Which option is not available in the DHCP options set?

Answer - C.

The following are the supported options.

1

domain-name-servers.

2

domain-name.

3

ntp-servers.

4

netbios-name-servers.

5

netbios-node-type.

For more information on DHCP Options set , please refer to the below link:

http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_DHCP_Options.html

DHCP (Dynamic Host Configuration Protocol) is a network protocol used to dynamically assign IP addresses and other network configuration parameters to devices on a network. DHCP options are additional settings that can be configured on a DHCP server to provide additional information to clients.

The DHCP options set consists of a series of key-value pairs that are sent from the DHCP server to the DHCP client during the DHCP negotiation process. Some of the commonly used DHCP options include domain-name-servers, domain-name, ntp-servers, subnet-mask, and routers.

Out of the given options, IP-Range is not an option in the DHCP options set. The IP range is a network setting that specifies the range of IP addresses that can be assigned to devices on a network. It is typically configured on the network's subnet mask or router, not as a DHCP option.

Let's briefly discuss the other options:

A. domain-name-servers: This option specifies the IP addresses of the DNS servers that clients should use for name resolution.

B. domain-name: This option specifies the DNS domain name for the network. It is used by clients to append to short names when resolving hostnames.

C. IP-Range: Not an option in the DHCP options set.

D. ntp-servers: This option specifies the IP addresses of the NTP (Network Time Protocol) servers that clients should use for time synchronization.

In summary, DHCP options are used to provide additional network configuration parameters to clients during the DHCP negotiation process. IP-Range is not an option in the DHCP options set.