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Answering questions on Git, Mercurial, Linux/Windows services, Java thread dump, heap dump, and deadlock
Git and Mercurial are both version control systems, but Git is more popular and has a steeper learning curve
Merge conflicts occur when two or more people make changes to the same file at the same time, and can be resolved using tools like Git's merge tool or Mercurial's merge tool
Starting services in Linux can be don...
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I applied via Approached by Company and was interviewed in Apr 2024. There was 1 interview round.
A stack is a data structure that follows the Last In, First Out (LIFO) principle, where elements are added and removed from the top.
Elements are added to the top of the stack and removed from the top as well
Common operations on a stack include push (add element) and pop (remove element)
Examples of stacks include the call stack in programming and a stack of plates
VPC stands for Virtual Private Cloud, it is needed to securely isolate resources within the cloud environment.
VPC allows you to create a private network in the cloud.
It provides control over network settings such as IP address range, subnets, route tables, and network gateways.
VPC helps in securing resources by setting up security groups and network access control lists.
It enables you to connect your on-premises networ...
A load balancer is a device or software that distributes network or application traffic across multiple servers to ensure no single server is overwhelmed.
Balances traffic across multiple servers
Improves performance and reliability
Can be hardware or software based
Examples: F5 BIG-IP, NGINX, HAProxy
IAM stands for Identity and Access Management. Policies are rules that determine who has access to what resources.
IAM is a framework for managing digital identities and controlling access to resources
IAM policies are rules that define the permissions and access levels for different users or groups
IAM policies can be attached to users, groups, or resources to control access
IAM helps organizations ensure that only author...
DNS server is a system that translates domain names to IP addresses, allowing users to access websites using human-readable names.
DNS servers store a database of domain names and their corresponding IP addresses.
When a user enters a domain name in a web browser, the DNS server is queried to find the corresponding IP address.
DNS servers help in the efficient routing of internet traffic by translating domain names to IP ...
Types of lookup tables include direct mapping, associative arrays, and hash tables.
Direct mapping: uses a key to directly access the corresponding value in the table
Associative arrays: store key-value pairs where keys are unique
Hash tables: use a hash function to map keys to values for efficient retrieval
Troubleshooting steps for network issues
Check physical connections (cables, ports)
Verify network settings (IP address, subnet mask)
Restart networking devices (modem, router)
Run network diagnostics tools (ping, traceroute)
Check for software conflicts or firewall issues
I applied via Company Website and was interviewed before Oct 2021. There were 2 interview rounds.
Troubleshooting various technical issues in a support role
For a process hanging, check the system logs and identify the process causing the issue. Use tools like strace or lsof to identify the root cause.
For slow system performance, check CPU, memory, and disk usage. Use tools like top, iostat, and vmstat to identify the bottleneck.
For network latency issues, use tools like ping, traceroute, and tcpdump to identify the...
posted on 2 Jul 2024
posted on 5 Aug 2024
Some common commands for technical support engineers include ping, ipconfig, and tracert.
Ping: Used to test the reachability of a host on an IP network.
Ipconfig: Displays all current TCP/IP network configuration values.
Tracert: Shows the route that packets take to reach a specified destination.
posted on 22 Feb 2024
I applied via Referral and was interviewed in Jan 2024. There were 3 interview rounds.
Versant round where you have to complete some given task given by them in a given time frame
posted on 11 Dec 2024
I applied via Recruitment Consulltant and was interviewed before Jul 2023. There were 3 interview rounds.
I applied via Company Website
based on 2 reviews
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