Institution: Bangladesh Bank Exam: Officer (General) -Ansar VDP Unnayan | BD House Building Finance Corporation 28.09.2018 ||
Topic: International General Knowledge, Subject: International GK (আন্তজার্তিক বিষয়াবলী)

Best Answer Explained in Below-:

The correct answer is A) LAN, which stands for Local Area Network. A LAN is a network that connects computers and devices in a limited geographical area, such as a home, office, or small building. This type of network is designed to facilitate communication and resource sharing among devices that are relatively close to one another. LANs typically utilize Ethernet or Wi-Fi technologies to transmit data at high speeds.

In contrast, the other options refer to concepts that do not pertain to networking in the same manner. B) DSL (Digital Subscriber Line) is a technology used for high-speed internet access, connecting users to a larger network but not defining a local network itself. C) USB (Universal Serial Bus) is a standard for connecting peripheral devices to computers, not a network type. D) RAM (Random Access Memory) is a type of computer memory used for temporary data storage, unrelated to networking.

Thus, when it comes to identifying a small, single-site network, LAN is the most appropriate option, as it specifically denotes a local network setup designed for limited geographic connectivity and resource sharing.