OBJECT ENCODING for internal encoding in Redis - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check the internal encoding of a Redis key.

Redis

OBJECT ENCODING [1]

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

AGET

Bmykey

CTYPE

DENCODING

Attempts:

3 left

💡 Hint

Common Mistakes

Using the keyword 'ENCODING' after 'OBJECT ENCODING' instead of the key name.

Using 'GET' or 'TYPE' which are different Redis commands.

The OBJECT ENCODING command requires the key name after it to check its internal encoding. So the blank should be the key name, which is mykey.

2fill in blank

medium

Complete the command to get the internal encoding of the key named 'user:1000'.

Redis

OBJECT ENCODING [1]

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

Auser:1000

BENCODING

CTYPE

DGET

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'ENCODING' or 'TYPE' instead of the key name.

Confusing this with other Redis commands like GET.

The OBJECT ENCODING command requires the key name as the argument. Here, the key is user:1000. So the blank should be filled with the key name to get its encoding.

3fill in blank

hard

Fix the error in the command to get the encoding of the key 'session123'.

Redis

OBJECT [1] session123

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

ATYPE

BGET

CENCODING

DSIZE

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'GET' or 'TYPE' which are different commands.

Using 'SIZE' which is not a valid OBJECT subcommand.

The correct syntax to get the internal encoding of a key is OBJECT ENCODING keyname. So the blank should be filled with ENCODING.

4fill in blank

hard

Fill both blanks to complete the command that shows the encoding of the key 'cache:data'.

Redis

[1] [2] cache:data

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

AOBJECT

BENCODING

CGET

DTYPE

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the order of 'OBJECT' and 'ENCODING'.

Using 'GET' or 'TYPE' instead of 'ENCODING'.

The full command to check the internal encoding of a key is OBJECT ENCODING keyname. So the first blank is OBJECT and the second blank is ENCODING.

5fill in blank

hard

Fill all three blanks to create a command that checks the encoding of the key 'temp:42' and returns its type.

Redis

[1] [2] temp:42 && [3] temp:42

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

AOBJECT

BENCODING

CTYPE

DGET

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'GET' instead of 'TYPE' for the data type.

Mixing the order of commands.

This command combines two Redis commands: OBJECT ENCODING temp:42 to get the encoding, and TYPE temp:42 to get the data type. So the blanks are OBJECT, ENCODING, and TYPE.