AWS Training in Bangalore

1.What kind of network performance parameters can you expect when you launch instances in cluster placement group? The network performance depends on the instance type and network performance specification, if launched in a placement group you can expect up to 10 Gbps in a single-flow, 20 Gbps in multiflow i.e full duplex Network traffic outside the placement group will be limited to 5 Gbps(full duplex). 2.To deploy a 4 node cluster of Hadoop in  AWS  which instance type can be used? First let’s understand what actually happens in a Hadoop cluster, the Hadoop cluster follows a master slave concept. The master machine processes all the data, slave machines store the data and act as data nodes. Since all the storage happens at the slave, a higher capacity hard disk would be recommended and since master does all the processing, a higher RAM and a much better CPU is required. Therefore, you can select the configuration of your machine depending on your workload. For e.g...

Q1). What is the MAIN benefit of designing tests early in the life cycle? Ans:   It helps prevent defects from being introduced into the code. Q2). What is risk-based testing? Ans:   Risk-based Testing is the term used for an approach to creating a test strategy that is based on prioritizing tests by risk. The basis of the approach is a detailed risk analysis and prioritizing of risks by risk level. Tests to address each risk are then specified, starting with the highest risk first. Q3). A wholesaler sells printer cartridges. The minimum order quantity is 5. There is a 20% discount for orders of 100 or more printer cartridges. You have been asked to prepare test cases using various values for the number of printer cartridges ordered. Which of the following groups contain three test inputs that would be generated using Boundary Value Analysis? Ans:   4, 5, 99 Q4). What is the KEY difference between preventative and reactive approaches to testing? ...

Q1). What is the difference between Functional Requirement and Non-Functional Requirement? Ans:   The Functional Requirement specifies how the system or application SHOULD DO where in Non Functional Requirement it specifies how the system or application SHOULD BE. Some functional Requirements are Authentication Business rules Historical Data Legal and Regulatory Requirements External Interfaces Some Non-Functional Requirements are Performance Reliability Security Recovery Data Integrity Usability Q2). How Severity and Priority are related to each other? Ans: Severity- tells the seriousness/depth of the bug where as Priority- tells which bug should rectify first. Severity- Application point of view Priority- User point of view Q3). Explain the different types of Severity? Ans: User Interface Defect- Low Boundary Related Defects- Medium Error Handling Defects- Medium Calculation Defects- High Interpreting Data Defects- High Hardware Failure...

1. What is JSON? How would convert JSON data into Python data? JSON – stands for JavaScript Object Notation. It is a popular data format for storing data in NoSQL databases. Generally JSON is built on 2 structures.  A collection of <name, value> pairs.  An ordered list of values. As Python supports JSON parsers, JSON-based data is actually represented as a dictionary in Python. You can convert json data into python using load() of json module.  2. How are the functions help() and dir() different? These are the two functions that are accessible from the Python Interpreter. These two functions are used for viewing a consolidated dump of built-in functions. help() – it will display the documentation string. It is used to see the help related to modules, keywords, attributes, etc. To view the help related to string datatype, just execute a statement help(str) – it will display the documentation for ‘str, module. ◦ Eg: >>>help(str) or >...