Chapter 11 — Quiz

Twenty-four self-check questions: sixteen multiple choice, then eight short answer. Answer them before you open the key at the bottom. This quiz tests whether you can read an image the way Google does, describe it honestly, keep it fast, and treat video and visual search as the real search surfaces they are.

Part 1 — Multiple choice

Q1. Which of these is a signal for understanding an image that you control? - A. Google's machine-vision model - B. Descriptive alt text - C. The searcher's device - D. Google's image index deduplication

Q2. The first purpose of alt text is: - A. To rank the page for its target keyword - B. To describe the image for people who can't see it (screen readers, failed loads) - C. To store the camera's settings - D. To set the image's file size

Q3. "Geotag your images' EXIF data to rank in local search" is: - A. Confirmed best practice - B. A myth — there is no credible evidence Google uses EXIF GPS as a local ranking factor - C. Required for Google Images - D. The only way to appear in the local pack

Q4. A purely decorative image should have: - A. A keyword-rich alt attribute - B. The filename repeated in the alt - C. An empty alt attribute (alt="") so screen readers skip it - D. No alt attribute at all (leave it off)

Q5. For image search specifically, alt text is: - A. Irrelevant - B. Confirmed by Google as helping it understand and rank images - C. A guaranteed path to page-one web rankings - D. Only useful if it repeats the target keyword three times

Q6. Which two Core Web Vitals are most often dominated by images? - A. LCP and CLS - B. HTTPS and mobile-friendliness - C. Crawl budget and index coverage - D. CTR and bounce rate

Q7. You should never lazy-load: - A. Any image on the page - B. Images below the fold - C. Your LCP (largest, above-the-fold) image - D. Decorative images

Q8. "Lazy loading hides my images from Google" is: - A. Always true - B. Generally false — Google supports standard lazy loading; only broken (interaction-gated) implementations hide images - C. True only for WebP images - D. True only on mobile

Q9. VideoObject is: - A. A video file format - B. A YouTube ranking signal you set in Studio - C. The Schema.org structured-data type that describes a video to search engines - D. A type of thumbnail

Q10. Video key moments are: - A. The most-watched seconds of a video - B. Timestamped, clickable segments Google can show beneath a video result - C. A paid YouTube feature - D. The same thing as tags

Q11. The claim "YouTube is the world's #2 search engine" is best treated as: - A. A precisely measured fact to quote in reports - B. A directionally-true characterization (huge, intent-rich search demand) rather than a cleanly measured rank - C. Pure marketing with no basis - D. Confirmed by Google as an exact statistic

Q12. On YouTube, the single biggest driver of click-through rate is usually the: - A. Number of tags - B. Video length - C. Custom thumbnail - D. Upload time of day

Q13. YouTube's ranking is driven most by: - A. Meta keywords - B. Watch time and audience retention - C. The number of tags - D. EXIF data

Q14. Visual search means: - A. Searching with your voice - B. Searching with an image as the query - C. Searching only within Google Images - D. Searching for images using text

Q15. An image sitemap primarily helps with: - A. Ranking images higher - B. Discovery — helping Google find images (especially ones loaded via JS/CSS) - C. Compressing image files - D. Writing alt text automatically

Q16. The one embedded-metadata standard Google documents reading to show credits and a "Licensable" badge is: - A. EXIF GPS - B. IPTC photo metadata - C. The filename - D. The alt attribute

Part 2 — Short answer

Q17. Name three image-understanding signals you control and one you cannot tune.

Q18. State the correct alt-text standard in one sentence, and give one example of alt text that violates it by keyword stuffing.

Q19. Explain why image performance overlaps with Core Web Vitals, naming the specific vital that a heavy hero image hurts and the one that an unsized image hurts.

Q20. In one sentence each, what can VideoObject markup and video key moments do, and what can they not promise?

Q21. Give three reasons a business should provide accurate captions on its videos (name at least one that is not about SEO).

Q22. Explain why you "cannot optimize for Google Lens" the way you optimize for keywords — and what you can do instead.

Q23. Distinguish what a sitemap does for an image or video from what it does not do.

Q24. A results page shows a video with key moments above the text results. Using Chapter 10's "read the format off the SERP," what is the query telling you, and what should you build?

Answer key (try every question first) **Part 1 — Multiple choice** 1. **B** — Alt text is yours to write. Google's vision model, the searcher's device, and index dedup are not things you tune. 2. **B** — Accessibility is the first purpose; the image-search benefit rides along. 3. **B** — A myth. Location signals come from the Google Business Profile, NAP consistency, and on-page content (Chapter 25), not EXIF. 4. **C** — Empty `alt=""`. *Missing* (no attribute) is worse, because some screen readers then read the filename. 5. **B** — Confirmed by Google for understanding and ranking *images*; it is a much weaker lever for ordinary web ranking. 6. **A** — Largest Contentful Paint (heavy/slow hero image) and Cumulative Layout Shift (unsized image). 7. **C** — Your LCP image; deferring the big above-the-fold image directly harms LCP. 8. **B** — Generally false; Google supports standard lazy loading. Only interaction-gated, non-standard implementations hide images. 9. **C** — The Schema.org type describing a video (name, description, thumbnail, duration, play URLs). 10. **B** — Timestamped, clickable segments beneath a video result. 11. **B** — Directionally true (massive, intent-rich demand) but not a cleanly measured "#2"; we don't stake anything on the exact rank. 12. **C** — The custom thumbnail is the biggest CTR lever. 13. **B** — Watch time and audience retention (with CTR and other satisfaction signals). 14. **B** — Searching with an image as the query (Google Lens). 15. **B** — Discovery, especially for images loaded via JavaScript or CSS. It does not raise rankings. 16. **B** — IPTC photo metadata powers image credits and the "Licensable" badge. **Part 2 — Short answer** 17. **Control (any three):** descriptive alt text, descriptive filename, caption/surrounding text, structured data, overall page context. **Can't tune:** Google's machine-vision analysis of the pixels — you can only give it a clear, unambiguous subject. 18. **Standard:** describe the image truthfully and concisely in the context of its page; let relevant words appear naturally; empty `alt=""` for decorative images. **Stuffing violation (example):** `alt="furnace repair furnace repair near me best HVAC Cedar Hills emergency"`. 19. Images are the most common cause of slow, unstable pages: a heavy, slow hero image is often the **Largest Contentful Paint (LCP)** problem, and an **unsized** image that shifts content as it loads is often the **Cumulative Layout Shift (CLS)** problem. (Full weighting: Chapter 16.) 20. **Can do:** make a video eligible for richer results — thumbnail, duration, upload date, and clickable key moments that jump to a step. **Cannot promise:** that Google will actually grant the rich result, the key moments, or any ranking — those are Google's call. 21. Any three, including at least one non-SEO: accessibility for deaf/hard-of-hearing viewers (non-SEO); usability for sound-off viewing; and clean text that helps YouTube and Google understand the video's content (SEO). 22. Because Lens matches *pixels and facts*, not keywords — there is no keyword dial or "Lens tag." What you *can* do: publish clear, well-lit, single-subject images that are actually in the index, backed by accurate structured data (e.g., `Product`, Chapter 18) and trustworthy pages. 23. A sitemap helps Google **discover** an image or video (find it, especially if loaded via JS/CSS). It does **not** make it rank; discovery is not ranking, and a sitemap won't rescue a weak image or video. 24. The query wants to be **shown, not just told** — visual, procedural intent. Build a genuinely useful **how-to video**, structured into named steps (so key moments are possible), on a crawlable page with a transcript and `VideoObject` markup, to become *eligible* (never guaranteed) for that slot.