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tgk streamline solutions


{ City } chennai
< Country > india
* Profession * hr manager
User No # 126194
Total Questions Posted # 86
Total Answers Posted # 351

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Answers / { tgk streamline solutions }

Question { 1903 }

What is the difference between null and undefined?


Answer

• null: A deliberate absence of a value assigned by a developer.
• undefined: A variable that has been declared but not assigned a value.

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Question { 1271 }

What is the difference between JavaScript and jscript?


Answer

The JavaScript language was made available by Netscape. To get around the trademark issue, Microsoft renamed it JScript. To put it another way, JScript is the same as JavaScript, but it comes from Microsoft.

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Question { 1575 }

What are binary trees?


Answer

An extension of the linked list structure, a binary tree contains no more than two children per node.
There are always two nodes in a binary tree: a left node and a right node.

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Question { 1728 }

What is FIFO?


Answer

First In First Out is what FIFO stands for.
Data can be accessed, stored, and retrieved using this method.
The first data to be extracted is the one that was initially stored.

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Question { 1613 }

What is a pure virtual function?


Answer

• A function declared with = 0 in a base class, making it abstract. Example:
• virtual void display() = 0;

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Question { 2178 }

What is recursion?


Answer

Recursion occurs when a function calls itself directly or indirectly.

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Question { 2178 }

What is recursion?


Answer

A function that calls itself in response to a terminating condition is said to be recursive.
Because it employs LIFO, the stack data structure is used.

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Question { 1299 }

What is the difference between overloading and overriding?


Answer

• Overloading: Same function name, different signatures.
• Overriding: Redefining a base class's function in a derived class using the same signature.

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Question { 1413 }

What is lifo?


Answer

The acronym LIFO stands for Last In First Out.
Data can be accessed, stored, and retrieved using this method.
The data that was last stored is the first to be extracted.

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Question { 2002 }

What is a graph?


Answer

A specific kind of data structure that has a collection of ordered pairings is called a graph.
Another name for the ordered pairs in a graph is arcs or edges. Connecting nodes where data can be stored and accessed is their most popular use.

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Question { 1652 }

What are packages in java?


Answer

Packages in Java can be defined as the grouping of related types of classes, interfaces, etc providing access to protection and namespace management.

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Question { 1786 }

What is the standard template library (stl)?


Answer

• STL is a collection of templates for data structures (like vector, list), algorithms, and iterators

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Question { 1726 }

What are operators?


Answer

The unique kinds of symbols called operators are employed to carry out certain operations on variables and values.

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Question { 1790 }

What are the different types of joins in sql?


Answer

• Inner Join: Returns matching rows from both tables.
• Left Join (Left Outer Join): Returns all rows from the left table and matching rows from the right table.
• Right Join (Right Outer Join): Returns all rows from the right table and matching rows from the left table.
• Full Join (Full Outer Join): Returns all rows when there’s a match in one of the tables.
• Cross Join: Returns the Cartesian product of both tables.
• Self Join: A table joins itself.
Example Query:
SELECT e1.name, e2.name AS manager_name
FROM employees e1
JOIN employees e2 ON e1.manager_id = e2.id;

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Question { 1530 }

What is the difference between break and continue?


Answer

 break: Exits the loop entirely.
 continue: Skips the current iteration and proceeds to the next.

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