Explain a situation where you work innovatively ? Explain a situation where you worked overriding a company procedure ? Explain a situation where you achieved a Goal and how you would have achieve it better if you have a chance now ? #TCP Questions How does the TCP work ? Explain Flow control and Windowing in detail ? What are the TCP flags ? Explain in detail when they are used ? If one packet is missed during the transfer(From 8,9,10 packet 10 is missed) how can you get that packet back ? What is Acknowledgment and Sequencing ? What is the difference ? #Routing Protocol Questions You will have to select one of the protocol..Either OSPF or BGP .I chose OSPF. What are the OSPF states ? What is happening at each state ? What are the pre-requisite to be OSPF neighbors ? If a Router is in Ex-Stat State what are the possible cause to stay in that state ? How does OSPF prevent loops ? what are the Stubby area ,totally stuby area and NSSA area what are the types of allowed and blocked at each of the area ? How does traceroute work ? Once a link down how does it notified to the rest of the network ? Why we use areas ? #Other Questions What are the steps your PC browsing the Amazon web site ? How does DNS works ? How does trace route works ? When PC 1 communicate to PC 2 how it knows the Window size of the Receiver ? What happens when there is a packet drop in the Network ? How does TCP over come with it ? How does MPLS ping and MPLS traceroute works ? What is a BGP Route reflector ?
