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AT&T Interview Questions, Process, and Tips

Updated 28 Feb 2025

Top AT&T Interview Questions and Answers

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AT&T Interview Experiences

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53 interviews found

I applied via Company Website and was interviewed in Feb 2022. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. All about Linux the asked for
  • Q2. They will randomly ask questions about Linux
Round 2 - Case Study 

Who you handle particular situation

Interview Preparation Tips

Interview preparation tips for other job seekers - Whatever people say never listen them and keep learning keep learning.
This is the key only I can say.

Senior Systems Engineer Interview Questions asked at other Companies

Q1. 2. Explain COMP, COMP-2, COMP-3 and Display. What are the difference between Continue and Next Sentence? Why does SOC7 occur?
View answer (4)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before May 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. Explain the architecture of Kubernetes
  • Ans. 

    Kubernetes is a container orchestration platform that manages and automates the deployment, scaling, and management of containerized applications.

    • Kubernetes uses a master-slave architecture with a control plane and worker nodes.

    • The control plane manages the overall state of the cluster and schedules workloads to the worker nodes.

    • Worker nodes run the containers and communicate with the control plane to receive instructi...

  • Answered by AI
  • Q2. Give case study scenario where you implemented a app through any cloud provider (I preferred with azure)
Round 3 - Technical 

(3 Questions)

  • Q1. Explain the garbage collection process in java
  • Ans. 

    Garbage collection is an automatic process of freeing up memory by removing unused objects.

    • Java uses a mark-and-sweep algorithm for garbage collection

    • Objects that are no longer referenced are marked for deletion

    • The garbage collector runs periodically to remove the marked objects

    • Finalize() method can be used to perform cleanup operations before an object is deleted

  • Answered by AI
  • Q2. Explain how did you implemented CI CD integration through Jenkins
  • Ans. 

    Implemented CI/CD integration through Jenkins using pipeline as code approach

    • Created a Jenkins pipeline job and defined stages for build, test, and deploy

    • Integrated source code management tool like Git with Jenkins

    • Used Jenkins plugins like Maven, Docker, and Kubernetes for building, packaging, and deploying the application

    • Configured Jenkins to trigger the pipeline on every code commit or merge to the main branch

    • Enabled...

  • Answered by AI
  • Q3. Describe how Azure hosted AKS works
  • Ans. 

    Azure hosted AKS is a managed Kubernetes service that simplifies deployment and management of containerized applications.

    • AKS stands for Azure Kubernetes Service

    • AKS is a fully managed Kubernetes container orchestration service

    • AKS automates the deployment, scaling, and management of containerized applications

    • AKS integrates with other Azure services such as Azure Active Directory, Azure Monitor, and Azure Container Regist

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Stick to your resume and do good basic prep in technologies that you’ve mentioned in your resume

Skills evaluated in this interview

Senior Associate Interview Questions asked at other Companies

Q1. On an average, how many invoices can you process in a day?
View answer (10)

I applied via Naukri.com and was interviewed in Sep 2021. There were 4 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. About your current work, roles and responsibilities, how do you debug issues more on kubernetes
Round 2 - Technical 

(1 Question)

  • Q1. Questions on Docker, multistage dockerfile, all about docker and its troubleshooting
Round 3 - Technical 

(1 Question)

  • Q1. Jenkins plugin debugging, kubernetes issues debugging, branching strategies, release management and shell scripting on how would you monitor k8 crashing pods in all namespaces
Round 4 - HR 

(1 Question)

  • Q1. About previous experience, more on work culture and why do you want to switch

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well on all troubleshooting n issue debugging and read the JD well

Devops Engineer Interview Questions asked at other Companies

Q1. Reverse the String Problem Statement You are given a string STR which contains alphabets, numbers, and special characters. Your task is to reverse the string. Example: Input: STR = "abcde" Output: "edcba" Input: The first line of input cont... read more
View answer (3)

I applied via Naukri.com and was interviewed before Jul 2021. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(4 Questions)

  • Q1. Rssi , kpi, Nsb, dus to bbu migration
  • Q2. Lte architecture ,lte frame
  • Q3. Tdd ,fdd , half duplex and full duplex
  • Q4. Call flow , scripts work

Interview Preparation Tips

Topics to prepare for AT&T RAN Engineer interview:
  • LTE
Interview preparation tips for other job seekers - Need to be confident and formal dress .and try to be a smile 😃 on your face

RAN Engineer Interview Questions asked at other Companies

Q1. Whats is MCR ?How we can improve MCR? What is the reason of MCR?
View answer (4)

AT&T interview questions for popular designations

 Network Engineer

 (4)

 Senior Manager

 (3)

 Technical Specialist

 (2)

 Intern

 (2)

 Technical Intern

 (2)

 Data Scientist

 (1)

 Senior Associate

 (1)

 Software Engineer

 (1)

I applied via Naukri.com and was interviewed in Mar 2021. There were 3 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. What is difference between phase of site to site vpn?
  • Ans. 

    The phases of site-to-site VPN are the steps involved in establishing and maintaining a secure connection between two networks.

    • Phase 1: Authentication and key exchange

    • Phase 2: Data encryption and tunnel establishment

    • Phase 3: Traffic protection and monitoring

    • Each phase has its own set of protocols and processes

    • For example, in Phase 1, the VPN peers authenticate each other using methods like pre-shared keys or digital ce

  • Answered by AI
  • Q2. What is NAT?
  • Ans. 

    NAT stands for Network Address Translation. It is a technique used to map a public IP address to a private IP address.

    • NAT is used to conserve public IP addresses.

    • It allows multiple devices to share a single public IP address.

    • NAT can be implemented using hardware or software.

    • There are three types of NAT: Static NAT, Dynamic NAT, and Port Address Translation (PAT).

  • Answered by AI
  • Q3. What know about BGP?
  • Ans. 

    BGP stands for Border Gateway Protocol, a routing protocol used to exchange routing information between different networks.

    • BGP is used to connect different autonomous systems (AS) on the internet.

    • It is a path-vector protocol that selects the best path for data to travel based on various attributes.

    • BGP is used by internet service providers (ISPs) to exchange routing information with each other.

    • It is a complex protocol t...

  • Answered by AI
  • Q4. Some situations based questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepared first basic fundamentals

Skills evaluated in this interview

Network Security Engineer Interview Questions asked at other Companies

Q1. which protocols are used in transport layer of the OSI model?
View answer (1)

Get interview-ready with Top AT&T Interview Questions

Senior Network Architect Interview Questions & Answers

user image Seman Malarvendhan

posted on 19 Dec 2020

Interview Questionnaire 

5 Questions

  • Q1. What are the challenges you have faced in your career? how you mitigate those challenges in to solution?
  • Q2. Which is your biggest achievement in your career?
  • Q3. Which is your special skill differentiated from others?
  • Q4. What strategy you will follow while addressing customer queries?.
  • Ans. 

    I will follow a customer-centric approach and ensure timely and accurate resolution of their queries.

    • Listen actively to understand their concerns

    • Empathize with their situation

    • Provide clear and concise answers

    • Offer solutions that meet their needs

    • Follow up to ensure their satisfaction

  • Answered by AI
  • Q5. What is your biggest strength which help your growth?

Interview Preparation Tips

Interview preparation tips for other job seekers - While answering your questions, don't panic and don't close your eyes, the answer should be loud and clear.

Senior Network Architect Interview Questions asked at other Companies

Q1. What strategy you will follow while addressing customer queries?.
View answer (1)

Jobs at AT&T

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Interview Questionnaire 

2 Questions

  • Q1. Learn from basic and be confident.Lan wan F5 firewall if any
  • Q2. Be confident and only put on resume what you know.

Network Engineer Interview Questions asked at other Companies

Q1. TCP/IP layers, why is transport needed for communication? What is Subnet mask and how does it help in data communication. Why is Vlan needed? Based on what information does a switch and router send a packet or frame? Types of arp, What is p... read more
View answer (2)

I applied via Company Website and was interviewed in Mar 2021. There were 2 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Introduce myself? About At&t? Why i choose this job?

Interview Preparation Tips

Interview preparation tips for other job seekers - Hai....This is my small advice if are waiting for a interview.You should make your english communication fluent.Try to know more about the company. Be confident and dont get panick about the questions. Just keep trying you will surely achieve your goal..All the best.

Telesales/Telemarketing Executive/Officer Interview Questions asked at other Companies

Q1. Why mechanical engineering?
View answer (1)

I applied via Walk-in and was interviewed before Jul 2021. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. Information about Networking?
  • Ans. 

    Networking is the practice of connecting devices together to share resources and communicate with each other.

    • Networking involves the use of protocols and technologies such as TCP/IP, DNS, DHCP, and VLANs.

    • Networks can be wired or wireless, and can span across local or wide areas.

    • Networking also includes security measures such as firewalls, VPNs, and encryption.

    • Examples of network devices include routers, switches, hubs,

  • Answered by AI
  • Q2. Practical Test for networking?

Interview Preparation Tips

Interview preparation tips for other job seekers - Switch and WiFi Network Troubleshooting. My good skill all works helps a lot.

Skills evaluated in this interview

Network Engineer Interview Questions asked at other Companies

Q1. TCP/IP layers, why is transport needed for communication? What is Subnet mask and how does it help in data communication. Why is Vlan needed? Based on what information does a switch and router send a packet or frame? Types of arp, What is p... read more
View answer (2)

I applied via Company Website and was interviewed before Jun 2020. There were 4 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Firstly, we have to know the knowledge of how to gain the customer experience.
  • Q2. Secondly, understand the customer concern.
  • Q3. Eventually, we have to acknowledge, give assurance and give the appropriate response to cx.

Interview Preparation Tips

Interview preparation tips for other job seekers - Always be prepared for, how to convince the customer in any field.

Customer Service Agent Interview Questions asked at other Companies

Q1. What js E cheque ? And what is the time for its clearance
View answer (4)

AT&T Interview FAQs

How many rounds are there in AT&T interview?
AT&T interview process usually has 2-3 rounds. The most common rounds in the AT&T interview process are Technical, HR and Resume Shortlist.
How to prepare for AT&T interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at AT&T. The most common topics and skills that interviewers at AT&T expect are Information Technology, Python, WiFi, Product Management and SQL.
What are the top questions asked in AT&T interview?

Some of the top questions asked at the AT&T interview -

  1. Informatica - Difference between router and filter transformat...read more
  2. Informatica - How can we handle duplicates in mappi...read more
  3. Informatica - What are lookups and their types? Differences between those types...read more
How long is the AT&T interview process?

The duration of AT&T interview process can vary, but typically it takes about less than 2 weeks to complete.

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AT&T Interview Process

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Interview experience

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AT&T Reviews and Ratings

based on 435 reviews

4.1/5

Rating in categories

3.7

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4.1

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4.2

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4.0

Company culture

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3.8

Work satisfaction

Explore 435 Reviews and Ratings
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