Answer: Two direction
Explanation: Doubly linked list is a data structure which contains node's end linked with the start of the next node and also a previous pointer .These node persist two link fields and one data field in the doubly linked list.
The transversing as well as searching can be done in both direction. Inorder transversal (forward direction)and the reverse order (backward direction)transversal are the techniques through which the reversal is carried out in two ways.
Answer: Cyber warfare is a real threat since being able to hack another computer especially a countries computer with lots of info in their weaknesses can lead to their downfall. Since they can even possibly if their skilled enough hack their entire data base system and leak it to the public and that wouldn't be good for them not in a single possible way. That's the reason it's dangerous not only that but also because they can access their servers; which can let them access anything online from the whole country including banking information military info which can let them know which area there gonna go to next equipment there gonna bring and where they're gonna launch missiles, bombs, even nukes if they decide to launch one. And being able to hijack the computer that launches the nukes can make the hacker launch the nuke to a different place or launch the nuke on the country trying to launch the nuke.
Explanation:
Integers, Strings, and Objects. Hope this helped, have a great day! :D