RBC Technical Skills Assessment 4

Question 1

A project manager notices tasks are consistently starting late because predecessors finish late. The sequence of tasks that determines the minimum project duration is called the:

Accepted Answer

Critical path

Answer

The critical path is the longest sequence of dependent tasks; any delay on it directly delays the project end date.

Question 2

Which SQL JOIN type returns all rows from the left table and matching rows from the right table, with NULLs for non-matching right-table rows?

Accepted Answer

LEFT JOIN

Answer

A LEFT JOIN returns all records from the left table and matched records from the right table; unmatched right-side fields are NULL.

Question 3

In Python, what does the len() function return when called on the string 'RBC'?

Accepted Answer

3

Answer

len('RBC') returns 3 because the string contains three characters: R, B, and C.

Question 4

A financial analyst exports data to CSV. Which statement about CSV files is correct?

Accepted Answer

CSV files store data as plain text with delimiters

Answer

CSV (Comma-Separated Values) files store tabular data as plain text, with fields separated by commas or other delimiters.

Question 5

Which type of software testing verifies that individual units or components of code work correctly in isolation?

Accepted Answer

Unit testing

Answer

Unit testing validates the smallest testable parts of an application independently from other components.

RBC - Online Assessment Practice Test

RBC - Online Assessment Practice Test

RBC Technical Skills Assessment 4