When a client computer sends a request to a Domain Name System (DNS) server, what type of packet is sent?

Q: When a client computer sends a request to a Domain Name System (DNS) server, what type of packet is sent?

or

Q: What kind of packet does a client computer send to a DNS server when it makes a request?

• SYN/ACK
• ACK
• TCP
• SYN 

Explanation: A Domain Name System (DNS) query packet is sent by a client computer whenever it submits a request to a DNS server by way of the Internet. The client is attempting to resolve the domain name into an IP address, and this packet includes the domain name they need.