Answer:
D. A DNS server asks another DNS server to resolve a domain name
Explanation:
DNS (Domain name system) queries are essentially of two types;
i. recursive address resolution
ii. iterative or non-recursive address resolution
=> In the <em>recursive address resolution</em>, which represents a recursive query, when a DNS server A, receives a request from a client and does not know how to resolve such request, the DNS server sends the query to another DNS server B on behalf of this client. DNS server B can either reply to the query with the actual answer or an error message. If it's an actual answer, it returns to the client. Otherwise, it queries another DNS server, say C.
=> In the <em>iterative address resolution</em>, once the DNS server A receives a request from the client, it tries to reply the client with the best answer it can give. If the DNS server A does not have an answer, it refers the client to another DNS server say B. In this case, the server A does not directly query the server B. Instead, it refers the client to the server B.
If you pin the tab it dramatically lowers usage
The correct answer is; " a unit of lexical meaning that underlies a set of words that are related through inflection."
Further Explanation:
The lexeme is part of the stream where the tokens are taken and identified from. When these streams become broken, there is always an error message. The lexeme is known as "the building blocks of language."
These are a very important part of computer programming. If any string or character is misplaced this can stop the entire program or operation.
One example of a lexeme is;
- the symbols (, ), and -> are for the letter C.
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Answer:
c. Both a and b
Explanation:
In computing, processing information simply means performing a task. It means transforming data from one form to another.
In the real sense of it, it means, performing arithmetic or logical operations (by ALU) on binary data which could result in transmitting data from input devices to output devices. When a user launches the calculator application on his PC, and he tries to do some arithmetic (which is processed by the ALU) by entering numbers using his keyboard/mouse (input devices), he gets the result on the screen(output device). This scenario is a typical example of processing information.
<em>Hope this helps!</em>
