How to perform aggregate operations/functions on data in talend?

1

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How to load context variables dynamically from file/database?

1

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Can I define schema of database or tables at run time

1

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How to export a talend job?

1

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What are the different layers in cloud computing?

588

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What do you mean by vpn?

645

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What are the different in software as a service (saas)?

555

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Explain is openstack python sdk?

204

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What are the advantages/benefits of using openstack?

221

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What are the storage types allowed by openstack compute?

271

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Which is the most important identity service in openstack?

212

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Explain is the role of api server in openstack?

210

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Explain the term "flavor" in openstack?

216

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Which commands are used to pause and un-pause (resume) an instance?

496

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What is hypervisor? Which type of hypervisors are supported in openstack?

280

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