Mission upload and execution in Drone Programming - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

What is the output of this mission upload status code?

Consider this code snippet that uploads a mission to a drone and prints the status. What will it print?

Drone Programming

mission = ['takeoff', 'fly_to:10,20,30', 'land']
status = upload_mission(mission)
print(status)

A "Mission empty"

B "Upload failed: connection lost"

C "Upload successful"

D "Error: invalid command"

💡 Hint

Assume the upload_mission function returns "Upload successful" if the mission list is valid and non-empty.

The mission list contains valid commands, so upload_mission returns "Upload successful".

❓ Predict Output

intermediate

What does this mission execution code print?

This code executes a mission and prints the result. What is printed?

Drone Programming

mission = ['takeoff', 'fly_to:5,5,5', 'hover:10', 'land']
result = execute_mission(mission)
print(result)

A "Mission completed successfully"

B "Mission aborted: low battery"

C "Error: unknown command hover"

D "Mission paused"

💡 Hint

The execute_mission function completes the mission if all commands are valid.

All commands are valid and the drone completes the mission, so the output is "Mission completed successfully".

❓ Predict Output

advanced

What error does this mission upload code raise?

What error will this code raise when trying to upload the mission?

Drone Programming

mission = ['takeoff', 'fly_to:10,20', 'land']
status = upload_mission(mission)
print(status)

A No error, prints "Upload successful"

B ValueError: Invalid coordinates format

C KeyError: 'fly_to' command missing parameters

D TypeError: mission must be a list

💡 Hint

The fly_to command expects three coordinates separated by commas.

The command 'fly_to:10,20' has only two coordinates instead of three, causing a ValueError.

🧠 Conceptual

advanced

Which option will cause the mission execution to pause?

Given the mission commands below, which option will cause the drone to pause execution?

Drone Programming

mission = ['takeoff', 'fly_to:0,0,10', 'pause', 'land']

A The 'pause' command causes a runtime error stopping execution

B The 'pause' command is ignored and mission continues without pause

C The 'pause' command causes the drone to land immediately

D The 'pause' command is recognized and causes the drone to pause

💡 Hint

Some drones support a 'pause' command to temporarily stop mission execution.

The 'pause' command is designed to pause the mission, so option D is correct.

🔧 Debug

expert

Why does this mission execution code raise a runtime error?

Analyze the code below. Why does it raise a runtime error during mission execution?

Drone Programming

mission = ['takeoff', 'fly_to:10,20,30', 'hover:-5', 'land']
execute_mission(mission)

A Negative hover time is invalid and causes a runtime error

B The 'fly_to' command has invalid coordinates causing the error

C The mission list is empty causing an error

D The 'land' command is missing parameters causing the error

💡 Hint

Hover time must be a positive number.

The 'hover:-5' command tries to hover for negative time, which is invalid and causes a runtime error.