Certified Internal Auditor (CIA) Part 3: Business Knowledge for Internal Auditing — Question 250

Which of the following statements distinguishes a router from a typical switch?

Answer options

• A. A router operates at layer two, while a switch operates at layer three of the open systems interconnection model.
• B. A router transmits data through frames, while a switch sends data through packets.
• C. A router connects networks, while a switch connects devices within a network.
• D. A router uses a media access control address during the transmission of data, while a switch uses an internet protocol address.

Correct answer: C

Explanation

The correct answer is C because routers are designed to connect different networks, allowing them to communicate, while switches operate within a single network, connecting devices to each other. Options A, B, and D contain incorrect information regarding the OSI model layers, data transmission methods, and address types used by routers and switches.