Answer: (c) A file stream object can be used to open more than one file simultaneously.
Explanation: File stream is application that is found on desktop that helps in accessing the files on demand and requirement of the Google Drive. The files team can access direction and updating takes place automatically.
It also helps in the accessing one or more files in a series through individual file stream object. After all the accessing and activities file gets closed as well and the updates gets save automatically.
Other options are incorrect because accessing the file for reading or writing requires file name mandatory and single object can open a file but cannot be used for writing and reading.Thus ,the correct options are option(c) .
Answer:
SuperFetch
Explanation:
Superfetch is a memory management technique on windows service that enables or fetch frequently use applications on systems and launch them faster because the frequently use applications has been preload into the system memory for easy access when they want to be used.
SuperFetch always takes notice of all application running on your system in which when you exit a frequently used application SuperFetch will preload them immediately since it is saved on the system memory.
One of the most important part of Superfetch is that it saves alot of time because you don't have to search the applications before you get access to them in as far as the application was frequently used.
Answer:
Parent
Explanation:
HTML is an acronym for hypertext markup language and it is a standard programming language which is used for designing, developing and creating web pages.
Generally, all HTML documents are divided into two (2) main parts; body and head. The head contains information such as version of HTML, title of a page, metadata, link to custom favicons and CSS etc. The body of a HTML document contains the contents or informations that a web page displays.
In this scenario, Roger wants to give semantic meaning (an element conveying informations about the type of content contained within an opening and closing tag) to a contact information placed at the bottom of a webpage. Thus, in order to do this, he should use a footer element as a parent of the contact information and as such all instance variables that have been used or declared in the footer class (superclass) would be present in its contact information (subclass object).
This is about identifiers in a record referring to other records.
You can have many to one, one to one, many to many.
E.g., if you have two tables, Authors and Books, then a book record could have a reference to an author record. Since an author can write many books, this would be a many-to-one relationship.
Answer:
Computer is called versatile and diligent device because it is used in almost all the fields for various purposes and it can perform the task repeatedly without loosing its speed and accuracy for long time.
