Skip to content

CS Professional · Artificial Intelligence, Data Analytics and Cyber Security - Laws and Practice · Network Basics and Security

Three branches of an Indian bank in different states share a customer database through leased lines and the public internet using a secured tunnel, so that staff at each branch see the same data as if on one internal network. Which description fits best?

It is a WAN extended securely through a VPN. The branches are in different states, which is wide-area connectivity, and the encrypted tunnel over public infrastructure makes remote sites behave as one private network. LAN and PAN types cover only small areas.

  1. AA WAN extended securely using a Virtual Private Network (VPN)Correct
  2. BA PAN secured using Bluetooth pairing
  3. CA LAN using only a hub and no external links
  4. DA peer-to-peer network limited to one room

Explanation

Branches in different states imply a wide area, so it is a WAN. Tunnelling over a public network to behave like a private network is the function of a VPN. A LAN or PAN cannot span states.

Did you get it right without looking?

One question tells you little. A timed set on Network Basics and Security shows your real accuracy, how long you take and where you lose marks.

Practise Network Basics and SecurityFree diagnostic mock

More Network Basics and Security questions