8. If you subdivide your Class B network into 254 subnets, what is the maximum number of hosts you can assign to any single subnet?
2. What is the default subnet mask for a Class A network?
16. When you use the mtr command to assess the path from your office workstation to a server on your company's WAN that's located in Spain, what is the first hop the mtr command will display?
6. If you worked on an older network that could not interpret classless addressing, and your network ID was 126.96.36.199, what is the theoretical maximum number of different subnets you could create on this network?
4. On a network with an IP address of 188.8.131.52 (or 10001100 10000101 00011100 01001000) and a subnet mask of 255.248.0.0 (or 11111111 11111000 00000000 00000000), what is the network ID?
20. Which of the following commands reveals the default gateway addresses for all the hosts to which a router is connected? → a. netstat -r e. route
5. As a networking consultant, you've been asked to help expand a client's TCP/IP network. The network administrator tells you that the network ID is subnetted as 184.108.40.206/26. On this network, how many bits of each IP address are devoted to host information? → 255.0.0.0
18. Suppose your office's only DNS server was down, and you wanted to view the DNS address record for your company's domain. Which of the following TCP/IP utilities would allow you to do this? → a. dig
17. If you know that your colleague's TCP/IP host name is JSMITH, and you need to find out his IP address, which of the following commands should you type at your shell prompt or command prompt? → a. nslookup jsmith
9. Your company has leased a Class C network whose network ID is 220.127.116.11. You want to create 16 subnets within this network. One of the subnets will have an extended network prefix of 18.104.22.168. What will be the broadcast address for this subnet? (Hint: If you know the number of hosts per subnet, you can easily determine the broadcast address.) → b. 254