What is meant by synchronous dynamic random access memory (sdram)? a. a computer network memory capability that allows nodes communicating over a non-secure network to prove their identity to one another in a secure mannerb. dynamic random access memory (dram) that has a synchronous interfacec. a public interest research group in washington, d. c., established in 1994 to focus public attention on emerging civil liberties issues and to protect privacyd. a web cache/proxy