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

1

---

How to load context variables dynamically from file/database?

1

---

Can I define schema of database or tables at run time

1

---

How to export a talend job?

1

---

What are the different layers in cloud computing?

623

---

What do you mean by vpn?

684

---

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

599

---

Explain is openstack python sdk?

237

---

What are the advantages/benefits of using openstack?

263

---

What are the storage types allowed by openstack compute?

310

---

Which is the most important identity service in openstack?

242

---

Explain is the role of api server in openstack?

237

---

Explain the term "flavor" in openstack?

249

---

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

544

---

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

307

---