Resource monitors for cost control in Snowflake - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a resource monitor named 'monthly_monitor'.

Snowflake

CREATE RESOURCE MONITOR monthly_monitor WITH (CREDIT_QUOTA = [1]);

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

A10

B1000

C100

D5000

Attempts:

3 left

💡 Hint

Common Mistakes

Using too low a quota causing early suspension

Using too high a quota defeating cost control

The credit quota sets the maximum credits allowed. 1000 is a common monthly limit.

2fill in blank

medium

Complete the code to set the trigger for the resource monitor to suspend warehouses at 90% usage.

Snowflake

ALTER RESOURCE MONITOR monthly_monitor SET TRIGGERS ON [1]% DO SUSPEND;

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

A90

B50

C100

D75

Attempts:

3 left

💡 Hint

Common Mistakes

Setting trigger too low causing premature suspension

Setting trigger at 100% which may be too late

Setting the trigger at 90% means warehouses suspend when 90% of the quota is used.

3fill in blank

hard

Fix the error in the code to correctly create a resource monitor with a credit quota of 2000.

Snowflake

CREATE RESOURCE MONITOR cost_control WITH ([1] = 2000);

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

ACREDIT_CAP

BCREDIT_LIMIT

CCREDIT_QUOTA

DCREDIT_USAGE

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect keywords like CREDIT_LIMIT or CREDIT_CAP

Omitting the quota setting

The correct keyword to set the credit limit is CREDIT_QUOTA.

4fill in blank

hard

Fill both blanks to create a resource monitor that notifies at 80% and suspends at 95%.

Snowflake

CREATE RESOURCE MONITOR alert_suspend WITH (CREDIT_QUOTA = 1500) TRIGGERS ON [1]% DO NOTIFY, [2]% DO SUSPEND;

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

A80

B90

C95

D100

Attempts:

3 left

💡 Hint

Common Mistakes

Reversing notify and suspend percentages

Setting both triggers to the same percentage

80% triggers notification, 95% triggers suspension to control costs effectively.

5fill in blank

hard

Fill all three blanks to create a resource monitor with a 3000 credit quota, notify at 70%, and suspend at 85%.

Snowflake

CREATE RESOURCE MONITOR [1] WITH (CREDIT_QUOTA = [2]) TRIGGERS ON [3]% DO NOTIFY, 85% DO SUSPEND;

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

Acost_guard

B3000

C70

D1500

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong monitor name

Setting incorrect quota or notify percentage

The monitor is named 'cost_guard', quota is 3000 credits, and notify trigger is set at 70%.

Practice

1. What is the main purpose of a resource monitor in Snowflake?

easy

A. To track and control cloud credit usage by setting limits

B. To create new virtual warehouses automatically

C. To backup data to external storage

D. To manage user access permissions

Solution

1. Step 1: Understand resource monitor function

   Resource monitors are designed to track cloud credit consumption and enforce limits to control costs.

2. Step 2: Identify the correct purpose

   Among the options, only tracking and controlling credit usage matches the resource monitor's role.

3. Final Answer:

   To track and control cloud credit usage by setting limits -> Option A

4. Quick Check:

   Resource monitor = cost control [OK]

Hint: Resource monitors limit cloud credits to control costs [OK]

Common Mistakes:

• Confusing resource monitors with user access controls
• Thinking resource monitors create warehouses
• Assuming resource monitors handle data backups

2. Which Snowflake SQL command correctly creates a resource monitor with a 1000 credit monthly limit?

easy

A. CREATE RESOURCE MONITOR my_monitor WITH CREDIT_QUOTA = 1000, TRIGGERS ON 90 PERCENT DO NOTIFY

B. CREATE RESOURCE MONITOR my_monitor SET CREDIT_LIMIT = 1000

C. CREATE RESOURCE MONITOR my_monitor WITH CREDIT_QUOTA = 1000 TRIGGERS ON 90 PERCENT DO NOTIFY

D. CREATE RESOURCE MONITOR my_monitor CREDIT_LIMIT 1000

Solution

1. Step 1: Review correct syntax for resource monitor creation

   The correct syntax uses CREATE RESOURCE MONITOR with WITH CREDIT_QUOTA and TRIGGERS clauses.

2. Step 2: Match syntax with options

   CREATE RESOURCE MONITOR my_monitor WITH CREDIT_QUOTA = 1000 TRIGGERS ON 90 PERCENT DO NOTIFY matches the correct syntax including triggers and notification on 90% usage.

3. Final Answer:

   CREATE RESOURCE MONITOR my_monitor WITH CREDIT_QUOTA = 1000 TRIGGERS ON 90 PERCENT DO NOTIFY -> Option C

4. Quick Check:

   Correct syntax uses WITH CREDIT_QUOTA and TRIGGERS [OK]

Hint: Use WITH CREDIT_QUOTA and TRIGGERS to create monitors [OK]

Common Mistakes:

• Using SET instead of WITH for quota
• Omitting TRIGGERS clause
• Incorrect keyword CREDIT_LIMIT instead of CREDIT_QUOTA

3. Given this resource monitor configuration:

CREATE RESOURCE MONITOR rm1 WITH CREDIT_QUOTA = 500 TRIGGERS ON 80 PERCENT DO NOTIFY ON 100 PERCENT DO SUSPEND;

What happens when the credit usage reaches 100%?

medium

A. The resource monitor suspends the warehouses linked to it

B. Snowflake sends a notification but continues running

C. The credit quota automatically increases

D. Nothing happens automatically

Solution

1. Step 1: Analyze the triggers in the resource monitor

   The monitor triggers a notification at 80% and suspends resources at 100% usage.

2. Step 2: Understand the effect of the 100% trigger

   At 100%, the monitor suspends warehouses linked to it to prevent further credit use.

3. Final Answer:

   The resource monitor suspends the warehouses linked to it -> Option A

4. Quick Check:

   100% trigger with SUSPEND = suspend warehouses [OK]

Hint: 100% trigger with SUSPEND stops warehouses automatically [OK]

Common Mistakes:

• Thinking notification happens at 100% instead of suspend
• Assuming quota increases automatically
• Believing nothing happens at limit

4. You wrote this command to create a resource monitor:

CREATE RESOURCE MONITOR monitor1 WITH CREDIT_QUOTA = 2000 TRIGGERS ON 90 PERCENT DO NOTIFY ON 110 PERCENT DO SUSPEND;

What is wrong with this command?

medium

A. CREDIT_QUOTA must be less than 1000

B. The trigger percentage cannot exceed 100%

C. DO NOTIFY is not a valid action

D. Resource monitors cannot suspend warehouses

Solution

1. Step 1: Check trigger percentage limits

   Trigger percentages must be between 0 and 100; 110% is invalid.

2. Step 2: Validate other parts of the command

   DO NOTIFY is valid, CREDIT_QUOTA can be any positive number, and suspension is allowed.

3. Final Answer:

   The trigger percentage cannot exceed 100% -> Option B

4. Quick Check:

   Trigger percent ≤ 100% [OK]

Hint: Trigger percentages must be 0-100% only [OK]

Common Mistakes:

• Setting trigger above 100%
• Confusing DO NOTIFY syntax
• Thinking suspension is disallowed

5. You want to prevent unexpected high costs by automatically suspending warehouses when 95% of your monthly credit quota is used, and notify at 80%. Which resource monitor configuration achieves this?

hard

A. CREATE RESOURCE MONITOR cost_control WITH CREDIT_QUOTA = 1500 TRIGGERS ON 95 PERCENT DO NOTIFY ON 80 PERCENT DO SUSPEND;

B. CREATE RESOURCE MONITOR cost_control WITH CREDIT_QUOTA = 1500 TRIGGERS ON 100 PERCENT DO NOTIFY ON 95 PERCENT DO SUSPEND;

C. CREATE RESOURCE MONITOR cost_control WITH CREDIT_QUOTA = 1500 TRIGGERS ON 80 PERCENT DO SUSPEND ON 95 PERCENT DO NOTIFY;

D. CREATE RESOURCE MONITOR cost_control WITH CREDIT_QUOTA = 1500 TRIGGERS ON 80 PERCENT DO NOTIFY ON 95 PERCENT DO SUSPEND;

Solution

1. Step 1: Identify notification and suspension percentages

   Notification should occur at 80%, suspension at 95% usage.

2. Step 2: Match triggers to correct actions and order

   CREATE RESOURCE MONITOR cost_control WITH CREDIT_QUOTA = 1500 TRIGGERS ON 80 PERCENT DO NOTIFY ON 95 PERCENT DO SUSPEND; correctly sets 80% for notification and 95% for suspension.

3. Step 3: Verify other options

   The other options swap actions or percentages incorrectly or notify at 100% instead of 80%.

4. Final Answer:

   CREATE RESOURCE MONITOR cost_control WITH CREDIT_QUOTA = 1500 TRIGGERS ON 80 PERCENT DO NOTIFY ON 95 PERCENT DO SUSPEND; -> Option D

5. Quick Check:

   Notify 80%, suspend 95% = CREATE RESOURCE MONITOR cost_control WITH CREDIT_QUOTA = 1500 TRIGGERS ON 80 PERCENT DO NOTIFY ON 95 PERCENT DO SUSPEND; [OK]

Hint: Notify lower %, suspend higher % to control costs [OK]

Common Mistakes:

• Swapping notify and suspend percentages
• Setting notify higher than suspend
• Using 100% notify instead of 80%