ccna r&s exam objectives

ccna r&s exam objectives.. Flooding is performed for the following three types of frames: broadcast (sent to all devices), multicast (sent to a group of devices), and unicast (sent to one device) with an unknown destination address.Chapter 4 Bridges and Switches 854.7 Self-Test QuestionsThe following self-assessment questions will help you gauge your understanding of the content in this chapter. Please read each option carefully, as there may be more than one correct answer. For each self-test question, select all of the correct answers.1.Which of the following devices does not solve conflict problems? A. hub B. switch C. switch and hub D. router and hub conflict problem solution2.Which of the following is NOT one of the three main functions of a Layer 2 device? A. Learning B. Forwarding C. Listening D. Loop avoidance3.Which of the following does a switch flood for traffic? A. multicast B. unicast with a known destination address C. broadcast D. unicast with an unknown destination address4.In the network shown in the top half of Figure 4.2, how many conflict domains and broadcast domains are there? A. 1 conflict domain, 5 broadcast domains B. 5 conflict domains, 1 broadcast domain C. 4 conflict domains, 1 broadcast domain D. No conflict domains, 5 broadcast domainsWhich of the following statements about bridges is true? A. they exchange frames in hardware B. they support half-duplex and full-duplex C. there is only one conflict domain for the entire bridge D. they use only store-and-forward switching6