ECA244-291-4
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- What is an iterative query?
- The DNS resolver on the server computer queries the local DNS servers which are located on the same computer.
- What is a recursive query?
- The client aks the surver to query other DNS servers until it receives an answer.
- What is Nslookup?
- It is a command-line tool provided with TCP/IP that perform queries and enable examination of the content of zone files on local and remote servers.
- How can Nslook up be run?
- Eithr at the command prompt or as a program that accepts serial commands and queries (interctive mode)
- What are the Nslookup syntax possibilites?
- -opt, Host and Server
- What does the -opt nslookup syntax do?
- specifies one or more Nslookup subcommands as a command-line option
- What does the Host nslookup syntax do?
- It looks up information for Host using the default DNS name server, if no other server is specified.
- What does the Server nslookup syntax do?
- It specifies to use this server as the DNS server. If you omit Server, the default DNS name server is used.
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What does
DNSLint do? - It verifies the consistency of a particular set of DNS records on multiple DNS servers. It can also help diagnose and fix problems as a result of missing or incorrect records.
- What are the switches available in DNSlint?
- /d - used to test a particular DNS domain name for lame delegation /ad -Used to test DNS records responsible for active Director forest replication, and /ql - used to dest DNS records specified in a text input file.
- What kidns of things can you do with DNScmd?
- You can create, delete, and view zones and records. Resewt server aqnd zone properties, perform zone maintenance operations, clear the cache, stop and start the DNS server and view statistics
- What is the command to display a complete list of the zones configured on a DNS server?
- DNScmd[computerName]/enumzones
- Why wouold you disable recursion?
- When you want to create an authoritative-only name server and prevent cache pollution.
- What are multihomed computers?
- Computers with either more than one network interface card or one network interface card with more than one IP address.
- What is Round robin?
- A load balancing mechanism used by DNS servers to share and distribute network resource loads.