Technical Networking Army

  Scenario : -   Zedtel organization have 1000+ virtual machines in different region. company’s security team found some vulnerability. To prevent outside DDos attack Company security team require to perform eventful security task at a time with timid timeline globally at different Machines at different zone. How’s it possible if single VM manually takes 10 minutes to perform operation. So, how can complete it asap?? In this scenario Lambda function role is crucial to execute this task. It is a serverless service to run code without provisioning any instance. Characteristics of Lambda Function: -  LAMBDA function has some important characteristics: 1.       No server management 2.       Flexible scaling 3.       No ideal capacity 4.       High availability Lambda Function Execution Cycle:-                        ...

  VPN: - -            It is called virtual private network. -          It provides establishment of secure private network between 2 end points. In MPLS network basically L2VPN & L3VPN services are used as per routing exchange information between CE & PE routers. L2 VPN: 1.       There is no routing interaction occurs between CE & PE routers. 2.      Epipe , VPWS, VPLS is examples of L2VPN service. Scenario-: company “Purl pay” headquarter at New York location and their multiple branches at Chicago, New Jersey and Houston locations then company wants point-to-point connections between HQ and all sub-branches then VPLS service is used.   & in other case if company wants to communicate only between New York HQ to New Jersey branch office : EPIPE , VPWS, F PIPE , A PIPE type point-to-point service can be configured depending on techn...