ccna 200-301 network simulator ns2 serves reviews

ccna 200-301 network simulator ns2 serves reviews.42.Solution: CE QUESTION Q: Referring to the diagram in Question 38, Host 1 has just booted up and is requesting a web page from Web server webserver2. Which two statements describe the process that Host 1 uses to send the request to server webserver2 (choose two)? Host 1 and the web server are on the same subnet, and the two hosts can communicate directly with each other without going through a router. Host 1 polls the local ARP cache, which is empty because Host 1 has just been powered on. webserver? responds to host 1's ARP query packet, and host 1 learns the MAC address of server webserver2 and directly encapsulates the MAC address and IP address of webserver2.and IP address of webserver2. The correct answer is C and E. The correct answer can also be found by elimination, because the process here has nothing to do with router R1, and the correct answer can be found by eliminating options A, B, and D that mention router R1.43. Solution: DThe question asks: A receiving host calculates the checksum of a frame, finds that the frame is corrupted, and the frame is discarded. When you think of frames, you should think of the data link layer, where the header and the tail of the frame are enclosed, and the tail of the frame is the CRC (cyclic redundancy check), which is used to verify that there are no errors in the transmission of the frame, and if there are errors, the frame is discarded.70'44. Solution: Question E: When troubleshooting a network connection problem, an engineer observes that the NIC indicator on the workstation and the indicator on the port where the workstation is connected to the switch are both on steady, however, when the ping command is executed on the workstation, the output message is "Request timed out. ", asking at which layer of the OSI model this problem is most likely to occur? Since the indicators on both the workstation and the switch are on, this means that there is no problem with the physical layer, there are no EthernetThe most likely cause of the ping failure is at the network layer, such as an IP address configuration error code.45. Solution: DQuestion Q: Referring to the diagram, an engineer troubleshoots a network connection problem and the host cannot ping through to the server connected to switch A. Based on the test results, what could be the problem? The host ping 127.0.0.1 is successful, indicating that the TCP/IP stack has been successfully installed, the host ping itself can pingffi,indicating that the host's network card is normal, from the diagram can be seen that the IP address of the host and router interface is correctly configured, indicating that the configuration of the network layer is correctThe most likely reason is that there is a problem with the connection from the host to the router, which is a problem with the physical layer. The most likely answer is that there is something wrong with the local physical layer.