A proxy server is a server that intercepts user requests from the internal secure network and then processes that request on behalf of the user.
The proxy server can be a computer or application program<span> that gets the requests from clients and seeks resources from other </span>servers. It is a <span>intermediary point between the end user and the backbone network.</span>
Answer:
All of Given
Explanation:
The throw keywords can be used to throw any Throwable object. The syntax is :
throw <Throwable instance>
Note that Error and Exception are subclasses of Throwable while RuntimeException is a subclass of Exception. So the hierarchy is as follows:
Throwable
-- Error
-- Exception
-- RuntimeException
And all of these are valid throwable entities. As a result "All of Given" is the most appropriate option for this question.
Answer: -1 usually represents infinity.
Explanation:
It would keep going forever and not be able to stop without manually stopping it.
Answer:
b. foreign key
Explanation:
In the database world, a foreign key is a field on one table and a primary key for another table. The purpose of a foreign key is to provide linkages between two or more tables. Given two tables A and B, and making A the point of reference, a primary key is a field that is unique in A while a foreign key is unique in B.
On another hand, a composite primary key is a combination of two or more fields/columns on database table that can be used to uniquely identify each row in the table.
In the database lingua, what we have is a unique key not a distinct key, though the two words are similar in meaning.
A duplicate key is used when an information may be repeatedly entered on a table.
So the correct option is a foreign key.
Answer:
<em>The Processor</em>
<em>The central processing unit (CPU) guides the computer through the various steps of solving a problem. Data enters the computer through an input unit, is processed by the central processing unit, and is then made available to the user through an output unit.</em>
<em>ExplanationExplanationExplanation:</em>
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