What do we call a real-time, in-memory version of an object?

answer:

cant tell you the answer, but hope this could

explanation:

an in-memory database (imdb, also main memory database system or mmdb or memory resident database) is a database management system that primarily relies on main memory for computer data storage. it is contrasted with database management systems that employ a disk storage mechanism. in-memory databases are faster than disk-optimized databases because disk access is slower than memory access, the internal optimization algorithms are simpler and execute fewer cpu instructions. accessing data in memory eliminates seek time when querying the data, which provides faster and more predictable performance than disk.

given the options, i would say your best bet is c. the modem supports up to 56 kbps, which is too low for video streaming. dial up modems use actual phone lines, which only can go up to 56 kbps as that's more than sufficient for traditional phone calls. this is also the reason why when a dial-up modem connects, you hear all those sounds. it's literally using the phone line to establish a connection.