Answer:
A. Define boundaries
C. Deny access 
D. Delay access
Explanation:
A barrier is a material or structure used to prevent or block access. Barriers can either be natural or structural and are used for many purposes usually for security reasons. The following are functions of barriers either natural or structural:
- Define areas of boundaries
- Delay or slow access. Example is the use of speed bumps to slow down vehicles.
- Provide access to entrances such as the use of gates
- Deny access to unauthorized personnel and allowing authorized personnel. 
 
        
             
        
        
        
Answer:
Explanation:
Always the getaway is the first device in a network, and for that was assigned this IP address 192.168.2.1, is the first address of the block, a network getaway gives us interoperability between networks and contains devices, and is a protocol translator, this is a piece of hardware used for telecommunication networks.
 
        
             
        
        
        
Answer:
The answer is "Connectors".
Explanation:
Please find the Connectors image in the attached file.
In this question, the connectors symbol is usually small throughout the flowcharts. It is used as a connection to display and changes throughout the flux. It was usually marked by major letters that indicate jump points. This diagram visually shows the sequence of events in a system and who is accountable.
 
        
             
        
        
        
Answer:
Mainframes (also called "big iron")[1] are powerful computers used for large information processingjobs. They are mainly used by governmentinstitutions and large companies for tasks such as census, industry and consumer statistics, enterprise resource planning, and financial transaction processing. Mainframe computers are specially used as servers on the World Wide Web (WWW). They are distinct from supercomputers.
 
        
             
        
        
        
Answer:
Airpods, there is ps5 coming out
Explanation: