Twenty19 Interview Questions and Answers

A bond is a debt security that represents a loan made by an investor to a borrower.

• Bonds are issued by corporations, municipalities, and governments to raise capital.

• They have a fixed interest rate and a maturity date when the principal is repaid.

• Bonds are generally considered less risky than stocks but offer lower potential returns.

• Investors can buy and sell bonds on the secondary market.

• Examples of bonds include U.S....read more

Fund Accounting is a specialized accounting system used by non-profit organizations and government agencies to track and manage funds.

• It involves tracking and reporting on the financial activity of specific funds or grants.

• It ensures that funds are used for their intended purposes and that financial reports are accurate and transparent.

• Examples include tracking donations to a non-profit organization or managing governm...read more

Amortization is the process of spreading out a loan into smaller, regular payments over a period of time.

• It is used to pay off a debt over time with regular payments

• Each payment includes both principal and interest

• The amount of interest decreases over time as the principal is paid off

• Examples include mortgages, car loans, and student loans

WASO is Wake After Sleep Onset, TSO is Total Sleep Time, and EPS is Earnings Per Share.

• WASO is the amount of time spent awake after initially falling asleep.

• TSO is the total amount of time spent sleeping, including both REM and non-REM sleep.

• EPS is a financial metric that represents the portion of a company's profit allocated to each outstanding share of common stock.

• WASO and TSO are commonly used in sleep studies, whi

The financial statements (BS, IS, CF) have common elements such as assets, liabilities, equity, revenue, expenses, and cash flows.

• Assets: resources owned by the company

• Liabilities: obligations owed by the company

• Equity: residual interest in the assets of the company

• Revenue: income generated by the company

• Expenses: costs incurred by the company

• Cash flows: inflows and outflows of cash

A stock split increases the number of shares outstanding and decreases the price per share, but does not affect the market capitalisation.

• Stock split does not affect the total value of the company

• Market capitalisation remains the same after a stock split

• Stock split increases the number of shares outstanding and decreases the price per share

• For example, if a company has 1 million shares outstanding and the stock splits ...read more

Cash flow statements have three main components: operating activities, investing activities, and financing activities.

• Operating activities: cash inflows and outflows from the company's core business operations.

• Investing activities: cash inflows and outflows from buying or selling long-term assets.

• Financing activities: cash inflows and outflows from borrowing or repaying debt, issuing or buying back stock, and paying di...read more

EPS is calculated by dividing the company's net income by the number of outstanding shares.

• EPS = Net Income / Outstanding Shares

• Net Income is the company's total earnings after expenses and taxes

• Outstanding Shares are the total number of shares issued by the company

• EPS is an important metric for investors to evaluate a company's profitability

• Higher EPS indicates better profitability and potential for higher dividends

I have worked on various technologies including Java, Python, AWS, Docker, and Kubernetes.

• Java

• Python

• AWS

• Docker

• Kubernetes

Daily operational activities case studies

• Case study of optimizing production line for efficiency

• Case study of implementing new safety protocols in a manufacturing plant

• Case study of troubleshooting and resolving technical issues in a software development team

• Case study of streamlining inventory management in a retail store

• Case study of improving customer service processes in a call center

Project management is the process of planning, organizing, and overseeing the execution of a project from start to finish.

• It involves defining project goals and objectives

• Creating a project plan and timeline

• Assigning tasks and responsibilities to team members

• Monitoring progress and making adjustments as needed

• Ensuring that the project is completed on time, within budget, and meets the desired quality standards

• Examples ...read more

Financial and cost control is the process of monitoring and managing project expenses to ensure they stay within budget.

• Developing a detailed budget plan

• Tracking expenses and comparing them to the budget plan

• Identifying and addressing cost overruns

• Negotiating with vendors to get the best prices

• Implementing cost-saving measures

• Regularly reporting on financial status to stakeholders

Resource management is the process of planning, allocating, and optimizing resources to achieve organizational goals.

• It involves identifying the resources needed for a project or task

• Allocating those resources in an efficient manner

• Monitoring and controlling resource usage to ensure optimal performance

• Examples include managing personnel, finances, equipment, and time

• Effective resource management can lead to increased p

2G, 3G, and 4G call flow are the processes involved in establishing and maintaining a mobile phone call.

• 2G call flow involves circuit-switched technology and uses Time Division Multiple Access (TDMA) for voice transmission.

• 3G call flow uses packet-switched technology and supports both voice and data transmission.

• 4G call flow uses Long-Term Evolution (LTE) technology and provides high-speed data transmission.

• All call fl...read more

Single RAN is a network architecture that allows multiple wireless technologies to be supported on a single physical network.

• Single RAN stands for Single Radio Access Network.

• It enables multiple wireless technologies such as 2G, 3G, 4G, and 5G to be supported on a single physical network.

• This reduces the need for multiple hardware and software components, resulting in cost savings and simplified network management.

• Sing...read more

VOLTE stands for Voice over LTE. It is a technology that allows voice calls to be made over a 4G LTE network.

• VOLTE uses IP packets to transmit voice calls over the LTE network

• It provides better call quality and faster call setup times compared to traditional 2G/3G networks

• VOLTE also allows for simultaneous voice and data usage on the same network

• Examples of VOLTE-enabled devices include iPhone 6 and above, Samsung Gala...read more

LTE is a standard for wireless broadband communication while VoLTE is a technology that enables voice calls over LTE network.

• LTE stands for Long-Term Evolution and is a standard for wireless broadband communication.

• VoLTE stands for Voice over LTE and is a technology that enables voice calls over LTE network.

• LTE is used for data transfer while VoLTE is used for voice calls.

• VoLTE provides better call quality and faster c...read more

Transport network refers to the infrastructure that enables the movement of people, goods, and information.

• Transport network includes roads, railways, airports, seaports, and communication networks.

• It plays a crucial role in the economy by facilitating trade and commerce.

• Examples of transport networks include the interstate highway system in the US and the European railway network.

• Transport network planning involves op...read more

ABIS over IP and ABIS over TDM are two different methods of transmitting biometric data.

• ABIS over IP uses internet protocol to transmit biometric data while ABIS over TDM uses time-division multiplexing.

• ABIS over IP is more flexible and scalable than ABIS over TDM.

• ABIS over TDM is more reliable and secure than ABIS over IP.

• ABIS over IP is suitable for remote locations while ABIS over TDM is suitable for local networks.

• ...read more

2G, 3G, and 4G are mobile network technologies with different architectures.

• 2G uses circuit-switched technology and is primarily used for voice calls and text messaging.

• 3G uses packet-switched technology and offers faster data transfer rates than 2G.

• 4G uses all-IP packet-switched technology and provides even faster data transfer rates than 3G.

• 4G also supports advanced features like VoLTE and carrier aggregation.

• Each ge...read more

I am a Senior engineer with 10+ years of experience in software development, specializing in backend systems and cloud technologies.

• 10+ years of experience in software development

• Specialize in backend systems and cloud technologies

• Strong problem-solving skills

• Experience with large-scale distributed systems

• Proficient in programming languages such as Java, Python, and Go

I have worked in various companies ranging from startups to large corporations, gaining experience in diverse technologies and industries.

• Worked in a startup where I was responsible for developing a scalable backend system using Node.js and MongoDB.

• At a mid-sized company, I led a team in implementing CI/CD pipelines for faster and more reliable software delivery.

• In a large corporation, I worked on optimizing performanc...read more

I am impressed by the company's innovative projects and strong reputation in the industry.

• Company's reputation for cutting-edge technology

• Opportunity to work on challenging projects

• Positive reviews from current employees

My notice period is currently 3 months, but it may be negotiable depending on the circumstances.

• My current notice period is 3 months

• I am open to negotiation depending on the circumstances

• I can provide examples of when I have negotiated notice periods in the past

C code for printing Fibonacci Series upto n elements

• Declare three variables to store the current, previous and next numbers in the series

• Initialize the previous and current variables to 0 and 1 respectively

• Use a loop to print the next number in the series by adding the previous two numbers

• Loop should run n times to print n elements in the series

I have the technical skills, experience, and passion to deliver high-quality software solutions.

• I have a strong background in programming languages such as Java, Python, and C++.

• I have experience working on complex software projects and collaborating with cross-functional teams.

• I am passionate about staying up-to-date with the latest technologies and trends in software development.

• I am a quick learner and have a strong...read more

Ericsson is a global leader in telecommunications technology with a strong focus on innovation and career development.

• Global leader in telecommunications technology

• Strong focus on innovation

• Opportunities for career development

Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.

• Start from the first element and compare it with the next element

• If the first element is greater than the next element, swap them

• Repeat this process for all elements in the list

• Continue this process until no more swaps are needed

A Turing Machine is a theoretical device that can simulate any algorithmic computation.

• It was proposed by Alan Turing in 1936 as a model for computation.

• It consists of a tape, a head that can read and write symbols on the tape, and a set of rules for transitioning between states.

• It can simulate any algorithmic computation, making it a powerful tool for theoretical computer science.

• It is often used as a theoretical basi...read more

A hash function is a mathematical function that converts input data of arbitrary size into a fixed-size output.

• Hash functions are used to index data in hash tables.

• They are also used in cryptography to securely store passwords.

• Examples of hash functions include MD5, SHA-1, and SHA-256.