Answer: Dynamic packet filtering
Explanation:
Dynamic packet filtering is the type of fire wall which is used automatically to enabled the modification in the real time based on the traffic content according to the filtering rules.
The dynamic packet filtering also facilitates to monitor the actual state of connection which is active.
It is also used to determine the actual state of network packet and permits the packet of network pass through firewall.
Answer:
Option (4) is the correct answer.
Explanation:
In Java programming language ,array collection starts from 0 index location and ends in a size-1 index location. So to access the last elements the user needs to use a[Size-1] statement. so to modify the value of the last location of the array the user needs to use "a[size-1]= element;".
But when the user wants to add some new value to the end of the array list collection then he needs to use the statement--
a.add(element); //where add is a function, element is a value and a is a array list object.
Another option is invalid because--
- Option 1 is not the correct because "a[3]=element;" modify the value of the 3rd element of the array.
- Option 2 gives a compile-time error because add functions bracts are not closed.
- Option 3 gives the error because a[4] gives the location of the 5th element of the array but the above question says that a is defined with 4 elements.
A. Increase the cell width this is because there is not enough room in the cell to display the number that was given.