What are the two modes of operation for an operating system what is their purpose and how is it possible for a system to switch between the different modes please explain?

Which 2 wildcards are used in SQL?

To broaden the selections of a structured query language (SQL-SELECT) statement, two wildcard characters, the percent sign (%) and the underscore (_), can be used. What are the 2 commonly used wildcards? Commonly used wildcards are the asterisk ( * ) and the question mark ( ? ). How many wildcards are in SQL? In…

Which of the following symbols are used for comment in Python Mcq?

Answer: In Python script, the symbol # indicates start of comment line. It is effective till the end of line in the editor. If # is the first character of line, then entire line is a comment. Which of the following symbol are used for comments in Python? Comments in Python are identified with a…

What are * called in math?

The symbol * is used in spreadsheets and other computer applications to indicate a multiplication, although * does have other more complex meanings in mathematics. Less commonly, multiplication may also be symbolised by a dot . or indeed by no symbol at all. What does the * stand for in math? times … Product of…

What does <> mean in DBMS?

It means 'not equal to'. So you're filtering out records where ordid is 605. Overall you're looking for any records which have the same prodid and qty values as those assigned to ordid 605, but which are for a different order. Follow this answer to receive notifications.What does mean in databases? It means 'not equal…

What are comments in C?

Comments in C Comments can be used to explain code, and to make it more readable. It can also be used to prevent execution when testing alternative code. Comments can be singled-lined or multi-lined. What is comment give example? In general, a comment is a remark, suggestion, or another form of feedback about a product…

What is semantics sentence examples?

Semantics sentence example. Her speech sounded very formal, but it was clear that the young girl did not understand the semantics of all the words she was using. The advertisers played around with semantics to create a slogan customers would respond to. What are semantics and examples? Semantics is the study of meaning in language.…

What are the 3 data types Python uses?

You’ll learn about several basic numeric, string, and Boolean types that are built into Python. What are the 3 common data types used in Python? Following are the standard or built-in data type of Python: Numeric. Sequence Type. Boolean. What are the 3 main data types? Most programming languages support basic data types of integer…

What are the 3 main types of sentences?

Three essential types of sentence are declarative sentences (which are statements), interrogative sentences (which are questions), and imperative sentences (which are orders). What are the main types of sentence? There are four types of sentences in the English language: declarative, exclamatory, imperative, and interrogatory. What are the 4 main sentence types? There are four types…

What are Type 1 and Type 2 errors examples?

Type I error (false positive): the test result says you have coronavirus, but you actually don’t. Type II error (false negative): the test result says you don’t have coronavirus, but you actually do. What is type II error explain with example? A type II error produces a false negative, also known as an error of…

What is === vs ==?

The main difference between the == and === operator in javascript is that the == operator does the type conversion of the operands before comparison, whereas the === operator compares the values as well as the data types of the operands. What is difference between === and ==? The main difference between the == and…