Practice Test
AWS DataSync can be used to migrate active datasets to AWS.
- A) True
- B) False
Answer: A) True
Explanation: AWS DataSync is a data transfer service that can be used to migrate active datasets to the AWS cloud for analysis and processing. It is used for online and automated data transfers.
Which of the following are common use cases for AWS Storage Gateway?
- A) Hybrid cloud storage
- B) Disaster recovery
- C) Database migrations
- D) File sync and share
Answer: A) Hybrid cloud storage, B) Disaster recovery
Explanation: AWS Storage Gateway is often used for hybrid cloud storage, to bridge on-premises environments with the cloud. It is also used for disaster recovery as it provides low-cost storage for backup and archiving.
It’s not possible to transfer data from on-premises to AWS using AWS DataSync.
- A) True
- B) False
Answer: B) False
Explanation: One of the key features of AWS DataSync is its capability to easily and securely transfer data from on-premises to AWS.
AWS DataSync does not schedule data transfers.
- A) True
- B) False
Answer: B) False
Explanation: AWS DataSync not only transfers data but also schedules those transfers according to the user’s convenience or real-time needs.
AWS Storage Gateway supports which types of storage interfaces?
- A) File (NFS)
- B) Volume (iSCSI)
- C) Tape (VTL)
- D) None of the above
Answer: A) File (NFS), B) Volume (iSCSI), C) Tape (VTL)
Explanation: AWS Storage Gateway supports all three types of storage interfaces: File (NFS), Volume (iSCSI), and Tape (VTL).
AWS DataSync uses a pull model for data transfer.
- A) True
- B) False
Answer: A) True
Explanation: AWS DataSync uses a pull model where an agent installed in your on-premises environment connects to AWS and pulls the data to be transferred.
Using AWS DataSync, you can only transfer data to S
- A) True
- B) False
Answer: B) False
Explanation: While AWS DataSync can be used to transfer data to S3, it can also transfer data to EFS and FSx for Windows.
AWS Storage Gateway can be used to move large amounts of data from your on-premises environments to the AWS Cloud for in-cloud workloads.
- A) True
- B) False
Answer: A) True
Explanation: AWS Storage Gateway is ideal for moving large datasets to AWS for working with the datasets in the cloud, be it for analysis, machine learning, or other services.
Can you use AWS DataSync to move databases?
- A) Yes
- B) No
Answer: B) No
Explanation: AWS DataSync is not designed for moving databases. Instead, you should use services like AWS Database Migration Service.
AWS Storage Gateway only supports one-way data transfer.
- A) True
- B) False
Answer: B) False
Explanation: AWS Storage Gateway supports bi-directional data transfer, allowing you to move data into and out of AWS seamlessly.
AWS DataSync only supports one-time data migration.
- A) True
- B) False
Answer: B) False
Explanation: AWS DataSync can support both one-time data migrations and ongoing data transfer needs.
AWS Storage Gateway supports moving data from AWS back on-premises.
- A) True
- B) False
Answer: A) True
Explanation: AWS Storage Gateway has a hybrid architecture and supports moving data back on-premises to AWS. This is especially useful in disaster recovery and data backup situations.
AWS DataSync ensures data consistency and integrity.
- A) True
- B) False
Answer: A) True
Explanation: AWS DataSync uses checksums and verification to ensure the transferred data’s integrity and consistency.
AWS Storage Gateway is a physical appliance and doesn’t support virtual deployment.
- A) True
- B) False
Answer: B) False
Explanation: AWS Storage Gateway is a software appliance and can be deployed on-premises as a virtual machine or as a hardware appliance.
AWS DataSync can help in reducing data transfer costs.
- A) True
- B) False
Answer: A) True
Explanation: AWS DataSync can help reduce data transfer cost by transferring changed files only, which decreases the volume of data sent over the network.
Interview Questions
What is the primary function of AWS DataSync?
AWS DataSync is a service that helps users to move large amounts of data online between on-premises storage systems and AWS Storage services, or between AWS Storage services.
Can you use AWS DataSync to transfer data to and from SMB file shares?
Yes, AWS DataSync supports SMB file shares, NFS file shares, and Amazon S3, Amazon EFS, and Amazon FSx for Windows File Server.
What is the main advantage of using AWS Storage Gateway?
AWS Storage Gateway allows hybrid cloud storage, allowing your on-premises applications to use AWS cloud storage with low latency access to data.
In what forms is the AWS Storage Gateway available?
AWS Storage Gateway is available in three forms: File gateway, Volume gateway, and Tape gateway each serving unique purposes and use cases.
What is AWS DataSync’s data transfer speed?
AWS DataSync can transfer data at speeds up to 10 times faster than open-source tools.
How can organizations benefit from AWS Storage Gateway while moving their backups to AWS?
AWS Storage Gateway’s Tape Gateway offers a cost-effective, scalable, and durable solution to move tape-based backups to AWS without changing backup workflows. It also allows archiving of backup data for long-term retention.
Is it possible to use AWS DataSync to synchronize data between two on-premises servers?
No, AWS DataSync cannot be used to synchronize data between two on-premises servers. Its primary function is to move data between on-premises systems and AWS storage services, or between AWS storage services.
What protocols does AWS DataSync use to transfer data?
AWS DataSync uses the Network File System (NFS), Server Message Block (SMB), object, and the AWS DataSync agent to read data for transfer.
What is File Gateway in AWS Storage Gateway?
File Gateway is a service that provides a set of file interfaces, or shares, that an on-premises application can interact with, enabling the application to store and retrieve objects in Amazon S3.
What is the cost of data transfer out from Amazon S3 to the internet?
The pricing varies based on the amount of data transferred. The charges can be checked from the official AWS Data Transfer Pricing page.
How do AWS Storage Gateway and AWS DataSync ensure data integrity?
AWS DataSync uses checksums to automatically verify data integrity at the source and destination. Similarly, Storage Gateway keeps a cache of recently read data in the local disk cache.
Is AWS DataSync suitable for one-time data migration tasks?
Yes, AWS DataSync can be used for as-needed or one-time data migration tasks as well as ongoing, scheduled data replication tasks.
What does Volume Gateway in AWS Storage Gateway provide?
Volume Gateway provides block storage volumes that you can attach as iSCSI devices from your on-premises application servers. It offers two configurations: stored and cached volumes.
Can you transfer data between two AWS regions using AWS DataSync?
Yes, you can use AWS DataSync to copy data across AWS regions for distributed applications or to keep copied data close to where it is used for fast and low-cost inter-region access.
What type of data can be moved using AWS DataSync?
You can use AWS DataSync to transfer almost all types of data, including file system data and object data.
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