BCA 403T Internet of Things Notes for GGSIPU BCA Sem 7

Written by Prateek Talwar, Founder, Unnati Educations · Reviewed by Ritik Rawat, B.Tech, Senior Full Stack Developer · Checked against the BCA Scheme of Examination and Syllabi, 19 Aug 2026 · Updated 13 October 2026 · Editorial policy

Scheme: BCA four-year scheme 2024-25 | Applies to: 2024-25 batch onwards | Verified against: BCA scheme and syllabi, 19 Aug 2026

BCA 403T Internet of Things (IoT) at a glance: GGSIPU BCA Sem 7 credits, units and exam pattern

The paper-setter pattern totals 75 marks, but the Semester 7 table lists 60 end-term marks; the PDF does not explain the match. End-term minimums and re-appear rules are in GGSIPU Ordinance 11.

BCA 403T is an elective, listed with BCA 401T E-Commerce. See all GGSIPU BCA Semester 7 papers.

BCA 403T Internet of Things Notes unit-wise: 9 Arduino and ESP32 programs, 48 short and 41 long exam questions across 4 units

These BCA 403T Internet of Things IPU notes follow the official unit order, each unit closing with Important Questions and a Quick Revision Table. Other papers: GGSIPU BCA notes.

The official PDF gives no unit titles, so headings use the notes' titles. Sample pages: see the sample PDF above.

void setup() { pinMode(13, OUTPUT); }
void loop() {
  digitalWrite(13, HIGH); delay(1000);
  digitalWrite(13, LOW);  delay(1000);
}

void setup() { pinMode(13, OUTPUT); }
void loop() {
  digitalWrite(13, HIGH); delay(1000);
  digitalWrite(13, LOW);  delay(1000);
}

RFID components, working and tag types in IoT hardware: excerpt from page 28 of the BCA 403T notes

BCA 403T exam corner: 48 two-and-a-half-mark and 41 twelve-and-a-half-mark practice questions by unit

Each unit lists "2.5 Marks" and "12.5 Marks" questions without separate answers.

The BCA 403T notes list 48 short-answer (2.5 Marks) and 41 long-answer (12.5 Marks) practice questions across 4 units, plus 9 Arduino and ESP32 programs.

1. Unit 1: Explain ETSI M2M architecture; differentiate M2M and IoT. Pointer: three domains, then the 10-row table (pages 14 and 15).
2. Unit 2: Compare Arduino and Raspberry Pi. Pointer: ATmega328P vs Cortex-A72 with Linux; Pi has no ADC (pages 33 to 36).
3. Unit 3: Explain hidden and exposed terminal problems. Pointer: A-B-C diagram, RTS/CTS fix (page 40).
4. Unit 4: Explain IoT security challenges and layer-wise attacks. Pointer: attack table, MQTT over TLS, Mirai (pages 60 and 61).

85 more are in the book. Practise more with the BCA 403T important questions.

Who writes and checks the BCA 403T IoT notes?

• Prateek Talwar, author: Founder, Unnati Educations; Associate Company Secretary (ACS), ICSI, since 2019; B.Com, University of Delhi (SOL), 2012. Author bio
• Ritik Rawat, subject reviewer: B.Tech; Senior Full Stack Developer, Unnati Educations; reviews the BCA and B.Tech notes. Reviewer bio

The 2026-27 edition of these GGSIPU BCA Sem 7 Internet of Things notes follows the syllabus approved on 19 August 2026 and was last updated on 13 October 2026 under our editorial policy.

Doubts on any BCA 403T page go to the team that prepares GGSIPU important questions for every course.

Do the BCA 403T notes cover the full GGSIPU syllabus?

Yes. Every topic in the four official BCA 403T units has its own section; our unit check found no gap.

Official source: BCA Scheme of Examination and Syllabi, batch 2024-25 onwards.

Page 33 also uses the syllabus spelling "NetArduino" for Netduino. Every course in GGSIPU notes is mapped this way.

How to write BCA 403T answers: layer diagrams, comparison tables and short Arduino sketches

BCA 403T answers score on structure more than length. Q1 has ten 2.5-mark parts, so each short answer needs a definition, one named example and, where it fits, a two-point comparison. For "Define IoT", the notes suggest the ITU-T definition, the formula (things + sensors and actuators + connectivity + cloud + analytics + applications) and an example such as a street light that switches on by itself at dusk.

The 12.5-mark questions reward diagrams. For architecture, draw the 5-layer stack, give each layer three or four lines with an example, then add ITU-T's management and security capabilities. In Unit 2, name real parts (LM35, DHT11, PIR, MQ-2) instead of "a sensor". For routing, draw the classification tree, explain LEACH with its data-flow figure and add RPL's DIO, DIS and DAO.

Code questions in Units 3 and 4 need only the skeleton, not a full sketch: include the libraries, connect Wi-Fi in setup(), read the sensor and send it to ThingSpeak or an MQTT broker in loop(), and explain each block in a line.

Common slip: one diagram and stop. The tip on page 72 asks for at least two, architecture and control flow. Practise this format on GGSIPU BCA important questions.

BCA 403T and the GGSIPU BCA Sem 7 papers it connects to

Unit 3 programs 1 to 6 (pages 50 to 55) match typical lab tasks; Unit 4 adds three more.

Other Semester 7 papers: BCA 401T E-Commerce, BCA 401P E-Commerce Lab, BCA 405 Major Project-1 and BCA 461 Vocational Course (NUES). An IoT topic for BCA 405 can start from the Unit 4 street light design.

BCA 403T IoT notes FAQs

Get the full BCA 403T Internet of Things Notes on WhatsApp

The complete BCA 403T book is a printed book only, not a PDF, written in English: your Internet of Things notes in English for revision.

73 pages, 37 figures, a Quick Revision Table per unit. The WhatsApp desk confirms price, payment and delivery.

Order the printed BCA 403T Internet of Things Notes book on WhatsApp (4 units, 73 pages)