Skill Assessment & Placement Test

Version Control & Git

1. What does git status do?

Shows the current internet connection status Lists all branches in the repository Shows which files are modified, staged, and untracked Uploads the code to GitHub

Version Control & Git

2. How do you remove a file from Git tracking without deleting it from your local hard drive?

git rm --cached file_name git untrack file_name git rm file_name git delete --soft file_name

API Development

3. Which basic scalar types does GraphQL natively support?

String, Int, Float, Boolean, ID String, Number, Array, Object Text, Integer, Decimal, Bool Char, Double, Struct, UUID

Cloud Computing

4. What is an 'AWS Region'?

A specific database index. A physical geographic location containing multiple isolated, redundant data centers (Availability Zones). A network connection port range. A cloud user group.

Computer Science Fundamentals

5. Why is inserting an element at the beginning of a standard Array generally an O(n) operation?

Because the memory must be erased first Because all existing elements must be shifted one position to the right to make room Because arrays are linked Because you must sort the array first

DevOps

6. What is the name of the file where a Jenkins Pipeline is defined as code?

pipeline.xml build.json Jenkinsfile config.yml

Cloud Computing

7. What is the purpose of AWS CloudFormation?

Monitoring server temperatures in data centers. An Infrastructure as Code (IaC) tool letting you model, provision, and update AWS resources using declarative template files. Setting up database replication tables. Compiling local files.

Frontend Development

8. Which tool in Angular is used to transform data before rendering it in templates (e.g., lowercase, uppercase, currency)?

Filters Pipes Directives Modules

DevOps

9. What is a "Pipeline" in Jenkins?

A physical cable connecting servers A suite of plugins that supports implementing and integrating continuous delivery pipelines into Jenkins using code A database connection A tool to download updates

API Development

10. What happens if a specific field's resolver throws an error in GraphQL?

The entire HTTP request returns a 500 error and no data is sent The query completes, the specific field returns null (if nullable), and an errors array is appended to the response payload alongside successful data The server crashes permanently The client receives a 404 error

Cyber Security

11. Which tool is famous for scanning network ports and mapping target services?

Wireshark Nmap Metasploit Burp Suite

Database Management

12. What is a "Foreign Key"?

A key used for encrypting external databases A field that uniquely identifies a row in its own table A field in one table that refers to the Primary Key in another table A secondary index

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