10+ 3Columns Interview Questions and Answers

HLD design stands for High Level Design, it is a design document that describes the overall system architecture and design.

• HLD design outlines the structure of the system, including components, modules, interfaces, and data for the system.

• It focuses on the overall system design rather than detailed design of individual components.

• To receive input from the client for HLD design, conduct meetings, interviews, surveys, and workshops to gather requirements and preferences.

• Client ...read more

Circuit Manager is a tool used in GIS to manage and organize electrical circuits.

• Circuit Manager is used to create, edit, and manage electrical circuits in GIS software.

• It allows users to define the connectivity between different electrical components.

• Users can assign attributes to circuits such as voltage, current, and resistance.

• Circuit Manager helps in analyzing and simulating electrical networks.

• To create a circuit manager, users typically need to define the components an...read more

ArcGIS is a proprietary software developed by Esri, while QGIS is an open-source software. Both are used for GIS mapping and analysis.

• ArcGIS is a proprietary software developed by Esri, while QGIS is an open-source software.

• ArcGIS has a more user-friendly interface and advanced features, but it comes with a cost.

• QGIS is free to use and has a strong community support for plugins and extensions.

• Both software can perform similar GIS functions like spatial analysis, data visualiz...read more

FTTH stands for Fiber to the Home, while FTTB stands for Fiber to the Building.

• FTTH (Fiber to the Home) provides fiber optic connections directly to individual residences or buildings.

• FTTB (Fiber to the Building) provides fiber optic connections to a central point within a building, with individual connections then distributed within the building.

• FTTH offers higher bandwidth and faster speeds compared to FTTB.

• FTTH is more commonly used for residential areas, while FTTB is oft...read more

A permit is an official document or license that allows someone to do something, such as construction or land use.

• Permits are required for various activities like construction, land development, zoning changes, etc.

• To start permit work, one must first determine the type of permit needed and the requirements for obtaining it.

• Next, the applicant must fill out the necessary forms and submit them to the appropriate government agency.

• The agency will review the application, conduct...read more

ArcGIS is a popular GIS software used for mapping and spatial analysis.

• ArcGIS is developed by Esri and is widely used in various industries such as urban planning, natural resource management, and emergency response.

• It allows users to create, analyze, and visualize spatial data through maps and layers.

• ArcGIS includes tools for geocoding, routing, and spatial analysis to help users make informed decisions based on geographic information.

• Other popular GIS software options inclu...read more

CWDM and DWDM are multiplexers used in optical communication networks to combine multiple signals onto a single fiber or split signals into multiple fibers.

• CWDM (Coarse Wavelength Division Multiplexing) combines multiple signals onto a single fiber by using different wavelengths of light.

• DWDM (Dense Wavelength Division Multiplexing) also combines multiple signals onto a single fiber but with more closely spaced wavelengths for higher capacity.

• Both CWDM and DWDM can also be us...read more

Design involves creating a plan or concept, drafting is the process of creating detailed technical drawings, and analyzing involves evaluating data or information.

• Design is the initial phase where ideas and concepts are developed.

• Drafting is the technical process of creating detailed drawings based on the design.

• Analysis involves evaluating data or information to draw conclusions or make decisions.

• For example, in GIS engineering, designing a new map layout would involve creat...read more

A duct is a tube or passage that carries air, liquid, or other substances.

• Ducts are commonly used in HVAC systems to distribute air throughout a building.

• In GIS, ducts can represent underground utility lines such as water pipes or electrical cables.

• Ducts can also refer to channels in the body that carry fluids, such as the bile duct or tear duct.

Coaxial network is a type of cable network that uses a central conductor surrounded by an insulating layer and a shield. Power network refers to the distribution of electrical power through a network of cables and transformers.

• Coaxial network consists of a central conductor, insulating layer, and shield to transmit data signals.

• Coaxial cables are commonly used in cable television, internet connections, and networking applications.

• Power network involves the distribution of ele...read more

EPON Designing refers to the process of designing Ethernet Passive Optical Networks for efficient data transmission.

• EPONs use passive optical splitters to distribute data to multiple end users

• EPONs are cost-effective and scalable for delivering high-speed internet access

• EPONs typically operate at speeds of 1 Gbps or 10 Gbps

• EPONs are commonly used in fiber-to-the-home (FTTH) networks

AutoCAD is a computer-aided design software used for creating 2D and 3D drawings and models.

• AutoCAD is widely used in various industries such as architecture, engineering, and construction.

• It allows users to create precise drawings and models with tools like lines, shapes, and dimensions.

• AutoCAD supports both 2D drafting and 3D modeling, making it versatile for different design needs.

• Users can also add annotations, text, and symbols to their drawings for better communication....read more

HFC network stands for Hybrid Fiber-Coaxial network, which is a type of broadband network that combines fiber optic and coaxial cable technologies.

• HFC networks are commonly used by cable TV and internet providers to deliver high-speed internet and television services to customers.

• Fiber optic cables are used for the backbone of the network, providing high bandwidth and fast data transmission.

• Coaxial cables are used for the last mile connection to individual homes or businesses...read more

Previews projects are a feature in ArcGIS Pro that allow users to create and share project templates.

• Previews projects can be used to create standardized project templates for specific workflows or industries.

• These templates can include pre-configured maps, layouts, and data connections.

• Users can share their preview projects with others, allowing for consistent project creation across teams.

• Preview projects can also be used to quickly start new projects with pre-configured se...read more