Interview Questions and Answers for 'T' | Search Interview Question

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Q1351. What is backorder ?

ECommerce

Ans. The status of an ordered product when inventory allocation has determined that the product is not available.

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Q1352. What is cross-selling ?

ECommerce

Ans. Selling of Merchandise across stores. For example - Store A selling Store B's merchandise.

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Q1353. Describe Marketing subsystem and What WCS components are part of this system ?

IBM WCS

Ans. The Marketing subsystem is a component of the WebSphere Commerce Server, and provides numerous marketing concepts to your site, designed to increase brand awareness, and to attract and retain customers. Components of the marketing subsystem provide functionality to create marketing campaigns, including customer segments and advertising; and e-mail activities.

Various components are -

1. Promotions
2. Auctions
3. eSpots
4. e Mail Campaigns
5. Hubs and Extended sites for affiliates

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Q1354. Describe Catalog subsystem and the tables used in WCS for managing this ?

IBM WCS

Ans. The catalog subsystem or Catalog Management provides online catalog navigation, partitioning, categorization, and associations. In addition, the catalog subsystem includes support for personalized interest lists and custom catalog display pages. The catalog subsystem contains all logic and data relevant to an online catalog, including catalog groups (or categories), catalog entries, and any associations or relationships among them.

Tables used for Catalog subsystem

1. CATENTRY
2. CATENTREL

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Q1355. Is it necessary to register controller command in CMDREG table ?

IBM WCS

Ans. It is not necessary to enter data in the CMDREG table, but an entry should be made in the struts-config.xml. The controller command can be registered in the CMDREG table by xml and SQL query.

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Q1356. What are the tag libraries used in WCS ?

IBM WCS

Ans. Core tags, sql , xml and fmt tags.

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Q1357. Write a Program to find the missing integer in an array of consecutive numbers?

Core Java

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

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Q1358. How to find the median number in an array of integers ?

Core Java

Ans.

Arrays.sort(numArray);
double median;
if (numArray.length % 2 == 0)
median = ((double)numArray[numArray.length/2] (double)numArray[numArray.length/2 - 1])/2;
else
median = (double) numArray[numArray.length-1/2];

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Q1359. Tell us something about Spring framework ?

Spring

Ans. Spring is a lightweight framework which gives in-build DI(Dependency injection) and IOC(Inversion of control) features. Where DI is used for injecting one bean into the another bean like Inheritance in Java and IOC is a controller which will control the flow of the bean like bean creation and so on. We will use Bean Factory and Application Context for configuring.

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Q1360. Write a Java program to print 10 random numbers between 1 to 100?

Core Java

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

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Q1361. Why don't Java objects have destructors ?

Core Java

Ans. Java manages memory using built-in garbage collector

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Q1362. What is the difference between && and & in Java ?

Core Java

Ans. && is a Logical whereas & is a bitwise operator

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Q1363. What is the parent child relationship in Maven ?

Maven

Ans. Maven provides a facility to have a structure of inheritance relationship between modules / projects through parent tag in POM file. When we try building the parent project , all its child modules are built first in the order specified in the parent POM file.

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Q1364. Write a method / program that will determine if the parenthesis are balanced in a given string.

Core Java

Ans. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/

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Q1365. What are the methods to connect to database in Java ?

Database

Ans. JDBC ( Java Database Connectivity ),ODBC (Open Database Connectivity), Hibernate, JPA ( Java Persistence API ), JOOQ,MyBatis

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Frequently asked Spring interview question.

Q1366. What are the components of Spring framework ?

Spring

Ans. Core: [Core, Bean, Context, Expression Language]

Web: [Web, Portlet, Servlet, etc]

Data Access [JMS, JDBC, etc]

AOP, Aspect

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Q1367. What are the core OOPs concepts ?

Core Java

Ans. Abstraction, Encapsulation, Polymorphism , Composition and Inheritance

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Q1368. How are the concept of Association related to Composition and Inheritance ?

Core Java

Ans. Composition and Inheritance are the different types of Associations for Classes.

Composition is a has-a association between classes.
Inheritance is a is-a association between classes.

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Q1369. What is the difference between GIT Commit and Push ?

GIT

Ans. Git commit commit the changes to local repository whereas Push commits the changes to Remote repository.

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Q1370. What is cloning in GIT ?

GIT

Ans. Cloning is the process of making a copy. It could be creating local copy of another local repository or local copy of remote repository.

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Q1371. Design a Passport Office system

Design

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

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Q1372. Name few creational design patterns ?

Design

Ans. Factory,Abstract Factory,Singleton,Prototype and Builder

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Q1373. Name few structural Design Patterns ?

Design

Ans. Adapter,Bridge,Composite,Decorator,Facade,Flyweight,Proxy

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Q1374. Name few Behavioral Design Patterns ?

Design

Ans. Interpreter,Chain of Responsibility,Command,Iterator,Observer,Mediator,Memento

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Q1375. Which is your favorite Design pattern, each in Creational , Structural and Behavioral and Why ?

Design

Ans. [Open Ended Answer]

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Q1376. What is Exception Wrapping ?

Ans. Exception wrapping is wrapping an exception object within another exception object and then throwing the outer exception.

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Q1377. Where do you see yourself in next 5 years?

General

Ans. Sample Answers -

Getting better with upcoming technologies and be a Lead developer.

In accordance with the company, working as a permenant employee.

Be an associate architect.

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Q1378. What are the daily activities of build and release engineer ?

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

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Q1379. Can we have 2 entity fields mapped to the same column in Hibernate ?

Hibernate

Ans. No, it's not legal in hibernate. 1 column should be mapped to only one field in entity.

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Q1380. If we would like to load just the mapping id for the mapped entity, how can we accomplish that.

For example -

Employee entity is mapped to department entity through department id. We want that when we load employee.getDepartment().getDepartmentId(), it shouldn't load the complete department object but just the Id.

Hibernate

Ans. We can use

@AccessType("property") for getDepartmentId() method within Department class in that case.

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