What opration system you are using. What are the latest version of windows. What are zip and unzip file. Primary key is null . Primary key is zero. What is JVM. What is LAN and WAN.

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The questions cover topics like operating systems, file compression, primary keys, JVM, and network types.

The latest versions of Windows are Windows 10 and Windows Server 2019.
ZIP is a file compression format used to reduce file size and bundle multiple files together.
Unzip is the process of extracting files from a ZIP archive.
A primary key is a unique identifier for a database record. It cannot be null.
A primary key can have a value of zero if it is an auto-incrementing field.
JVM stands for Java Virtual Machine, which is an execution environment for Java applications.
LAN stands for Local Area Network, which is a network that connects devices within a limited area.
WAN stands for Wide Area Network, which is a network that connects devices over a large geographical area.

What opration system you are using. What are the latest version of windows. What are zip and unzip file. Primary key is null . Primary key is zero. What is JVM. What is LAN and WAN.

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