CS508 Quiz 2 Solution and Discussion

[zareen]

Quiz No 2 Total Questions : 10
Please read the following instructions carefully!

Quiz will be based upon Multiple Choice Questions (MCQs).

You have to attempt the quiz online. You can start attempting the quiz any time within given date(s) of a particular subject by clicking the link for Quiz in VULMS.

Each question has a fixed time of 90 seconds. So you have to save your answer before 90 seconds. But due to unstable internet speeds, it is recommended that you should save your answer within 60 seconds. While attempting a question, keep an eye on the remaining time.

Attempting quiz is unidirectional. Once you move forward to the next question, you can not go back to the previous one. Therefore before moving to the next question, make sure that you have selected the best option.

DO NOT press Back Button / Backspace Button while attempting a question, otherwise you will lose that question.

DO NOT refresh the page unnecessarily, specially when following messages appear
    Saving...
    Question Timeout: Now loading next question...

Javascript MUST be enabled in your browser; otherwise you will not be able to attempt the quiz.

If for any reason, you lose access to internet (like power failure or disconnection of internet), you will be able to attempt the quiz again from the question next to the last shown question. But remember that you have to complete the quiz before expiry of the deadline.

If any student failed to attempt the quiz in given time then no re-take or offline quiz will be held.

[zareen]

_________ operator in Prolog is used for List construction and also for List dismantling. CS508

!(Sign of exclamation)
|(Vertical Slash) PG # 90
:(Colon)
None of the given

[zareen]

the concept of c# jagged

Jagged Arrays (array-of-arrays) A jagged array is an array whose elements are arrays. The elements of a jagged array can be of different dimensions and sizes. A jagged array is sometimes called an “array of arrays.” A special type of array is introduced in C#

[zareen]

In java, explicit conversion of primitive type is done by _________ CS508
aliasing
boxing
casting
overloading

[zareen]

_____ is used to initialize values of arrays in C++ and Java. CS508
[]
()
{}

[zareen]

CS508 - Modern Programming Languages - Q. No. 1

In C# Managed code is executed under the control of

            CLR

            CRL

CS508 - Modern Programming Languages - Q. No. 2

_____is more strongly typed language then _________

            C++, C#

            C#, C++

            C++, Java

            None of then given

CS508 - Modern Programming Languages - Q. No. 3

The IS operator in C# is used for_________

            Run time type conversion

            Run time type checking

            Run time type casting

            None of the given

CS508 - Modern Programming Languages - Q. No. 4

PHP is a __________typed language.

            Strongly

            Dynamic

            Static

            None of Given

CS508 - Modern Programming Languages - Q. No. 5

____ compile into machine independent language, independent code which run in a managed execution environment.

            C#

            Java

            C++

            Ada

CS508 - Modern Programming Languages - Q. No. 6

PHP supported all major Databases including______.

            ODBC

            Oracle

            SQL Server

            None Of given

CS508 - Modern Programming Languages - Q. No. 7

______compile initially to an intermediate. Which can be run by interpretation or just in time compilation or an appropriate virtual machine?

            C++ and C#

            C# and Java

            Java and C++

            Ada , C++

CS508 - Modern Programming Languages - Q. No. 8

The keyword unsafe is used while dealing with_____

            Loop

            Arrays

            Pointers

            Classes

CS508 - Modern Programming Languages - Q. No. 9

Enumeration type in C# may take any type of _______ in contrast to C++ where it take only _________

            Numeric value, integer value

            Value type value, numeric value

            Primitive type value, reference type value

            Value type value, reference type value

CS508 - Modern Programming Languages - Q. No. 10

Tasks in ____are processes and cannot share data but thread in _______ do it.

            C# , C++

            C++ , Ada

            Java , C#

            Ada , Java

CS508 - Modern Programming Languages - Q. No. 11

C# code when compiled is converted into ________ code.

            MSIL

            MISL

CS508 - Modern Programming Languages - Q. No. 12 of

In C# _____can be inherited from other class but no inheritance from it. On the other hand _________ cannot be inherited not inheritance is possible from it is possible.

            Private class , public class

            Sealed class ,struct in C#

            struct in C# , Sealed class

            public class , inherited class

CS508 - Modern Programming Languages - Q. No. 13

The concept of sealed class in C# is similar to ________

            Struct in C#,

            Struct in C++

            Abstract class in C#

            None of the given

CS508 - Modern Programming Languages - Q. No. 14

Managed or safe code in_______ is executed under the control of common language runtime (CLR) with automatic garbage collection, no explicit memory allocation and de allocation and no explicit destructor.

            C++

            Java

            Ada and C++

            C#

CS508 - Modern Programming Languages - Q. No. 15

In C# the if statement condition is an/a ________

            Arithmetic expression

            Boolean expression

            Numeric expression

            Both Numeric expression and Boolean expression

CS508 - Modern Programming Languages - Q. No. 16

Java code when compiled is converted into ________ code.

            Bit code

            Byte code

            Kbytes code

            Giga byte Code

CS508 - Modern Programming Languages - Q. No. 17

PHP is a __________typed language.

            Strongly

            Dynamic

            Static

            None of Given

CS508 - Modern Programming Languages - Q. No. 18

In ______ the relationship between a get and set method is inherited, while in ___________ it has to be maintained.

            Java , C++

            C++ , C#

            Ada , Java

            C# , Java or C++

CS508 - Modern Programming Languages - Q. No. 19

C# code when compiled is converted into ________ code.

            MSIL

            MISL

CS508 - Modern Programming Languages - Q. No. 20

In______ Boolean expression is convertible into integer type.

            C#

            C++

            JAVA

            Ada

CS508 - Modern Programming Languages - Q. No. 21

PHP syntax looks like ____________

            ASP syntax

            C/C++ syntax

CS508 - Modern Programming Languages - Q. No. 22

For narrowing conversion which type conversion is appropriate?

            Implicit Conversion

            Explicit Conversion

CS508 - Modern Programming Languages - Q. No. 23

In Java we can make pointer of_________.

            Any type

            Reference type only

CS508 - Modern Programming Languages - Q. No. 24

In C# the value type and reference type variable are interconvert able through ________ concept.

            Tagged type

            Boxing

            Interfaces

            None of the given

CS508 - Modern Programming Languages - Q. No. 25

C# support only_________ inheritance and it achieve_________ inheritance through the concept of interfaces.

            Multiple, multiple

            Single, multiple

CS508 - Modern Programming Languages - Q. No. 26

Tasks in ____are processes and cannot share data but thread in _______ do it.

            C# , C++

            C++ , Ada

            Java , C#

            Ada , Java

CS508 - Modern Programming Languages - Q. No. 27

The concept of package in Java is similar to _________

            Assembly in C#

            Global class in C#

CS508 - Modern Programming Languages - Q. No. 28

The concept of C# jagged array is similar in function to _________

            C++ rectangular Array

            Java Array of Array

            Java pointer Array

            C# Array

CS508 - Modern Programming Languages - Q. No. 29

In C# _____can be inherited from other class but no inheritance from it. On the other hand _________ cannot be inherited not inheritance is possible from it is possible.

            Private class , public class

            Sealed class ,struct in C#

            struct in C# , Sealed class

            public class , inherited class

CS508 - Modern Programming Languages - Q. No. 30

The concept of sealed class in C# is similar to ________

            Struct in C#,

            Struct in C++

            Abstract class in C#

            None of the given

[zareen]

____ compile into machine independent language, independent code which run in a managed execution environment. CS508

C#.
Java.
C++.
Ada

[zareen]

Dealing with unsafe/unmanaged code in _______ we have to compromise on the type safety. CS508
C++
C#
Java
Ada

[zareen]

Question # 1 of 10 ( Start time: 11:23:02 PM ) Total Marks: 1
The _________ in Java is passed by value but ______ is passed by reference.
Select correct option:
Object , Parameters
Parameters , Object
Arguments , Reference type
Reference type , Primitive type

Question # 2 of 10 ( Start time: 11:23:42 PM ) Total Marks: 1
Which of the following are the types of constants in Prolog
Select correct option:
atoms and numbers.
single and decimal
short and char
float and numbers

Question # 3 of 10 ( Start time: 11:23:58 PM ) Total Marks: 1
In Java the ______________are not objects. All of the rest are objects, or any ___________ is called as object.
Select correct option:
generic type , reference type
primitive types , generic type
Reference type , generic type
Reference type , primitive types

Question # 4 of 10 ( Start time: 11:24:35 PM ) Total Marks: 1
In Java which of the following is not Primitive Type
Select correct option:
byte
short
decimal
int

Question # 5 of 10 ( Start time: 11:24:56 PM ) Total Marks: 1
Prolog is considered to be as ________
Select correct option:
case and type insensitive
case and type sensitive
case sensitive and type insensitve
case insensitive and type sensitive

Question # 6 of 10 ( Start time: 11:25:14 PM ) Total Marks: 1
In Prolog language____is used for comments.
Select correct option:
//
%
&
’

Question # 7 of 10 ( Start time: 11:25:25 PM ) Total Marks: 1
Method that would be free functions in _________(not members of any class) should be static method in _________.
Select correct option:
Java , C#
C++ , C#
Java , C++
C++ , Java

Question # 8 of 10 ( Start time: 11:25:42 PM ) Total Marks: 1
For inheritance we use______ for interface we use________ keywords.
Select correct option:
subclass:baseclass , virtual function
overloaded , virtual
extend , implement
virtual function , overloaded

Question # 9 of 10 ( Start time: 11:26:12 PM ) Total Marks: 1
In ________ for final fields and methods the value is assigned later but in ______ you assign the value during declaration.
Select correct option:
Java , C++
C++ , C#
Java , C#
C++ ,Java

Question # 10 of 10 ( Start time: 11:26:41 PM ) Total Marks: 1
The Java Bytecode is created by the Java compiler and is stored in ____ file
Select correct option:
.exe
.sys
.class
.jvm

[zareen]

Which of the following is not true about delegates? CS508
Delegates are value type
Delegates are reference type
Delegates are similar to function pointers. C/C++

Page 128
Delegates are similar to function pointers. C/C++ function pointers lack instance-based
knowledge whereas C# delegate are event based can be thought of a call-back mechanism
where a request is made to invoke a specified method when the time is right.

In Java, out-of-bounds array index always causes a _______ error. CS508
Syntax
run time

In C# _____can be inherited from other class but no inheritance from it. On the other hand _________ cannot be inherited and not inheritance from it is possible.

In Prolog language____is used for comments. CS508
//
%
\
**

In Prolog % is used to write a comment just like // in C++. That is after % everything till the end of the line is a comment.

[zareen]

Which of the following is not primitive type in java?

Array

[zareen]

There are _____ “categories” of types in java.

[zareen]

Enumeration type in C# may take any type of _______ in contrast to C++ where it take only _________

[zareen]

In C# the value type and reference type variable are inter convertible through ________ concept.

[zareen]

The concept of C# jagged array is similar in function to _________

[zareen]

_____is more strongly typed language then _________