Wizzy Learner

  1. Identify the key aspects for a successful service discovery solution Answer: All the options mentioned 2. Service Discovery can perform the following for the services Answer: All the options mentioned 3. Which of the registration patterns is best suited for complex architecture Answer: Third party registration pattern 4. Identify the right service registry solutions that supports discovery Answer: Zookeeper 5. In _ pattern, clients connect with the backend services directly Answer: Client side discovery pattern 6. _ supports load balancing in addition to service discovery Answer: Ribbon 7. Is it possible for any service discovery tool to satisfy all the three guarantees (Consistency, Availability, Partition) in a distributed environment? Answer: No. Only two of the guarantees can be achieved 8. In distributed systems, to service any Read / Write request, a leader node is mandatory. Is this statement correct Answer: No. Leader node is required for only for write request...

  1. Agile development & Deployment is difficult in case of __ __ Answer: Monolithic 2. Software built as microservices can, by definition, be broken down into multiple component services ? Answer: True 3. Separating components with conflicting resource requirements falls under the bucket of _ Answer: Microservices 4. Complexity of developing, testing & deploying distributed system, Handling partial failures account to disadvantages of Answer: Microservices 5. Benefits of Microservices include - Answer: All the options 6. Decomposition of Microservices based on 2 categories namely Answer: Business capability , Subdomain 7. Simple to Develop, Test, Deploy, Scale represents __ __ Answer: Monolithic 8. Is Microservice is considered as subset of SOA ? Answer: True 9. The 3Cs of Microservices includes all these except Answer: Control 10. Microservice Architecture adapts following concepts Answer: All the options 11. The client expects a timely response from the servic...

  1.  An essential component of the Central Limit Theorem is that Answer: All the options 2.  A failing student is passed by an examiner, it is an example of Answer: Type-II error/ Unbiased decision 3.  The dividing point between the region where the null hypothesis is rejected and the region where it is not rejected is said to be Answer: critical value 4.  An advertising agency wants to test the hypothesis that the proportion of adults in a country who read a Sunday Magazine is 25 percent. The null hypothesis is that the proportion reading the Sunday Magazine is: Answer: Equal to 25% 5.  In which examples could binomial distribution be used? Answer: Modelling the number of failures in a trial 6.  Any hypothesis which is tested for the purpose of rejection under the assumption that it is true is called? Answer: Null hypothesis 7.  A statistician calculates a 95% confidence interval for Mean when Standard Deviation is known. The confidence interval...

  1. Digital Marketing helps to improve __ ________ Answer: All the options mentioned 2. Paid Search Marketing is about Bidding and Buying relevant keywords. Answer: True 3. Retargeting platforms enable advertisers to _____ Answer: All the options mentioned 4. Which of the following aims at influencing users who have already begun their research on sites like Google, but not necessary that they have visited a brand site. Answer: Search Retargeting 5. Customizing ads to people who had earlier visited the site is ___ Answer: Remarketing 6. Real time Biding is a form of Programmatic Buying. Answer: True 7. Facebook Adverts is an advertising platform that can deliver ads on ___ Answer: Both Facebook and Instagram 8. Google Ad Auction rewards advertisers with _ Answer: High Ad Rank 9. Which of the following design approaches help in building sites that are optimized for varied screen sizes? Answer: Responsive Web Design 10. Which of the following capabilities are offered by We...

  1. Presence of _ Answer: is must is to proceed ahead with installation of grunt Node.js 2. Which takes care of performing the repetitive mundane work in Grunt.js? Answer: TaskRunner 3. Registering of tasks happens within Answer: Gruntfile 4. The 3 main actions to be performed in gruntfile include Answer: Configurations , loading plug-ins, Register tasks 5. Grunt.js helps with simplification through automation. Is this true or false ? Answer: True 6. Grunt does not allow users to add their custom developed plug-ins and publish them to npm. Answer: False 7. Which of these is officially maintained grunt plug in? Answer: contrib-less 8. The number of plug-ins available in grunt is Answer: around 6000+ 9. CSS with superpowers' : This refers to _ Answer: SASS 10. Which plug-in assists with cleaning of the unwanted folders & files Answer: grunt-contrib-clean 11. The grunt plug-in to remove any unwanted CSS within project is Answer: grunt-uncss 12. After installing any pl...

  1. Docker registry is a Answer: Storage house for the Docker images 2. Image from the host machine can be deleted by using Answer: docker rmi imageName 3. How will you check the version of installed Docker? Answer: docker –version 4. Which sub-command helps you to verify the downloaded images? Answer: docker images   5. Which sub command is used to download images from a registry? Answer: docker pull 6. Which of the following is not a Docker Registry? Answer: none 7. Application running in a VM is hidden from the host OS with the help of Hypervisor/ VMM. Answer: true 8. Why Docker Networking is needed? Answer: small 9. Which of the following is not a component of Docker Engine? Answer: none 10. Docker hub images can be accessed at Answer: docker 11. Container can alter host filesystem without any restriction. Answer: true 12. Which of the following statements is true about containerization Answer: all 13. Docker Daemon and Docker client use same binary. Answer: ...

 1. Manager node can also act as a worker node Answer: true 2. Swarm task is Answer: Unidirectional 3. Worker Node is responsible for container Orchestration Answer: False 4. Docker swarm command to inspect the new swarm service created Answer: docker service inspect <service-name> 5. Docker swarm command to remove a service Answer: docker service rm <service-name> 6. Which is not a correct type of service deployments for Docker Swarm Answer: Series 7. bridge network that connects hosts ports to container ports in overlay network. Answer: docker bridge network 8. Swarm task status when the task is initialized Answer: New 9. $docker service create --name Test --secret secret1 redis. Which of the following is incorrect w.r.t the output for this command Answer: create a service with secret for redis image 10. in the worker node executes the task on behalf of the worker node Answer: Executor 11. Docker command to list the secrets Answer: docker secret ls 12. Global service ...