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I applied via Campus Placement and was interviewed in Feb 2021. There were 3 interview rounds.
Data structure is a way of organizing and storing data in a computer so that it can be accessed and used efficiently.
Data structures can be classified into two types: primitive and non-primitive.
Primitive data structures include integer, float, character, and boolean.
Non-primitive data structures include arrays, linked lists, trees, graphs, and hash tables.
The choice of data structure depends on the type of data, the o...
Eclipse IDE is an open-source integrated development environment used for Java development.
Eclipse provides a user-friendly interface for coding, debugging, and testing Java applications.
It supports various programming languages and frameworks such as C++, Python, and PHP.
Eclipse also has a vast library of plugins that can be used to enhance its functionality.
It is widely used by developers and is highly customizable t
Elements are sorted based on the sorting algorithm used and the data type of the elements.
Sorting algorithms like bubble sort, quick sort, merge sort, etc. are used to sort elements.
Elements can be sorted in ascending or descending order.
Data type of elements affects the sorting order. For example, strings are sorted alphabetically.
Custom sorting can be implemented using comparator functions.
Join is a SQL operation that combines rows from two or more tables based on a related column between them.
Types of join include inner join, left join, right join, and full outer join
Inner join returns only the matching rows from both tables
Left join returns all rows from the left table and matching rows from the right table
Right join returns all rows from the right table and matching rows from the left table
Full outer ...
A data structure that consists of a sequence of nodes, each containing a reference to the next node.
Link list is a linear data structure.
It is made up of nodes that contain data and a reference to the next node.
It can be singly linked or doubly linked.
Example: Singly linked list - 1 -> 2 -> 3 -> null
Example: Doubly linked list - null <- 1 <-> 2 <-> 3 -> null
C is a procedural language while Java is an object-oriented language.
C is compiled while Java is interpreted
C has pointers while Java does not
Java has automatic garbage collection while C does not
Java is platform-independent while C is not
Java has built-in support for multithreading while C does not
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I applied via Campus Placement and was interviewed in Jan 2016. There were 3 interview rounds.
Yes
Knowledge of network protocols and architectures
Understanding of data structures and algorithms
Experience with network troubleshooting and analysis
Familiarity with network security and encryption
Proficiency in network programming and socket programming
The test went well, I was able to complete all the tasks within the given time frame.
I prepared well for the test by reviewing relevant materials
I managed my time effectively during the test
I was able to solve all the problems and complete all the tasks
I double-checked my work to ensure accuracy
I applied via Referral
Program to print binary tree elements in spiral order
Use two stacks to keep track of nodes at odd and even levels
Push nodes from left to right in odd level stack and right to left in even level stack
Pop nodes from the stack alternatively and print them
Repeat until both stacks are empty
Entering a URL in the browser triggers a series of events to retrieve and display the requested webpage.
The browser checks the cache for a previously stored copy of the webpage
If not found, the browser sends a request to the DNS server to resolve the domain name to an IP address
The browser then sends a request to the web server at the IP address for the webpage
The web server responds with the requested webpage
The brows...
MAC addresses are required for identifying devices on a local network, while IP addresses are used for identifying devices on a global network.
MAC addresses are used for communication within a local network
IP addresses are used for communication across different networks
MAC addresses are assigned by the manufacturer and cannot be changed
IP addresses can be assigned dynamically or statically
MAC addresses are used in the...
Developed a web application for tracking inventory and sales data
Used React.js for front-end development
Implemented RESTful APIs using Node.js and Express for back-end
Utilized MongoDB for database management
Integrated authentication and authorization features for secure access
Designed user-friendly interface with responsive design
An ArrayList is a dynamic array in Java that can grow or shrink in size during runtime.
ArrayList is a class in Java's Collection framework.
It implements the List interface and allows duplicate elements.
Elements can be added or removed using methods like add(), remove(), etc.
It can also be sorted using the sort() method.
Example: ArrayList
names.add("John"); names.add("Mary"); names.remove(0);
ArrayList is a resizable array while LinkedList is a doubly linked list.
ArrayList is faster for accessing elements while LinkedList is faster for adding or removing elements.
ArrayList uses contiguous memory while LinkedList uses non-contiguous memory.
ArrayList is better for random access while LinkedList is better for sequential access.
Example: ArrayList - List
Java is not a pure OO language due to primitive types not being objects.
Primitive types like int, boolean, etc. are not objects in Java
They do not have methods or inheritance like objects do
This violates the principle of everything being an object in pure OO languages
Wrapper classes like Integer, Boolean, etc. were introduced to provide object-like behavior for primitives
Object-oriented languages support inheritance and polymorphism, while object-based languages do not.
Object-oriented languages allow for the creation of classes and objects, and support inheritance and polymorphism.
Object-based languages only support objects, but do not have the concept of classes or inheritance.
Examples of object-oriented languages include Java, C++, and Python, while JavaScript is an example of an obj
Inheritance is a way to create new classes based on existing ones. Abstraction is a way to hide implementation details.
Inheritance allows a subclass to inherit properties and methods from a superclass.
Abstraction allows a class to provide a simplified interface to its users while hiding its implementation details.
For example, a Car class can inherit properties and methods from a Vehicle class, while also implementing i...
I applied via Referral
No, as a software engineer, you may not have the necessary experience or skills to work as an IT manager.
Software engineers typically focus on coding and technical aspects, while IT managers are responsible for overseeing projects, teams, and budgets.
IT managers need strong leadership, communication, and decision-making skills, which may not be the primary focus of a software engineer.
Consider gaining experience in pro...
OSI stack has 7 layers that define how data is transmitted over a network.
OSI stands for Open Systems Interconnection
Each layer has a specific function and communicates with adjacent layers
Layers are: Physical, Data Link, Network, Transport, Session, Presentation, Application
A router is needed to connect two computers in different networks or to share internet connection.
When two computers are in different networks, a router is needed to connect them.
A router can also be used to share internet connection between multiple devices.
Routers can provide additional security features like firewall and VPN.
Examples of routers include Cisco, Netgear, and TP-Link.
IPv4 has 32 bits and IPv6 has 128 bits.
IPv4 addresses are in the format of xxx.xxx.xxx.xxx where each xxx is an 8-bit number.
IPv6 addresses are in the format of xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx where each xxxx is a 16-bit number.
IPv6 addresses allow for a much larger number of unique addresses than IPv4.
IPv6 is needed due to the exhaustion of IPv4 addresses and the need for more unique IP addresses.
IPv6 provides a significantly larger address space compared to IPv4.
It allows for the allocation of unique IP addresses to every device connected to the internet.
IPv6 supports improved security features and better network performance.
It enables the growth of Internet of Things (IoT) devices and services.
Transitioning to IPv...
A /24 address can have 256 clients. Network address is the first IP and broadcast address is the last IP.
A /24 address has 256 IP addresses
The network address is the first IP in the range
The broadcast address is the last IP in the range
Anycast, unicast, and multicast are different ways of routing network traffic.
Unicast is one-to-one communication between a sender and a receiver.
Anycast is one-to-nearest communication where the sender sends a message to the nearest receiver.
Multicast is one-to-many communication where the sender sends a message to a group of receivers.
Anycast is used for load balancing and finding the nearest server.
Unicast is used f...
Virtual memory is a memory management technique that allows a computer to use more memory than physically available.
Virtual memory is created by using hard disk space as an extension of RAM.
It allows running more programs than the physical memory can handle.
The size of virtual memory is typically larger than the size of main memory.
Virtual memory is divided into pages, which are swapped in and out of main memory as nee...
I rate myself 8 in C and 7 in web technologies.
I have extensive experience in C programming and have worked on multiple projects using it.
In web technologies, I have a good understanding of HTML, CSS, and JavaScript, but there is always room for improvement.
I am constantly learning and improving my skills in both areas.
My strengths include problem-solving skills, attention to detail, and strong programming abilities.
Strong problem-solving skills - able to analyze complex problems and come up with effective solutions
Attention to detail - meticulous in writing code and ensuring it is error-free
Strong programming abilities - proficient in multiple programming languages such as Java, Python, and C++
I have the skills, experience, and passion to excel in this role.
I have a strong background in software development, with experience in multiple programming languages and frameworks.
I am a quick learner and enjoy tackling new challenges.
I am a team player and enjoy collaborating with others to achieve common goals.
I am passionate about software engineering and am always looking for ways to improve my skills and knowled...
I chose your company because of its reputation for innovation and its commitment to employee growth.
Your company has a strong reputation for innovation in the industry.
I was impressed by the emphasis on employee growth and development.
I believe that your company's values align with my own personal values.
I was excited about the opportunity to work with a talented team of engineers.
Your company's mission and vision reso
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