Firefly e-Ventures Interview Questions and Answers

An annuity is a financial product that provides a series of payments at regular intervals.

• Fixed annuity: provides a fixed payment amount for a specific period of time

• Variable annuity: payment amount varies based on the performance of underlying investments

• Immediate annuity: payments begin immediately after purchase

• Deferred annuity: payments begin at a future date

• Indexed annuity: payment amount is tied to a stock market...read more

Life assurance policies include term, whole life, endowment, and universal life.

• Term life insurance provides coverage for a specific period of time.

• Whole life insurance provides coverage for the entire life of the insured and builds cash value over time.

• Endowment policies pay out a lump sum after a specific period of time or upon the death of the insured.

• Universal life insurance combines a savings component with a deat...read more

Duration is a measure of a bond's sensitivity to changes in interest rates.

• Duration is a calculation that takes into account the bond's yield, coupon rate, and maturity date.

• It is expressed in years and represents the average time it takes to receive the bond's cash flows.

• The higher the duration, the more sensitive the bond is to interest rate changes.

• Duration is used by investors to manage interest rate risk in their

To troubleshoot hive slowness, check for resource contention, optimize queries, and monitor system performance.

• Check for resource contention such as CPU, memory, and disk usage

• Optimize queries by reducing data scanned and avoiding unnecessary joins

• Monitor system performance using tools like Ganglia or Ambari

• Consider partitioning tables to improve query performance

• Use compression to reduce disk I/O and network traffic

ZK and JN play a crucial role in ensuring high availability of Namenode in Hadoop cluster.

• ZK (Zookeeper) is used for leader election and maintaining the state of active and standby Namenodes.

• JN (JournalNode) is responsible for storing the edit logs of Namenode, which are used for recovery in case of failover.

• In case of Namenode failure, ZK helps in electing a new active Namenode from the standby Namenodes, while JN pro...read more