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AT&S Network Engineer L1 Interview Questions, Process, and Tips

Updated 13 Mar 2024

AT&S Network Engineer L1 Interview Experiences

1 interview found

Interview experience
-
Difficulty level
Hard
Process Duration
More than 8 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Mar 2022. There were 2 interview rounds.

Interview Questionnaire 

18 Questions

  • Q1. Tell me previous company work experience
  • Q2. Introduce your self
  • Q3. Tell me your roles and responsibility's
  • Q4. What is your hobbies?
  • Q5. From how many Staying in Hyd?
  • Q6. What is your career goal?
  • Q7. Are you married?
  • Q8. What is the VLAN?
  • Ans. 

    VLAN stands for Virtual Local Area Network, used to segment a network into multiple isolated networks for security and performance purposes.

    • VLANs allow for logical segmentation of a network, improving security and performance.

    • Devices within the same VLAN can communicate with each other as if they were on the same physical network.

    • VLANs are commonly used in enterprise networks to separate different departments or functi...

  • Answered by AI
  • Q9. ISO Model and how many layers?
  • Ans. 

    The ISO model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.

    • The ISO model stands for International Organization for Standardization model.

    • It consists of seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

    • Each layer has specific functions and communicates with the adjacent layers for data transmission.

    • For ...

  • Answered by AI
  • Q10. What is switching and routing?
  • Ans. 

    Switching is the process of forwarding data packets between devices on the same network, while routing is the process of forwarding data packets between different networks.

    • Switching operates at Layer 2 of the OSI model, using MAC addresses to forward packets within a network.

    • Routing operates at Layer 3 of the OSI model, using IP addresses to forward packets between networks.

    • Switches create broadcast domains, while rout...

  • Answered by AI
  • Q11. What is proxy and DHCP?
  • Ans. 

    Proxy is an intermediary server that separates end users from the websites they browse. DHCP is a network protocol that assigns IP addresses to devices.

    • Proxy server acts as a middleman between a user and the internet, providing anonymity and security.

    • DHCP dynamically assigns IP addresses to devices on a network, simplifying network administration.

    • Proxy servers can be used to bypass content restrictions or improve netwo...

  • Answered by AI
  • Q12. What is the BGP and why it used?
  • Ans. 

    BGP stands for Border Gateway Protocol, used for routing between different autonomous systems on the internet.

    • BGP is a standardized exterior gateway protocol used to exchange routing information between different autonomous systems (AS).

    • It helps in determining the best path for data packets to travel between networks.

    • BGP is crucial for ensuring efficient and reliable internet connectivity.

    • It allows network administrato...

  • Answered by AI
  • Q13. What are the routing& routed protocol?
  • Ans. 

    Routing protocols determine how data packets are forwarded across a network, while routed protocols define the format of the packets.

    • Routing protocols are used by routers to determine the best path for forwarding data packets.

    • Examples of routing protocols include RIP, OSPF, and BGP.

    • Routed protocols are used to format the data packets themselves, such as IP or IPv6.

    • Examples of routed protocols include TCP/IP, UDP, and I

  • Answered by AI
  • Q14. What is ospf, Rip, igrp, eigrp protocols?
  • Ans. 

    OSPF, RIP, IGRP, and EIGRP are routing protocols used in networking to determine the best path for data packets to travel.

    • OSPF (Open Shortest Path First) is a link-state routing protocol that uses Dijkstra's algorithm to calculate the shortest path.

    • RIP (Routing Information Protocol) is a distance-vector routing protocol that uses hop count as a metric to determine the best path.

    • IGRP (Interior Gateway Routing Protocol) ...

  • Answered by AI
  • Q15. What are the VLAN Types?
  • Ans. 

    VLAN types include default, data, voice, management, and native VLANs.

    • Default VLAN: VLAN 1 is the default VLAN on Cisco switches.

    • Data VLAN: Used for data traffic.

    • Voice VLAN: Used for voice traffic.

    • Management VLAN: Used for managing network devices.

    • Native VLAN: Untagged VLAN used for trunking.

  • Answered by AI
  • Q16. Tell some router commands?
  • Ans. 

    Router commands are used to configure and manage routers in a network.

    • show ip interface brief - displays a summary of the router's interfaces and their IP addresses

    • show running-config - displays the current configuration of the router

    • interface [interface name] - enters interface configuration mode for a specific interface

    • ip route [destination network] [subnet mask] [next hop IP] - adds a static route to the routing tab

  • Answered by AI
  • Q17. What is the subnet mask and types?
  • Ans. 

    Subnet mask is a 32-bit number used to divide an IP address into network and host portions.

    • Subnet mask is used to determine which part of an IP address is the network portion and which part is the host portion.

    • There are different types of subnet masks such as Classful subnet masks, Classless subnet masks, and Variable Length Subnet Masks (VLSM).

    • Examples of subnet masks include 255.255.255.0 (Class C), 255.255.0.0 (Clas

  • Answered by AI
  • Q18. Why you got job?

Interview Preparation Tips

Topics to prepare for AT&S Network Engineer L1 interview:
  • CCNA
Interview preparation tips for other job seekers - It' a great experience and I felt very happy with worked in this organization here I gained lot of network knowledge and technical skills that's a opportunity in my career. If any requirement please let me know because I want to work with you again it's amazing experience... Thanks

Skills evaluated in this interview

Interview questions from similar companies

I appeared for an interview in Aug 2017.

Interview Questionnaire 

8 Questions

  • Q1. Basics of C
  • Q2. Puzzles on data structures
  • Q3. Asked on project
  • Q4. C basics
  • Q5. 3 basic and simple codes
  • Q6. Family background
  • Q7. How was technical interviews
  • Q8. Why should we not hire you
  • Ans. 

    I lack experience in a specific technology required for the role.

    • I may not have experience with a specific programming language or framework mentioned in the job description.

    • I may not have worked on projects similar to what your company is working on.

    • I may not have experience with certain tools or technologies that are crucial for the role.

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: It was just mcq questions but had negative marking
Duration: 1 hour 30 minutes
Total Questions: 60

Round: Technical Interview
Experience: It was cool and interactive round and was fun

Round: Technical Interview
Experience: It was interesting but I fumbled a little

Round: HR Interview
Experience: It was ok

College Name: Cummins College Of Engineering For Women (CCOEW)

I appeared for an interview in Feb 2017.

Interview Questionnaire 

7 Questions

  • Q1. What is a malloc function and where is it used and how is it different from new?
  • Ans. 

    malloc is a function in C that dynamically allocates memory on the heap. It is used to allocate memory for variables or data structures.

    • malloc is used in C programming language.

    • It is used to allocate memory on the heap.

    • malloc is different from 'new' in C++ as it does not call constructors for objects.

  • Answered by AI
  • Q2. What is the difference between C++ and Objective C and where will you use it?
  • Ans. 

    C++ is a general-purpose programming language while Objective C is a superset of C used for iOS and macOS development.

    • C++ is widely used for developing applications, games, and system software.

    • Objective C is mainly used for iOS and macOS development.

    • C++ supports both procedural and object-oriented programming paradigms.

    • Objective C is an object-oriented language with dynamic runtime features.

    • C++ has a larger community a...

  • Answered by AI
  • Q3. What is the difference between class container and class composition?
  • Ans. 

    Class container is a class that holds objects of other classes, while class composition is a way to combine multiple classes to create a new class.

    • Class container holds objects of other classes, acting as a collection or container.

    • Class composition combines multiple classes to create a new class with its own behavior and attributes.

    • In class container, the objects are typically stored in a data structure like an array o...

  • Answered by AI
  • Q4. There are fifteen horses and a racing track that can run five horses at a time. You have to figure out the top 3 horses out of those and you don't have any timer machine to measure. How will you find the t...
  • Ans. 

    Divide the horses into groups of 5 and race them. Take the top 2 from each race and race them again. Finally, race the top 2 horses to determine the top 3.

    • Divide the horses into 3 groups of 5 and race them.

    • Take the top 2 horses from each race and race them again.

    • Finally, race the top 2 horses to determine the top 3.

  • Answered by AI
  • Q5. What is the most difficult problem that you have solved (during work) till now and why you think you could do so?
  • Ans. 

    Developing a real-time data processing system for a high-traffic e-commerce website

    • Implemented a distributed system architecture to handle large volumes of data

    • Optimized algorithms for efficient data processing and storage

    • Utilized caching mechanisms to improve system performance

    • Worked closely with cross-functional teams to troubleshoot and resolve issues

    • Example: Successfully reduced data processing time by 50% by imple

  • Answered by AI
  • Q6. Why you want to change your current job?
  • Ans. 

    Seeking new challenges and opportunities for growth.

    • Looking for a more challenging role to further develop my skills

    • Interested in exploring new technologies and industries

    • Seeking better career advancement opportunities

    • Want to work in a more collaborative team environment

  • Answered by AI
  • Q7. What is the width of a tree? How will you calculate the width of the tree?
  • Ans. 

    The width of a tree is the maximum number of nodes at any level in the tree.

    • To calculate the width of a tree, we can perform a level order traversal and keep track of the maximum number of nodes at any level.

    • We can use a queue data structure to perform the level order traversal.

    • At each level, we count the number of nodes in the queue and update the maximum width if necessary.

  • Answered by AI

Interview Preparation Tips

Skills: Basic C/C++, Implementing Data Structures In C++

Skills evaluated in this interview

I appeared for an interview before May 2016.

Interview Preparation Tips

Round: written test
Experience: it was elitmus test conducted by the company itself on campus. As per my knowledge only those scoring 90 percentile got selected for round 2.
Tips: Attempt only those ques that are necessary for scoring 90+ in e litmus. Specially in verbal don't attempt more then required questions, though you might be tempted. The aim is not to score max bt to score 90+

Round: Technical Interview
Experience: This was a programming based round. I was asked to write algorithms for various array linked list based problems. There was cross questioning prompting to reduce complexity and to use different data structures for same problems.

Mostly it focused on subjects like c, data structures and ADA.
Tips: Be clear with basic of data structures and algorithms. Pointers, queue, stacks, array linked lists, sorting etc are the keywords.

Round: Technical Interview
Experience: This was a information security specific round since that was my major. In depth cross questioning on my thesis topics, honeypots, network intrusion etc. Security certificates, and on the go problems to provide security solution layer wise in different scenarios. Security concept of torrents was also asked in detail.
Tips: It was more of a security discussion and throwing of ideas about how things in a particular case could work or could not. Don't worry about right or wrong answer just be clear with your reasoning about the solution you are suggesting.

Round: Other Interview
Experience: I don't know what to name this round, but it focused mainly on developing test cases for an object. Say they gave me a stapler and said to develop a test plan listing down test cases for a given object to pass so that it can be confirmed that it is a stapler. Another scenario was with a lift.
Tips: This is one round where your presence of mind and inter personal skills matter. I think the way you present your thoughts was most important here.

Round: Behavioural Interview
Experience: This was was mostly about how would you react in a given professional situation
Like your assigned work could not be completed on time, or if you are doing something wrong with the work assigned.
Tips: This is all about inter personal skills and putting your best foot forward :)

College Name: Indira Gandhi Delhi Technical University For Women, Delhi

Software Engineer Interview Questions & Answers

Intel user image ESHAN SHEKHAR cs15m018

posted on 2 Dec 2016

I applied via Campus Placement and was interviewed in Dec 2016. There were 5 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Given a blackbox with arithmetic circuits , design the logical circuits
  • Ans. 

    Design logical circuits for arithmetic circuits in a blackbox.

    • Understand the functionality of the arithmetic circuits in the blackbox.

    • Identify the inputs and outputs of the blackbox.

    • Design logical circuits using logic gates to replicate the arithmetic operations.

    • Test the logical circuits to ensure they produce the same outputs as the arithmetic circuits.

  • Answered by AI
  • Q2. Embedded c-code for recursion
  • Ans. 

    Recursion in embedded C-code allows a function to call itself, useful for repetitive tasks or complex algorithms.

    • Ensure proper base case to avoid infinite recursion

    • Use stack space efficiently as embedded systems have limited resources

    • Avoid recursive functions with deep call stacks to prevent stack overflow

    • Example: Recursive function to calculate factorial of a number

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: During this round we had some technical questions and some digital logic questions.
Tips: Please be patient.Interviewers do stress testing. Don't panic even if you don't know any answers.
Duration: 2 hours
Total Questions: 1

Round: Technical Interview
Experience: He asked me questions regarding my project and some coding questions
Tips: Please be patient.Interviewers do stress testing. Don't panic even if you don't know any answers.

Round: Technical + HR Interview
Experience: He asked me questions regarding my project and some coding questions
Tips: Please be patient.Interviewers do stress testing. Don't panic even if you don't know any answers.

College Name: IIT Madras

Skills evaluated in this interview

Software Engineer Interview Questions & Answers

Intel user image Niranjhana Narayanan

posted on 2 Dec 2016

I applied via Campus Placement and was interviewed in Dec 2016. There were 4 interview rounds.

Interview Preparation Tips

Round: Test
Experience: Questions were based on C concepts, given piece of code, find error, output,etc then data structures, bit manipulation, a few aptitude questions were also there (around 5-7).
Duration: 1 hour
Total Questions: 30

Round: Technical + HR Interview
Experience: I was asked to explain project in detail, I had done projects on embedded, so was asked what fields did you use in that structure, why this implementation and not some related other. Then questions on C concepts, memory allocation, function pointers, data structures, linked lists, then bit manipulation in registers. Then later, why higher studies, would you still go for higher studies if you had a good job at a company, why etc.
Tips: Just be thorough with C (Know your Kernighan Ritchie) and be prepared to go into details about your projects.

College Name: IIT Madras

I applied via Campus Placement and was interviewed in Dec 2016. There were 5 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Tell me about your self
  • Ans. 

    I am a passionate software engineer with experience in developing web applications using various technologies.

    • Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular

    • Proficient in backend development with Node.js and databases like MongoDB and MySQL

    • Familiar with version control systems like Git and project management tools like Jira

  • Answered by AI
  • Q2. Questions on gen data structures and basic electrical questions Regards software - Dsa,computer organization,computer networks

Interview Preparation Tips

Round: Test
Experience: I was gen basic analytics questions
Tips: No needforany serious preperation,just be yourself
Duration: 45 minutes
Total Questions: 25

Round: Technical + HR Interview
Experience: I got trough most of dsa and computer network questions but i was notso strong in digital part so i cupped
Tips: Just know the basics of all the areas you are interested in.

Round: HR Interview
Experience: This is the basic question expected i have gone through my family childhood experiences and hobies
Tips: Every person have a unique style of expressing themselves ,so prepare for these kind of questions,dont rise any interest in higher studies

College Name: IIT Madras

I applied via Campus Placement and was interviewed in Dec 2016. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. C Programming Questions OS Related questions
  • Q2. Write how semaphore works
  • Ans. 

    Semaphore is a synchronization tool used to control access to a shared resource.

    • Semaphore maintains a count of available resources.

    • A process can request access to a resource by decrementing the semaphore count.

    • If the count is zero, the process is blocked until a resource becomes available.

    • When a process is done with a resource, it increments the semaphore count.

    • If there are blocked processes waiting for a resource, one

  • Answered by AI
  • Q3. Question on looping constructs

Interview Preparation Tips

College Name: IIT MADRAS

Skills evaluated in this interview

I applied via Campus Placement and was interviewed in Dec 2016. There were 3 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Question on pointers and concepts based on Resume
  • Q2. Device Drivers, Linux, Firmware and some questions like "how will you handle some scenarios"
  • Q3. Why Intel, Introduce yourself
  • Ans. 

    I am passionate about technology and innovation, and I believe Intel is at the forefront of cutting-edge advancements in the field.

    • I have always been fascinated by the latest advancements in technology and Intel's reputation for innovation drew me to the company.

    • I admire Intel's commitment to pushing the boundaries of what is possible in the tech industry.

    • I am excited about the opportunity to work with a team of talent...

  • Answered by AI

Interview Preparation Tips

College Name: IIT Madras

I applied via Campus Placement and was interviewed in Dec 2016. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. OS concepts, C programme to convert big endian (int data type) to little endian(short data type)

Interview Preparation Tips

Round: Test
Duration: 1 hour
Total Questions: 25

College Name: IIT Madras

AT&S Interview FAQs

What are the top questions asked in AT&S Network Engineer L1 interview?

Some of the top questions asked at the AT&S Network Engineer L1 interview -

  1. What is ospf, Rip, igrp, eigrp protoco...read more
  2. What is the BGP and why it us...read more
  3. What are the routing& routed protoc...read more

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