Final answer:
The common name for the given ether structure is diethyl ether, and its systematic or IUPAC name is ethoxyethane.
Step-by-step explanation:
The IUPAC and common names of the given ether structure can be determined by following the nomenclature rules for ethers. The larger alkyl group is considered as the parent chain, and the smaller alkyl groups with one oxygen atom are considered as branches or alkoxy groups. In the case of the given structure, which is CH₂CH₂-O-CH₂CH₂, both alkyl groups are ethyl, so the common name would be diethyl ether. The systematic or IUPAC name would be ethoxyethane.