Bootstrap Protocol (BOOTP) is a protocol used by computers on a network to obtain an IP address and other configuration information. It is commonly used during the boot process to help computers on a network find a server to boot from. DHCP (Dynamic Host Configuration Protocol) is a newer protocol that is an extension of BOOTP and is now widely used in modern networks.

GPRS (General Packet Radio Service) core networks are a specialized skill in the telecom industry. These networks use packet-switched technology to transmit data over cellular networks, allowing for more efficient and cost-effective data transmission. Having knowledge of GPRS core networks includes understanding the architecture, protocols, and equipment used in building and operating these networks. With the increasing demand for data services, a strong understanding of GPRS core networks is becoming increasingly important for professionals in the telecom industry.

Netstat is a command-line utility used to display information about network connections and network statistics. It shows active network connections, open ports, and other information related to network activity on a system. This information can be useful for troubleshooting network issues, identifying potential security threats, and monitoring network performance.

Telnet is a client-server communication protocol that allows one computer to access another computer's terminal remotely over a network. It is used for remote administration, file transfer, and troubleshooting, and requires a secure login and password to ensure the confidentiality of the communication. Telnet also allows for the execution of commands on the remote computer as if the user was physically present at the machine. Knowledge of Telnet is important for system administrators and network engineers.

Video On Demand (VOD) is a streaming service that allows users to access and watch videos or movies on demand. The process of creating and managing VOD content involves a specialized skill set that includes video production, encoding, hosting, delivery, and management. It requires technical expertise and knowledge of the latest technologies, as well as a deep understanding of the target audience and the content they are seeking. Successful VOD professionals must be able to adapt to changing trends and technologies while maintaining high-quality content and seamless user experiences.