JKSSB SI Telecommunication Syllabus 2026: Electronics, IT & Topic Wise Practice Questions

JKSSB Sub-Inspector (Telecommunication) is a genuinely different exam from every other JKSSB post, and most generic 'SI syllabus' material online doesn't reflect that.

Part A: the familiar base

• Basic Numeracy
• General Intelligence & Reasoning
• General English & Communication Skills
• General Knowledge (J&K)

Part B: real engineering — where the difficulty lives

Electronics & communication

• Engineering Mathematics & Signal Fundamentals — linear algebra, calculus, differential equations, signals & systems
• Electronic Devices, Analog Circuits & Network Theory
• Digital Electronics, Microprocessors & Microcontrollers
• Communication Systems — analog & digital, antennas, mobile & wireless

Computer science & IT

• Computer Science & Networking — OSI model, programming fundamentals
• Cyber Security & Legal Framework
• IT Systems & e-Governance
• Database Management Systems
• IoT, Embedded Systems & Mechatronics
• AI & Data Science fundamentals

Why generic material doesn't work

Generic SSC or SI question banks are close to useless for Part B. MockNPrep's Practice by Exam covers both parts of the official SI Telecom syllabus, split into these sub-topics with Easy/Medium/Hard sets.

No previous-year papers? That's expected

Very little previous-year material exists yet for Part B of this post. Topic-wise questions built from the official syllabus are the most reliable substitute until more solved papers circulate.

Questions candidates ask

Is the written test the only stage? Check the notice for your post. The board may add other stages, so confirm the selection process.

Which part should I start with? The part where your last diagnostic score was lowest.

Is mathematics tested at degree level? Check the syllabus. Engineering mathematics and signals are listed, so revise the basics of linear algebra, calculus and differential equations.

What books should I use? Use standard textbooks from your diploma or degree and then solve multiple-choice questions.

One more point to remember

Keep a formula and definition notebook for each technical topic. In revision, test yourself on the notebook, not on the textbook.

Check where you stand

Take the free JKSSB Sub-Inspector (Telecommunication) diagnostic test: 20 questions in 15 minutes, a score by subject, and the topics to work on first, with links to our practice questions for each.

Work out which half to study first

The syllabus has two very different parts. Part A is the general paper that most JKSSB candidates know: numeracy, reasoning, English and J&K general knowledge. Part B is technical. Spend a few days on a topic from each of the technical halves, check your score, and then give more time to the half where you score lower.

A study plan by background

• If you studied electronics or communication: start with computer science and networking, databases, cyber security and e-governance, then revise signals, circuits and communication systems
• If you studied computer science or IT: start with electronic devices, analog and digital circuits, network theory, signals and communication systems, then revise databases and networking
• If you come from another branch: begin with the basics of both halves, since the questions are usually at diploma or early degree level

What each technical topic tends to test

• Network theory and analog circuits: laws, theorems and basic device behaviour
• Digital electronics and microprocessors: logic gates, number systems, flip-flops, memory and basic instruction ideas
• Communication systems: modulation, antennas, transmission and mobile communication concepts
• Networking: the OSI model, IP addressing and subnetting, and common protocols
• Databases: SQL basics, keys and normalisation
• Cyber security and law: common attacks, encryption basics and the IT Act
• IoT and embedded systems: sensors, microcontrollers and communication between devices
• AI and data science: basic terms and uses, not research-level material

A twelve-week outline

• Weeks 1 to 4: Part A, with 30 minutes of J&K general knowledge every day
• Weeks 3 to 8: Part B, one technical topic every two to three days, with a short set after each
• Weeks 9 to 10: mixed technical sets and revision of weak topics
• Weeks 11 to 12: full-length mocks and retests of wrong answers

Use the topic pages

For networking, you can start with the subnetting and IP addressing questions and then work through the other technical topics on the topic pages.