Due to regulatory requirements, server in a global organization must use time synchronization.
Which of the following represents the MOST secure method of time synchronization?
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A. B. C. D.B.
Time synchronization is important in a global organization to ensure that all devices and servers have the same accurate time. In this case, regulatory requirements dictate that time synchronization should be implemented. It is important to note that the security of the time synchronization method used can have an impact on the overall security of the organization.
The Network Time Protocol (NTP) is commonly used for time synchronization in networks. NTP servers are categorized into strata based on their level of synchronization with a reference time source. Stratum 0 servers are directly connected to a reference time source, such as an atomic clock, while Stratum 1 servers are connected to Stratum 0 servers. The stratum level increases as the number of servers in the synchronization hierarchy increases.
Option A suggests that the server should connect to external Stratum 0 NTP servers for synchronization. This means that the server will connect directly to a reference time source, which is the most accurate method of time synchronization. However, connecting directly to a Stratum 0 server may not always be possible or practical, as there may be limited access to such servers, and they may be vulnerable to attacks due to their criticality.
Option B suggests that the server should connect to internal Stratum 0 NTP servers for synchronization. This method is similar to Option A, but the server will connect to Stratum 0 servers within the organization's network, rather than external servers. This approach may provide greater control and security over the time synchronization process, as the organization can implement additional security measures to protect the internal servers.
Option C suggests that the server should connect to external Stratum 1 NTP servers for synchronization. This means that the server will connect to a server that is one level below a Stratum 0 server, and is likely to be more accessible and less vulnerable to attacks than a Stratum 0 server. This approach can provide accurate time synchronization while still maintaining a reasonable level of security.
Option D suggests that the server should connect to external Stratum 2 NTP servers for synchronization. This approach involves connecting to servers that are two levels below a Stratum 0 server, which may not provide as accurate time synchronization as the other options.
Therefore, the MOST secure method of time synchronization would be Option A, connecting to external Stratum 0 NTP servers. However, if this is not feasible or practical, Option B, connecting to internal Stratum 0 NTP servers, would be the next best option. Option C, connecting to external Stratum 1 NTP servers, is also a viable option that provides a balance between accuracy and security. Option D, connecting to external Stratum 2 NTP servers, is the least secure option and should be avoided if possible.