GradePack

    • Home
    • Blog
Skip to content
bg
bg
bg
bg

GradePack

Imagine a scenario where Boeing designed a pilot monitoring…

Imagine a scenario where Boeing designed a pilot monitoring system that deploys in response to a failing MCAS system. If an MCAS system is engaged and the pilot is detected to be stressed, MCAS will automatically disengage. In this system, consider a brain mobile interface application where the pilot wears a Neurosky headset that senses brain signals (EEG) at 400 Hz. Each brain data point is a 32-bit floating point number. The brain signal is collected by a central controller in the plane and sent to a server, where complex machine learning algorithms are employed to determine the stress level of the pilot. Additionally, the aircraft is equipped with sensors, such as the AoA, pitch monitoring, and other relevant sensors. The data rate from the AoA is 5 kbps, and the data rate from the other relevant sensors is 300 kbps. Using the data from these sensors, the MCAS disable system attempts to predict MCAS failures. If the system detects that the pilot is stressed and an MCAS failure is predicted, the auto-disable facility should disable MCAS. The auto-disable feature only has 5 seconds to make a decision after collecting 5 seconds worth of data. There are two options for performing all of the related computation: (a) use a GPU server at the control center, or (b) use a fog server that is onboard the aircraft. The GPU server upload speed is 1 Mbps, whereas the fog server upload speed is 5 Mbps. However, the computation speed of the GPU server is 1500 kbps (in other words, it can finish the computation on 1500 kb of data in 1 second), whereas the fog server has a computational speed of 200 kbps. Suppose the failure rate of the GPU server is 0.2. This means that 20% of the time the GPU will send a failure message back to the auto-disable system. When this occurs, the system must transfer all of the information to the GPU server again and redo the computation. The time taken to communicate that a failure has occurred is 500 milliseconds. What is the average total time taken for both communication and computation to be performed in the GPU server, in milliseconds?

Read Details

Imagine a scenario where Boeing designed a pilot monitoring…

Imagine a scenario where Boeing designed a pilot monitoring system that deploys in response to a failing MCAS system. If an MCAS system is engaged and the pilot is detected to be stressed, MCAS will automatically disengage. In this system, consider a brain mobile interface application where the pilot wears a Neurosky headset that senses brain signals (EEG) at 400 Hz. Each brain data point is a 32-bit floating point number. The brain signal is collected by a central controller in the plane and sent to a server, where complex machine learning algorithms are employed to determine the stress level of the pilot. Additionally, the aircraft is equipped with sensors, such as the AoA, pitch monitoring, and other relevant sensors. The data rate from the AoA is 5 kbps, and the data rate from the other relevant sensors is 300 kbps. Using the data from these sensors, the MCAS disable system attempts to predict MCAS failures. If the system detects that the pilot is stressed and an MCAS failure is predicted, the auto-disable facility should disable MCAS. The auto-disable feature only has 5 seconds to make a decision after collecting 5 seconds worth of data. There are two options for performing all of the related computation: (a) use a GPU server at the control center, or (b) use a fog server that is onboard the aircraft. The GPU server upload speed is 1 Mbps, whereas the fog server upload speed is 5 Mbps. However, the computation speed of the GPU server is 1500 kbps (in other words, it can finish the computation on 1500 kb of data in 1 second), whereas the fog server has a computational speed of 200 kbps. What is the communication time for the GPU server in seconds?

Read Details

What is the data provenance problem?

What is the data provenance problem?

Read Details

Consider a movie recommendation system, where based on the m…

Consider a movie recommendation system, where based on the movie you are watching currently, it predicts what movie you will like best. What kind of adaptation is this?

Read Details

Which statements are most accurate regarding presentation at…

Which statements are most accurate regarding presentation attacks? Select all that apply.

Read Details

An adversary tries to alter the data sensed by the phasor me…

An adversary tries to alter the data sensed by the phasor measurement units installed on the power grid network so that the state estimation process estimates incorrect state vectors, which can cause some of the nodes to go down. Given this information, which type of attack is being introduced by the adversary?

Read Details

Which attacks are forms of causative attacks? Select all tha…

Which attacks are forms of causative attacks? Select all that apply.

Read Details

Which statements about the validity of biometrics are true?…

Which statements about the validity of biometrics are true? Select all that apply.

Read Details

Imagine a scenario where Boeing designed a pilot monitoring…

Imagine a scenario where Boeing designed a pilot monitoring system that deploys in response to a failing MCAS system. If an MCAS system is engaged and the pilot is detected to be stressed, MCAS will automatically disengage. In this system, consider a brain mobile interface application where the pilot wears a Neurosky headset that senses brain signals (EEG) at 400 Hz. Each brain data point is a 32-bit floating point number. The brain signal is collected by a central controller in the plane and sent to a server, where complex machine learning algorithms are employed to determine the stress level of the pilot. Additionally, the aircraft is equipped with sensors, such as the AoA, pitch monitoring, and other relevant sensors. The data rate from the AoA is 5 kbps, and the data rate from the other relevant sensors is 300 kbps. Using the data from these sensors, the MCAS disable system attempts to predict MCAS failures. If the system detects that the pilot is stressed and an MCAS failure is predicted, the auto-disable facility should disable MCAS. The auto-disable feature only has 5 seconds to make a decision after collecting 5 seconds worth of data. There are two options for performing all of the related computation: (a) use a GPU server at the control center, or (b) use a fog server that is onboard the aircraft. The GPU server upload speed is 1 Mbps, whereas the fog server upload speed is 5 Mbps. However, the computation speed of the GPU server is 1500 kbps (in other words, it can finish the computation on 1500 kb of data in 1 second), whereas the fog server has a computational speed of 200 kbps. What is the computation time for the fog server in seconds?

Read Details

Imagine a scenario where Boeing designed a pilot monitoring…

Imagine a scenario where Boeing designed a pilot monitoring system that deploys in response to a failing MCAS system. If an MCAS system is engaged and the pilot is detected to be stressed, MCAS will automatically disengage. In this system, consider a brain mobile interface application where the pilot wears a Neurosky headset that senses brain signals (EEG) at 400 Hz. Each brain data point is a 32-bit floating point number. The brain signal is collected by a central controller in the plane and sent to a server, where complex machine learning algorithms are employed to determine the stress level of the pilot. Additionally, the aircraft is equipped with sensors, such as the AoA, pitch monitoring, and other relevant sensors. The data rate from the AoA is 5 kbps, and the data rate from the other relevant sensors is 300 kbps. Using the data from these sensors, the MCAS disable system attempts to predict MCAS failures. If the system detects that the pilot is stressed and an MCAS failure is predicted, the auto-disable facility should disable MCAS. The auto-disable feature only has 5 seconds to make a decision after collecting 5 seconds worth of data. There are two options for performing all of the related computation: (a) use a GPU server at the control center, or (b) use a fog server that is onboard the aircraft. The GPU server upload speed is 1 Mbps, whereas the fog server upload speed is 5 Mbps. However, the computation speed of the GPU server is 1500 kbps (in other words, it can finish the computation on 1500 kb of data in 1 second), whereas the fog server has a computational speed of 200 kbps. What is the computation time for the GPU server in seconds?

Read Details

Posts pagination

Newer posts 1 … 35,264 35,265 35,266 35,267 35,268 … 64,592 Older posts

GradePack

  • Privacy Policy
  • Terms of Service
Top