Technology Questions

The protocol specifies that frames need to be numbered. This is done by using sequence numbers. A field is added to the data frame to hold the sequence number of that frame. Since we want to minimize the frame size, the smallest range that provides unambiguous communication. The sequence numbers can wrap around.

The function of PAD (Packet Assembler Disassembler) is described in a document known as X.3. The standard protocol has been defined between the terminal and the PAD, called X.28; another standard protocol exists between hte PAD and the network, called X.29. 

:As these are standard exceptions, they need to be defined in the standard block, So it is defined under namespace std.

In GUI testing, need to cover the customer requirement if don't have to validate  Font size, colors, spellings(labels) etc.

Every application should follow Microsoft rules like

- Controls should be Initcap (i.e every label should start with Capital letter )Can observe that in Win applications every label starts with Caps

- OK or Cancel button should exist

- Controls should not be overlapped

- Controls should be alligned properly (left side alignment is mandatory but the right side is optional)

- Controls should be visible

- Short cut keys should be provided

- System menu should exist (i.e if u press Alt key + Space bar a menu will appear at the left most corner )

- Mouse pointer events 

Colors, Label Names, Tab Order, Alignment, graphs , Navigation of the software to test in GUI Testing.

Autoboxing is the automatic conversion that the Java compiler makes between the primitive types and their corresponding object wrapper classes. For example, converting an int to an Integer, a double to a Double, and so on. If the conversion goes the other way, this is called unboxing. 

Android uses Dalvik Virtual Machine (DVM) which requires a special bytecode. We need to convert Java class files into Dalvik Executable files using an Android tool called "dx". In normal circumstances, developers will not be using this tool directly and build tools will care for the generation of DVM compatible files.

_VIEWSTATE is the command used to implement view state

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.