The answer is D.
Inheritance means that a child class (subclass) can inherit functionality from a parent class (superclass). For example, a class called Person could have 2 subclasses called Student and Teacher. While Student and Teacher have attributes and methods that differ, they also have some that overlap. By passing these overlapping functionalities down from the Person class, we are making the code more reusable. This eliminates the need to write duplicate code and makes the code more readable.
A <em>parameter </em>is a variable used to pass information to a method.
In case the first drive fails, the data will all be backed up onto the second drive, a copy will still be intact.
Answer:
Listed below are the few ways Linux Server can be secured
1. Group policies: This is a way to ensure security by applying group policies and permissions both on the group level and the files level. Through proper permission configuration we can easily restrict other users from accessing those files and directories.
2. Implementation of the firewall: Implementing firewall in each of the Linux server will definitely help in securing your machine from outside threats. Iptables will help in filtering the network traffic that are entering into the system and even going out of the system.
3.Enabling SELINUX: Enabling SELINUX is another way to secure your system especially a Linux Server. Selinux is a powerful security that checks and allows applications to run into the system. It won't allow any untrusted application to run into the system.
