UGC NET/JRF PAPER 2 COMPUTER SCIENCE QUESTION PAPER
UGC NET/JRF 2020 Exam comprises of two papers – Paper 1 and Paper 2. “PAPER 2” is COMPUTER SCIENCE for those candidates which have done their master in COMPUTER SCIENCE.Here we are providing you UGC NET/JRF paper 2 COMPUTER SCIENCE “PREVIOUS YEAR” question WITH answer .
Following are the some java questions asked in UGC NET PAPER 2 examination: –
Q 1 – What is the size of char variable?
A – 8 bit
B – 16 bit
C – 32 bit
D – 64 bit
Answer : B
Q 2 – What is polymorphism?
A – Polymorphism is a technique to define different objects of the same type.
B – Polymorphism is the ability of an object to take on many forms.
C – Polymorphism is a technique to define different methods of the same type.
D – None of the above.
Answer : B
Q 3 – What is JIT compiler?
A – JIT improves the runtime performance of computer programs based on bytecode.
B – JIT is an application development framework.
C – JIT is an implementation of the Java Virtual Machine which executes Java programs.
D – None of the above
Answer : A
Explanation
JIT, Just-In-Time Compiler, improves the runtime performance of computer programs based on bytecode.
Q 4 – Static binding uses which information for binding?
A – type.
B – object.
C – Both of the above.
D – None of the above.
Answer : A
Q 5 – What are Wrapper classes?
A – These are classes that allow primitive types to be accessed as objects.
B – These are classes that wraps functionality of an existing class.
C – Both of the above.
D – None of the above.
Answer : A
Q 6 – Which of the following is a marker interface?
A – serializable
B – comparable
C – cloneable
D – none of the above.
Answer : A
Q 7 – What is the size of the short variable?
A – 8 bit
B – 16 bit
C – 32 bit
D – 64 bit
Answer : C
Q 8 – What is the default value of String variable?
A – “”
B – ”
C – null
D – not defined
Answer : C
Q 9 – What is local variable?
A – Variables defined inside methods, constructors or blocks are called local variables.
B – Variables defined outside methods, constructors or blocks are called local variables.
C – Static variables defined outside methods, constructors or blocks are called local variables.
D – None of the above.
Answer : A
Q 10 – What is NullPointerException?
A – A NullPointerException is thrown when calling the instance method of a null object or modifying/accessing field of a null object.
B – A NullPointerException is thrown when an object is set as null.
C – A NullPointerException is thrown when object property is set as null.
D – None of the above.
Answer : A
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To check about PREVIOUS YEAR QUESTION PAPER of UGC NET PAPER 1 topic on ICT click below:
https://www.soluversity.in/ugc-net-paper-1-ict-mcq
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