Which of the following server types stores the list of network usernames and passwords required for authentication?
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A. B. C. D.B.
The correct answer is B. Directory.
A Directory server, also known as a Directory Service, is a type of server that stores and manages network resources such as user accounts, computer accounts, printers, and other network devices. The primary function of a Directory server is to provide a centralized location for storing and retrieving information about the network's resources.
One of the key pieces of information that a Directory server stores is the list of network usernames and passwords required for authentication. This information is usually stored in a database or repository that is managed by the Directory server. When a user logs into the network, their credentials are verified by the Directory server to ensure that they are authorized to access the resources they are requesting.
File servers, on the other hand, are servers that are primarily used for storing and sharing files across a network. While they may require authentication to access certain files or folders, they do not typically store the list of network usernames and passwords required for authentication.
DHCP (Dynamic Host Configuration Protocol) is a network protocol used to automatically assign IP addresses to devices on a network. While DHCP servers may be used to authenticate devices on a network, they do not typically store user credentials.
SNMP (Simple Network Management Protocol) is a protocol used to manage and monitor network devices. While SNMP servers may provide some level of authentication, they do not typically store the list of network usernames and passwords required for authentication.
In summary, a Directory server is the server type that stores the list of network usernames and passwords required for authentication.