Interview Questions and Answers for 'C' | Search Interview Question

Interview Questions and Answers - Order By Newest

Q2071. Which memory segment is cleaned by Garbage Collection - stack or heap ?

Core Java

Ans. Heap as objects are stored ink heap.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve memory management stack heap garbage collection}

Q2072. Do we have references for the objects that are eligible for garbage collection ?

Core Java

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q2073. Have you worked on Linux Systems ?

General

^{This question was recently asked at 'HCL Technologies,Symantec'.This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 2 Companies}

Q2074. What is OSGI ?

OSGI

Ans. OSGI is open service gateway initiative, its used as java framework for developing and deploying the modular softwares.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 23 Companies}

Q2075. What is the use of load-on-startup ?

Design

Ans. The load-on-startup element of web-app loads the servlet at the time of deployment or server start if value is positive. It is also known as pre initialization of servlet.You can pass positive and negative value for the servlet.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve load on startup web application Asked in 1 Companies}

Q2076. Are final methods faster than regular instance methods ?

Core Java

Ans. Yes. As they cannot be overridden , there is no use of virtual table concept which is used for dynamic binding resolution.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve final methods final keyword expert}

Q2077. What is virtual table with respect to method overriding in Java ?

Core Java

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve vtable virtual method table method overriding runtime polymorphism object oriented programming (oops) oops concepts}

Q2078. How is the virtual method table implemented in Java?

Core Java

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve virtual method table method overriding runtime polymorphism object oriented programming (oops) oops concepts expert rare}

Q2079. How many VTables are there for each class ?

Core Java

Ans. There is one VTable for each class.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve virtual table method vtable runtime polymorphism object oriented programming (oops) oops concepts method overriding intermediate rare}

Q2080. Explain the use of Client certificates for authentication ?

Authentication

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve authentication client certificates}

Q2081. How cookies helps by storing encrypted passwords ?

Authentication

Ans. It helps user autofill password on the form where its presented for authentication

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve cookie authentication}

Q2082. Have you ever worked with encrypted Tokens and How ?

Authentication

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q2083. How did you use authentication in node.js ?

Node,js

Ans. Using JWT

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve authentication node.js Asked in 2 Companies}

Q2084. How to deal with double hop authentication issue?

Authentication

^{This question was recently asked at 'Bank Of America'.This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q2085. Have you ever used java.util.Objects class ?

Core Java

Ans. Yes, We are using requireNonNull method for validating if the object is null.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve objects util methods rare}

Q2086. Why do we use getbytes in Java?

Core Java

Ans. It is used to convert String into an array of bytes.

byte[] getBytes() - converts String into a byte array.

byte[] getBytes(Charset charset) - converts String to byte array, based on charset encoding.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q2087. If a high CPU Usage happens everyday at a particular time, How would you go about fixing it ?

Server

Ans. We can provision more instances for that particular time slot.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve aws amazon web service server production support Asked in 1 Companies}

Q2088. Why AWS is better than Azure ?

Cloud Computing

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve aws amazon web service Azure}

Q2089. Can Java be run on hardware with just the JVM and no OS ?

Core Java

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q2090. Which java feature is used to convert primitive type to reference type ?

Core Java

Ans. AutoBoxing

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q2091. What is a reflexive equals contract ?

Core Java

Ans. An equal contract is said to be reflexive is equality between 2 objects always returns to be true.

For example -

Object o1;
Object o2;

o1.equals(o2); // returns true
o2.equals(o1); //returns true

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve reflexive equals contract}

Q2092. Explain Transitive equals contract.

Core Java

Ans. The equals contract is said to be transitive if

obj1.equals(obj2); and obj2(.equals(obj3)

then obj1.equals(obj3) also returns true.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Transitive equals contract rare}

Q2093. What sets you apart from other developers ?

or

What are the distinguished qualities you have ?

General

Ans. https://blog.timesunion.com/careers/the-10-most-important-personality-traits-for-career-success/633/

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 32 Companies}

Q2094. How will you enable or disable assertion for a package during runtime ?

Core Java

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q2095. Which java version supports assertion ?

Core Java

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q2096. Create an event class in Java.

Core Java

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve event class}

Q2097. How does multi threading improve performance ?

Core Java

Ans. Every process in it's timeline require different resources. Utilization of resources can be optimized when they are shared among different processes or threads. When one thread is sleeping waiting for a peripheral to complete (e.g. a disk write, or a key press from the keyboard), other threads can continue using processor time and hence would lead to better usage of resources.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve multithreading threads basic frequent}

Q2098. What is Time slicing with respect to Threads ?

Operating System

Ans. Time Slicing is the process to divide the available CPU time to the available runnable threads.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Time Slicing threads thread scheduling thread scheduler}

Q2099. What is Thread scheduler ?

Operating System

Ans. Thread Scheduler is the Operating System service that allocates the CPU time to the available runnable threads.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Thread scheduler threads}

Q2100. What are the different ways to avoid multi Threading related problems in Java ?

Core Java

Ans. Synchronization,
Concurrent classes,
Volatile keyword,
Implementing concurrent Lock interface,
Immutable classes

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve multithreading threads ways to avoid thread related problems synchronization volatile concurrent collections Intermediate}

Search Interview Questions

Help us and Others Improve. Please let us know the questions asked in any of your previous interview.