GIAC Exam GSEC Topic 9 Question 18 Discussion

The DNS service resolves host name to IP Address.

A DNS server is a computer that runs the Domain Name System (DNS) service. It contains host name-to-IP address mappings, IP address-to-

host name mappings, information about the domain tree structure, etc. A DNS server is also used to resolve DNS client queries.

Answer option B is incorrect. Dynamic Host Configuration Protocol (DHCP) is a TCP/IP standard used to dynamically assign IP addresses to

computers, so that they can communicate with other network services. It reduces the complexity of managing network client IP address

configuration. A DHCP server configures DHCP-enabled client computers on the network. It runs on servers only. It also provides integration

with the Active Directory directory service.

Answer option D is incorrect. Windows Internet Name Service (WINS) is a name resolution service that registers and resolves NetBIOS names

to IP addresses used on the network. WINS is a Microsoft standard and is used only on networks comprising Windows hosts.

Answer option A is incorrect. The Computer Browser service is used by Windows-based computers on the network. Computers designated as

browsers maintain an up-to-date list of computers and provide the list to applications when requested. When a user attempts to connect to a

resource in the network, the Browser service is contacted to provide a list of available resources.