Cisco SDE-1 OA Questions and Solutions | IP Address Validation & Redundant Network Connections

Problem 1 - Validating IPv4 and IPv6 Addresses Problem Statement A network firewall receives incoming IP addresses and must classify them as valid IPv4, valid IPv6, or invalid. Given a string representing an IP address, determine whether it is: IPv4 IPv6 Neither IPv4 Rules: Format: x1.x2.x3.x4 Each block must be between 0 and 255 Leading zeros are not allowed IPv6 Rules: Format: x1:x2:x3:x4:x5:x6:x7:x8 Exactly 8 blocks Each block contains 1 to 4 hexadecimal characters Only digits and letters a-f or ...