200-301 practice questions

200-301 practice questions.interfaceGigabitEthernetO/1.2encapsulation dotlq 2ip address 10.1.3.65255.255.255.192In this use case, the hosts in VLAN 1 that intend to use DHCP can assume that the host at address 10.1.2.130 is the DHCP server. However, hosts in VLAN 2 will not be able to use DHCP to obtain settings because of the missing ip helper-address command. Router LAN Interface and LAN ProblemsSometimes, the problem isolation process may show that the host cannot ping its default router, and vice versa. That is, neither device between the two devices can send IP packets to the other on the same subnet. This basic test tells the engineer that the router, the host, and the LAN out between them are for some reason unable to transmit Ethernet-encapsulated packets between the two devices.The source of this basic LAN connectivity problem can be divided into two categories.Problems that cause the router LAN interface to fail.Problems with the LAN itself.The LAN interface must be in a working state before the router can try' to send packets from its LAN interface (or receive packets from that interface). In particular, the router LAN interface must be in the up/up state. If it is in any other state, the router will not use this interface to forward packets. So, if a ping from the router to the same LAN host fails (and vice versa), . Check the status of the interface, and if the status is not up, look for the root cause of the router interface not being in the up state.Next, the router interface is in the up/up state, but the problem exists on the LAN itself/ In this case, all topics related to Ethernet LANs could be contributing to the problem. All of these topics were reviewed one by one in Chapter 3, such as Ethernet cable pin assignments, port security, and even the spanning tree protocol could be the root cause of the LAN problem.