Infosys Certified AWS Database Specialty
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Join Premium10 Infosys Certified AWS Database Specialty practice questions with answers
Real Lex exam-pattern multiple-choice questions for the Infosys Certified AWS Database Specialty certification. Each question includes the correct answer. The full question bank is available to Premium members.
- Question 1
Amazon DocumentDB cluster execution time of operation is slow. As a database specialist, which of the following can be used to investigate the slow operations?
- ✓DocumentDB profiler Correct
- BAmazon macie
- CAWS X-ray
- DAmazon Inspector
- Question 2
Which of the following database services makes it easy to build and run applications that work with highly connected datasets?
- ✓Amazon AuroraCorrect
- BAmazon Neptune
- CAmazon Redshift
- DAmazon DynamoDB
- Question 3
By default, what is the maximum number DynamoDB tables can an AWS account for a region?
- ✓1000Correct
- B256
- C512
- D300
- Question 4
What is the maximum size of an item in DynamoDB?
- ✓50 KB Correct
- B400 MB
- C40 MB
- D400 KB
- Question 5
A music company wants to sell the concert tickets online through an application which uses DynamoDB database in the backend. The Database admin has observed that there is an increase of 100ms in load time and sales are getting affected. He now wants to configure a managed caching solution to reduce the load time. Which of the following will be a suitable choice? (Choose 2 options)
- ✓Configure Redis as cache for the database to reduce the latencyCorrect
- BConfigure Memcached as cache for the database to reduce the latency
- CConfigure Elasticache for Redis/Memcached as cache for the database to reduce the latency
- DConfigure DynamoDB accelerator (DAX) as cache
- Question 6
A gaming firm wants to have a managed key-value database solution from AWS for storing their user session data. As their users are spread across the globe, they want the data to be written to the database in nearest AWS region with synchronous replication to databases in other regions. Which of the following will be the optimal choice?
- ✓Use Amazon RDS for MySQL with multi-Region read replicasCorrect
- BUse Amazon DynamoDB with global tables configured
- CUse Elasticache for storing the data in the region nearest to the user
- DUse Amazon RDS for PostgreSQL with multi-Region read replicas
- Question 7
An e-commerce company generates exabytes of data. They are looking for a managed data warehouse solution which helps them store data efficiently and run complex analytical queries. Which of the following is the best possible choice?
- ✓Amazon RedShiftCorrect
- BAmazon DynamoDB
- CAmazon Aurora
- DAmazon Elasticache
- Question 8
A leading gaming firm, Gameit.com offers awesome gaming experience through fantasy skill games and casual games across its platforms. The company experienced several growth spurts when the user base is doubled. New CEO of company has recommended migrating to AWS cloud to improve agility and take advantage of cloud native services. The team wanted to ensure preventing fraud and collusion during sports tournaments. The Database specialist in the team has advised that whenever a player login, assign a table in the database to each one of them. The team has finally decided to use a graph database to detect if two players in a game are colluding. Also, the team want to ensure that sensitive data is encrypted before it gets to the database and at rest. Which of the following solutions would you recommend as the best-fit option to meet the given requirement?
- ✓Use Amazon Neptune to make connections between different users and identify patterns that might indicate fraudulent activityCorrect
- BUse Amazon Redshift to gather, monitor, analyze, and act on all the game data
- CUse the RDS fault injection query to simulate the fraudulent activity
- DCreate tools to detect fraud use cases regardless of the type of attack
- Question 9
A video streaming company uses Amazon Aurora as their database for storing their user data and S3 as their object storage. The Aurora DB is currently in unencrypted state. Which of the following steps will help the admin to ensure data protection in these storage solutions? (Choose 3 options)
- ✓Modify the DB cluster to enable encryption of the data at rest using AWS managed keys / Customer managed keysCorrect
- BUse SSL / TSL to encrypt a connection to the Aurora DB cluster
- CUse managed services like Amazon Macie which assists in discovering and securing personal data that is stored in Amazon S3
- DUse KMS to secure the in-transit connections between the application and the Aurora DB cluster
- ETake a snapshot of the DB and encrypt the snapshot using AWS KMS encryption key
- Question 10
A FinTech companu is running web application on an Amazon RDS for MariaDB instance in Multi-AZ deployment setup. They want to achieve regulatory compliance. Currently, RDS DB instance is associated with a DB subnet group with private subnets without an Internet gateway. Howeverr, it is configured with security groups to allow traffic in and out of application servers only.
The Master key used to encrypt database at rest is managed using AWS KMS. How can this setup have new and enhanced security?
- ✓Set up NACLs that allow the entire EC2 subnet to access DB instance Correct
- BTurn off Public accessibility of RDS DB instance
- CCreate a new rule in security group that denies port 22 traffic to RDS DB instance
- DEnable SSL in RDS DB instance and encrypt data in transit.
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