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posted on 28 Jul 2020
I applied via Naukri.com and was interviewed before Jul 2019. There were 4 interview rounds.
DHCP stands for Dynamic Host Configuration Protocol. It is a network protocol that automatically assigns IP addresses to devices on a network.
DHCP is used to manage and allocate IP addresses in a network.
It allows devices to obtain IP addresses dynamically instead of manually configuring them.
DHCP also provides additional network configuration information like subnet mask, default gateway, and DNS server addresses.
It u...
DNS stands for Domain Name System. It is a decentralized naming system that translates domain names into IP addresses.
DNS is used to resolve domain names to their corresponding IP addresses.
It helps in the efficient routing of internet traffic by translating human-readable domain names into machine-readable IP addresses.
DNS servers store DNS records that contain information about domain names and their associated IP ad...
To check internet connection, use ping command or check network settings.
Use ping command to check connectivity to a specific website or IP address
Check network settings to ensure correct IP address and DNS settings
Try resetting modem or router
Check for any network outages or maintenance in the area
A router is a networking device that forwards data packets between computer networks.
Routers operate at the network layer of the OSI model.
They use routing tables to determine the best path for data to travel.
Routers can connect multiple networks together, such as a home network to the internet.
They can also provide security by blocking unwanted traffic.
Examples of routers include Cisco, Netgear, and TP-Link.
A switch is a networking device that connects devices together on a computer network.
Switches operate at the data link layer of the OSI model.
They use MAC addresses to forward data between devices.
Switches can improve network performance by reducing network congestion.
Examples of switches include Cisco Catalyst and Juniper EX Series switches.
A router is a networking device that forwards data packets between computer networks.
Routers operate at the network layer of the OSI model.
They use routing tables to determine the best path for data to travel.
Routers can connect multiple networks together, such as a home network and the internet.
They can also provide security by blocking unwanted traffic.
Routers can be wired or wireless, and can have multiple ports for
I will check the network connection and troubleshoot the issue.
Check if other devices are also affected
Restart the router/modem
Check for any loose cables
Ping the default gateway
Contact the ISP if necessary
Routing is the process of selecting the best path for network traffic to travel from one network to another.
Routing is a crucial function of network communication.
It involves determining the most efficient path for data to travel.
Routing protocols such as OSPF and BGP are used to facilitate this process.
Routing tables are used to store information about network topology and available paths.
Examples of routing devices i
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I applied via Naukri.com
I applied via Naukri.com and was interviewed in Jan 2023. There were 4 interview rounds.
All about profit, percentages,desicion making, English grammar etc
I applied via Referral and was interviewed before May 2023. There was 1 interview round.
I applied via Approached by Company and was interviewed before Apr 2021. There were 3 interview rounds.
I applied via Naukri.com and was interviewed before Mar 2020. There were 4 interview rounds.
Hashtable is synchronized while hashmap is not.
Hashtable is thread-safe while hashmap is not.
Hashtable does not allow null keys or values while hashmap allows one null key and multiple null values.
Hashtable is slower than hashmap due to synchronization.
Hashtable is a legacy class while hashmap is a newer implementation.
Hashmap is not thread-safe while Concurrent Hashmap is thread-safe.
Hashmap is not suitable for multi-threaded environments as it can lead to race conditions and data inconsistencies.
Concurrent Hashmap allows multiple threads to access and modify the map concurrently without any data inconsistencies.
Concurrent Hashmap uses a technique called lock striping to achieve thread-safety.
Concurrent Hashmap is slower than Hashma...
posted on 16 Apr 2021
I applied via Referral and was interviewed in Oct 2020. There was 1 interview round.
posted on 16 Apr 2021
Implement merge sort and find kth largest element in an array.
Merge sort is a divide and conquer algorithm that recursively divides the array into two halves, sorts them and then merges them.
Kth largest element can be found using quick select algorithm or by sorting the array and returning the kth element from the end.
Merge sort has a time complexity of O(nlogn) and space complexity of O(n).
Quick select has a time comp...
I applied via Campus Placement and was interviewed in May 2021. There was 1 interview round.
I applied via Naukri.com and was interviewed in Mar 2021. There were 3 interview rounds.
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