... 195-196configurationbacking up, 242 - 244 copying to NVRAM, 243 - 244 copying to TFTP server, 244 erasing, 245 exam essentials, 246 restoring, 244 - 245 verifying current, 242 - 243 verifying stored, 243 HDLC configuration ... 149 , 309, 340 - 342 advantages/disadvantages of, 341 configuration, 341 SDM and, 344 - 345 dynamic, 342 configuration, 343 exam essentials, 345 , 346 overloading, 342 command, 346 configuration, 343 static, ... 261-266Frame Relay, 368-369, 369IP addressing, 43 -50, 44 , 179, 179-1 84 diagnostic steps, 43 , 180-181, 1 84 ping command for, 43 -45 , 180-181NAT, 345 , 345 - 346 , 346 OSPF, configure/verify and, 252-261RIPv2,...