AT&T Senior Technical Specialist Interview Questions and Answers

Q1. SQL queries based on design and optimization
Add your answer
Q2. Java concepts around data structure and algorithms
Add your answer

Q1. Tell me about yourself
Add your answer

Q1. Entire background of Human Resources
Ans. 
Human Resources encompasses various functions related to managing and developing an organization's workforce.
• Recruitment and selection

• Employee onboarding and orientation

• Performance management

• Training and development

• Compensation and benefits

• Employee relations

• HR policies and procedures

• Legal compliance

• HR analytics and reporting
Answered by AI
Add your answer
Q2. Checked my convincing skills
Add your answer
Q3. Situational Questions
Add your answer

Q1. Explain how you automate using Robot framework
Ans. 
I automate using Robot framework by creating test cases in a keyword-driven format and utilizing built-in libraries and custom keywords.
• Create test cases using Robot framework syntax

• Utilize built-in libraries for common tasks

• Develop custom keywords for specific automation needs

• Leverage variables and data-driven testing

• Integrate with external tools and APIs for comprehensive automation
Answered by AI
Add your answer
Q2. What was the toughest problem you identified and prevented from happening in field?
Add your answer

Q1. Why did you choose Nokia?
Add your answer
Q2. Why did you choose this domain for applying?
Add your answer

Q1. Reverse linked list
Add your answer
Q2. Find substring in a given string
Ans. 
Use string methods to find a substring within a given string.
• Use the indexOf() method to find the starting index of the substring within the string.

• Use the substring() method to extract the substring based on the starting index and length.

• Consider using regular expressions for more complex substring matching.
Answered by AI
Add your answer

Q1. Find loop in linked list
Ans. 
Detecting a loop in a linked list
• Use two pointers approach - slow and fast pointers

• If there is a loop, the fast pointer will eventually meet the slow pointer

• Check if the fast pointer reaches the end of the list (null) before meeting the slow pointer
Answered by AI
Add your answer
Q2. Delete node from linked list
Ans. 
To delete a node from a linked list, update the pointers of the previous node to skip the node to be deleted.
• Traverse the linked list to find the node to be deleted.

• Update the 'next' pointer of the previous node to skip the node to be deleted.

• Free the memory allocated to the node to be deleted.
Answered by AI
Add your answer

Q1. What is your salary expectations
Ans. 
My salary expectations are based on my experience, skills, and the market rate for this position.
• Research the average salary range for Technical Specialists in the industry and location

• Consider your level of experience and expertise in the field

• Factor in any additional benefits or perks offered by the company

• Be prepared to negotiate based on the job responsibilities and requirements
Answered by AI
Add your answer
Q2. Your strength and weakness
Ans. 
My strength is my attention to detail and my weakness is my tendency to overthink.
• Strength: Attention to detail - I always make sure to thoroughly review my work to catch any errors or inconsistencies.

• Weakness: Overthinking - Sometimes I spend too much time analyzing a situation and struggle to make decisions quickly.
Answered by AI
Add your answer

Q1. Can you describe your previous experience?
Add your answer
Q2. RF technical questions
Add your answer

Q1. Details project technical questions
Add your answer

Q1. How are micro services different from monolithic model?
Ans. 
Microservices are smaller, independent services that work together, while monolithic model is a single, large application.
• Microservices are smaller, independent services that can be developed, deployed, and scaled independently.

• Monolithic model is a single, large application where all components are tightly coupled.

• Microservices communicate with each other through APIs, while monolithic applications use in-process comm...read more
Answered by AI
Add your answer
Q2. Inter service communication in a distributed system
Ans. 
Inter service communication in a distributed system involves communication between different services to achieve a common goal.
• Use of APIs for communication between services

• Message queues for asynchronous communication

• Service discovery for locating and connecting to services

• Implementing protocols like REST, gRPC, or MQTT

• Handling communication failures and retries
Answered by AI
Add your answer
Q3. Explain pub sub model
Ans. 
Pub sub model is a messaging pattern where senders (publishers) of messages do not program the messages to be sent directly to specific receivers (subscribers).
• Publishers send messages to a central topic or channel without specifying the recipients

• Subscribers subscribe to the topics or channels they are interested in and receive messages from there

• Decouples the sender and receiver, allowing for more flexibility and sca...read more
Answered by AI
Add your answer

Implement synchronisation between Go routines

Q1. How Kubernetes handles scaling?
Ans. 
Kubernetes handles scaling by automatically adjusting the number of pods based on resource usage.
• Kubernetes uses Horizontal Pod Autoscaler (HPA) to automatically scale the number of pods based on CPU or memory usage.

• HPA adjusts the number of replicas of a Deployment, ReplicaSet, or StatefulSet.

• Kubernetes also supports Vertical Pod Autoscaler (VPA) for adjusting resource requests and limits of pods based on resource usa...read more
Answered by AI
Add your answer
Q2. Difference between containers and pods
Ans. 
Containers are a lightweight, standalone executable package that includes everything needed to run a piece of software, while pods are a group of one or more containers that share resources and are scheduled together on the same host.
• Containers are individual units of software that package up code and dependencies, while pods are a higher-level concept in Kubernetes that can contain one or more containers.

• Containers ar...read more
Answered by AI
Add your answer

Q1. Difficult situations handled in my career
Add your answer
Q2. Why are you quitting your previous job?
Add your answer