!!! Overview
[{$pagename}] are Options Bits presented in [Big-Endian] [byte] order and are returned as part of the [Netlogon attribute] when using the [LDAP ping] [SearchRequest]


[{$pagename}] Options [bits]:
* DS_PDC_FLAG, 0x00000001: The server holds the [PDC] [FSMO] role (PdcEmulationMasterRole)
* DS_GC_FLAG, 0x00000004: The server is a [Global Catalog] [Domain Controller] and will accept and process messages directed to it on the [Global Catalog] ports
* DS_LDAP_FLAG, 0x00000008: The server is an [LDAP] server
* DS_DS_FLAG, 0x00000010: The server is a [Domain Controller]
* DS_KDC_FLAG, 0x00000020: The server is running the [Kerberos] [Key Distribution Center] service.
* DS_TIMESERV_FLAG, 0x00000040: The Win32 [Windows Time service], as specified in [W32Time], is present on the server.
* DS_CLOSEST_FLAG, 0x00000080: The [DcSiteName] and [ClientSiteName] are the same and is a hint to the client that it is well-connected to the server in terms of speed.
* DS_WRITABLE_FLAG, 0x00000100: Indicates that the server is not an [RODC]. As described in section 3.1.1.1.9, all NC replicas hosted on an [RODC] do not accept originating updates.
* DS_GOOD_TIMESERV_FLAG, 0x00000200: The server is a reliable time server.
* DS_NDNC_FLAG, 0x00000400: The [NamingContext] is an [application] [NamingContext].
* DS_SELECT_SECRET_DOMAIN_6_FLAG, 0x00000800): The server is an [RODC].
* DS_FULL_SECRET_DOMAIN_6_FLAG, 0x00001000: The server is a writable DC, not running [Windows Server 2000] [Operating System] through [Windows Server 2003 R2] [Operating System].
* DS_WS_FLAG, 0x00002000: The Active Directory Web Service, as specified in [MS-ADDM], is present on the server.
* DS_DS_8_FLAG, 0x00004000: The server is  not running [Windows Server 2000] [Operating System] through [Windows Server 2008] R2 [Operating System].   
* DS_DS_9_FLAG, 0x00008000: The server is not running [Windows Server 2000] through [Windows Server 2012] [Operating System].
* DS_DNS_CONTROLLER_FLAG, 0x20000000: The server has a [DNS Domain] name.
* DS_DNS_DOMAIN_FLAG, 0x40000000: The [NamingContext] is a [DefaultNamingContext]
* DS_DNS_FOREST_FLAG, 0x80000000: The [NamingContext] is the [Forest Root Domain]

!! More Information
There might be more information for this subject on one of the following:
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* [#1] - [https://msdn.microsoft.com/en-us/library/cc717362.aspx|https://msdn.microsoft.com/en-us/library/cc717362.aspx/|target='_blank'] - based on information obtained 2016-05-19- 
* [#2] - [6.3.1.9 NETLOGON_SAM_LOGON_RESPONSE_EX|https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-adts/8401a33f-34a8-40ca-bf03-c3484b66265f?redirectedfrom=MSDN|target='_blank'] - based on information obtained 2020-02-02 
* [#3] - [6.3.1.2 DS_FLAG Options Bits|https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-adts/f55d3f53-351d-4407-940e-f53eb6154af0|target='_blank'] - based on information obtained 2020-02-02