Interview Questions and Answers for 'Ola' | Search Interview Question

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Q41. Why do you want to leave your current job ?

Ans. The most effective and acceptable reasons for leaving your current job should be positive e.g. moving forward in your life or career

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_{Like Discuss Correct / Improve Asked in 21 Companies}

Q42. how is the internal code for the "volatile" implemented ?

Core Java

^{This question was recently asked at 'Symantec'.This question is still unanswered. Can you please provide an answer.}

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_{Like Discuss Correct / Improve volatile Asked in 1 Companies}

Q43. What are the different ways to avoid multi Threading related problems in Java ?

Core Java

Ans. Synchronization,
Concurrent classes,
Volatile keyword,
Implementing concurrent Lock interface,
Immutable classes

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_{Like Discuss Correct / Improve multithreading threads ways to avoid thread related problems synchronization volatile concurrent collections Intermediate}

Q44. Can we make array volatile in Java ?

Core Java

Ans. Yes, you can make an array (both primitive and reference type array e.g. an int array and String array) volatile in Java but only changes to reference pointing to an array will be visible to all threads, not the whole array

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Q45. Have you heard of volatile Table in Teradata ?

Teradata

Ans. If you create table with VOLATILE option, the life of the table will be only for the current session.
It will be automatically dropped by Teradata manager once session expires.

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Q46. Difference between Query param and path param ?

^{This question was recently asked at 'GSpann Technologies, Motorola Solutions'.This question is still unanswered. Can you please provide an answer.}

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Q47. Explain memory leaks and how to prevent them.

^{This question was recently asked at 'Polaris'.This question is still unanswered. Can you please provide an answer.}

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Q48. Explain Rest architecture

Rest

^{This question was recently asked at 'Motorola Solutions,DXC Technology'.This question is still unanswered. Can you please provide an answer.}

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Q49. How do you achieve String immutability ?

Core Java

^{This question was recently asked at 'Polaris'.This question is still unanswered. Can you please provide an answer.}

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Q50. 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}

Q51. What is interpolation in Angular ?

Angular

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Q52. Can we use interpolation with all data types ?

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Q53. What are the limitations with using interpolation ? Why do we need property binding ?

Ans. Interpolation can only work with String types and hence we need property binding while working with other data types.

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Q54. The use of volatile keyword facilitates ..

Core Java

a. Making Use of Cache for better Performance

b. Avoiding use of Cache

c. Making use of Backward as well as Forward Cache

d. Keeping only one copy of variable in Cache

Ans.b. Avoiding use of Cache

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