V2 Retail Senior IT Executive Interview Questions and Answers

DNS stands for Domain Name System. It is a decentralized naming system that translates domain names into IP addresses.

• DNS is used to resolve domain names to their corresponding IP addresses.

• It helps in the efficient routing of internet traffic by translating human-readable domain names into machine-readable IP addresses.

• DNS also provides other important services like email routing and load balancing.

• Example: When you t...read more

RAID stands for Redundant Array of Independent Disks. It is a data storage technology that combines multiple physical disk drives into a single logical unit.

• RAID provides increased performance, fault tolerance, and data protection.

• There are different RAID levels, such as RAID 0, RAID 1, RAID 5, RAID 10, etc.

• RAID 0 offers improved performance by striping data across multiple drives.

• RAID 1 mirrors data across multiple dr...read more

SMTP port is the port number used by the Simple Mail Transfer Protocol (SMTP) to send email messages.

• SMTP port is typically port 25 for unencrypted communication.

• For encrypted communication, SMTP can use port 465 (SMTPS) or port 587 (submission).

• SMTP port can be changed by the email server administrator if needed.

• Example: To connect to an SMTP server using port 587, the client would establish a TCP connection to the se...read more

A child domain is a subdomain within a larger domain, created to organize and manage specific resources or users.

• Child domains are created to delegate administrative control and manage resources independently.

• They inherit policies and settings from the parent domain but can have their own unique policies as well.

• For example, in a company's domain structure, a child domain may be created for a specific department or loc...read more

Fixboot is a command in Windows operating systems used to repair or rebuild the boot sector of the system's hard drive.

• Fixboot is a command-line utility used to fix issues related to the boot sector of a Windows system.

• It is commonly used to repair boot problems caused by corrupted or missing boot files.

• Fixboot can be run from the Windows Recovery Environment or using the Windows installation media.

• The command replaces...read more

IMAP port NO is the port number used by the IMAP protocol for email retrieval.

• IMAP uses port number 143 for unencrypted connections.

• IMAP over SSL/TLS uses port number 993 for encrypted connections.

• Port numbers can be changed based on server configurations.

• Example: IMAP server address: mail.example.com, port number: 143