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I was interviewed in Nov 2023.
Aptitude test , online good knowledge of NMS SDH ECI NPT OTN Ciena etc
I applied via campus placement at Roorkee College of Engineering, Roorkee and was interviewed in Dec 2022.ย There were 2 interview rounds.
DWDM/SDH/CWDM are optical networking technologies. LOS and LOF are types of alarms indicating signal loss or failure.
DWDM (Dense Wavelength Division Multiplexing) is a technology that allows multiple data streams to be transmitted over a single optical fiber by using different wavelengths of light.
SDH (Synchronous Digital Hierarchy) is a standard for transmitting digital signals over optical fibers. It provides a way t...
Indovision Services interview questions for popular designations
I applied via Naukri.com and was interviewed in Jan 2023.ย There were 5 interview rounds.
Check your Mysql Query Test and give the assignment
Group discussion on PHP what did you in your past question regarding on Google API's so on
I applied via Referral and was interviewed before Nov 2023.ย There were 2 interview rounds.
OSI layers refer to the seven layers in the OSI model that define the functions of a network protocol stack.
The OSI (Open Systems Interconnection) model is a conceptual framework used to understand how different networking protocols interact.
There are seven layers in the OSI model, each with its own specific functions and responsibilities.
The layers are: Physical, Data Link, Network, Transport, Session, Presentation, a...
MPLS stands for Multiprotocol Label Switching, a technique used in telecommunications networks to direct data packets along predefined paths.
MPLS is a protocol used to speed up and shape network traffic.
It operates at layer 2.5 of the OSI model, between traditional layer 2 (Data Link Layer) and layer 3 (Network Layer).
MPLS uses labels to make forwarding decisions, allowing for faster and more efficient routing.
It is co...
IP stands for Internet Protocol, a set of rules governing the format of data sent over the internet.
IP addresses are unique identifiers assigned to devices connected to a network.
There are two versions of IP - IPv4 and IPv6.
IP packets contain information such as source and destination addresses, as well as data payload.
IP routing is the process of forwarding packets from one network to another.
Subnetting allows for the...
IPv4 uses 32-bit addresses while IPv6 uses 128-bit addresses.
IPv4 addresses are written in decimal format (e.g. 192.168.1.1) while IPv6 addresses are written in hexadecimal format (e.g. 2001:0db8:85a3:0000:0000:8a2e:0370:7334).
IPv4 supports around 4.3 billion unique addresses, while IPv6 supports an astronomical number of unique addresses (2^128).
IPv4 uses ARP (Address Resolution Protocol) for mapping IP addresses to M...
I applied via Referral and was interviewed before Dec 2021.ย There were 2 interview rounds.
Video analytics process involves using algorithms to analyze CCTV footage and extract useful information.
Video footage is analyzed using computer algorithms
The algorithms can detect and track objects, people, and vehicles
Video analytics can be used for security purposes, traffic management, and retail analytics
Examples of video analytics include license plate recognition, facial recognition, and crowd counting
The proce...
I applied via Referral and was interviewed before May 2021.ย There was 1 interview round.
I applied via Referral and was interviewed in Dec 2024.ย There were 4 interview rounds.
posted on 2 Jan 2025
I applied via Referral
Print a specific pattern using any programming language.
A class in OOP is a blueprint for creating objects, defining their properties and behaviors.
Classes are templates for creating objects in OOP
They define the properties (attributes) and behaviors (methods) of objects
Objects are instances of classes, each with its own unique data
Inheritance allows classes to inherit properties and behaviors from other classes
Encapsulation ensures that the data is hidden and can only be a...
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
Abstract class can have constructors, fields, and methods, while interface cannot have any implementation.
A class can only extend one abstract class, but can implement multiple interfaces.
Abstract classes are used to define common characteristics of subclasses, while interfaces are used to define contracts for...
Joining is combining data from two or more tables based on a related column, while an inner join query retrieves only the matching records.
Joining is used to combine data from multiple tables in a database.
Inner join query retrieves only the records that have matching values in both tables.
Syntax for inner join: SELECT columns FROM table1 INNER JOIN table2 ON table1.column = table2.column;
Example: SELECT orders.order_i...
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