Why caching improves performance in Azure - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a cache in Azure using the correct service name.

Azure

cache = azure.[1]Client()

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

ABlobStorage

BVirtualMachine

CSQLDatabase

DRedisCache

Attempts:

3 left

💡 Hint

Common Mistakes

Using storage or database services instead of cache.

Azure Redis Cache is the correct service to use for caching to improve performance.

2fill in blank

medium

Complete the code to set a cache expiration time in seconds.

Azure

cache.set('key', 'value', expiration=[1])

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

A3600

B0

C-1

DNone

Attempts:

3 left

💡 Hint

Common Mistakes

Setting expiration to zero or negative disables caching.

Setting expiration to 3600 seconds means the cache entry lasts for one hour, improving performance by reducing repeated data fetches.

3fill in blank

hard

Fix the error in the code to retrieve a cached value safely.

Azure

value = cache.get('[1]') or 'default'

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

Avalue_key

Bmissing_key

Ckey

Dcache_key

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different or incorrect key name.

The key used to store the value must match the key used to retrieve it. 'key' is the correct consistent key.

4fill in blank

hard

Fill both blanks to configure cache connection with correct host and port.

Azure

cache = RedisCache(host='[1]', port=[2])

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

Amycache.redis.cache.windows.net

B6379

Clocalhost

D8080

Attempts:

3 left

💡 Hint

Common Mistakes

Using localhost or wrong port numbers.

The host must be the Azure Redis Cache endpoint, and the port is typically 6379 for Redis.

5fill in blank

hard

Fill all three blanks to implement cache get, set, and delete operations correctly.

Azure

cache.[1]('key', 'value')
result = cache.[2]('key')
cache.[3]('key')

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

Aset

Bget

Cdelete

Dupdate

Attempts:

3 left

💡 Hint

Common Mistakes

Using update instead of delete or wrong method names.

Use set to store, get to retrieve, and delete to remove cache entries.