Traffic flow in Transparent firewall mode

Q What is the default state for traffic moving from higher security interface to lower security interface

A By default, traffic is allowed

Q What is the default state for traffic moving from lower security interface to higher security interface
A Blocked or not allowed

Q Which traffic is allowed in both direction by default
A ARP traffic or managment traffic

Q Which traffic is inspected by default
A TCP and UDP

Q How can we controll ARP traffic 
A Using ARP Inspection

Q How can we allow traffic from lower security interface to higher security interface
A Using ACL or extended access list on low security interface