The Domain Name System (DNS) is a hierarchical distributed naming system for computers, services, or any resource connected to the Internet or a private network.nternet name servers and a communication protocol implement the Domain Name System. A DNS name server is a server that stores the DNS records for a domain name; a DNS name server responds with answers to queries against its database.
Direct Entry Petty Officer Program-Ideal for applicants with professional or prior service skills that relate to a Coast Guard job field, and are between the ages of 27 and 40. You may be able to enlist with a higher rank (E4), with more pay, increased benefits and greater responsibility.
In the United States Navy, the maximum age allowed to enlist and ship to basic training is 34 years old. In the Naval Reserves, the maximum age is 39 years old. In the United States Marine Corps, the maximum age allowed to enlist and ship to basic training is 29 years old.