Close Window Assessment System   1. Assessment Selection     2. Assessment Settings     3. Take Assessment   Take Assessment - Voucher Exam - CCNA 4 WAN Technologies (Version 3.1) Time Remaining: 61 Which of the following do switches send at regular intervals to eliminate switching loops? bi-directional protocol data units binary protocol data units bridge protocol data units buffered protocol data units 62 What reduces the problems of routing loops due to incorrect updates? count to infinity distance vector timers event-triggered updates split horizon 63 Routers and switches both perform important tasks in an internetwork. Which of the following are distinguishing differences between them? (Choose two.) Routers are used more often in LAN topologies than switches. Routers do not require an initial configuration to operate but switches do. Routers and switches operate at different layers of the OSI model. Routers and switches route different sets of protocols. Routers block broadcasts but switches forward broadcasts. 64 When must data be sent by way of the default route? The destination network is on a different network than the source. The destination network is not directly connected to the router. The destination network is a stub network. There is no entry in the routing table for the destination network. 65 What is an advantage of the use of layers in the OSI reference model? It breaks network communications into larger parts. It increases complexity. It prevents changes in one layer from affecting other layers. It requires the use of single-vendor equipment for hardware and software communications. Showing 5 of 5 <Prev Page: Introduction 1 2 3 4 5 Submit Next> Close Window All content copyright 1992-2007 Cisco Systems, Inc. Privacy Statement  and  Trademarks.

评论