HCLTech
10+ Interview Questions and Answers
Q1. Why there is a difference in ascent?
The difference in ascent is due to various factors such as altitude, air pressure, temperature, and wind speed.
Altitude affects the air pressure and density, which in turn affects the ascent.
Temperature affects the air density, which affects the ascent.
Wind speed affects the ascent by creating turbulence and changing the direction of the aircraft.
Different aircraft have different ascent rates due to their design and engine power.
Pilots may also adjust the ascent rate based on...read more
Q2. What is DDL DML DCL?
DDL, DML, and DCL are three types of SQL commands used to manipulate databases.
DDL (Data Definition Language) is used to define the database schema and structure.
DML (Data Manipulation Language) is used to manipulate data within the database.
DCL (Data Control Language) is used to control access to the database.
Examples of DDL commands include CREATE, ALTER, and DROP.
Examples of DML commands include SELECT, INSERT, UPDATE, and DELETE.
Examples of DCL commands include GRANT and ...read more
Q3. 1. Layers in OSI model and functions.
The OSI model has 7 layers, each with a specific function in data communication.
Layer 1: Physical layer - deals with the physical transmission of data
Layer 2: Data link layer - responsible for error-free transfer of data between nodes
Layer 3: Network layer - handles routing and forwarding of data packets
Layer 4: Transport layer - ensures reliable delivery of data between end systems
Layer 5: Session layer - establishes, manages and terminates connections between applications
La...read more
Q4. Domestic wires and it's uses
Domestic wires are used for electrical connections within a building or residence.
Domestic wires are typically made of copper or aluminum.
They are used for a variety of purposes such as lighting, power outlets, and appliances.
Different types of wires are used for different applications, such as solid core or stranded wires.
Wires are typically color-coded to indicate their purpose and voltage rating.
Examples of domestic wires include Romex, THHN, and NM-B wires.
Q5. Duplex mode types and features
Duplex mode types and features
Duplex mode refers to the ability of a network to transmit and receive data simultaneously
Half-duplex mode allows for communication in both directions, but not at the same time
Full-duplex mode allows for simultaneous communication in both directions
Duplex mode is important for high-speed networks and reduces collisions and delays
Examples of full-duplex devices include switches and fiber optic cables
Q6. What is the diff between c and c++
C is a procedural programming language while C++ is an object-oriented programming language with features like classes and inheritance.
C is a procedural programming language while C++ is a multi-paradigm language with support for object-oriented programming.
C does not support classes and objects, while C++ does.
C uses structures for data organization, while C++ uses classes.
C does not have features like inheritance and polymorphism, which are present in C++.
C++ allows functio...read more
Q7. Processors of computers
Processors are the brain of a computer, responsible for executing instructions and performing calculations.
Processors are also known as central processing units (CPUs)
They come in different types and speeds, such as Intel Core i5 or AMD Ryzen 7
Processors have a clock speed measured in GHz, which determines how many instructions they can execute per second
They have multiple cores, allowing them to perform multiple tasks simultaneously
Processors use cache memory to store freque...read more
Q8. 2. Architecture of cloud computing
Cloud computing architecture refers to the components and subcomponents required for cloud computing.
Cloud computing architecture includes front-end platforms, back-end platforms, cloud-based delivery, and network infrastructure.
Front-end platforms include user devices and web browsers.
Back-end platforms include servers, storage, and databases.
Cloud-based delivery includes software as a service (SaaS), platform as a service (PaaS), and infrastructure as a service (IaaS).
Netwo...read more
Q9. What is operting syatem
Operating system is a software that manages computer hardware and provides services for computer programs.
Manages computer hardware resources
Provides services for computer programs
Controls input/output devices
Manages memory and processes
Examples: Windows, macOS, Linux
Q10. Sdlc and its phases
SDLC stands for Software Development Life Cycle which is a process followed by software development teams to design, develop and test high-quality software.
SDLC is a structured process consisting of several phases including planning, analysis, design, development, testing, deployment, and maintenance.
Each phase has its own set of deliverables and objectives that must be met before moving on to the next phase.
The planning phase involves defining the project scope, objectives, ...read more
Q11. Rectifier and use
A rectifier is an electronic device that converts AC to DC.
Rectifiers are used in power supplies to convert AC to DC for electronic devices.
They are also used in welding machines, battery chargers, and electroplating equipment.
There are two types of rectifiers: half-wave and full-wave.
Half-wave rectifiers only allow half of the AC waveform to pass through, while full-wave rectifiers allow the entire waveform to pass through.
Rectifiers can be made using diodes or other semicon...read more
Top HR Questions asked in null
Interview Process at null
Top Graduate Engineer Trainee (Get) Interview Questions from Similar Companies
Reviews
Interviews
Salaries
Users/Month