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In this article, we will learn how to perform "Cloud Testing." To grasp this, we must first grasp the concept of Cloud Computing. This article examines Cloud Computing, Cloud Testing, and the major challenges that arise while testing on the cloud.Introduction to Cloud ComputingA new phrase and technique known as "virtualization" was introduced to the business few years ago. Virtualization, the notion of sharing computer resources across many operating systems to increase scalability, save capital costs, and simplify IT infrastructure administration, became the backbone of several enterprises with the advent of virtualization.In recent years, cloud computing has witnessed a rapid ... Read More
Vulnerability TestingVulnerability Testing, also known as Vulnerability Assessment, is a method of assessing security risks in software systems in order to decrease the likelihood of attacks. Vulnerability testing is used to reduce the chances of intruders/hackers gaining unauthorized access to systems. It is based on the Vulnerability Assessment and Penetration Testing (VAPT) or VAPT testing technique.Other error or weakness in the system's security processes, design, implementation, or any internal control that might lead to a violation of the system's security policy is referred to as a vulnerability.Process of Vulnerability TestingTo detect system vulnerabilities, use this step-by-step Vulnerability Assessment Process.VAPT (Vulnerability ... Read More
Selection development life cycle (SLDC) is a process utilised by the software industry for designing, developing and testing high quality software. The SDLC intent to produce a high-quality software that meets or outreaches customer expectancy, that meets completion within times and also less costing.SDLC is the short form of Software Development Life Cycle.It is also known as Software Development Process.Software development Life Cycle is a framework laying out task performed at each step in the software development process.Software life cycle processes standard is ISO/IEC 12207 which is internationally recognised. It focuses to be the standard that characterises all the tasks ... Read More
SalesforceSalesforce is the first cloud-based Customer Relationship Management System (CRM system). It was first developed by Marc Benioff and Parker Harris in 1999. The aim of developing this system was to help the users sell, service, market, analyse and connect with their customers easily and at an affordable price.Salesforce provides us with the fastest path from idea to the real app or software. It helps us focus on our product using the Salesforce tools, instead of building the tools and other infrastructure on our own. Therefore, it saves us years of time and a lot of money.The traditional CRM systems ... Read More
SAFe (Scaled Agile Framework)SAFe is an open-source knowledge base that enables to apply lean and agile practices at the enterprise level. It offers simple and lightweight features to develop software. SAFe is a set of organizations and workflow patterns that guide enterprises in scaling lean and agile practices. SAFe is divided under three components; team, Program, and Portfolio.Safe framework helps team in −Implementing lean and agile processes for software and systems at the enterprise levelBased on lean-agile principlesGuides to work at the enterprise portfolio, value stream, program and team.Designed to meet the requirements of the stakeholders.It was developed in the ... Read More
A handle is a substring that connects a right-hand side of the production rule in the grammar and whose reduction to the non-terminal on the left-hand side of that grammar rule is a step along with the reverse of a rightmost derivation.Finding Handling at Each StepHandles can be found by the following process −It can scan the input string from left to right until first .> is encountered.It can scan backward until
For terminals a and b in an Operator Grammar we can have the following precedence Relations −a =. b(Equal Precedence) − If R.H.S of production is of form α a β b γ, where β can be ε or single non-terminal then a =. b.Here, α and γ can be any strings.Example − In grammar, S → m A c B e dOn Comparing mAcBed with αaβbγα = mA, a = c, β = B, b = e, γ = dΑAβbγmACBedSo, comparing a with c and b with e we get c =.e.We can also make a different combination for ... Read More
LEADINGIf production is of form A → aα or A → Ba α where B is Non-terminal, and α can be any string, then the first terminal symbol on R.H.S isLeading(A) = {a}If production is of form A → Bα, if a is in LEADING (B), then a will also be in LEADING (A).TRAILINGIf production is of form A→ αa or A → αaB where B is Non-terminal, and α can be any string then, TRAILING (A) = {a}If production is of form A → αB. If a is in TRAILING (B), then a will be in TRAILING (A).Algorithm to ... Read More
The Immediate Timer class is used for scheduling the functions that we need to call at a certain period of time in future. These tasks can be scheduled by using the Immediate timer class and using the setImmediate() method. The Immediate class has an object for setImmediate() method and it passes the same object to clearImmediate() in case it wants to cancel the scheduled timer function.Given below are the Immediate class ref objects −1. immediate.ref()This method is called if the immediate object is active for too long and did not exit.Syntaximmediate.ref()2. immediate.unref()This object keeps the event loop ‘active’ until False ... Read More
The diffieHellman.getPublicKey() returns the Diffie-Hellman generated public key that is specified by the encoding passed. It will return a string in case the encoding is passed, else it will return a buffer.SyntaxdiffieHellman.getPublicKey([encoding])Parametersencoding – This parameter specifies the encoding of the return value.Example 1Create a file with the name "publicKey.js" and copy the following code snippet. After creating the file, use the command "node publicKey.js" to run this code.// diffieHellman.getPublicKey() Demo Example // Importing the crypto module const crypto = require('crypto') // Initializing the diffieHellman const dh = crypto.createDiffieHellman(512); // Taking default publicKey as null let publicKey = ... Read More