Networking Question of the Week By Guest Authors December 22, 2011 The router performs all but one of the following roles: Broadcast control Optimal Path Selection Single collision domain Logical addressing The correct answer is 3. A single collision domain is created by a repeater hub. Related Courses TCP/IP Networking Understanding Network Fundamentals In this article CertificationNetworkingTechnologytcp/ip Join the Conversation Cancel Reply Will not be published. Website Notify me of follow-up comments by email. Notify me of new posts by email.