Explanation:
The term IT infrastructure refer to an enterprise which is basically a collection of various hardware, software, network components, data network and data centers that are being used to do some development, testing related to IT related services. So the major components of IT infrastructure are:
1) Hardware solutions
2) Software Solutions
3) Various Network Component
4) Data Centers
Business Intelligence is basically a technology driven process that is being used analyze various data and the information in more effective and more informed way. The role of business Intelligence is given in following points:
1) Business Intelligence plays a vital role in identifying the technology required for our business.
2) As we knew that Business Intelligence is technology driven, so technology identification is major part that is being done my this process
3) With business Intelligence we chose the best technology required for our business, its help in increasing the profit of the business.
4) We can business Intelligence is the major process that deal with identifying all the technology needs of the business
Answer:
The answers are: it is used to enable fast DNS queries and It can help reduce the amount of network traffic generated by DNS servers.
Explanation:
Because a DNS server can resolve a query from tis local data sends a recursive qyery to a root server.
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A pure aggregator is best defined as a blog that aggregates blog content from other sources.
An Aggregator blog or website don't write its own content. It aggregates information or content from third-party websites. There are different types of aggregator websites such as a poll aggregator, a review aggregator, and a search aggregator.
The correct answer is B. Primary DNS Server.
DNS records are type of data that is equivalent to IP address where the website or domain is located. DNS records are normally stored in DNS server in a raw or flat file. A host, using port number 53 will send a DNS request to the server. If the computer has stored it's data or record in it's database, it will automatically reply to the requesting host. Example: You typed in www.website.com, if you have a matching DNS record in your server, using an IP address, your server will reply and display the website.
