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Socket programming, protocol implementations and packet analysis in C, Python and Java, with clear explanations of every layer.

C socketsPython socketJava NIOWiresharkMininetTCP/IP
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What we cover

Every part of networking your course covers.

Sockets

  • TCP and UDP clients and servers
  • select, poll, epoll
  • Non-blocking I/O
  • Multithreaded servers

Protocols

  • HTTP servers
  • Reliable transport over UDP
  • DNS and DHCP
  • Routing algorithms

Analysis

  • Wireshark captures
  • Subnetting and CIDR
  • Congestion control
  • Latency and throughput

Security

  • TLS basics
  • Firewalls
  • Attacks and defenses
  • SDN with Mininet
Example order

One networking order, start to finish.

What the student uploaded, what came back, and how the price was set.

01The brief
Computer NetworkingUndergradDue in 5 days

Reliable file transfer over UDP

Implement stop-and-wait reliable transfer on UDP with sequence numbers, ACKs and retransmission on timeout. Transfer a 5 MB file over a link with 10% packet loss.

Requirements
  • Sequence numbers and ACKs
  • Timeout and retransmit
  • Handles duplicate packets
  • Works at 10% loss
02The solution
sender.py14 lines
1def send_file(sock, addr, chunks, timeout=0.2):
2 sock.settimeout(timeout)
3 seq = 0
4 for chunk in chunks:
5 packet = seq.to_bytes(1, "big") + chunk
6 while True:
7 sock.sendto(packet, addr)
8 try:
9 ack, _ = sock.recvfrom(1)
10 if ack[0] == seq: # right ACK: move on
11 break
12 except socket.timeout:
13 pass # lost packet or ACK: resend
14 seq ^= 1 # alternate 0 / 1
checksum verified · 10% loss link
03The explanation doc
explanation.pdf
1.
Why one bit is enough
Stop-and-wait has at most one packet in flight, so alternating 0 and 1 tells new from duplicate.
2.
Choosing the timeout
200 ms is about 4× the measured round trip, which avoids needless resends.
3.
Results
5 MB transferred in 4.6 s at 10% loss with a matching checksum.
04The price
AI predicted budget
$90–$170
Level · UndergradIncluded
Deadline · 5 daysStandard
Shown before any contact details were shared.
Final price from our team
$130
Delivered 8h early
How it works

From upload to predicted budget in under a minute.

The AI does one job: it predicts your price. A person on our team reviews your files and sets the final number.

  1. 01
    Step 1 of 4

    Upload your files

    Prompt, rubric, starter code. PDF, DOCX, ZIP or code files, in any combination.

  2. 02
    Step 2 of 4

    The AI asks what’s missing

    It confirms your due date, then asks only what your files don’t say. One question at a time.

  3. 03
    Step 3 of 4

    See your predicted budget

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  4. 04
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    Our team confirms the final price

    Leave your email. A senior engineer reviews your files and sends the final price.

No payment to get a price. You only pay after you accept the final price from our team.

Typical orders

Common networking assignments and typical budgets.

TCP / UDP client-server
$70–$160
Usually 2–3 days
typical range
HTTP or proxy server
$120–$260
Usually 3–5 days
typical range
Reliable transport protocol
$120–$280
Usually 3–5 days
typical range
Wireshark analysis lab
$50–$120
Usually 1–2 days
typical range

Your budget depends on your files, deadline and level. Upload them for your own prediction.

Guarantees

Every order is covered. In writing.

Money-back guarantee
Missed deadline, or code that doesn’t meet the brief after revisions? You get a full refund to your original payment method.
Unlimited free revisions
For 14 days after delivery, we revise until it matches your original instructions. No fees.
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