RDB configuration (save intervals) in Redis - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set Redis to save the DB every 900 seconds if at least 1 key changed.

Redis

save [1] 1

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

A900

B300

C60

D1800

Attempts:

3 left

💡 Hint

Common Mistakes

Using the number of keys changed as the first number instead of the second.

Confusing seconds with minutes.

The save directive uses seconds and number of changes. Here, 900 seconds means 15 minutes.

2fill in blank

medium

Complete the code to save the DB every 300 seconds if at least 10 keys changed.

Redis

save [1] 10

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

A900

B600

C60

D300

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the two numbers.

Using 10 as the time interval.

The first number is the time in seconds, here 300 seconds means 5 minutes.

3fill in blank

hard

Fix the error in the save configuration to save every 60 seconds if 100 keys changed.

Redis

save [1] 100

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

A10

B60

C100

D600

Attempts:

3 left

💡 Hint

Common Mistakes

Using the number of keys changed as the first number.

Using 100 as the time interval.

The first number must be the time in seconds, so 60 means 1 minute.

4fill in blank

hard

Fill both blanks to save every 1800 seconds if at least 5 keys changed.

Redis

save [1] [2]

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

A1800

B5

C10

D900

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the two numbers.

Using 10 instead of 5 for keys changed.

The first number is the time in seconds (1800 = 30 minutes), the second is the minimum keys changed (5).

5fill in blank

hard

Fill all three blanks to configure Redis to save every 900 seconds if 1 key changed, every 300 seconds if 10 keys changed, and every 60 seconds if 100 keys changed.

Redis

save [1] 1
save [2] 10
save [3] 100

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

A60

B300

C900

D120

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up the time intervals.

Using 120 seconds which is not part of the requirement.

The save intervals are 900 seconds for 1 key, 300 seconds for 10 keys, and 60 seconds for 100 keys.