Quiz Answers - Real-time Analytics with Storm and Cassandra (2015)

Real-time Analytics with Storm and Cassandra (2015)

Appendix A. Quiz Answers

Chapter 1

Q.1.

Monitor the ping latency and raise an alert when it crosses a certain threshold to provide a real-time sensing of network.

Monitor events from traffic sensors and plot a graph of choke points at peak hours of day.

Sensing intrusions on borders.

Chapter 2

Q.1.

False

False

True

False

Q.2.

Topology Builder

Parallelism

Nimbus

Chapter 3

Q.1.

True

False

True

True

Q.2.

ack()

declare()

emit()

Chapter 4

Q.1.

True

Flase

False

True

True

Q.2.

Process latency

Execute latency

Zookeeper

Chapter 5

Q.1.

False

False

True

True

Q.2.

Direct exchange

Fan-out

AMQP spout

Chapter 6

Q.1.

False

False

True

False

Q.2.

AP

Low write latency

hector

Chapter 7

Q.1.

False

False

True

True

Q.2.

Snitch

ANY

repair

Chapter 8

Q.1.

False

False

False

False

Q.2.

Nodetool compact

Ring

Ring

Chapter 9

Q.1.

False

False

True

True

Q.2.

Zookeeper

Nimbus

storm-config.xml

Chapter 10

Q.1.

False

True

True

False

Q.2.

DRPC

Trident

filter

Chapter 11

Q.1.

False

False

True

True

Q.2.

LRU

cache-miss

EPRuntime

Timebatch window