$1\mathrm{.}1$ in the $3-$ Schema Architecture, data storage details are part of the Internal Schema,

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$1\mathrm{.}2$ The DB metadata is the records or tuples that are stored on it at a moment of time.

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$1\mathrm{.}3$ If you have enough money, you may consider using DBMS in your project. $[-$ x $]$

$1\mathrm{.}4$ If you want to code an APP to manage the user images on his phone, then it is better to use a Distributed DBMS$.[-$ x $]$

$1\mathrm{.}5$ The $3$ Tier Architecture helps in distributing tasks for coding team members. $[-$ x $]$

$1\mathrm{.}6$ When you code an app for iPhone, then MySQL company team are acting on the scene for your project. $[-$ x $]$

$1\mathrm{.}7$ If you want to code an APP to manage the user images on his phone, then you must use a Multiuser DBMS$.[-$ x $]$

$1\mathrm{.}8$ Concurrency Management is not an important feature in modern DBMSS$.[-$ x $]$