Q. What is CIDR?
A. Classless Internet domain routing is used in conjunction with classless routing protocols to summarize the Internet into smaller routing tables.
Q. What is VLSM?
A. Variable Length Subnet Mask is used to allocate the amount of address space required by the end network.
Q. What is a class D IP address?
A. Class D addresses are multicast addresses.
Q. What addresses do multicasts start with?
A. Multicasts start with the address 224.0.0.0.
Q. Which name resolution system is implemented with TCP/IP by default?
A. Although WINS is a name resolution that is implemented by TCP/IP by default, it only works on Windows-based networks. The only true name resolution system that almost every TCP/IP networks uses is DNS.
Q. You are the administrator of a 100-station Ethernet network. Your users are complaining of slow network speeds. What could you replace your hub with to increase your network throughput?
A. A switch would increase performance by making virtual, direct connections between sender and receiver. A bridge and router would actually decrease performance because these devices introduce latency into the communication.
Q. Which TCP/IP utility is most often used to test whether an IP host is up and functional?
A. The Ping utility is the most often used TCP/IP utility because it allows you to test individual hosts.
Q. Which utility can you use to find the MAC and TCP/IP address of your Windows NT or 2000 workstation?
A. The ipconfig utility is available for both these operating systems. It displays information like the MAC and TCP/IP address of your workstation as well as other TCP/IP configuration information.
Q. Which utility can you use to verify a packet’s path?
A. The tracert utility traces the route from the source IP host to the destination host.