Shadow Pc Internet Speed Test _top_ May 2026

Practical Exam: Shadow PC — Internet Speed Test

Duration: 45 minutes
Total marks: 40

Purpose: Assess candidates’ ability to evaluate, troubleshoot, and document internet performance for a Shadow cloud PC, using speed tests and related diagnostics.

Instructions for exam administrator:

Provide each candidate with access to a Shadow cloud PC account and a local device to run client software.
Ensure test environment has at least one known-good reference network (e.g., wired ethernet) and one variable network (e.g., Wi‑Fi).
Allow candidates to run online speed-test tools and local network diagnostics.
Candidates must submit a short report (max 1 page) and screenshots/logs.

Task breakdown (marks)

Setup and baseline verification — 6 marks

Connect Shadow client from a local device to assigned Shadow PC (2 marks).
Verify and record Shadow client version, OS, and server region (2 marks).
Capture baseline local-network details: interface (wired/Wi‑Fi), ISP, public IP, local latency to gateway (using ping), and signal strength if Wi‑Fi (2 marks).

Deliverables: Screenshot of Shadow client connected + short table of recorded baseline details.

Perform standard speed tests — 10 marks

Run at least two reputable speed tests from within the Shadow PC (e.g., speedtest.net and fast.com) and two from the local device (2 marks each = 8 marks).
Record download Mbps, upload Mbps, jitter, and selected test server location for each run (2 marks).

Deliverables: Screenshots of each test and a concise table comparing results (Shadow vs local). shadow pc internet speed test

Latency and packet-loss diagnostics — 8 marks

From Shadow PC, run ping to a gaming server or chosen external host (5–10 pings) and record min/avg/max latency and packet loss (3 marks).
Run traceroute (or tracert) from Shadow PC to same host and identify any high-latency hops (>50 ms) or apparent routing issues (3 marks).
Repeat ping/traceroute from local device and note differences (2 marks).

Deliverables: Command outputs and a one-paragraph interpretation of results.

Performance under load — 8 marks

Simulate bandwidth load on local network (e.g., start a large download or stream 4K video) and rerun one speed test from Shadow PC and local device (4 marks).
Measure and report changes in latency (ping) and streaming responsiveness (e.g., frame drops, audio stutter) on Shadow session (4 marks).

Deliverables: Before/after results table and short observations.

Troubleshooting and recommendations — 6 marks

Based on collected data, diagnose the most likely cause(s) of poor Shadow performance if present (2 marks).
Provide 3 prioritized, actionable remediation steps (network and client-side) with brief justification (3 marks).
Suggest one test or metric to validate improvement after fixes (1 mark).

Deliverables: 3–5 sentence diagnostic and bullet list of fixes.

Grading rubric (concise)

Completeness of required tests and artifacts: 40%
Accuracy of measurements and recordings: 30%
Quality of diagnosis and practicality of recommendations: 20%
Clarity and professionalism of submitted report/screenshots: 10%

Notes for exam proctor

Time-limits: enforce 45 minutes; allow extra time only for documented connectivity problems.
Honor system: candidates should not access external help beyond provided documentation.
Make available a sample host IP/domain for ping/traceroute and a suggested gaming host for consistency between candidates.

Example deliverable structure (to submit)

One-page PDF containing:
- Short header: candidate name, time started/ended, Shadow region
- Table: baseline details
- Table: speed test results (local vs Shadow, before vs under load)
- Ping/traceroute snippets (paste or images)
- 3–5 sentence diagnosis + 3 recommended fixes
- Attached screenshots as appendices

If you want, I can convert this into a printable exam sheet or a fillable checklist.

2. Adjust Your MTU (Maximum Transmission Unit)

Shadow uses UDP packets. If your router's MTU is misconfigured, packets fragment, causing "ghost" lag.

Fix: Run Command Prompt as admin. Type netsh interface ipv4 show subinterfaces. Look for your main connection. The MTU should be 1500 (or 1492 for PPPoE). If not, Google your ISP's recommended MTU.

Why a regular Speedtest isn't enough

If you open Ookla or Fast.com, you usually get three numbers: Ping, Download, and Upload. Shadow cares about these, but it also cares about two things those tests ignore: Jitter and Packet Loss.

Bandwidth (Mbps): How much visual data you can receive.
Latency (Ping): How long it takes for your click to reach the server.
Jitter (The Silent Killer): The variation in your ping. If your ping jumps from 20ms to 100ms every few seconds, your stream will stutter even if your average speed is high.
Packet Loss: Data that gets dropped on the highway. This causes screen tearing and artifacts.

Common Misconceptions

| Myth | Reality | |------|---------| | “1 Gbps internet is overkill for Shadow” | Bandwidth isn’t the bottleneck—latency and jitter are. A stable 50 Mbps fiber connection often beats an unstable 1 Gbps cable connection. | | “Speed tests are always accurate” | Many ISPs prioritize speed test traffic. Shadow’s test bypasses this by using the actual streaming protocol. | | “Low ping in games means good Shadow performance” | Game ping (ICMP) ≠ Shadow streaming latency. Shadow uses UDP real-time video encoding, which is more sensitive to jitter. | Practical Exam: Shadow PC — Internet Speed Test

Part 5: The "Shadow Speed Test" Checklist (Troubleshooting)

If your Shadow internet speed test fails, do not blame Shadow immediately. 90% of issues are local. Fix them in this order:

How to Run an Effective Speed Test for Shadow

Do not simply run one test and assume it’s accurate. Follow this protocol:

Decoding the Results: The "Green Light" Numbers

Here is the cheat sheet for what your results mean for actual gameplay.

The "Green Zone" (Perfect)

Ping: < 12 ms
Jitter: < 2 ms
Packet Loss: 0%
Result: You will have a native-like experience. You can play competitive Valorant or edit 4K video.

Troubleshooting: Poor Speed Test Results

If your test shows low speeds or high jitter for Shadow specifically:

Restart your router and modem — bufferbloat often builds up over days.
Enable QoS (Quality of Service) on your router — prioritize UDP traffic to/from Shadow’s IP range.
Switch DNS to Cloudflare (1.1.1.1) or Google (8.8.8.8) — reduces routing instability.
Update network drivers and disable “Large Send Offload” (LSO) in Windows.
Try a VPN — in rare cases, ISP throttling of cloud gaming can be bypassed (adds 3–5 ms latency).
Change Shadow’s bandwidth cap in the launcher settings — set it 10–15 Mbps below your tested max for stability.