Exam IIA-CIA-Part3 Topic 6 Question 27 Discussion

A router and a switch serve different functions in a network.
* A router is responsible for connecting multiple networks together and directing data packets between them. It determines the best path for data to travel using IP addresses.
* A switch, on the other hand, operates within a single network and connects devices like computers, printers, and servers. It uses MAC addresses to forward data within the local network (LAN).
* A. A router operates at layer two, while a switch operates at layer three of the OSI model - Incorrect. A switch operates at Layer 2 (Data Link Layer), while a router operates at Layer 3 (Network Layer).
* B. A router transmits data through frames, while a switch sends data through packets - Incorrect
. Switches use frames at Layer 2, while routers use packets at Layer 3.
* C. A router connects networks, while a switch connects devices within a network (Correct Answer) - This correctly differentiates their functions.
* D. A router uses a media access control (MAC) address during the transmission of data, while a switch uses an internet protocol (IP) address - Incorrect. A switch uses MAC addresses, and a router uses IP addresses.
* IIA GTAG 17 - Auditing IT Governance discusses network security and the role of routers and switches.
* COBIT 2019 - DSS01 (Managed Operations) emphasizes secure and efficient network management.
* NIST SP 800-53 - Security Controls for IT Systems includes guidelines on network architecture and device functionality.
Explanation of Each Option:IIA References: