Friday, August 16, 2019

REST API

REST API works on Request & Response mode, there are two ways REST API can be requested

XML
JSON

RESTFUL --> Representational State of an Object

HTTP Methods

GET
PUT
POST
DELETE

** Before mostly people work with soap request

Friday, June 14, 2019

DevOps

DevOps Engineer:

There is a lot of misconception regarding – Who is a DevOps Engineer? Is he the guy who writes code and is also responsible for the work of a System Engineer? Well! Not exactly. In this post, I will clear all your doubts regarding the roles and responsibilities of a DevOps Engineer.
Go through this Edureka video on “DevOps Engineer” delivered by our DevOps certification expert which will explain what does it take to become a successful DevOps Engineer, and what industries are looking for in a DevOps Professional.

Who Is A DevOps Engineer? | Edureka

But before we move forward let me give you a quick introduction to what is DevOps?

What is DevOps?

DevOps is a software development strategy which bridges the gap between the developers and the IT staff. With DevOps, organizations can release small features very quickly and incorporate the feedback which they receive, very quickly. Following are some other benefits:
  1. Fewer Software Failure
  2. Shortened lead time between fixes
It overcomes all the limitations of the traditional waterfall model. DevOps process involves a lot of development, testing and deployment technologies for developing automated CI/ CD pipelines. Following are some of the famous DevOps tools:
  1. Git and GitHub – Source code management (Version Control System)
  2. Jenkins – Automation server, with plugins built for developing CI/ CD pipelines
  3. Selenium – Automation testing
  4. Docker – Software Containerization Platform
  5. Kubernetes – Container Orchestration tool
  6. Puppet – Configuration Management and Deployment
  7. Chef – Configuration Management and Deployment
  8. Ansible – Configuration Management and Deployment
  9. Nagios – Continuous Monitoring
Now, let us understand who is a DevOps Engineer?

Who is a DevOps Engineer?

DevOps Engineer is somebody who understands the Software Development Lifecycle and has the outright understanding of various automation tools for developing digital pipelines (CI/ CD pipelines).
Course Curriculum

DevOps Certification Training

  • Instructor-led Sessions
  • Real-life Case Studies
  • Assignments
  • Lifetime Access
But the question still endures “Who is a DevOps Engineer?
DevOps Engineer works with developers and the IT staff to oversee the code releases. They are either developers who get interested in deployment and network operations or sysadmins who have a passion for scripting and coding and move into the development side where they can improve the planning of test and deployment.
But what will be your role in a company? Let’s look at the various DevOps Job Roles.

DevOps Job Roles and Responsibilities:

Let me first list down the various roles along with their description.
  1. DevOps Evangelist – The principal officer (leader) responsible for implementing DevOps
  2. Release Manager – The one releasing new features & ensuring post-release product stability
  3. Automation Expert – The guy responsible for achieving automation & orchestration of tools
  4. Software Developer/ Tester – The one who develops the code and tests it
  5. Quality Assurance – The one who ensures the quality of the product confims to its requirement
  6. Security Engineer – The one always monitoring the product’s security & health
DevOps Roles - DevOps Engineer - Edureka
To understand more about the job roles, you can refer to this blog – DevOps Roles
Now that you know who is a DevOps Engineer, and what are the various roles and responsibilities of a DevOps Engineer, let us have a look at what does it take to become a successful DevOps Engineer – DevOps Skills.
We are going to look a DevOps Engineer job description from Rackspace to understand what industries demand from a DevOps Engineer.
Course Curriculum

DevOps Certification Training

DevOps Engineer Skills – DevOps Job Description:

DevOps Engineer Resume - DevOps Engineer - Edureka
Key takeaways from the job description (DevOps Skills Required):
To know more you can read my blog on – DevOps Skills.
Wondering if you have the required DevOps Skills, check out Edureka’s DevOps Course Content 
Well, I am pretty sure a lot of you must be wondering what the salary of a DevOps Engineer is, let me address that doubt of yours in the next section.

DevOps Engineer Salary:


Well, DevOps Engineer is one of the most highly paid job roles in the world. Obviously, salary depends on multiple factors like – company, skills, geography etc.

Friday, February 1, 2019

WHERE TO FIND THE CORRESPONDING 5G SPECIFICATIONS

A list of all 5G related specs (incl. core network and system aspects) is provided in 3GPP TR 21.205 or use this URL on the 3GPP website.

Radio related specifications addressing only NR: 38 series specifications.
Radio related specifications addressing only LTE: 36 series specifications.
Radio related specifications addressing aspects affecting both LTE and NR: 37 series specifications.
Service requirements for next generation new services and markets: 3GPP TS 22.261.
System Architecture for the 5G system (stage 2): 3GPP TS 23.501.
Procedures for the 5G System (stage 2): 3GPP TS 23.502.
NR; NR and NG-RAN Overall Description (stage 2): 3GPP TS 38.300.
NR; Multi-connectivity; Overall description (stage 2): 3GPP TS 37.340.
NG-RAN; Architecture description: 3GPP TS 38.401.

Wednesday, January 23, 2019

Common Interview Questions

Common Interview Questions & My Sample Answer


Q: Can you describe a deal that you have worked on that you are proud of, and the role you played in that deal.   



I worked on many crucial multi-million projects throughout my career. I really enjoyed the project with clear high-level goals and then try to create a plan with milestones.

My current job involves a lot of vendor negotiations both technical and financial and will like to narrate one of the deals in the recent past. 

During capex preparation phase almost a couple of year back, I received a business requirement that includes 3.2 Million M2M connections along with 1 Million 5G subscriptions. The budget was reserved, however, allocated budget was far more less than the required due to Management level cuts and I’ve to manage within that! Considering confidentially, there is not much I can reveal for my current employer.

Network requirements, when checked with an existing vendor, found much more price and there was no other option left, except to cut the scope. Cutting expansion scope means impacting organization business goal and was the worst option.

Hence a strategy was placed and I make it open tendering, keeping in mind that bring new node could be even much more higher in prices. Eventually what happened is, the New vendors were dying to fill the space in this operator, while existing became insecure all together.

Stressed financial negotiation was being undertaken with both existing and new vendors and I finally was able to procure this capacity with the existing vendor. The price after negotiation was even beyond imagination and as an operator, we never stretch to that level.

At that moment I was too much appreciated even by higher management and project was market as one of the benchmark project conduct so far. Proud moments for me, since I was leading this project from both design & procurement sides