Hurix Systems System Administrator Interview Questions and Answers

IP address ranges are divided into classes: A, B, C, D, and E.

• Class A: 1.0.0.0 to 126.0.0.0

• Class B: 128.0.0.0 to 191.255.0.0

• Class C: 192.0.0.0 to 223.255.255.0

• Class D: 224.0.0.0 to 239.255.255.255

• Class E: 240.0.0.0 to 255.255.255.255

There are different types of backups, including full, incremental, and differential backups.

• Full backup: A complete backup of all data and files.

• Incremental backup: Only backs up the changes made since the last backup.

• Differential backup: Backs up all changes made since the last full backup.

• Scheduled backups: Regularly scheduled backups to ensure data is protected.

• Offsite backups: Storing backups in a separate location...read more

A VPN is a virtual private network that allows secure remote access to a private network over the internet.

• VPN creates a secure and encrypted connection between the user's device and the private network.

• It masks the user's IP address and location, providing anonymity and privacy.

• VPN can be used to access restricted content and bypass internet censorship.

• Examples of VPNs include OpenVPN, NordVPN, and ExpressVPN.

VMware ESXi is a type-1 hypervisor used for virtualization.

• ESXi is a bare-metal hypervisor that runs directly on server hardware.

• It allows multiple virtual machines to run on a single physical server.

• ESXi is a popular choice for enterprise-level virtualization.

• Other types of hypervisors include type-2 hypervisors like VirtualBox and VMware Workstation.

• Another type of hypervisor is the container hypervisor, which is use...read more

Subnetting is the process of dividing a network into smaller subnetworks.

• Subnetting allows for better network management and more efficient use of IP addresses.

• It involves creating a subnet mask to determine the network and host portions of an IP address.

• Subnetting can be done using binary arithmetic or by using online subnet calculators.

• Example: A network with IP address 192.168.1.0 can be subnetted into smaller netwo...read more