Log file analysis in SEO Fundamentals - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to identify the type of log entry.

SEO Fundamentals

if '404' in log_entry: log_type = '[1]'

Drag options to blanks, or click blank then click option'

AError

BSuccess

CInfo

DWarning

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'Success' because 404 is a number.

Confusing 'Info' with error codes.

The code checks if the log entry contains '404', which indicates an error (page not found).

2fill in blank

medium

Complete the code to extract the IP address from a log line.

SEO Fundamentals

ip_address = log_line.split(' ')[[1]]

Drag options to blanks, or click blank then click option'

A0

B1

C2

D-1

Attempts:

3 left

💡 Hint

Common Mistakes

Using index 1 or 2 which may not be the IP.

Using -1 which is the last element, not the IP.

The IP address is usually the first part of a log line, so index 0 after splitting by space.

3fill in blank

hard

Fix the error in the code to count how many times a specific URL appears in the log.

SEO Fundamentals

count = sum(1 for line in log if '[1]' in line)

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AuRl

BURL

CUrl

Durl

Attempts:

3 left

💡 Hint

Common Mistakes

Using uppercase or mixed case variable names.

Using a string literal instead of a variable.

The variable holding the URL to search is named 'url' in lowercase, so it must match exactly.

4fill in blank

hard

Fill both blanks to create a dictionary of URLs and their visit counts from the log.

SEO Fundamentals

url_counts = {line.split(' ')[[1]]: url_counts.get(line.split(' ')[[2]], 0) + 1 for line in log}

Drag options to blanks, or click blank then click option'

A6

B5

C7

D4

Attempts:

3 left

💡 Hint

Common Mistakes

Using different indices for key and get causing wrong counts.

Using incorrect indices that don't point to the URL.

The URL is typically the 7th element (index 6) in a common log format, so both blanks use 6 to extract the URL.

5fill in blank

hard

Fill all three blanks to filter log entries by status code and create a summary dictionary.

SEO Fundamentals

summary = {line.split(' ')[[1]]: int(line.split(' ')[[2]]) for line in log if line.split(' ')[[3]] == '200'}

Drag options to blanks, or click blank then click option'

A6

B8

C9

D7

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong indices for URL or status code.

Filtering by wrong status code index.

The URL is at index 6, the status code at index 8. We filter lines where the status code (index 8) equals '200'.