| Q1: | What is a domain name? |
| A1: | It is a name that is administered by a central authority to ensure the name's uniqueness. The first part of the name identifies or is related to a company or organization. The second portion of a domain name is a suffix such as .com, .gov, or .edu that provides a means of classification. |
| Q2: | What is a hostname? |
| A2: | It is a single name that is assigned to a particular host. Usually the hostname has some meaning such as location, usage, or ownership. |
| Q3: | What is an FQDN? |
| A3: | A combination of a hostname concatenated to a domain name by the addition of a dot character. For example, a hostname bigserver and a domain name mycompany.com when combined become the FQDN bigserver.mycompany.com. |
| Q4: | What are DNS resource records? |
| A4: | Resource records are the entries contained in a DNS zone file. Different resource records are used to identify different types of computers or services. |
| Q5: | What type of resource record is used for an alias? Why are aliases used? |
| A5: | CNAME; it is used to represent the real name of a computer on a network. |
| Q6: | What is a caching-only server? |
| A6: | A caching-only server responds to queries from clients on the local network for name resolution requests and stores that information in its cache in case a request for that information is made again. Caching-only servers are not registered as DNS servers, so other DNS servers don't know about them and therefore won't query them. |
| Q7: | What is the role of a resolver? |
| A7: | A resolver passes name resolution requests between the applications on a system and DNS servers. |
| Q8: | How do you centrally administer entries in an LMHosts file? |
| A8: | You can implement centralized administration by adding several lines to the LMHosts files found on each local computer. A line that starts with #INCLUDE and contains a UNC name of an LMHosts file located on a server provides a link to the central file. |
| Q9: | How can you create static NetBIOS entries in the NetBIOS name cache? |
| A9: | By using the keyword #PRE on the line of the desired entry in an LMHosts file. |