Java ee - Interview Questions and Answers for 'Abs' | Search Interview Question

Java ee - Interview Questions and Answers for 'Abs' - 1 question(s) found - Order By Newest

Q1. What is a cookie ?

Ans. A cookie is a small piece of text stored on a user's computer by the browser for a specific domain. Commonly used for authentication, storing site preferences, and server session identification.

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

_{Like Discuss Correct / Improve cookie javascript web application session management browser j2ee Asked in 16 Companies basic frequent}

Related Questions

What is session tracking and how do you track a user session in servlets?

what is the use of cookie and session ? and What is the difference between them ?

What are different types of cookies ?

Why using cookie to store session info is a better idea than just using session info in the request ?

http protocol is by default ... ?

How cookies helps by storing encrypted passwords ?

Is it front end code or the back end code , that drops the cookies ?

How can we drop cookies through back end code ? Does it transfer the cookie file to the client ?

What is SameSite cookie attribute ?

Q2. Which method needs to be implemented if a class is implementing comparable interface ?

Core Java

a. comp

b. compare

c. compareTo

d. compareEquals

Ans.c. compareTo

Q3. What is Dirty Read in Database Transactions ?

Database

a. Data Read by Transaction 2 which hasn't yet updated by Transaction 1

b. Data Read by Transaction 2 which has been updated and commited by Transaction 1

c. Data Read by Transaction 2 which has been updated but not commited by Transaction 1

d. Inability of Transaction 2 to read Data when Transaction 1 is updating.

Ans.c. Data Read by Transaction 2 which has been updated but not commited by Transaction 1

Q4. Which of the following is not true for abstract classes ? Reference

Core Java

a. Abstract Class is only meant to be sub classed and not supposed to be instantiated.

b. Abstract class handlers can be used to handle derived class objects.

c. We can't have an abstract class without abstract methods.

d. Abstract class has member elements.

Ans.c. We can't have an abstract class without abstract methods.

Q5. Which of the following class creates immutable objects ? Reference

Core Java

a. String

b. StringBuffer

c. StringBuilder

d. None of these create immutable objects.

Ans.a. String

Q6. Which of the following can be declared abstract ?

Core Java

a. static methods

b. instance methods

c. static variable

d. instance variables

Ans.b. instance methods

Q7. In majority of the cases, the following join will give maximum number of results ? Reference

Database

a. Inner Join

b. Outer Join

c. Left Join

d. Right Join

Ans.b. Outer Join

Q8. Which if the following is true for SQL Joins ? Reference

Database

a. Left Join and Right Join gives equal number of Results

b. Outer Join and Inner Join gives equal number of Results

c. Inner Join gives maximum number of results records

d. Inner Join gives minimum number of result records

Ans.d. Inner Join gives minimum number of result records

Q9. Which of the following is not true for Prepared Statements ?

Database

a. Prepared Statements provides better performance

b. Prepared Statements prevent SQL Injection attacks

c. Prepared Statements provide ORM capabilities

d. Prepared Statement provides DB side caching

Ans.c. Prepared Statements provide ORM capabilities

Search Interview Questions

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