The technologies listed—Closed-circuit Television (CCTV), Radio Frequency Identification (RFID), and Wireless Local Area Network (WLAN)—are all considered short-range communication technologies due to their operational ranges. CCTV systems typically operate over short distances for surveillance, RFID facilitates data exchange over limited proximities through passive and active tags, and WLAN typically connects devices within a confined area like homes or offices, forming a local network. Understanding these technologies underlines the importance of communication infrastructure in today's digital age, which is relevant to various aspects of governance and security as explored in UPSC Prelims GS Paper I.