I think not but I'm not sure
Answer:
Service Password encryption
Explanation:
It is noted that the command used on routers, to get the data of all the passwords in a router configuration file encrypted is the service password encryption.
Service password encryption solely affects plain text passwords types that includes that of the line passwords or that of the enable password. The feature uses a simple substitution method to create a "secure" non-text password displayed in the configuration.
For the first question, you would just add the parenthesis to the string mutation1:
String word = "sadly";
String mutation1 = "(" + word + ")";
For the second you need the method substring from the String class:
It is defined as String.substring(begining, ending);
String name = "Smith";
String firstCharacter = name.substring(0, 1);
0 is considered the beginning of the string, then you get the next 1 characters.
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.