C Sharp Quiz 3 | Englishfreetest.com

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Put your knowledge about all things technology to the test Because everything tech, from computers and the internet to software and big data, changes rapidly on a day-to-day basis, it’s now a must to stay up to date with the technology that dominates our modern day lives. Are you up to speed on what’s going on in the tech industry today? Take our quiz to find out. Test how much you know about technology

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  • Test content
    Question 1: What is the maximum size of the VARCHAR column type?
    A. 255 Bytes
    B. 255 Characters
    C. 512 Bytes
    D. 512 Characters
    Question 2: Which datatype should be more preferred for storing a simple number like 35 to improve execution speed of a program?
    A. sbyte
    B. short
    C. int
    D. long
    Question 3: What is the output of the following code?
    $a = 'a'; $b = 'b';
    echo isset($c) ? $a.$b.$c : ($c = 'c').'d';
    ?>
    A. abc
    B. cd
    C. 0d
    D. None
    Question 4: Which of the following types of cursors is available with ADO.NET DataReader object?
    A. server-side, forward-only, and read-write cursor
    B. server-side, forward-only, and read-only cursor
    C. server-side, backward-only, and read-write cursor
    D. server-side, bidirectional, and read-only cursor
    Question 5: Correct way to assign values to variable c when int a=12, float b=3.5,int c;
    A. c = a + b
    B. c = a + int(float(b))
    C. c = a + convert.ToInt32(b)
    D. c = int(a + b)
    Question 6: Which of the following data types is implicitly passed by reference in PHP 5 while it is passed by value in PHP 4?
    A. Class
    B. String
    C. Object
    D. Array
    Question 7: Which of the following variable types can be assigned a value directly in C#?
    A. Value types
    B. Reference types
    C. Pointer types
    D. All of the above
    Question 8: Which of the following is correct about reference type variables in C#?
    A. The reference types do not contain the actual data stored in a variable
    B. They contain a reference to the variables
    C. Example of built-in reference types are: object, dynamic, and string
    D. All of the above
    Question 9: Which of the following converts a type to a signed byte type in C#?
    A. ToInt64
    B. ToSbyte
    C. ToInt32
    D. ToSingle
    Question 10: Which of the following operator returns the size of a data type in C#?
    A. sizeof
    B. typeof
    C. &
    D. *