IOT - Chapter 1 + 2

1.    True or False?

The purpose of the Cisco IoT System is to create complexity in IoT system implementation and management.

• TRUE

• FALSE

Which action is the result of negative feedback?

• A flashlight is used at night by a camper.

• A strong feedback noise is heard in an auditorium during a rehearsal.

• An unexpected chemical reaction in a chemical plant causes an explosion.

• A thermostat shuts down an air conditioning unit when the temperature reaches the set temperature.

What type of IoT device is the Raspberry Pi?

• router

• sensor

• actuator

• controller

What is an example of a closed-loop control system?

• a manual garage door opener

• a clock

• a traditional dishwasher

• a thermostat

What are two benefits of using a layered model for network protocol development? (Choose two.)

• promoting acquisition of networking products

• reducing competition among different manufacturers

• enhancing capabilities of networking products and services

• providing a common language to describe networking functions

• preventing technology changes in one layer from affecting other layers

What is embedded within a digital object, such as a photograph or email?

Select one:

• sensor

• microcontroller

• feedback

• metadata

What are two factors that impact network security in the IoT? (Choose two.)

• the number of devices

• the number of bits used for encryption

• the nontraditional location of devices

• the lack of Internet standards

• the amount of space between sensors

What are three machine-intelligible message structures that group strings of bits for network transmission? (Choose three.)

• ASCII codes

• frames

• pixels

• packets

• segments

Which level of the Internet of Things reference model describes data storage?

• data abstraction

• edge computing

• data accumulation

• physical devices and controllers

What are two advantages of using fiber optic cables compared with copper cables? (Choose two.)

• They are less expensive.

• They support higher bandwidth.

• They provide connections over longer distances.

• They use electromagnetic signals to transmit data.

• They provide shared media access for a single link.