When a plus sign is placed between two strings, it ____________________ the two strings to create a new string value.
Fill in the blank(s) with the appropriate word(s).
concatenates
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In CentOS 7 using an extension on script files is optional. However, some Linux system administrators prefer to add a file extension to their scripts. What file extension is commonly used for this purpose?
.exe .rt .bt .sh
Which of the following best describes the application layer of Hadoop?
a. It enables applications such as internally developed programming languages or purchased third-party business intelligence tools to interact with Hadoop. b. It handles the scheduling and initiation of jobs and balances the required work among the various resources available. c. It handles inevitable job failures and interruptions. d. It is responsible for the storage of big data.
_______________ refers to the spacing between two characters.
Fill in the blank(s) with the appropriate word(s).
________ and_______ are two widely supported wireless markup languages.
a) XHTML, WML. b) XHTML Basic, WML. c) XHTML Basic, WAP. d) None of the above.