The Network Access Control List (NACL) allows or denies data from entering or exiting a subnet. Thus, option b is correct.
A subnet refers to a portion of a broad network system. It is a division of an IP network system.
A Subnet Security Zone has similar security and protection as is needed by the broader network system. This protection is required due to the segmentation of the network and the data.
Network Access Control List (NACL) is the table list that allows or denies access to the user. It can be used to allow or block the subnet traffic.
Security groups are only used to control and maintain the traffic governing the subnet systems.
Route tables refer to the tables which consist of a list of routes and gateways which would regulate the flow of traffic of the subnet network systems.
What is the security layer that allows/denies data from entering or exiting a subnet?
a. Subnet Security Zone
b. Network Access Control List (NACL)
c. Security Groups
d. Route Tables
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