Browser Engines & History — Test 1

Correct Answer: A. Blink
Explanation: Blink was forked from WebKit in 2013. Chrome's JavaScript engine is V8. ALSO KNOW (related points): • Which rendering engine does Apple Safari use? → WebKit • Which rendering engine do Brave and Vivaldi use? → Blink, because both are Chromium-based

Correct Answer: B. Gecko
Explanation: Firefox's JavaScript engine is SpiderMonkey. ALSO KNOW (related points): • Which rendering engine did Internet Explorer use? → Trident • Which browser is the Tor Browser built on? → Firefox ESR (Gecko)

Correct Answer: B. WebKit
Explanation: Safari's JavaScript engine is JavaScriptCore (also called Nitro).

Correct Answer: C. Chromium (the Blink engine and the V8 JavaScript engine)
Explanation: The original Edge used EdgeHTML. Microsoft switched to Chromium in January 2020. ALSO KNOW (related points): • Which rendering engine has Opera used since 2013? → Blink (Chromium) • What is the main JavaScript engine in Chromium-based browsers? → V8

Correct Answer: B. Trident
Explanation: Microsoft retired Internet Explorer 11 on most Windows versions in June 2022.

Correct Answer: A. Blink (Chromium)
Explanation: Before 2013, Opera used its own Presto engine.

Correct Answer: A. Blink, because both are Chromium-based
Explanation: Most browsers today are Chromium-based. Firefox (Gecko) and Safari (WebKit) are the main exceptions.

Correct Answer: B. Firefox ESR (Gecko)
Explanation: It routes traffic through the Tor network and adds anti-fingerprinting measures.

Correct Answer: D. WorldWideWeb (later renamed Nexus)
Explanation: Mosaic (1993) popularized the graphical web, and Netscape Navigator followed in 1994.

Correct Answer: D. WebKit
Explanation: Apple's App Store rules required WebKit. Since iOS 17.4, the EU Digital Markets Act allows alternative engines in the EU only. ALSO KNOW (related points): • Which was the first web browser, written by Tim Berners-Lee in 1990? → WorldWideWeb (later renamed Nexus) • Why do most browsers' User-Agent strings begin with 'Mozilla/5.0'? → For historical compatibility, because sites once served better content to 'Mozilla' (Netscape) browsers