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Leno4ka [110]
4 years ago
9

You manage a Ruby on Rails application that lives on a cluster of EC2 instances. Your website occasionally experiences brief, st

rong, and entirely unpredictable spikes in traffic that overwhelm your EC2 instances' resources and freeze the application. As a result, you're losing recently submitted requests from end users. You use Auto Scaling to deploy additional resources to handle the load during spikes, but the new instances don't spin-up fast enough to prevent the existing application servers from freezing. Which of the following will provide the most cost-effective solution in preventing the loss of recently submitted requests?
A. Keep a large EC2 instance on standby.
B. Increase the size of your existing EC2 instances.
C. Ask AWS support to pre-warm the Elastic Load Balancer.
D. Use Amazon SQS to decouple the application components and keep the requests in queue until the extra Auto-Scaling instances are available."
Computers and Technology
1 answer:
KIM [24]4 years ago
5 0

Answer:

Option D Use Amazon SQS to decouple the application components and keep the requests in queue until the extra Auto-Scaling instances are available.

Explanation:

Amazon SQS is a service that user to decouple the application components and keep the request in queue. This is useful to ensure the distribution of message can be done more reliably and without losing the message. Amazon SQS increase the system fault tolerance. Multiple duplicated copies of the message will be stored across several availability zones to ensure the message are always available whenever it is needed.

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Determine if the software or service is authorized

Explanation:

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3 0
2 years ago
Universal Windows Platform is designed for which Windows 10 version?
Naddika [18.5K]

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6 0
4 years ago
Read the code below.
Rasek [7]

Answer:

theres an error on line one used python idle

Explanation:

8 0
4 years ago
En el disco duro de mi PC (que es de 500 Gigabytes de espacio útil total), tengo ocupado un 50% de ese espacio. ¿Cuantos juegos
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Answer:si

Explanation:

5 0
3 years ago
Java Array question.
kodGreya [7K]

Answer:

3) 3 44 44

Explanation:

Given data

int [] val = { 3, 10, 44 };

The total number of parameters of given array are 3, so total length of array is also 3.

The indexing of array starts with '0', Therefore the <u>indexes</u> of array with length zero are: {0,1,2}

The value of array at index 0 is = 3

similarly

value at index 1 = 10

value at index 2 = 44

Here, Int i = 1 is storing the value '1' in integer variable i.

In addition to that, any value of index 'i' of an array is selected using array[i].

Therefore,

val[i] is selecting the value of array located at index '1' because i = 1.

val[i] = val[1] = 10

val[i+1] is selecting the value of array located at index 'i+1' that is (1+1) =2

val[i+1] = val[2] = 44

Finally,

val[i] = val[i + 1]; is copying the value placed at index 2 (44) to value placed at index 1 (10). Hence, the output would be {3 44 44}. So 3rd option is correct.

 

3 0
3 years ago
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