DevOps Interview Questions & Answers

devops

What are the most widely used DevOps tools? The most popular DevOps tools include: Selenium Puppet Chef Git Jenkins Ansible Docker Which phases of DevOps are there? The following are the stages of the DevOps lifecycle: Plan – A plan for the type of application that needs to be developed should be created first. It’s …

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Front End Developer Interview Questions & Answers

The creation of web pages and user interfaces for web applications falls under the purview of frontend development. In other words, frontend developers are responsible for everything you see when you launch a website, online application, or mobile app on your computer or mobile device. Today, frontend developers are in high demand. Many organizations are …

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NAMD v3 and NVIDIA A100 GPUs can deliver up to 9X the throughput

a100 gpu namd simulation

NVIDIA GPUs and CUDA grew substantially in performance and capabilities during the early stages of CUDA support in NAMD. One of the first CUDA-accelerated applications was NAMD, a widely used parallel molecular dynamics simulation engine. For more details, read Using Graphics Processors to Accelerate Molecular Modeling Applications and Adapting a Message-Driven Parallel Application to GPU-Accelerated …

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AI being used to improve the surgical precision of an autonomous robot

robot surgery

For the first time ever in medicine, a robot operated on a patient during a laparoscopic procedure without the assistance of a surgeon’s hand. An article in Science Robotics describes the development of an improved Smart Tissue Autonomous Robot (STAR) that was successful in completing a difficult task on a pig’s soft tissue. An important …

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Simulation of a living cell by RTX A5000 A100 GPUs

minimal cell cutaway

Every live cell is a bustling microcosm with thousands of components that are responsible for energy production, protein synthesis, gene transcription, and other functions. Scientists at the University of Illinois at Urbana-Champaign have created a completely dynamic model that mimics the activity of a living cell by simulating these physical and chemical features at the …

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How to install NVIDIA Tesla drivers on Linux

Nvidia CUDA

This section includes instructions for installing the NVIDIA driver on CentOS 8 using the package manager. Install additional dependencies that are required for installing the NVIDIA drivers. # dnf install -y tar bzip2 make automake gcc gcc-c++ pciutils elfutils-libelf-devel libglvnd-devel Enable the PowerTools repo and set up the external dependency on EPEL for DKMS. #dnf …

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Nginx: Resolver does not refresh after DNS update

nginx

Use a variable for the domain name; this way allows you to customize how frequently NGINX recursively resolves the domain name. resolver 10.0.0.4 valid=20s; server {location / {set $backend_servers backend.seimaxim.com;proxy_pass http://$backend_servers:8080;}} When a variable is used in the proxy_pass directive to define the domain name, NGINX reresolves the domain name when the TTL expires. To …

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How should I configure OCSP Stapling in NGINX

oscp stapling

OCSP is a feature that helps clients avoid exposing request information to OCSP servers and reduces the performance cost of OCSP validation by clients. The TLS Certificate Status Request extension is a standard for checking the revocation status of X.509 digital certificates. It is formally known as the Online Certificate Status Protocol (OCSP) stapling. It …

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How to force redirection from HTTP to HTTPS in NGINX

nginx

To redirect in NGINX, you only require the return directive and the 301 (Moved Permanently) status. Redirecting HTTP to HTTPS per domain server {listen 80;server_name yourdomain.com www.yourdomain.com;return 301 https://yourdomain.com$request_uri;} Redirect any domain from HTTP to HTTPS. server {listen 80 default_server;listen [::]:80 default_server;server_name _;return 301 https://$host$request_uri;} Redirecting to a different domain: server {listen 80;server_name yourdomain.com;return 301 …

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