Vocera Communications Interview Questions and Answers

Q1. What are the data types in python?
Ans. 
Python data types include integers, floats, strings, lists, tuples, dictionaries, and sets.
• Integers: whole numbers without decimal points, e.g. 5, -3

• Floats: numbers with decimal points, e.g. 3.14, -0.5

• Strings: sequences of characters enclosed in quotes, e.g. 'hello', '123'

• Lists: ordered collections of items, e.g. [1, 'apple', True]

• Tuples: ordered, immutable collections, e.g. (1, 'banana', False)

• Dictionaries: key-value ...read more
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Q2. What is inheritence in python and its types?
Ans. 
Inheritance in Python allows a class to inherit attributes and methods from another class.
• Types of inheritance in Python include single inheritance, multiple inheritance, and multilevel inheritance.

• Single inheritance: a class inherits from only one base class.

• Multiple inheritance: a class inherits from multiple base classes.

• Multilevel inheritance: a class inherits from a derived class, which in turn inherits from anoth
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Q3. Difference between tuple, list, dictionaries and set.
Ans. 
Tuple is immutable, list is mutable, dictionaries are key-value pairs, and set is a collection of unique elements.
• Tuple: Immutable, ordered collection of elements. Example: (1, 2, 3)

• List: Mutable, ordered collection of elements. Example: [1, 2, 3]

• Dictionaries: Key-value pairs, unordered. Example: {'key1': 'value1', 'key2': 'value2'}

• Set: Collection of unique elements, unordered. Example: {1, 2, 3}
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Q4. Reverse a string without using slicing. Need to write it on paper.
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Q1. Basic questions about us.
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Q2. Given a string and asked to get the vowels in a string.
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Q1. Basic Linux Based Questions
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Q2. MYSQL based questions
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Q3. Call flow of DRA-PCRF
Ans. 
DRA-PCRF call flow involves Diameter messages between Diameter Routing Agent and Policy and Charging Rules Function.
• Diameter messages are exchanged between DRA and PCRF for policy and charging control in a network.

• DRA acts as a proxy between the PCRF and other network elements, routing Diameter messages.

• PCRF provides policy control decision-making for subscriber sessions based on network policies.

• Example: DRA receives ...read more
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Basic Apptitude test. Can pass

Q1. Similar questiosns like Round 1
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Logical reason and problem solving

Q1. Going through resume and current work and projects
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Q1. Tell me a situation where you need to convice your manager to do what you came up with and how you have handled it ?
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Q2. Behavioral and technical
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Basic interview related questions from python

Basic inteview questions related to oops

Q1. Questions regarding the project
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Q1. Psychometric assessment
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Q1. Same questions as asked in hr and some technical questions
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Q1. Covered max all javascript topics
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They provided the UI design to implement in javascript with required functionalities

Q1. Package discussion
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Q1. Asked about experience with Kubernetes, Jenkins and git.
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First round was Aptitude test on logical reasoning
And coding problems on arrays and sql Queries

Q1. On core java oops concept File handling Collections framework And Sql on joins
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Q2. On your project
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Q1. It was director and HR round Both technical and non technical and behavioural
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Q1. Self intro and why should I hire you
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Q2. What are your strengths
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Q3. What are your career goals
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Q4. What are your weakness
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Q5. How many languages do you speak
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Grammar vocubulary aptitude reasoning