Technology Questions

An interface without having any methods and by implementing that interface if our objects will get same ability such type interfaces are called marker interface (or) ability interface (or) tag interface

BlackBerry Enterprise Server: The BlackBerry handhelds are integrated into the e-mail system of the organization through software BlackBerry Enterprise Server. The BES versions are available for MS Exchange, Novell GroupWise and Lotus Domino. A connector was made by Google for BES for making BES available for Google Apps. A new feature is added which enables to track the current location of an individual through trailateration.

BES provides handhelds with the connectivity of TCP/IP which can be accessed through a component known as “Mobile Data Service – Connection Service – MDS-CS. This allows the development of custom application development using data streams on BlackBerry devices which are based on the Sun JME platform.

BES also provides network security in the form of Triple DES or AES encryption standard of all data including e-mail and MDS traffic, which travels between the BlackBerry hand held devices and a BES.

SELECT SERVERPROPERTY ('productversion'), SERVERPROPERTY ('productlevel') and SERVERPROPERTY ('edition').

Difference between undeclared and undefined variables is defined as

Undeclared variables are those that do not exist in a program and are not declared. If the program tries to read the value of an undeclared variable, then a runtime error is encountered.

Undefined variables are those that are declared in the program but have not been given any value. If the program tries to read the value of an undefined variable, an undefined value is returned.

ESDS: Entry Sequence Data Set

KSDS: Key Sequence Data Set

RRDS: Relative Data Set

A keyword that specifies that types in a particular nemespace can be referred to without requiring their full qualified type names. 'using' reserved word always come with namespaces. eg. using systems so because of this useful classes supplied by Microsoft which are contained by system namespace are availble for user.

       => Windows Installer

       => ClickOnce

       => XCOPY

       => Copy Web Site

       => Publish Web Site tool