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What is an example of cloud computing?

•  an architectural style of the World Wide Web

•  a network infrastructure that spans a large geographic area

•  a service that offers on-demand access to shared resources

•  a continuous interaction between people, processes, data, and thíng

What is used to uniquely identify devices connected to the Internet?

• URL

•  device name

•  IP address

•  gateway address

What is the formula used to measure the force that drives current?

•  I = V x R

•  R = I x V

•  P = I x R

•  V = I x R

What are two examples of fixed costs in business finance? (Choose two.)

•  utilities

•  advertising

•  equipment insurance

•  materials

•  rent

What function is performed by an actuator?

•  measuring a physical property by detecting information from the physical world

•  receiving a signal from a device and performing a set action

•  collecting data and then sending instructions for actions to be taken, or sending information for further analysis

•  improving a physical environment by measuring changes

What are two functions supported by a data link layer protocol? (Choose two.)

•  determining the best path to forward packets

•  controlling how data is placed and received on the media

•  providing an addressing scheme for reaching destination networks

•  accepting Layer 3 packets and packaging them into frames

What is the key difference between an open-loop control system and a closed-loop control system?

•  A closed-loop system uses an IP-enabled controller whereas an open-loop system does not.

•  A closed-loop system uses a negative feedback mechanism whereas an open-loop system uses a positive feedback system.

•  A closed-loop system uses a feedback mechanism whereas an open-loop system does not.

•  A closed-loop system uses a controller whereas an open-loop system does not.

What is used by a RESTful system to represent resources to external systems?

•  domain names

•  IP addresses

•  Uniform Resource

  Identifiers

•  Ethernet addresses

What are three examples of computer programs? (Choose three.)

•  operating system

•  memory

•  device driver

•  storage

•  firmware

In the Linux shell, which character is used between two commands to instruct the shell to combine and execute these two commands in sequence?

• %

• #

• |

• $