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CtrlS AWS Engineer Interview Questions, Process, and Tips
CtrlS AWS Engineer Interview Experiences
1 interview found
Anonymous
I applied via Naukri.com and was interviewed in May 2021. There was 1 interview round.
Interview Questionnaire
11 Questions
- Q1. AWS Load balancers, whats the difference between NLB and ALB.
- Ans.
NLB and ALB are both AWS load balancers, but NLB operates at the transport layer while ALB operates at the application layer.
NLB is designed for extreme performance and low latency, making it suitable for TCP and UDP traffic.
ALB provides advanced routing capabilities and supports HTTP, HTTPS, and WebSocket protocols.
NLB supports static IP addresses, while ALB uses dynamic IP addresses.
ALB supports content-based routing...
- Q2. Whats the difference between IAM user and IAM role
- Ans.
IAM user is an entity that represents a person or application, while IAM role is an entity that represents a set of permissions.
IAM user is associated with long-term credentials (access key and secret access key) and is used to directly interact with AWS services.
IAM role does not have long-term credentials and is assumed by trusted entities, such as AWS services or applications running on EC2 instances.
IAM user has a ...
- Q3. Whats the difference between security groups and nacl
- Ans.
Security groups and NACLs are both used for network security in AWS, but they operate at different levels of the network stack.
Security groups are stateful and operate at the instance level, controlling inbound and outbound traffic based on port, protocol, and IP addresses.
NACLs are stateless and operate at the subnet level, controlling traffic based on subnet IP addresses, port ranges, and protocol numbers.
Security gr...
- Q4. What is route 53 and various routing policies available?
- Ans.
Route 53 is a DNS web service that routes end users to internet applications by translating domain names to IP addresses.
Routing policies include simple, weighted, latency-based, failover, geolocation, and multivalue answer.
Simple routing policy sends traffic to a single resource.
Weighted routing policy distributes traffic based on assigned weights.
Latency-based routing policy sends traffic to the region with the lowes...
- Q5. Route 53 is a DNS webservice in aws. We have 6 routing policies: simple,latency,weighted,failover,geolocation and geoproximity routing policies
- Q6. Whats read replica in RDS
- Ans.
Read replica is a copy of the primary database instance in RDS that allows read-only access to the data.
Read replicas can be used to offload read traffic from the primary database instance.
They can be created in the same region or in a different region for disaster recovery purposes.
Read replicas are asynchronous, meaning that changes made to the primary instance may not be immediately reflected in the read replica.
The...
- Q7. Read replica helps in decreasing the load on the primary DB by serving read-only traffic.
- Q8. Whats the use of VPC Endpoint in Amazon S3?
- Ans.
VPC Endpoint in Amazon S3 allows direct access to S3 from within a VPC without going over the internet.
VPC Endpoint provides a secure and private connection between VPC and S3.
It eliminates the need for a NAT gateway or VPN connection.
It improves security by keeping traffic within the AWS network.
It reduces data transfer costs and improves performance.
Examples: accessing S3 buckets from EC2 instances in a VPC, using S3
- Q9. By using VPC endpoint , you can privately connect to a VPC without an Internet gateway/NAT /VPN Connection.
- Q10. What is VPC Peering
- Ans.
VPC Peering is a networking connection between two VPCs that allows them to communicate using private IP addresses.
VPC Peering enables inter-VPC communication within the same AWS region.
It is a secure and low-latency connection.
Peered VPCs can share resources like EC2 instances, RDS databases, etc.
Transitive peering is not supported, meaning VPCs cannot be peered through a peered VPC.
Peering connections can be establis
- Q11. Its a networking connection between 2 VPCs that enable to route traffic between them using Private IP addresses
Interview Preparation Tips
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
I applied via Hirect and was interviewed before Aug 2021. There were 3 interview rounds.
Logical, Verbal, Cognitive
(1 Question)
- Q1. Code completion and debugging
(1 Question)
- Q1. Generic HR round with basic questions on designation, package, location, etc
Interview Preparation Tips
Senior Software Engineer Interview Questions & Answers
QualityKiosk Technologies
Sanjana Pakal
posted on 28 Feb 2025
I was interviewed in Jan 2025.
The maximum score required to achieve is 50% out of 100.
(2 Questions)
- Q1. Can you describe your previous project?
- Q2. Describe Mobile Testing and API Testing.
Interview Preparation Tips
Selected
I was interviewed in Dec 2024.
(2 Questions)
- Q1. Realted to o365 theory
- Q2. Regarding litigation hold and retention policies with mailflow and structure and some scenario based questions
(2 Questions)
- Q1. Regarding technical questions and scenario based
- Q2. Teams issues and outlook
(2 Questions)
- Q1. Salary discussion
- Q2. Description of working culture and ethics
Selected
(2 Questions)
- Q1. What is the internal working of a hashmap?
- Q2. Design a Least Recently Used (LRU) cache.
(2 Questions)
- Q1. What are the SOLID principles in software engineering?
- Q2. What design patterns have you worked with?
Priya Rao
Data structure was more and it was difficult round
(1 Question)
- Q1. It will depend on interviewer
(1 Question)
- Q1. It will be depending on Manager who is taking interview
(1 Question)
- Q1. It will be very smooth
Interview Preparation Tips
Bhupendra Sonwane
Selected
I was interviewed in Oct 2024.
(2 Questions)
- Q1. SQL problem window function
- Q2. SQL code like join and scenerio
(2 Questions)
- Q1. Design round for adf pipeline
- Ans.
Designing an ADF pipeline for data processing
Identify data sources and destinations
Define data transformations and processing steps
Consider scheduling and monitoring requirements
Utilize ADF activities like Copy Data, Data Flow, and Databricks
Implement error handling and logging mechanisms
- Q2. Azure synapses and adf adb
(2 Questions)
- Q1. Expected ctc and current ctc negotiations
- Ans.
Discussing expected and current salary for negotiation purposes.
Be honest about your current salary and provide a realistic expectation for your desired salary.
Highlight your skills and experience that justify your desired salary.
Be open to negotiation and willing to discuss other benefits besides salary.
Research industry standards and salary ranges for similar positions to support your negotiation.
Focus on the value y...
- Q2. Relocation and remote work until ofc open for Pune location
Interview Preparation Tips
Skills evaluated in this interview
I was interviewed in Nov 2024.
Coding test was easy. They asked LC easy anyone with fair understanding of programming can easily solve it.
(2 Questions)
- Q1. Asked a question from Blind 75 that i dont remember as of now. I kind of stumbled here yet gave a code for original question
- Q2. Asked LC hard question. Interviewer was very rude and did not give a shit about my approach when I tried to explain it to him/her. He said just run code against test cases provided. I received rejection ...
Interview Preparation Tips
Data Engineer Interview Questions & Answers
Indium Software
Kathiravan Kesavan
posted on 16 Dec 2024
Selected
I applied via Recruitment Consulltant and was interviewed in Nov 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Question based on big data
- Q2. Cloud based messaging system
(1 Question)
- Q1. Cloud based operations
Selected
(2 Questions)
- Q1. Difference between Scheduled script and Map reduce script?
- Ans.
Scheduled script runs on a predefined schedule, while Map reduce script processes large datasets in parallel.
Scheduled script is used for automating tasks at specific times, like sending reports daily at 8am.
Map reduce script is used for processing large datasets by splitting them into smaller chunks and processing them in parallel.
Scheduled script is typically used for routine tasks, while Map reduce script is used fo...
- Q2. Types of scripts in NetSuite.
- Ans.
Types of scripts in NetSuite include SuiteScript, SuiteTalk, SuiteFlow, and SuiteBuilder.
SuiteScript: JavaScript-based scripts for customizing NetSuite functionality.
SuiteTalk: Web services integration for connecting NetSuite with external systems.
SuiteFlow: Visual workflow tool for automating business processes.
SuiteBuilder: Customization tool for modifying NetSuite forms, fields, and records.
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CtrlS AWS Engineer Reviews and Ratings
based on 1 review
Rating in categories
|
Associate Engineer
75
salaries
|  ₹2.4 L/yr - ₹6 L/yr |
|
Shift Manager
66
salaries
| ₹7.1 L/yr - ₹17.5 L/yr |
|
Assistant Manager
59
salaries
| ₹6.8 L/yr - ₹18 L/yr |
|
Program Manager
52
salaries
| ₹5.8 L/yr - ₹25.4 L/yr |
|
Network Security Engineer
50
salaries
| ₹3.5 L/yr - ₹10.4 L/yr |
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