UST Cloud Engineer Interview Questions and Answers

Q1. What are the detailed steps for manually deploying OpenStack?
Ans. 
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
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Q2. What networks are required to build an OpenStack environment?
Ans. 
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
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Q3. What are SR-IOV and DPDK, and how do they compare in terms of performance?
Ans. 
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
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Q4. What is the process flow for instance creation?
Ans. 
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
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Q5. What is the function of a nova conductor?
Ans. 
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
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Q1. Are you willing to travel for project-related activities?
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Q2. What is your expected salary in terms of Cost to Company (CTC)?
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Q1. General knowledge on cloud and related stack
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Q1. They can ask irrespective of JD if you are DevOps engineer and applied same but they won't ask questions related to that .
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Basics of computer science

Q1. To remove duplicates in list
Ans. 
Use a Set data structure to remove duplicates from a list of strings.
• Create a Set to store unique elements

• Iterate through the list and add each element to the Set

• Convert the Set back to a list to get the list without duplicates
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Q1. Simple interview asked basics on the Azure policy, landing zone, management groups.
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Q1. Asked about the current project related
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