Happiest Minds Technologies Senior Architect Interview Questions and Answers for Experienced

OSPF states are the different stages a router goes through while establishing and maintaining a neighbor relationship.

• OSPF states include Down, Init, 2-Way, Exstart, Exchange, Loading, and Full

• In the Down state, the router has not yet established a neighbor relationship

• In the Init state, the router has sent a Hello packet but has not received a response

• In the 2-Way state, the router has received a Hello packet from a n...read more

The size of routing table is determined by the number of network prefixes and the number of routes.

• The size of routing table is directly proportional to the number of network prefixes and the number of routes.

• The size of routing table can be estimated by analyzing the number of unique IP addresses and the number of routing protocols used.

• The size of routing table can be reduced by summarizing routes and using route agg...read more

To increase server performance for a million connections per sec, we can optimize hardware, use load balancing, and implement caching.

• Optimize hardware by upgrading RAM, CPU, and network interface cards

• Use load balancing to distribute traffic across multiple servers

• Implement caching to reduce server load and improve response time

• Use a content delivery network (CDN) to serve static content

• Use compression to reduce the s