DHCP Exam Questions and Answers

True or false? DHCP can be installed on Server Core? - ANSWER-True It can NOT be installed on Nano Server What does the "D" in DORA stand for? - ANSWER-Discover: When IP networking starts up on a DHCP-enabled client, a special message called a DHCPDISCOVER is broadcast within the local physical subnet. What does the "O" in DORA stand for? - ANSWER-Offer: Any DHCP server that hears the request checks its internal database and replies with a message called a DHCPOFFER, which contains an available IP address. What does the "R" in DORA stand for? - ANSWER-Request: The client receives one or more DHCPOFFERs (depending on how many DHCP servers exist on the local subnet), chooses an address from one of the offers, and sends a DHCPREQUEST message to the server to signal acceptance of the DHCPOFFER. What does the "A" in DORA stand for? - ANSWER-Acknowledge: When the DHCP server receives the DHCPREQUEST, it marks the IP address as being in use (that is, usually, though it's not required). Then it sends a DHCPACK to the client. A contiguous range of addresses. - ANSWER-Scope DHCP uses scopes as the basis for managing and assigning IP addressing information. Enables the DHCP server to provide addresses from more than one scope to clients on the same physical subnet. - ANSWER-Superscope This is helpful when clients within the same subnet have more than one IP network and thus need IPs from more than one address pool. These are IP addresses within the range that you never want automatically assigned. - ANSWER-Exclusions These excluded addresses are off-limits to DHCP. These are IP addresses within the range for which you want a permanent DHCP lease. - ANSWER-Reservations They essentially reserve a particular IP address for a particular device. If no DHCP server is available on the client's network, you can use this to forward DHCP broadcasts from the client's network to the DHCP server. - ANSWER-DHCP relay agent The relay agent acts like a radio repeater, listening for DHCP client requests and retransmitting them through the router to the server. Creates an Active Directory object representing the new server. It helps keep unauthorized servers off your network. - ANSWER-Authorizing DHCP for Active Directory When you install a DHCP server using Windows Server 2016 and Active Directory is present on your network, the server won't be allowed to provide DHCP services to clients until it has been authorized. 003 Router - ANSWER-Used to provide a list of available routers or default gateways on the same subnet. 006 DNS Servers - ANSWER-Used to provide a list of DNS servers. 015 DNS Domain Name - ANSWER-Used to provide the DNS suffix. 028 Broadcast Address - ANSWER-Used to configure the broadcast address, if different than the default, based on the subnet mask. 44 WINS/ NBNS Servers - ANSWER-Used to configure the IP addresses of WINS servers. 46 WINS/ NBT Node Type - ANSWER-Used to configure the preferred NetBIOS name resolution method. 051 Lease - ANSWER-Used to configure a special lease duration. These settings are assigned to all scopes and clients of a particular server. That means if there's some setting you want all clients of a DHCP server to have, no matter what scope they're in, this is where you assign it. - ANSWER-Server Options Specific options (those that are set at the class, scope, or client level) will override server-level options. These settings are assigned only to those clients in a certain subnet. - ANSWER-Scope Options These settings are assigned to a particular reservation. - ANSWER-Client Options If a client is using DHCP reservations, you can assign certain options to that specific client. Client options override scope, server, and class options. Provides an analog to DHCP but for multicast use. - ANSWER-Multicast Address Dynamic Client Allocation Protocol (MADCAP) A MADCAP server issues leases for multicast addresses only. MADCAP clients can request a multicast lease when they want to participate in a multicast.n. Provides the ability to pass addresses to DHCP clients while updating DNS - ANSWER-DHCP integration with Dynamic DNS DHCP Failover Architecture Best suited to deployments where a central office or data center server acts as a standby backup server to a server at a remote site, which is local to the DHCP clients - ANSWER-Hot Standby Mode Two servers operate in a failover relationship where an active server is responsible for leasing IP addresses and configuration information to all clients in a scope or subnet. The secondary server assumes this responsibility if the primary server becomes unavailable. A server is primary or secondary in the context of a subnet. For instance, a server that has the role of a primary for a given subnet could be a secondary server for another subnet. DHCP Failover Architecture Best suited to deployments where both servers in a failover relationship are located at the same physical site. - ANSWER-Load sharing mode In a load sharing mode deployment, which is the default mode of operation, the two servers simultaneously serve IP addresses and options to clients on a given subnet. The client requests are load balanced and shared between the two servers. DHCP uses a set of database files to maintain its knowledge of scopes, superscopes, and client leases. Where do these files live? - ANSWER-systemroot System32 DHCP - ANSWER-The primary database file - It has all the scope data in it True or false? If you want to move the DHCP role to another server you can copy the primary database files and use them directly? - ANSWER-True By copying the files, you also minimize the amount of human error that could be introduced by reentering the information by hand. Configuration that has two stand-alone DHCP servers individually responsible for only a percentage of the IP addresses on a particular subnet. - ANSWER-split-scope configuration The two DHCP servers in a split-scope configuration do not share any lease information between one another, and they do not take over for one another in the event that one of the two DHCP servers fails.