You are the administrator of a new network at Contoso, Ltd. The network consists of a single Active Directory domain. All servers run Windows Server 2003. Client computers run either Windows XP Professional or Windows 98. All Windows 98 computers have the Active Directory Client Extensions software installed. The network consists of three physical subnets.
Each subnet contains a domain controller and a server that runs DHCP. Each subnet also contains a server that runs both the DNS Server service and the WINS service. All client computers receive their TCP/IP configuration information from the DHCP server that is located on their local subnet. All servers except the domain controllers, the DHCP servers, and the DNS and WINS servers also receive their TCP/IP configuration information from the DHCP server that is located on their local subnet. All of the Windows 98 computers are located on a single subnet. The DHCP scope on this subnet is configured with the options shown in the exhibit.
All DHCP servers are configured with similar options. Users of the Windows 98 computers report that they cannot connect to resources on the Windows Server 2003 computers located on any subnet. When they attempt to connect to a shared resource by using \\servername\sharename in the Run command, they receive the following error messag* “Server .” The users can successfully connect to Web-based resources located on the same servers. When you attempt to connect to the servers by using the ping command on an affected Windows 98 computer, you can connect successfully.
The users of the Windows XP Professional computers do not report the same problems. You need to ensure that the users of the Windows 98 computers can connect to shared resources on the Windows Server 2003 computers.
What should you do?
Exhibit:
A.
On each DHCP server, remove the Microsoft Disable NetBIOS Option from the scope options.
B.
On the affected subnet’s DHCP server, configure the scope options to use the Windows 98 vendor class.
C.
On the affected subnet’s DHCP server, remove the WINS/NBT Node Type from the scope options.
D.
On each DHCP server, add the NetBIOS over TCP/IP NBDD DHCP scope option to the scope options.
Explanation:
The main advantage of disabling NetBIOS is improved network security. NetBIOS as a service stores information about network resources that can be collected by any host through broadcast- based queries. Feasibly, this information could be exploited by a malicious intruder. Another advantage of disabling NetBIOS is that doing so can simplify administration by reducing the number of naming infrastructures that you must configure, maintain, and support.Reference:
J. C. Mackin, and Ian McLean, MCSA/MCSE self-paced training kit (exam 70-291): implementing, managing, and maintaining a Microsoft Windows Server 2003 network infrastructure, Microsoft Press, Redmond, Washington, 2004, Chapter 4.
James Chellis, Paul Robichaux & Matthew Sheltz, MCSA/MCS* Windows Server 2003 Network Infrastructure Implementation, Management, and Maintenance Study Guide, Sybex Inc., Alameda, 2004, Chapter 5
“A Composite Solution With Just One Click” – Certification Guaranteed 116 Microsoft 70-293 Exam