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INCA INFOTECH TECHNOLOGIES
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I applied via Company Website and was interviewed in Jun 2024. There were 2 interview rounds.
Types of networks include LAN, WAN, MAN, WLAN, PAN, CAN, SAN, and VPN.
LAN (Local Area Network) - small geographical area like a home, office, or building
WAN (Wide Area Network) - covers large geographical areas like cities or countries
MAN (Metropolitan Area Network) - spans a city or large campus
WLAN (Wireless Local Area Network) - uses wireless technology for LAN connections
PAN (Personal Area Network) - connects devic...
DHCP is a network protocol that automatically assigns IP addresses to devices on a network.
DHCP stands for Dynamic Host Configuration Protocol
It allows devices to obtain IP addresses and other network configuration information automatically
DHCP servers are responsible for assigning and managing IP addresses within a network
DHCP clients request IP addresses from DHCP servers when they connect to a network
DNS (Domain Name System) translates domain names to IP addresses to enable communication between devices on a network.
DNS resolves domain names to IP addresses
DNS uses a hierarchical system of servers to store and distribute domain name information
DNS records include A records (IPv4 addresses), AAAA records (IPv6 addresses), MX records (mail servers), and more
IPv4 and IPv6 are two different versions of the Internet Protocol used to identify and locate devices on a network.
IPv4 is the fourth version of the Internet Protocol and uses a 32-bit address scheme.
IPv6 is the sixth version of the Internet Protocol and uses a 128-bit address scheme.
IPv4 addresses are written in decimal format, separated by periods (e.g. 192.168.1.1).
IPv6 addresses are written in hexadecimal format, s...
The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.
The OSI model stands for Open Systems Interconnection model
It consists of seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application
Each layer has specific functions and communicates with the adjacent layers
The Application layer is the top layer and is r...
DNS is used to translate domain names to IP addresses. If internet is not working, check DNS settings, troubleshoot network connection, and contact ISP.
Check DNS settings to ensure they are configured correctly
Troubleshoot network connection to identify any issues
Contact Internet Service Provider (ISP) to check for any outages or problems
Try using alternative DNS servers like Google DNS (8.8.8.8, 8.8.4.4)
Static IP is manually assigned and does not change, while dynamic IP is automatically assigned and can change.
Static IP is manually configured by a network administrator.
Dynamic IP is assigned by a DHCP server automatically.
Static IP is useful for servers, while dynamic IP is common for home networks.
Static IP provides consistency for services like web hosting, while dynamic IP is more flexible for devices that move be
Private IP addresses are reserved for use within a private network and are not routable on the public internet.
Private IP addresses are used within a local network to uniquely identify devices.
They are not accessible from the internet.
Examples of private IP address ranges include 192.168.0.0 - 192.168.255.255 and 10.0.0.0 - 10.255.255.255.
DORA process stands for Discover, Offer, Request, and Acknowledge in DHCP communication.
Discover: Client broadcasts a DHCPDISCOVER message to find available DHCP servers.
Offer: DHCP server responds with a DHCPOFFER message containing IP address lease information.
Request: Client sends a DHCPREQUEST message to request the offered IP address.
Acknowledge: DHCP server sends a DHCPACK message to confirm the IP address lease
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I applied via Campus Placement and was interviewed before Feb 2021. There were 3 interview rounds.
Aptitude round consists Logical reasoning, General Aptitude, Grammar related questions etc. All are moderate level questions.
OOPs is a programming paradigm that uses objects to represent real-world entities. Java is an OOPs language.
OOPs stands for Object-Oriented Programming System
Java is a class-based OOPs language
Encapsulation, Inheritance, Polymorphism, and Abstraction are the four pillars of OOPs
Objects have state and behavior
Java supports interfaces, which allow for multiple inheritance
Example: A car can be represented as an object wit...
Java solves machine dependency by using bytecode and virtual machine.
Java code is compiled into bytecode which is platform-independent
The bytecode is executed by the Java Virtual Machine (JVM) which is platform-specific
JVM translates bytecode into machine code for the specific platform
This allows Java code to run on any platform with a JVM installed
Example: A Java program compiled on Windows can run on Linux or Mac as
I applied via Campus Placement and was interviewed before May 2021. There were 2 interview rounds.
Numerical ability and logical reasoning followed by some coding mcqs
Printing 1 to 100 without for loop
Use recursion to print numbers from 1 to 99
Print 100 outside the recursion
Use a base case to stop recursion at 100
I applied via Campus Placement and was interviewed before Jun 2021. There were 2 interview rounds.
Simple aptitude test
I applied via Company Website and was interviewed before Jul 2021. There were 2 interview rounds.
Attended the codevita competition in final year of college.
I applied via Campus Placement and was interviewed before Aug 2021. There were 2 interview rounds.
It was a basic aptitude test.
I applied via Campus Placement and was interviewed before Jun 2021. There were 2 interview rounds.
I applied via Campus Placement and was interviewed before May 2021. There were 2 interview rounds.
- basic programming on C
I applied via Campus Placement and was interviewed before Mar 2021. There were 2 interview rounds.
OOPs concept in JAVA is a programming paradigm that focuses on objects and their interactions.
OOPs stands for Object-Oriented Programming
It involves the use of classes, objects, inheritance, polymorphism, and encapsulation
Classes are used to define objects and their properties
Objects are instances of classes that can interact with each other
Inheritance allows for the creation of new classes based on existing ones
Polymo...
Java provides Arrays.sort() method to sort an array.
Use Arrays.sort() method to sort an array of strings.
The method sorts the elements in ascending order by default.
To sort in descending order, use Collections.reverseOrder() method.
I applied via Campus Placement and was interviewed before Oct 2021. There were 3 interview rounds.
English reasoning and logical question
based on 1 interview
Interview experience
Desktop Support Engineer
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Engineer- Customer Support
10
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Technical Support Engineer
6
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System Administrator
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Hardware & Networking Engineer
5
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