A device that interconnects two or more networks and selectively interchanges packets of data between them is known as

The Correct answer is Router.

Key Points

• Router.
  • A router is an electronic device that interconnects two or more networks, and selectively interchanges packets of data between them.
  • Routers perform traffic-directing functions on the Internet. Data sent through the internet, such as a web page or email, is in the form of data packets.
  • A packet is typically forwarded from one router to another router through the networks that constitute an internetwork until it reaches its destination node.
  • A router is connected to two or more data lines from different IP networks.

Additional Information

• Switches
  • ​A network switch forwards data packets between devices.
  • Switches are networking devices operating at layer 2 or a data link layer of the OSI model.
  • Switches can be hardware devices that manage physical networks or software-based virtual devices.
• Hub
  • ​A network hub is a node that broadcasts data to every computer or Ethernet-based device connected to it.
  •  A hub has many ports in it. They are generally used to connect computers in a LAN.
• Gateway:
  • A gateway is a crucial network node in telecommunications that serves as a bridge between two networks with different transmission protocols. 
  • Gateways are used to connect and facilitate communication between two networks that use different transmission protocols or technologies. 
• Nibble:
  • In computing, a nibble is a four-bit aggregation or half an octet.
  • It is also known as a half-byte or tetrade.
  • In a networking or telecommunication context, the nibble is often called a semi-octet, quadbit, or quartet.
  • A nibble has sixteen (24) possible values.
  • A nibble can be represented by a single hexadecimal digit (0–F) and called a hex digit.
• ​Cable:
  • ​Network cabling is the process of connecting devices to an Internet source.
  • Network cables can be divided into four types: coaxial, shielded twisted pair (STP), unshielded twisted pair (UTP), or fibre optic.