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Chapter 17
Chapter 17
| A1: | c; The first thing you should do is to ensure the physical connection is functioning. It's useless to employ a host of troubleshooting utilities if the office hub is malfunctioning. |
| A2: | b; In some cases an incorrect subnet mask could cause some computers to become unreachable, while the rest of network remains operational. |
| A3: | d; If you can ping by IP address but not name, the problem is in name resolution. The only name resolution related choice in this question has to do with the HOSTS file. |
| A4: | a; You can use NSLOOKUP to check records, domain host aliases, domain host services, and operating system information by querying the Internet domain name servers. |
| A5: | b; Since you're working with IP addresses, you can discount name resolution problems for now. You can successfully ping the address of your configured default gateway so your machine must be properly configured for the local network. Since you can't get to hosts in remote networks, the problem must be at the default gateway. In this case, the address you were using for a default gateway didn't represent a machine that was configured to route to the external network. |
