How Search Engines Work — Test 1

Correct Answer: C. Crawling → Indexing → Ranking (serving)
Explanation: A page has to be discovered and stored before it can be ranked for any query. ALSO KNOW (related points): • What does 'crawl budget' refer to? → The number of URLs a search engine is willing and able to crawl on a site within a given time

Correct Answer: C. Googlebot
Explanation: With mobile-first indexing, Googlebot Smartphone is the primary crawler.

Correct Answer: B. Google mainly uses the mobile version of a page's content for indexing and ranking
Explanation: If the mobile version hides content, that content may be lost from the index. ALSO KNOW (related points): • What is Google's web crawler called? → Googlebot • What is an orphan page? → A page with no internal links pointing to it, making it hard for crawlers and users to find • How does Google handle JavaScript-rendered content? → It can render JavaScript, but rendering may be deferred; server-side rendering makes content available sooner and more reliably

Correct Answer: A. The number of URLs a search engine is willing and able to crawl on a site within a given time
Explanation: Crawl budget mainly matters for very large sites. Duplicate and parameterized URLs waste it.

Correct Answer: A. A page with no internal links pointing to it, making it hard for crawlers and users to find
Explanation: Internal linking helps both discovery and the flow of ranking signals.

Correct Answer: A. It can render JavaScript, but rendering may be deferred; server-side rendering makes content available sooner and more reliably
Explanation: Crawling, rendering, and indexing happen in separate stages.

Correct Answer: D. PageRank
Explanation: The public PageRank toolbar score was retired in 2016, but link-based signals are still used internally.

Correct Answer: D. Domain Authority (a third-party metric from Moz)
Explanation: Third-party scores such as DA or DR only estimate ranking strength. ALSO KNOW (related points): • What is the name of Google's original link-analysis algorithm? → PageRank