Tech India Infotech Interview Questions and Answers

Q1. What is stm-1 link
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Q2. What is Ip address and subnet mask
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Q3. What is OSI and TCP/IP Model
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Q4. What are the requirements for the implementation of stm-1 link and what is the capacity of stm-1 link
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Q1. What is ip address and difference between ipv4 and ipv6?
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Q2. What is vlan and vlan-id
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Q3. What is layer-2 and layer-3 services. Also what is the difference between them.
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Q4. Explain sdh structure and sdh frame
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Q5. What is DCCR and DCCM?
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Q6. What is ipv4 and ipv6 address of google dns server
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Q7. What is subnet mask and how to calculate the no. Of usable ip's. What is network host ip and broadcast ip
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Q8. What are different kinds of cards used in tejas 1400 and 1600 mux.
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Q9. What is difference between xa60g and xa20g card.
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Q10. What is gpon technology? Also explain briefly gpon architecture?
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Q11. How to add and delete nodes in NMS?
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Q12. How to upgrade software in olt, ont and tejas 1400 locally and from nms?
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Q13. What are different types of alarms occuring in tejas equipments
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Q14. Explain VCG, VCAT
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Q15. What is ipmpls? What are the advantages of MPLS? Which one is better mpls or traditional routing.
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For python and Java programming languages

Q1. What is technical?
Ans. 
Technical refers to knowledge, skills, and expertise related to a specific field or subject.
• Technical knowledge involves understanding the principles, theories, and practices within a particular area.

• Technical skills are practical abilities to perform tasks or use tools effectively.

• Technical expertise is gained through education, training, and experience.

• Examples: programming languages, engineering design software, mac
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Q2. What you think about technical
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Technical aspects in the field of Industrial Engineering are crucial for optimizing processes and improving efficiency.
• Technical aspects involve utilizing software and tools to analyze data and optimize processes.

• Understanding of manufacturing processes, supply chain management, and quality control is essential.

• Knowledge of automation, robotics, and artificial intelligence can help streamline operations.

• Continuous impr...read more
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Q3. Technology is the application of conceptual knowledge to achieve practical goals, especially in a reproducible way. The word technology can also mean the products resulting from such efforts, including bot...read more
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Q1. Asked about the details of my projects
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Q2. Digital question related to flip flop and mux.
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Q3. Assertion, constraint questions
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Q4. Asked about different ways of saving power
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1hr interview, asked checker code, checked protocol knowledge mentioned in Resume, asked assertion.

Q1. Draw Digital circuit question based on the waveform
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Q2. Asked about code coverage in details
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Q3. 1 technical puzzle, to print infinite series of a given pattern
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Q4. 1 logical puzzle, 50ball in box of 1 colour and 50ball of 2nd colour in another box, calculate highest probability to choose 1 colour ball.
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Q1. What is polymorphism
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Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to be used for different data types or classes.

• Examples include method overloading and method overriding in object-oriented programming.
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Q2. Find missing number from nth number array.
Ans. 
Find missing number from nth number array.
• Iterate through the array and calculate the sum of all numbers

• Calculate the sum of numbers from 1 to n using the formula n*(n+1)/2

• Subtract the sum of array from the sum of numbers from 1 to n to find the missing number
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Q3. Explain inheritance and it types
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Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Inheritance allows a class to reuse code from another class.

• Types of inheritance include single inheritance, where a class inherits from only one parent class, and multiple inheritance, where a class inherits from multiple parent classes.

• Example: Class B inherits from Class A, so Class B can access
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Q4. Find 2nd max elements from aaray
Ans. 
Find 2nd max element from array of strings
• Sort the array in descending order

• Skip the first element (max element)

• Return the second element
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Q1. Scenario based questions
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Q2. Experience as field based questions
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Q1. Process improvements knowledge
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Q2. Projects delivered
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Q1. Stay Rod Length, 11kv line BOQ FOR 1 KM, Substation SLD etc
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Q2. 1600mm, 21 nos Pole with DP ,V Cross ,1 nos DP with Belting & bracing
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Q1. Salary expectation
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Q2. Show your salary in Bank statement, will provide Bike conveyance rs 5 rs/ km, Guest house facility mob. Reimburse etc
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There were two rounds of interviews, which included a case study. It felt more like a discussion than a formal interview. Although I was not selected, the overall experience throughout the process was positive. The HR team was very supportive; in fact, they notified me about my non-selection, which is uncommon in the industry.

Q1. Related to my profile
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Q1. Check if the linked list is palindrome or not
Ans. 
To check if a linked list is a palindrome, compare the first half of the list with the reversed second half.
• Traverse the linked list to find the middle node

• Reverse the second half of the linked list

• Compare the first half with the reversed second half to check for palindrome
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Q2. C string questions
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Q1. Operating systems questions
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Q2. Linked list and system design question
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