Data Engineering Zoomcamp 2026

Homework 2: Workflow Orchestration Statistics

Distribution of scores and reported study time for this homework.

Submissions

1017

Median total score

6

Average total score

6

Score distribution

All values are points.

Questions score

Min
-
Median
6.0
Max
6
Q1
5.0
Avg
5.2
Q3
6.0

Learning in public score

Min
-
Median
0.0
Max
7
Q1
0.0
Avg
0.5
Q3
1.0

Total score

Min
-
Median
6.0
Max
14
Q1
5.0
Avg
5.8
Q3
6.0

Time distribution

All values are hours reported by students.

Lectures

Min
0.0
Median
5.0
Max
84.0
Q1
3.5
Avg
8.4
Q3
9.0

Homework

Min
0.5
Median
3.0
Max
84.0
Q1
2.0
Avg
4.9
Q3
5.0

Question breakdown

Correctness and answer distribution per question.

1. Within the execution for Yellow Taxi data for the year 2020 and month 12: what is the uncompressed file size (i.e. the output file yellow_tripdata_2020-12.csv of the extract task)?

598 / 1021 correct (58.6%)

1 128.3 MiB 600 (58.8%)
2 134.5 MiB 354 (34.7%)
3 364.7 MiB 48 (4.7%)
4 692.6 MiB 9 (0.9%)

2. What is the rendered value of the variable file when the inputs taxi is set to green, year is set to 2020, and month is set to 04 during execution?

958 / 1021 correct (93.8%)

1 {{inputs.taxi}}_tripdata_{{inputs.year}}-{{inputs.month}}.csv 31 (3.0%)
2 green_tripdata_2020-04.csv 962 (94.2%)
3 green_tripdata_04_2020.csv 19 (1.9%)
4 green_tripdata_2020.csv 3 (0.3%)

3. How many rows are there for the Yellow Taxi data for all CSV files in the year 2020?

937 / 1021 correct (91.8%)

1 13,537.299 18 (1.8%)
2 24,648,499 941 (92.2%)
3 18,324,219 29 (2.8%)
4 29,430,127 17 (1.7%)

4. How many rows are there for the Green Taxi data for all CSV files in the year 2020?

935 / 1021 correct (91.6%)

1 5,327,301 31 (3.0%)
2 936,199 13 (1.3%)
3 1,734,051 939 (92.0%)
4 1,342,034 17 (1.7%)

5. How many rows are there for the Yellow Taxi data for the March 2021 CSV file?

925 / 1021 correct (90.6%)

1 1,428,092 41 (4.0%)
2 706,911 16 (1.6%)
3 1,925,152 929 (91.0%)
4 2,561,031 14 (1.4%)

6. How would you configure the timezone to New York in a Schedule trigger?

941 / 1021 correct (92.2%)

1 Add a timezone property set to EST in the Schedule trigger configuration 21 (2.1%)
2 Add a timezone property set to America/New_York in the Schedule trigger configuration 944 (92.5%)
3 Add a timezone property set to UTC-5 in the Schedule trigger configuration 26 (2.5%)
4 Add a location property set to New_York in the Schedule trigger configuration 12 (1.2%)

Calculated: 6 February 2026, 14:58