Interview Questions

JavaScripts uses a hierarchical structure that applies to the objects in a document. There are some objects that show the relationship of one object to another using the language.

Window object: This is the topmost object in the hierarchy. It represent the content area of browser window that consists of HTML documents. Each frame is also a window that has some actions inside it.

Document object: This object gets loaded in a window and consists of objects of different kind in the model. It consists of the content that will be written in the script.

Form object: Form objects are used for more interaction with the users. It represents the form elements inside <FORM>...</FORM> tag.

When creating a thread by extending the Thread class, it is not mandatory to override the run method (If we are not overriding the run method , it is useless), because Thread class have already given a default implementation for run method. But if we are implementing Runnable , it is mandatory to override the run method. The preferred way to create a thread is by implementing Runnable interface, because it give loose coupling.

- The Dictionary class is an abstract class.

- Classes like Hashtable which map keys to values inherit from this class. 

- An object can be looked for if a dictionary and a key is provided.

- Any non-null object can be used as a key and as a value.

- FTP is used to upload the files on the server from the client side where it is installed on the computer of clients. 

- FTP client is checked for the installation of the software and according to that the appropriate directory is uploaded on the hosting server. 

- The hosting server uploads the files that is being created by the user and set the permissions for it so that public can access it. 

- Web hosting uses different directories like HTML that is used as var/www/html that is determined using the FTP client. 

- Initial local directory is being set up using FTP client and it is where the website gets stored. 

- The transfer mode is being determined for the files that need to be transferred either in ASCII or BINARY mode.

A center equipped to handle a large volume of telephone calls. These calls could be the calls coming in from customers for service or support or these could be the calls that call center executives make to the customers for marketing

There are mainly two types of call centers :

a) Inbound call centers – Inbound call centers are those which receive support or service calls from customers usually on a toll free number. For e.g. when you call up a bank to check the status of your request for credit card, it is an inbound call.

b) Outbound call centers – Outbound call centers are those in which the call center executives make calls to the customers. These calls are usually made to generate the leads or sales. For e.g. when you receive a call from a bank offering you a personal loan, it is an outbound call. 

var obj = new Object(); or var obj = {};

Payroll is defined as its a remuneration given for work done by individuals on daily,monthly,weekly etc....

FIND_GROUP(function) FIND_COLUMN(function)