Timestamp and data synchronization in SCADA systems - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to get the current timestamp in ISO 8601 format.

SCADA systems

current_time = datetime.[1]()

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Atimestamp

Bnow

Ctoday

Dutcnow

Attempts:

3 left

💡 Hint

Common Mistakes

Using local time methods causes inconsistent timestamps.

The utcnow() method returns the current UTC time, which is standard for synchronization.

2fill in blank

medium

Complete the code to convert a timestamp string to a datetime object.

SCADA systems

timestamp_obj = datetime.strptime(timestamp_str, [1])

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A"%Y-%m-%d %H:%M:%S"

B"%d/%m/%Y %H:%M"

C"%m-%d-%Y"

D"%H:%M:%S %d-%m-%Y"

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong format strings causes parsing errors.

The format "%Y-%m-%d %H:%M:%S" matches the common ISO-like timestamp string.

3fill in blank

hard

Fix the error in the synchronization check comparing two timestamps.

SCADA systems

if timestamp1 [1] timestamp2:
    sync_status = "In sync"

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A!=

B==

C>

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using inequality operators causes false sync status.

To confirm synchronization, timestamps must be exactly equal, so use ==.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension filtering timestamps after a cutoff.

SCADA systems

filtered_data = {k: v for k, v in data.items() if v['timestamp'] [1] cutoff_time and v['status'] [2] 'active'}

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A>

B==

C!=

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong operators filters incorrect data.

We want timestamps after the cutoff (>) and status exactly 'active' (==).

5fill in blank

hard

Fill both blanks to create a dictionary with uppercase keys and values filtered by timestamp.

SCADA systems

result = {k{BLANK_2}}: v for k, v in records.items() if v['timestamp'] {{BLANK_2}} reference_time

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A{

B.upper()

C>

D[

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong brackets or missing method calls.

Use curly braces { to start a dict, convert keys to uppercase with .upper(), and filter timestamps greater than reference_time.