Which of the following systems would MOST likely be found in a screened subnet?
Click on the arrows to vote for the correct answer
A. B. C. D.B.
A screened subnet, also known as a DMZ (demilitarized zone), is a network architecture that separates an organization's internal network from the external network or the internet. The screened subnet provides an additional layer of security to protect the internal network by isolating the externally facing services and servers in a separate zone.
To answer the question, we need to understand what types of systems are typically deployed in a screened subnet. The systems that are typically deployed in a screened subnet are those that require external access, such as internet-facing servers or services that need to be accessed by external clients. These systems are isolated from the internal network and have strict access controls in place to ensure that only authorized traffic is allowed.
Now let's look at the options provided in the question:
A. RADIUS (Remote Authentication Dial-In User Service) - This is a networking protocol that provides centralized authentication, authorization, and accounting management for users who connect and use a network service. RADIUS is typically used for managing remote access, such as dial-up or VPN connections. While RADIUS could be deployed in a screened subnet, it is not a system that requires external access.
B. FTP (File Transfer Protocol) - This is a standard network protocol used to transfer files from one host to another over a TCP-based network, such as the internet. FTP is often used for transferring large files or for web development. FTP is a system that requires external access and could be deployed in a screened subnet.
C. SQL (Structured Query Language) - This is a language used for managing and manipulating databases. SQL could be used for internal or external services and is not specifically tied to an external-facing system. Therefore, SQL is not a system that requires external access and would not typically be deployed in a screened subnet.
D. LDAP (Lightweight Directory Access Protocol) - This is a networking protocol used for accessing and maintaining distributed directory information services over a TCP/IP network. LDAP is commonly used for authentication and authorization purposes and could be deployed in a screened subnet.
Based on the above explanations, the correct answer to the question is B. FTP, as it is a system that requires external access and could be deployed in a screened subnet.