MSET and MGET for bulk operations in Redis - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set multiple keys and values at once using MSET.

Redis

MSET [1]

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

A"key1", "value1", "key2", "value2"

B["key1", "value1", "key2", "value2"]

C{"key1": "value1", "key2": "value2"}

D"key1:value1,key2:value2"

Attempts:

3 left

💡 Hint

Common Mistakes

Using an array or JSON object instead of separate key-value strings.

The MSET command expects a list of keys and values as separate arguments, not as arrays or JSON objects.

2fill in blank

medium

Complete the code to get multiple keys' values at once using MGET.

Redis

MGET [1]

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

A"key1 key2 key3"

B"key1", "key2", "key3"

C["key1", "key2", "key3"]

D{"key1", "key2", "key3"}

Attempts:

3 left

💡 Hint

Common Mistakes

Passing keys as a single string or array instead of separate strings.

The MGET command takes multiple keys as separate string arguments, not as a single string or array.

3fill in blank

hard

Fix the error in the MSET command to correctly set multiple keys and values.

Redis

MSET [1]

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

A{"key1": "value1", "key2": "value2"}

B["key1", "value1", "key2", "value2"]

C"key1:value1,key2:value2"

D"key1", "value1", "key2", "value2"

Attempts:

3 left

💡 Hint

Common Mistakes

Using array or JSON object syntax instead of separate strings.

The correct syntax for MSET is a flat list of keys and values as separate strings.

4fill in blank

hard

Fill both blanks to set and then get multiple keys using MSET and MGET.

Redis

MSET [1]
values = MGET [2]

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

A"keyA", "valA", "keyB", "valB"

B"keyA", "keyB"

C["keyA", "keyB"]

D"valA", "valB"

Attempts:

3 left

💡 Hint

Common Mistakes

Using arrays or JSON objects for keys or values.

Use MSET with keys and values as separate strings, and MGET with keys as separate strings.

5fill in blank

hard

Fill all three blanks to set keys with MSET, get them with MGET, and print the results.

Redis

MSET [1]
values = MGET [2]
print([3])

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

A"user1", "Alice", "user2", "Bob"

B"user1", "user2"

Cvalues

Dprint(values)

Attempts:

3 left

💡 Hint

Common Mistakes

Trying to print the command instead of the variable holding results.

Set keys and values with MSET, get keys with MGET, and print the returned list stored in values.