Hitachi Interview Questions and Answers

The question covers various topics related to networking protocols and technologies.

• OSI layers: Understand the flow and purpose of each layer in the OSI model.

• DHCP & DHCP Relay: Know how DHCP works and the role of DHCP relay agents.

• DNS: Understand the DNS resolution process and various record types.

• TCP: Learn about TCP connection establishment, data transfer, and termination.

• HTTP & HTTPS: Understand the basics of HTTP and the differences with HTTPS.

• SSL/TLS Handshake: Know the...read more

LVM commands for creating logical volumes

• Use 'pvcreate' to initialize physical volumes

• Use 'vgcreate' to create volume groups

• Use 'lvcreate' to create logical volumes within volume groups

• Use 'lvextend' to extend the size of logical volumes

• Use 'lvresize' to resize logical volumes

ARP, DNS, and DHCP are essential networking protocols that facilitate communication between devices on a network.

• ARP (Address Resolution Protocol) is used to map IP addresses to MAC addresses on a local network.

• DNS (Domain Name System) translates domain names into IP addresses to enable communication over the internet.

• DHCP (Dynamic Host Configuration Protocol) assigns IP addresses dynamically to devices on a network.

• ARP operates at the data link layer, DNS at the application ...read more