DataEngPrep.tech
QuestionsPracticeAI CoachDashboardPacksBlog
ProLogin
Home/Questions/Python/Coding/TCP Protocol Functionality

TCP Protocol Functionality

Python/Codinghard0.4 min read

**Why TCP in Data Pipelines:** Reliable, ordered delivery—critical for DB connections, Kafka (uses TCP), file transfer. Guarantees: no loss, no duplicates, ordered. **Mechanics:** 3-way handshake (SYN, SYN-ACK, ACK); flow control (sliding window); congestion control;...

🤖 Analyze Your Answer
Frequency
Low
Asked at 1 company
Category
179
questions in Python/Coding
Difficulty Split
127E|24M|28H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
ZS Associates
Key Concepts Tested
window

Why This Question Matters

This hard-level Python/Coding question appears frequently in data engineering interviews at companies like ZS Associates. While less common, it tests deeper understanding that distinguishes strong candidates. Mastering the underlying concepts (window) will help you answer variations of this question confidently.

How to Approach This

This is a senior-level question that tests architectural thinking. Lead with the high-level design, then drill into specifics. Discuss trade-offs explicitly - there is rarely one correct answer. Show awareness of scale, fault tolerance, and operational complexity.

Expert Answer
88 words

Why TCP in Data Pipelines: Reliable, ordered delivery—critical for DB connections, Kafka (uses TCP), file transfer. Guarantees: no loss, no duplicates, ordered.

Mechanics: 3-way handshake (SYN, SYN-ACK, ACK); flow control (sliding window); congestion control; retransmission on loss. Overhead: ~40B header, RTT for handshake.

Trade-offs: UDP = lower latency, no guarantee—use for metrics, streaming where loss acceptable. TCP = reliability. For DB connections: connection pooling reduces handshake overhead (reuse connections).

Cost: Each new TCP connection = 1 RTT. Pool of 10 connections = 10x fewer handshakes for 1000 requests.

dataengprep.techdataengprep.techdataengprep.techdataengprep.tech
dataengprep.techdataengprep.techdataengprep.techdataengprep.tech
dataengprep.techdataengprep.techdataengprep.techdataengprep.tech
dataengprep.techdataengprep.techdataengprep.techdataengprep.tech
dataengprep.techdataengprep.techdataengprep.techdataengprep.tech
dataengprep.techdataengprep.techdataengprep.techdataengprep.tech

Want feedback on your answer?

Paste your answer to this question and our AI Coach scores it, finds gaps, and shows you the FAANG-level version.

Try Answer Analyzer →
Want all answers as a PDF for offline study?
1,863 questions across 7 categories — Interview Packs →

Free: Top 20 SQL Interview Questions (PDF)

Get the most asked SQL questions with expert answers. Instant download.

No spam. Unsubscribe anytime.

Related Python/Coding Questions

easyWhat are traits in Scala, and how are they different from classes?FreemediumWrite a Python function to check if a string is a palindrome.FreeeasyWhat is the difference between a list and a tuple in Python?FreeeasyExplain the difference between shallow copy and deep copy in Python.FreeeasyWrite a Python function to find the first non-repeating character in a string.Free

Companies that ask this Python/Coding question

ZS Associates interview questions →

Want to know if YOUR answer is good enough?

Paste your answer and get instant AI feedback with a FAANG-level improved version.

Analyze My Answer — Free

According to DataEngPrep.tech, this is one of the most frequently asked Python/Coding interview questions, reported at 1 company. DataEngPrep.tech maintains a curated database of 1,863+ real data engineering interview questions across 7 categories, verified by industry professionals.

← Back to all questionsMore Python/Coding questions →