Exam N10-008 topic 1 question 392 discussion

So many wrong answers on here. The DHCP client sends broadcast request packets to the network; the DHCP servers respond with broadcast packets that offer IP parameters, such as an IP address for the client. After the client chooses the IP parameters, communication between the client and server is by unicast packets

Just another vote for B here, IHateTestsSoMuch is correct More detail from Mike Meyers "When a DHCP client boots up, it automatically sends out a DHCP Discover UDP datagram to the broadcast address, 255.255.255.255. This DHCP Discover message asks “Are there any DHCP servers out there?” The client can’t send unicast traffic yet, as it doesn’t have a valid IP address that can be used."

This site is filled with incorrect answers

DORA the explorer. Client sends a broadcast on PORT (67,68?) to the LAN and if the DHCP server, either Windows server, router or firewall, is listening on that subnet it replies with an offer. But if the DHCP server is on another subnet then default gateway gets involved. But to answer this question intially its the broadcast address to get the ball rolling.

B, send to the broadcast

The device won't have an IP address at this point or know what the default gateway IP is, so it sends a packet to 255.255.255.255 initially (the broadcast address)

i agree with the B. it is IPv4 so it will need send a broadcast. the default setting on a gateway is to drop the requests. unless an helper is configured. its not stated there is one so it only leaves B.

This question was meant to be tricky. The key word here (I believe) is 'a' server. If it was local, it would be broadcast. If it was remote, it would be default gateway. DHCP servers need: a pool of legitimate IP, subnet mask, and IP address for default gateway. Answer A

B- broadcast.

B. Broadcast address

A is correct

The network device needs to send a broadcast request to discover a server that can provide it with an IPv4 address. A broadcast address is a special address used to send a message to all devices on a network segment. In IPv4 networks, the broadcast address is typically represented as the highest possible IP address for the network segment, with all bits set to 1. For example, in a network with an IP address range of 192.168.0.0/24, the broadcast address would be 192.168.0.255. When a device needs to obtain an IPv4 address from a server, it sends a broadcast message to the network segment requesting an available IP address. The DHCP server on the network will receive this broadcast message and respond with an available IP address for the device to use. The default gateway is a device that is used to forward traffic from one network to another, and is not involved in the process of assigning IP addresses to devices. Unicast addresses are used to send messages to a specific device on a network, and are not suitable for broadcasting messages to all devices on the network. Link-local addresses are used for communication within a single network segment and cannot be used to discover a server for obtaining an IPv4 address.

The network device needs to send a request to the broadcast address in order to discover a server that can provide it with an IPv4 address. When a device is configured to obtain an IP address automatically via DHCP (Dynamic Host Configuration Protocol), it sends a broadcast message to the network requesting an IP address. This message is sent to the broadcast address, which is an address that is used to send a message to all devices on a network segment.

Broadcast, IHateTestsSoMuch is correct

B. Broadcast address A network device needs to discover a DHCP server in order to obtain an IP address, it will send a broadcast message called DHCPDISCOVER. This broadcast message is sent to the broadcast address (255.255.255.255) on the local network segment. DHCP servers listen for these broadcast messages, and the first server to respond will provide the device with an IP address. The default gateway, unicast address and link-local address are not the destination address to send DHCP request.