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PSA Singapore Interview Questions and Answers
PSA Singapore Interview Experiences
3 interviews found
Anonymous
(2 Questions)
- Q1. What is a Vlan?
- Ans.
A VLAN (Virtual Local Area Network) is a logical network that groups devices together based on factors such as department, function, or location.
VLANs help improve network security by isolating traffic between different groups of devices.
They can also help optimize network performance by reducing broadcast traffic.
VLANs are configured at the switch level and allow for segmentation of network traffic.
For example, a comp...
- Q2. How to you route packets?
- Ans.
Routing packets involves determining the best path for data to travel from source to destination.
Routing protocols like OSPF and BGP are used to determine the best path for packets.
Routers use routing tables to make decisions on how to forward packets.
Packet headers contain destination IP addresses which routers use to determine the next hop.
Static routes can also be configured manually to specify the path packets shou...
Skills evaluated in this interview
Network Engineer Interview Questions asked at other Companies
Selected
I applied via Referral and was interviewed before Feb 2022. There were 2 interview rounds.
(2 Questions)
- Q1. Technical experience and knowledge on hydraulic
- Q2. How can you apply your knowledge and if a motor is faulty, what are the requirements you need to consider?
- Ans.
To identify a faulty motor, I would apply my knowledge of motor functioning and consider factors such as noise, vibration, and temperature.
Check for abnormal noise or vibration during operation
Measure the temperature of the motor during operation
Inspect the motor for physical damage or wear and tear
Check the electrical connections and wiring for any faults
Perform diagnostic tests to identify the specific issue
Consider
Interview Preparation Tips
Service Engineer Interview Questions asked at other Companies
I applied via LinkedIn and was interviewed before Nov 2021. There were 3 interview rounds.
Good nice questions and proper answers
(2 Questions)
- Q1. Real reason to leave the company
- Q2. How’s the work there?
Interview Preparation Tips
Associate Engineer Interview Questions asked at other Companies
Interview questions from similar companies
Interview Questionnaire
2 Questions
- Q1. They asked me on java and I have joined as a fresher they not much questions as I got selected as fresher on oops concepts and collections
- Q2. Please be confident while facing interview and they will check your communication skills
Interview Questionnaire
1 Question
- Q1. Who is the most important person have to transform you in your life?
Interview Preparation Tips
I applied via Company Website and was interviewed before Feb 2020. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. They asked about dbms questions in the form of table formate
- Q2. They asked code for some python program
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Oct 2020. There were 4 interview rounds.
Interview Questionnaire
5 Questions
- Q1. Wap of bubble sort
- Ans.
Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.
Start from the first element and compare it with the next element
If the next element is smaller, swap them
Repeat this process for all elements in the array
Continue this process until no more swaps are needed
- Q2. Wap of prime number
- Ans.
A program to print all prime numbers
Take input from user for range of numbers
Loop through the range and check if each number is prime
Print the prime numbers
- Q3. What is hashmap?
- Ans.
Hashmap is a data structure that stores key-value pairs and allows constant time access to values based on their keys.
Hashmap uses a hash function to map keys to indices in an array.
Collisions can occur when multiple keys map to the same index, which can be resolved using techniques like chaining or open addressing.
Examples of hashmap implementations include Java's HashMap class and Python's dict type.
- Q4. What is inheritance
- Ans.
Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.
Inheritance allows code reuse and promotes code organization.
The existing class is called the parent or superclass, and the new class is called the child or subclass.
The child class inherits all the properties and methods of the parent class and can also add new properties and methods.
For...
- Q5. Call by value and call by reference
Interview Preparation Tips
Skills evaluated in this interview
I applied via Company Website and was interviewed in Oct 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. What is recursion ? what is inheritance? what is heap? write a code to find the largest element in an array?
- Ans.
Recursion is a process in which a function calls itself. Inheritance is a mechanism in OOP where a class inherits properties of another class. Heap is a region of memory used for dynamic memory allocation.
Recursion can be used to solve problems that can be broken down into smaller sub-problems.
Inheritance allows for code reuse and helps in creating a hierarchy of classes.
Heap is used for dynamic memory allocation in la...
Interview Preparation Tips
Skills evaluated in this interview
I applied via Walk-in and was interviewed in Mar 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Introduction your self in interview
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. Tell me about yourself
Interview Preparation Tips
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