Kyndryl Interview Questions, Process, and Tips

Manually deploying OpenStack involves several steps including setting up the environment, installing the necessary components, configuring networking, and launching instances.

• Set up the environment by installing a base operating system such as Ubuntu or CentOS.

• Install the necessary components like Keystone, Glance, Nova, Neutron, and Cinder.

• Configure networking by setting up bridges, VLANs, and IP addresses.

• Launch inst...read more

Various networks like management network, data network, external network, and storage network are required for an OpenStack environment.

• Management network for communication between OpenStack services and components

• Data network for transferring data between instances

• External network for connecting to the outside world

• Storage network for storage operations like block storage or object storage

SR-IOV and DPDK are technologies used to improve network performance in virtualized environments.

• SR-IOV (Single Root I/O Virtualization) allows a single physical network interface card (NIC) to appear as multiple virtual NICs, improving network performance by reducing overhead.

• DPDK (Data Plane Development Kit) is a set of libraries and drivers for fast packet processing, bypassing the kernel network stack for improved ...read more

The process flow for instance creation involves selecting the instance type, configuring the instance settings, launching the instance, and monitoring its status.

• Select the instance type based on requirements (e.g. CPU, memory, storage)

• Configure the instance settings such as network, security, and storage options

• Launch the instance using the chosen settings

• Monitor the instance status to ensure it is running properly

Nova conductor is responsible for offloading certain tasks from the Nova compute service to improve performance and scalability.

• Manages scheduling and resource allocation for instances

• Handles live migrations of instances between compute nodes

• Improves performance and scalability by offloading tasks from Nova compute service