Which protocol is most commonly used for secure communication between IoT devices over the internet?
MQTT (Message Queuing Telemetry Transport) is a lightweight messaging protocol optimized for use with low-bandwidth, high-latency, or unreliable networks, making it ideal for IoT applications. It uses a publish-subscribe model to facilitate efficient communication between IoT devices. MQTT is preferred in IoT due to its minimal overhead and support for intermittent connectivity. a) HTTP is not specifically designed for low-bandwidth scenarios and is heavier compared to MQTT. b) FTP is used for file transfer and is not suitable for real-time or lightweight communication in IoT. d) SMTP is a protocol for email transmission, not for IoT communication. e) SNMP is used for network management and monitoring, not for IoT communication.
A seller marked his article 70% above the cost price and sold it after offering two successive discounts of 60% and 25% respectively. In the whole trans...
If a commission of 20% is given on the marked price of a work, the publisher gains 40%. If the commission increased to 24%, then find the gain percent?
Sara sold 30 scarves at a profit of 25%. If she had sold all the scarves for Rs. 3000 more, her overall profit would have been 50%. What is the selling ...
The cost price of two articles is same. One article is sold at 29% profit and another at 11% loss. If the selling price of one article is Rs. 600 more t...
A shopkeeper sold an article at the profit of 15% and also while weighing used a weight of 920 gms. in place of 1 kg. Find out his actual total profit%?
A shopkeeper made a profit of 40% by selling an article for Rs. 280. If he had sold it after allowing a discount of 15% on its selling price, then find ...
After applying a discount of Rs. 120 on an item, it was sold at a loss of 20%. If the ratio of the item's marked price to its selling price is 3:2, by w...
Each of the articles is marked 80% above its cost price and a 30% discount was given on it while selling. The selling price of article A is Rs. 126 less...
A bought an article at 40% less of the marked price and sold it at 35% more than the marked price. Find the profit earned by him.
A shopkeeper marked up of a shirt 60% above the cost price and sold at the discount of 25%, and made a profit of Rs.950. If the cost price of pant is 4...
