Core(config-router)# default-information originate Core(config-router)# network 10.10.2.16 0.0.0.15 area 0 Core(config-router)# exit Leading the way in IT testing and certification tools, Core(config)# ip route 0.0.0.00.0.0.010.10.2.14ī. A default route on the ISP router would send all of their customers Internet traffic to the TestKing network, and not the Internet. Interior routing protocols are generally not supported with an ISP.Ĭ. In turn, the ISP only needs a specific static route to reach the LAN of the TestKing network.Ī, D: BGP is not needed on networks that contain only a single link to the Internet.ī. A static default route would be needed on router TK1 to route to the Internet.
In this case, since there is only one connection to the Internet, BGP is not needed so choices A and D can be eliminated. When connecting to an ISP, usually only BGP or static routes are supported. Since private network use RFC 1918 IP address ranges internally, and because of security reasons, it is generally not possible to use an interior routing protocol with the ISP. A default route on TK1 and a static route on the ISP router. BGP on the ISP router and a static route on TK1.Į. What routing configurations are recommended on the TK1 and ISP routers?ĭ. Leading the way in IT testing and certification tools, The TestKing network consists of a small office with twenty-five employees that has one connection to the Internet through the TK1 router. The TestKing network is displayed in the diagram shown below: Section 9: Describe the components required for network and Internet communications (5 questions) If the switch determines that the frame is not on the MAC table, the frame is forwarded out to all ports except the incoming port. If the frame is on the MAC table the frame is filtered or transmitted on only that port. By checking the MAC table the switch/ bridge are able o determine which port the frame came in on. When a switch or bridge is listening o the network traffic, it receives each frame and compares it to the MAC address table. Another name for the MAC address table is content addressable memory orĢ. This creates a MAC address to port map that is cataloged in the switches/bridge MAC database. The switch or bridge listens to each device connected to each of its ports and scan the incoming frame for the source MAC address. MAC address learning by a switch or a bridge is accomplished by the same method. To accomplish the above functions switches and bridges carry out the following tasks:ġ. Being able to listen to the traffic also allows the switches and bridges to compile a MAC address table to better filter and forward network traffic. Because the switches and bridges are able to listen to the traffic on the wire to examine the source and destination MAC address. Since Switches and Bridges operate at the Layer 2 they operate more intelligently than hubs, which work at Layer 1 (Physical Layer) of the OSI. Switches and Bridges operate at the Data Link Layer of the Open System Interconnect Model (OSI). Local Area Networks employ Layer 2 Switches and Bridges to forward and filter network traffic. Switches use the destination MAC address information for forwarding traffic, while routers use the destination IP address information.