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Exam 8: Name Resolution on Ip Networks

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Question 21

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Match each item with a statement below. a.A record b.Link-Local Multicast Name Resolution (LLMNR) c.Peer Name Resolution Protocol (PNRP) d.caching-only server e.CNAME record f.SOA record g.delegation of authority h.multihomed i.pointer record -a type of server that is used only to cache already resolved domain names and addresses, as well as related error information

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Question 22

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Briefly discuss how to use nslookup with IPv6.

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When you type nslookup at the command pr...

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Question 23

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Match each item with a statement below. a.A record b.Link-Local Multicast Name Resolution (LLMNR) c.Peer Name Resolution Protocol (PNRP) d.caching-only server e.CNAME record f.SOA record g.delegation of authority h.multihomed i.pointer record -a name resolution protocol used for peer-to-peer network environments and that provides secure and scalable resolution services

Briefly define six of the nine most commonly used resource record types.

Domains (such as ibm.com) can be broken into subdomains (such as clearlake.ibm.com), as needed.

Which of the following processes permits a DNS server to keep track of which IP addresses it has provided most recently for a specific translation and to rotate the IP addresses within the pool?

Which type of resource record is used to create aliases?

What is the purpose of the destination address selection algorithm?

Which process provides a mechanism whereby DNS can attempt to satisfy name resolution requests locally before attempting them remotely, thereby greatly improving the speed of such name resolution?

Which resource record lists the IP-based services, such as Telnet, FTP, HTTP, and so forth, that an Internet host can supply?

Data associated with domain names, address records, and other specific data of interest to the Domain Name System is stored on a DNS server in special database records called which of the following?

Which of the following is responsible for initiating and sequencing DNS queries that result in name resolution for an application running on the computer?

Not all the data in a DNS cache has an expiration value.

Match each item with a statement below. a.A record b.Link-Local Multicast Name Resolution (LLMNR) c.Peer Name Resolution Protocol (PNRP) d.caching-only server e.CNAME record f.SOA record g.delegation of authority h.multihomed i.pointer record -a DNS resource record that's used for inverse lookups to map numeric IP addresses to domain names

What are the files called that map addresses to domain names for reverse lookups?

Which command is an essential tool for testing when configuring or troubleshooting a DNS server?

Match each item with a statement below. a.A record b.Link-Local Multicast Name Resolution (LLMNR) c.Peer Name Resolution Protocol (PNRP) d.caching-only server e.CNAME record f.SOA record g.delegation of authority h.multihomed i.pointer record -A DNS resource record that identifies the server or servers that are authoritative for the domain or subdomain to which the zone files or database correspond

The structure of the DNS database mirrors the structure of the domain namespace itself.

What are some of the disadvantages of a round robin DNS?

Which type of request will always go to the name server that is authoritative for the domain that contains the requested name or address to make completely sure data is obtained directly from the source?