mạng di động final

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 things

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

• encoding and decoding messages

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?

• %

• #

• |

• $