sitting inline on the process path. Deployment · 16 min M6 Device inventory Read IP+MAC inventory; inactive after 60 days with no traffic. Device inventory · 16 min M7 Protocols & alerts Tune OT protocol alerts without dropping Modbus 502 in a capture filter. Protocols & alerts · 16 min M8 Threat detection Name the five engines (protocol, policy, malware, anomaly, operational). Threat detection · 16 min M9 Vulnerability management Match CVEs to discovered OT assets without scanning Level 1. Vulnerability management · 16 min M10 Sentinel integration Install the Defender for IoT solution and land OT incidents in the SOC. Sentinel · 16 min M11 Interview Q&A Answer plant scenarios without mixing Enterprise IoT and OT sensors. Interview Q&A · 18 min Primary source for names and engines: Microsoft Learn — OT architecture . CLI proof lives in the architecture and sensor lessons: system sanity , network validate . ## All Nozomi Networks topics # Topic Walk out able to Lesson N1 Platform overview Separate Guardian, Vantage, CMC, and Arc in one sentence each. Overview · 16 min N2 Guardian Place a passive Guardian on SPAN/TAP and read topology. Guardian deep dive · 17 min N3 Asset discovery Build inventory and call out rogue/silent devices without a blind Nmap. Asset discovery · 16 min N4 Deployment architecture Map Guardian to Purdue the same way you map a Microsoft sensor. Deployment architecture · 16 min N5 Remote collector / air-gap Ship packets from a dark site without putting the manager on the internet. Remote collector · 17 min N6 CMC Use CMC as the living multi-sensor manager when cloud is forbidden. CMC · 15 min N7 Vantage Know when SaaS Vantage is the right manager vs CMC. Vantage · 16 min N8 Arc endpoint Cover the engineering laptop the network sensor cannot see. Arc · 16 min N9 Anomaly & threat detection Baseline vs signatures; do not treat every anomaly as malware. Anomaly detection · 16 min N10 Threat intelligence Say what TI / Asset Intelligence add on top of Guardian. Threat intelligence · 16 min N11 Vulnerability management Score OT CVEs from inventory, not from a Level 1 scan. Vulnerability management · 16 min N12 Interview Q&A Defend Guardian vs Vantage vs CMC vs Arc in an interview. Interview Q&A · 16 min Primary source for component names: Nozomi Guardian , CMC, Vantage, Arc, Smart Polling. Smart Polling is optional active traffic — it is not a default in any of these lessons. ## Comparison and which track first Ticket → which shelf If the SOC already lives in Sentinel, start the Microsoft track. If the site is air-gapped or host-blind, start Nozomi. Then read the comparison before procurement. Flow 2 · which URL for this ticket Fork from ticket type to lesson What is the ticket? Empty inventory M5 / N4 deployment No cloud allowed M3 local / N6 CMC SOC wants one pane M10 Sentinel / N7 Laptop on Level 2 N8 Arc + comparison Vendor choice → comparison lesson Comparison is a decision page, not a substitute for M2 Purdue or N2 Guardian. The 25th URL on this map is the comparison you already have: OT Security 2026: Defender for IoT vs Nozomi (22 min). Open it after M3+N1, or when procurement asks for a single winner. If the student is… Open first Then Microsoft SOC batch M1 → M2 → M3 M5 deployment, M8 engines, M10 Sentinel, comparison last OT plant / CIP / air-gap N1 → N2 → N4 N5 collector, N6 CMC, N8 Arc, comparison last Interview in 48 hours Comparison + M2 Purdue M11 and N12 Q&A — not all 24 pages ## Study path — one sitting or eight classes Proof · map complete Done is not “opened 24 tabs.” Done is: Purdue drawn, sensor not inline, one SOC landing named. ### Side A — one sitting (this page + 3 deep dives) #### Read this map 45 minutes with the tables. Write M2, M3, N1, N6, N8 on paper. - #### Pick one vendor deep Microsoft: architecture + Sentinel. Nozomi: Guardian + CMC. Source: the linked lessons above. - #### Close with comparison Defender for IoT vs Nozomi — one because-sentence for your plant. ### Side B — eight-class Microsoft track Class 1 M1+M2 · Class 2 M3+M4 · Class 3 M5+M6 · Class 4 M7+M8 · Class 5 M9 · Class 6 M10 · Class 7 comparison · Class 8 M11 interview. ### Side C — eight-class Nozomi track Class 1 N1+N2 · Class 2 N3+N4 · Class 3 N5+N6 · Class 4 N7 · Class 5 N8 · Class 6 N9+N10 · Class 7 N11 + comparison · Class 8 N12 interview. Pilot proof for the map itself - Student can list 11 Microsoft topics without looking. - Student can list Guardian, Vantage, CMC, Arc without saying “Nozomi console” as one blob. - Student does not recommend the retired Microsoft on-prem console for a 2026 sensor. - Student opens deployment (not interview Q&A) when inventory is empty. ## Wrong-page traps Symptom Wrong page Open this Empty asset list Interview Q&A M5 / N4 deployment, then M6 / N3 inventory “Put the sensor on the PLC port” Overview only M2 Purdue + M5 / N4 — never inline Air-gap, wants one pane M10 Sentinel only M3 local sensor + N6 CMC Contractor laptop on Level 2 M8 engines only N8 Arc (or Defender for Endpoint on the laptop) + comparison SOC has no OT incident N2 Guardian only M10 Sentinel, or Nozomi marketplace/syslog Printers and TVs OT sensor overview That is Enterprise IoT / Defender for Endpoint — different product Nmap “to fill inventory” Vulnerability lessons used as a scanner Passive first; Smart Polling only with operations sign-off Class design mistake Do not teach all 24 URLs in one 60-minute session. Teach this map in 18 minutes, then one deep dive. Homework is two linked lessons, not the whole library. #### 24 pages 11 Microsoft + 12 Nozomi + 1 comparison. #### Order Purdue → sensor → detect → SOC → interview. #### Microsoft unique Five engines, Azure portal, Sentinel solution, retired console. #### Nozomi unique CMC, Vantage, Arc, Guardian Air, optional Smart Polling. Techclick CTA: Use this map as the OT module index for the batch. WhatsApp +91 92772 29456 · ai.techclick.in · exams exam.techclick.in . ## Knowledge check Six items on which topic to open. Not “what is Guardian?” Q1 A student starts the OT module at Microsoft Interview Q&A and cannot draw where SPAN attaches. What do you assign first? Stay on interview Q&A — scenarios will teach Purdue. M2 Purdue model, then M3 architecture, then come back to Q&A. N12 Nozomi interview Q&A instead. Only the comparison page. Skip vendor tracks. Correct: b . Interview last. Purdue is M2. Comparison does not replace the SPAN drawing. Re-read how to use this page. Q2 Plant forbids cloud. They have twelve Nozomi sensors and want one pane. Which row on this map? N7 Vantage — SaaS is always the multi-site answer. M10 Sentinel only — send everything to Azure. N6 CMC, with N5 remote collector if the site is dark. Microsoft on-prem console is retired. M1 overview — it mentions air-gap so you are done. Correct: c . CMC is the air-gap manager. Vantage is SaaS. Microsoft’s central on-prem console is retired after 1 Jan 2025. Re-read Nozomi topics N5–N6 and Microsoft M3. Q3 SOC already runs Sentinel. Inventory is empty after “deploying” a VM. Which two Microsoft rows, in order? M10 Sentinel then M11 interview. M5 deployment (SPAN/TAP, not inline) then M6 inventory. M8 threat detection then M9 vulnerabilities. N8 Arc — the VM has no packets because Arc is missing. Correct: b . Empty inventory is almost always no mirror or wrong NIC, not a missing Sentinel workbook. Arc is a host sensor, not a substitute for SPAN. Re-read traps. Q4 Contractor laptop speaks Modbus then leaves. Network DPI saw the IP. Which Nozomi topic covers the host the SPAN missed? N7 Vantage — cloud will invent process names. N11 vulnerability management — CVE lists the laptop. N8 Arc endpoint sensor, then the comparison if they also have Defender for Endpoint. M6 device inventory only — IP+MAC is enough for a court case. Correct: c . Network inventory is IP+MAC. Process/user context is Arc or an IT EDR on the laptop. Re-read N8 and the comparison link. Q5 Procurement wants one winner this week. Student has not read Purdue. What is the allowed shortcut on this map? Comparison only. Skip Purdue forever. M2 Purdue plus the comparison; full 24-page read is not required this week. All 12 Nozomi pages before any Microsoft page. M11 and N12 interview Q&A back to back. Correct: b . Interview-in-48-hours path on this page is comparison + Purdue, not skipping SPAN theory. Re-read “which track first.” Q6 How many deep lessons does this map contain, not counting this index? 11 Microsoft + 12 Nozomi + 1 comparison = 24. Two: Microsoft overview and Nozomi overview. Eight, because the class path has eight days. Unknown — vendors rename pages every month so never count. Correct: a . 11+12+1. Eight is the teaching calendar, not the page count. Re-read the two topic tables. Check answers Reset ## Sources - This index links the 24 existing Techclick lessons listed in the tables (Microsoft Defender for IoT series + Nozomi series + comparison). - Microsoft Learn — OT architecture , What’s new , on-prem console retirement . - Nozomi — Guardian , CMC , Vantage, Arc, Smart Polling. - NIST SP 800-82 Rev. 3 — OT security guide (Purdue / ICS context). Related hub lesson: Defender for IoT vs Nozomi comparison --- Cite this Techclick lesson with the source URL. Do not invent fees, batch dates, or job guarantees. Browse all lessons: https://ai.techclick.in/blogs AI index: https://ai.techclick.in/llms.txt