Javascript Question
JavaScript and C# Mastery Quiz
Test your knowledge of JavaScript, C#, and SQL with this comprehensive quiz designed for developers and tech enthusiasts. Whether you're brushing up on your skills or preparing for an interview, this quiz covers essential concepts and common pitfalls in programming.
- Multiple choice and checkbox questions
- Real-world scenarios and coding practices
- Insights into key programming languages
What is the result of !( '5' == 5 )?
True
False
Null
What is the difference between == and === operators in JavaScript?
== compares only values while === compares both values and types
== compares both values and types while === compares only values
Both operators are identical
None of the above.
In html, there is a ul element with multiple li elements, Which one is correct to apply red color on 3rd li ?
$('ul child:3 li').css("color", "red");
$('ul li:3').css("color", "red");
$('ul').find('li:3').css("color", "red");
$('ul li:eq(3)').css("color", "red");
var arr= [1,2,3];
arr[10]=4;
var arrLength=arr.length;
What value assign in the arrLength?
4
3
11
10
If "Product" table contain 100 rows? Then which EntityFramwork Query throw error?
_db.Product.Single();
_db.Product.First();
_db.Product.Take(1000);
_db.Product.Skip(1000);
In C# which statement is not correct?
ReadOnly is a compile constant.
ReadOnly cannot be declared inside the method.
Const can be declared inside the method.
The value of Readonly field can be changed.
In C# which statement is not correct?
Abstract class can not have constructor
Abstract methods can not be private
Abstract class can have static methods
Abstract class cannot be a sealed
In C# which statement is not correct?
App.Use may call next middleware component in the pipeline
App.Run will never call subsequent middleware
Both are correct
Both are not correct
In C# which code statement throw error?
"12-3-5-3-10000".IndexOf("SD");
"12-3-5-3-10000".Split("-");
"12-3-5-3-10000".Replace("-","NULL")
"12-3-5-3-10000".Contains("NULL")
[Route("{type}/{library}/{version}/{file?}/{renew?}")]
public ActionResult Index2(EFileType type,
string library,
string version,
string file = null,
ECacheType renew = ECacheType.cache)
{
return View("Index");
}
Which URL will not hit this Action Method?Http://localhost:52392/2/lib1/ver1/file1/1
Http://localhost:52392/2/lib1/ver1/file1/1/
Http://localhost:52392/2/lib1/ver1/file1/1/
All URL hit the Action Method
public async Task PerformMultipleOperationsAsync()
{
var tasks = new Task[]
{
Operation1Async(), // Take 2 seconds
Operation2Async(), // Take 2 seconds
Operation3Async(), // Take 2 seconds
};
{
var tasks = new Task[]
{
Operation1Async(), // Take 2 seconds
Operation2Async(), // Take 2 seconds
Operation3Async(), // Take 2 seconds
};
try
{
await Task.WhenAll(tasks);
}
catch (AggregateException ae)
{
}
}
{
await Task.WhenAll(tasks);
}
catch (AggregateException ae)
{
}
}
What will be the execution time of method "PerformMultipleOperationsAsync"?
6 Seconds
4 Seconds
2 Seconds
Error
In MSSQL Database which one is not a valid clauses?
LIMIT
NOLOCK
Fetch
OPENJSON
In MSSQL server Which query returns records from the "Product" table where "Name" column contains Null value?
Select * From Product Where Name = NULL
Select * From Product Where Name Is NULL
Select * From Product Where ISNull(Name,'') = NuLL
Select * From Product Where Name =''
In MSSQL which statement is not correct?
The DELETE command is used to delete particular records from a table.
The TRUNCATE command is used to delete the complete data from the table.
Delete is a DDL command.
TRUNCATE does not activate the triggers applied on the table.
In SQL management studio, for a Query which Tool help us to create indexes on tables
Database Engine Tuning Adviser
SQL Profiler
SQL Query Editor
Customize
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