200-301 Question #1467: Real Exam Question with Answer & Explanation

Question

Lab Simulation 20 Guidelines This is a lab item in which tasks will be performed on virtual devices. - Refer to the Tasks tab to view the tasks for this lab item. - Refer to the Topology tab to access the device console(s) and perform the tasks. - Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window. - All necessary preconfigurations have been applied. - Do not change the enable password or hostname for any device. - Save your configurations to NVRAM before moving to the next item. - Click Next at the bottom of the screen to submit this lab and move to the next question. - When Next is clicked, the lab doses and cannot be reopened. Topology Tasks All physical cabling is in place. A company plans to deploy 16 new sites. The sites will utilize both IPv4 and IPv6 networks. 1. Subnet 10.20.0.0/16 to meet the subnet requirements and maximize the number of hosts - Using the second subnet - Assign the first usable IP address to e0/0 on Sw101 - Assign the last usable IP address to e0/0 on Sw102 2. Subnet 2001:db8::/52 to meet the subnet requirements and maximize the number of hosts - Using the second subnet - Assign an IPv6 GUA using a unique 64-Bit interface identifier on e0/0 on Sw101 - Assign an IPv6 GUA using a unique 64-Bit interface identifier on e0/0 on Sw102 Answer: SB: 10.20.0.0/16 Network ID: 10.20.16.0 Broadcast ID: 10.20.31.255 Subnet: 255.255.240.0 Usable IPs in the subnet = 10.20.16.1 - 10.20.31.254 SW101(config)#ipv6 unicast-routing SW101(config)#interface gigabitEthernet 0/0 SW101(config-if)#no switchport SW101(config-if)#ip address 10.20.16.1 255.255.240.0 SW101(config-if)#ipv6 address 2001:DB8:0:100::1/64 SW101(config-if)#no shutdown SW102(config)#ipv6 unicast-routing SW102(config)#interface gigabitEthernet 0/0 SW102(config-if)#no switchport SW102(config-if)#ip address 10.20.31.254 255.255.240.0 SW102(config-if)#ipv6 address 2001:DB8:0:100::2/64 SW102(config-if)#no shutdown So, the new prefix length will be 52 + 4 = 56. Therefore, the subnets will have a prefix of /56. The subnets will be: 1. 2001:DB8:0:0000::/56 2. 2001:DB8:0:0100::/56 3. 2001:DB8:0:0200::/56 and so on.