Technology Questions

- Virtual domain is the domain of the client on which they can run their applications without having to install the server or hardware. 

- The software need not to be installed physically on the server as it can be done using the local repositories and maintaining the domain locally. 

- Using the virtual domain the server storage space is utilized efficiently and the data can be made more secure before publishing it online. 

- Virtual domains are used to represent the personal Internet web address domain name and can be made with your personal one. 

- Virtual domain provides more security in terms of using your own personalized domain and allows the access to the resources that are on web.

For inserting, deleting, and locating elements in a Map, the HashMap offers the best alternative. If, however, you need to traverse the keys in a sorted order, then TreeMap is your better alternative. Depending upon the size of your collection, it may be faster to add elements to a HashMap, then convert the map to a TreeMap for sorted key traversal.

It is the ability of an object to behave differently on different situations for the same message.

If we are not using packages and if we are not using inheritance then there is no difference among public, protected and package access data.

sap memory is a global memory whereas abap memory is local memory.

For example, we have four programs in abap memory and assigned some varibles to a particular program in abap memory then those varibles can't be used by anyother program in abap memory i.e., the variables are only for that program and also local to that memory,whereas sap memory can access all the abap memory or else it can perform any kind of modifications.

The CACHE option means how many sequences will be stored in memory for access by the application objects. The performance is faster. However in case of the database is down the data is memory is lost for the sequence.

The NO CACHE option means values are not stored in memory. So there might be some performance issue. 

- Basically it is a string that identifies the elements to which a particular declaration or set of declarations will apply. 

- It can also be referred to as a link between the HTML document and the style sheet. 

- It is equivalent of HTML elements.

For example : 

A {text-indent: 12pt}

Here, the selector is A, which is called as type selector.

FDM is an analog technique that can be applied when the bandwidth of a link is greater than the combined bandwidths of the signals to be transmitted.