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Interview Questions and Answers - Order By Rating

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 Q31. How can we protect an application from an XSS attack ?Security
Ans. By properly encoding data while persisting as well as retrieval.

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   Like         Discuss         Correct / Improve     xss attack  web security     Asked in 3 Companies


 Q32. how would you build application stack using Cloud Formation ?
Amazon Web Services (AWS)
 This question was recently asked at 'Strategic Solutions'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     aws cloud formation     Asked in 1 Companies


 Q33. How would you secure resources in Cloud ?Cloud Computing
 This question was recently asked at 'CBS Interactive'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     Google Cloud Platform (GCP)     Asked in 1 Companies


 Q34. What is an AWS placement groupAmazon Web Services (AWS)
Ans. It is a logical grouping of instance with a single availability zone to prevent latency.

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   Like         Discuss         Correct / Improve     aws placement group     Asked in 1 Companies


 Q35. What are some GCP Billing and Budgeting services ?Google Cloud Platform (GCP)
Ans. Budgets and Alerts
Reports
Quotas

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   Like         Discuss         Correct / Improve     gcp billing


 Q36. How On demand Self Service helps saving cost ?Cloud Computing
Ans. On Demand service restricts cost by paying only for the use and Self Service saves cost by reducing intermediary human resource cost.

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   Like         Discuss         Correct / Improve     onDemand infrastructure  Google Cloud Platform (GCP)


 Q37. How Resource Pooling helps saving cost ?Cloud Computing
Ans. With resource pooling and Pay as per use , Bigger companies like Google and Amazon can buy Large physical hardware and employ economy of scale and hence resulting in cost saving for customers.

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   Like         Discuss         Correct / Improve     Google Cloud Platform (GCP)


 Q38. What is the difference between Billing Alerts and Budget Quotas in GCP ?Google Cloud Platform (GCP)
Ans. Alerts only let customer knows of any excessive usage whereas Quota restricts the usage beyond a certain point.

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   Like         Discuss         Correct / Improve     GCP Billing


 Q39. What are the different types of Services GCP provides ?Google Cloud Platform (GCP)
Ans. Compute
Network
Storage
Big Data
Machine Learning

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 Q40. Is Google App Engine , IAAS, PAAS or SAAS ?Google Cloud Platform (GCP)
Ans. It's PAAS ( Platform as a service )

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   Like         Discuss         Correct / Improve     Google App Engine


 Q41. How does cloud computing helps saves cost ?Cloud Computing
Ans. Cloud computing helps saving overall cost for infrastructure and service usage through following -

1. On demand Services and elasticity - You only pay for what you use. Less Ideal time.

2. Resource Pooling

3. Self Service - Less involvement of human resources

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   Like         Discuss         Correct / Improve     Google Cloud Platform (GCP)  Amazon Web Service (AWS


 Q42. Explain Identity management in GCP ?Google Cloud Platform (GCP)
Ans. IAM is used to define the level of access to GCP services

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   Like         Discuss         Correct / Improve     GCP


 Q43. Explain Virtual machines in Google Cloud Platform.Google Cloud Platform (GCP)
Ans. Virtual machines are IAAS in GCP which can called Compute Engine

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   Like         Discuss         Correct / Improve     Google cloud Platform  GCP


 Q44. Can you explain integration between Spring and Hibernate ?Hibernate
 This question was recently asked at 'HCL Technologies'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     Spring framework  Hibernate Orm     Asked in 1 Companies


 Q45. Have you ever worked on Google Cloud Platform ?Google Cloud Platform
 This question is still unanswered. Can you please provide an answer.


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 Q46. differences between drop , delete and truncateDatabase
 This question was recently asked at 'HCL Technologies'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q47. How to delete a node from linked list if u do not have head and only have a pointer to the element which has to be removed ?Data Structure
 This question was recently asked at 'LifCare'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q48. How many threads can access a concurrent hashmap when the hashcode is overridden and always returns a zero.Data Structure
Ans. The impact of both cases (fixed hashcode or random hashcode for keys) will have same result and that is "unexpected behavior". The very basic need of hashcode in HashMap is to identify the bucket location where to put the key-value pair, and from where it has to be retrieved.

If the hashcode of key object changes every time, the exact location of key-value pair will be calculated different, every time. This way, one object stored in HashMap will be lost forever and there will be very minimum possibility to get it back from map.

For this same reason, key are suggested to be immutable, so that they return a unique and same hashcode each time requested on same key object.

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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q49. Explain memory allocation and deallocation.C++
 This question was recently asked at 'Informatica'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q50. What are reference variables in cC++
 This question was recently asked at 'Informatica'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q51. What is size of structure in c ?C++
 This question was recently asked at 'Informatica'.This question is still unanswered. Can you please provide an answer.


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 Q52. what are system callsOperating System
 This question was recently asked at 'Informatica'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q53. Differentiate osi and tcp/ip models and describe themNetworking
 This question was recently asked at 'Informatica'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q54. How to sort an ArrayList of objectsData Structure
Ans. Using Collections.sort()

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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q55. What is the O notation for the ArrayList and List? And which one would you choose to insert item in the middle?Data Structure
 This question was recently asked at 'ExpertSoft'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q56. What is a composite primary key and foreign key ?Database
 This question was recently asked at 'jibe development services'.This question is still unanswered. Can you please provide an answer.


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 Q57. What is SNMP ?Networking
Ans. SNMP or Simple Network Management protocol is an application layer protocol for exchanging management information between network devices.


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   Like         Discuss         Correct / Improve          Asked in 15 Companies


 Q58. If you are given choice to either load object eagerly or lazily , which one would you use in case of singleton pattern ?Design
Ans. I would choose Eager as the cost for 1 additional object is too minute for any such consideration.

Eager Loading results in Faster access ( Object available at load time) at the cost of additional space.

Lazy loading results in space saving ( Object available at first use ) at the cost of access speed.

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   Like         Discuss         Correct / Improve     design Pattern  Singleton  Lazy vs Eager Loading


 Q59. Difference between merge and update in hibernateHibernate
 This question was recently asked at 'Nucleus Software'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 1 Companies


 Q60. What are the types of clouds in cloud computing ?Cloud Computing
Ans. Private, Public, Hybrid, Community

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   Like         Discuss         Correct / Improve     Google Cloud Platform (GCP)     Asked in 1 Companies


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