Which communication tool allows multiple users to communicate with each other in real time by using a smartphone application or social media site?

Which communication tool allows multiple users to communicate with each other in real time by using a smartphone application or social media site?

• email
• blog
• web mail
• instant messaging

Explanation: Instant messaging (IM) software enables users to communicate or chat over the Internet in real time. IM requires users to log in before they can communicate. Blogs, email, and web mail are asynchronous communication tools.

Exam with this question: 12.7.2 Module 12 - Application Layer Services Quiz