Answer:
Commands: commands are also known as "programs" and the program is a set of rules that performs a specific task which is executed by a computer.
Unix is an operating system. that supports multi-tasking and multi-user functionality. Unix is most widely used in all forms of computing systems such as desktop, laptop, and servers. It provides a Graphical user interface similar to windows.
The Unix operating system there are various commands. The list of five Unix commands can be given as:
1) cal
2) date
3) banner
4) who
5) whoami
1)cal:
The cal command stands for calender. It displays the date.
Syntax:
$ cal
or
$ cal [[month] year]
Example:
$ cal 10 2019
2)date:
The date command stands for date and time. It displays the system date and time.
Syntax:
$date
or
$ date[+format]
Example:
$ date +%d/%m/%y
3) banner
The banner command stands for display the text in to a large size.
Syntax:
$banner message
Example:
$banner Unix
4) who
The who command stands for display the list of users currently logged in.
Syntax:
$who
or
$who [option] … [file][arg1]
Example:
$who
5) whoami
The whoami command stands for display the user id of the currently logged-in user.
Syntax:
$whoami
Example:
$whoami
Explanation:
1)cal command display the current month and year.
2)date command display system date and time.
3)banner command display text in large size.
4)who command display the user name who currently login.
5)whoami command display user id.
Answer:
The answer to this question is given below in the explanation section.
Explanation:
The correct answer to this question is :
Graphics
Because Graphics are the visual representation of information without text. Images, symbols, and diagrams are types of graphics. These graphics can be used in presentations to present information visually.
While other options are not correct because:
Art objects are some images or painting that is the artistic creation of aesthetic value. While graphs are the visual presentation of data and there are different presentation objects in PowerPoint such as images, symbols, text, and diagrams, etc. But it is noted that images, symbols, and diagram are not types of presentation objects but it is a type of graphics elements/objects.
D)When the query is run again, the data that meets the new criteria will be retrieved.
Answer:
The answer to this question is given below in the explanation section.
Explanation:
The correct answer to this question is C i.e. String s = "apluse";
The rule or syntax of declaring string in any programming language is given below:
String variable-name = "yourString";
For declaring string variable, first, you write "String" that is a keyword of a programming languages for declaring string variables, such as int before the variable name for declaring integer variable. Then, you need to write a meaningful name of the string as a variable. After string variable name, you need to put the equal operator and then write the string in double quotation("") marks and after that put the instruction terminator that is ";".
So, according to this syntax, option C is correct.
While other options are not correct because:
In option a, string is not encapsulated in double quotation. Option B does not have varaible type such as String and Option E does not have variable name and its value also. So, only option C is correct and all other except C are incorrect.
The answer is performing arithmetic and logical operations
