You are using an m1.small EC2 Instance with one 300 GB EBS volume to host a relational database. You
determined that write throughput to the database needs to be increased. Which of the following approaches
can help achieve this? Choose 2 answers.
A.
Use an array of EBS volumes.
B.
Enable Multi-AZ mode.
C.
Place the instance in an Auto Scaling Groups
D.
Add an EBS volume and place into RAID 5.
E.
Increase the size of the EC2 Instance.
F.
Put the database behind an Elastic Load Balancer.
A,E
This is A-E, D is wrong because you need at least 3 disks to do RAID5
A.
Use an array of EBS volumes.
E.
Increase the size of the EC2 Instance.
A,E
D is Wrong since RAID 5 is good for read but bad for writes,
AWS never recommends putting RAID 5 on EBS.
D is wrong. Please, change the answer to A,E
A,E. D does not address high-intensive write I/O
Nice. A & E should be answer. RAID 5 has the poorest write operation performance.