FPSC Past Papers MCQs

FPSC Programmer (BS 17) PMD High Yield 2026  — 350 MCQs  (Page 29 of 35)

Practice FPSC Past Papers MCQs with solved questions from real past exams. These MCQs cover FPSC Programmer (BS 17) PMD High Yield 2026 past papers and are ideal for candidates preparing for competitive exams.

View Tests (30 MCQs each)
Why does a browser block some window.open() calls as pop-ups?
  • Pop-ups are blocked only in private mode
  • Pop-ups that are not triggered by a direct user gesture, such as a click, are blocked by default
  • All window.open() calls are always blocked
  • Only HTTPS pop-ups are blocked
What is the difference between Chromium and Google Chrome?
  • Chrome is open source and Chromium is closed
  • They are identical
  • Chromium is made by Microsoft
  • Chromium is the open-source project; Chrome is Google's branded build that adds proprietary parts such as automatic updates and some media codecs
Why has Chrome reduced (frozen) the information in its User-Agent string?
  • To reduce passive fingerprinting; detailed information is available on request through User-Agent Client Hints
  • Because HTTP/3 forbids it
  • To hide the Chrome brand
  • To save bandwidth
What does a browser send to revalidate a cached resource that has an ETag?
  • A full new GET with no headers
  • If-Match with the file size
  • A HEAD request only
  • If-None-Match with the ETag value; the server replies 304 Not Modified if the resource is unchanged
What is the difference between <link rel="preload"> and <link rel="prefetch">?
  • They are identical
  • preload fetches a high-priority resource needed by the current page; prefetch fetches a low-priority resource likely to be needed for a future navigation
  • preload works only for images
  • prefetch is for the current page; preload is for future pages
In the Chrome DevTools Console, what does $0 refer to?
  • The DOM element currently selected in the Elements panel
  • The page title
  • The first script on the page
  • The last error
What is Android System WebView?
  • A Chromium-based component that lets Android apps display web content inside the app
  • A Firefox add-on
  • A DNS service
  • A separate browser app
What is the correct order of the stages a search engine goes through?
  • Indexing → Crawling → Ranking
  • Ranking → Crawling → Indexing
  • Crawling → Indexing → Ranking (serving)
  • Crawling → Ranking → Indexing
What does 'mobile-first indexing' mean?
  • Desktop sites are no longer indexed
  • Google mainly uses the mobile version of a page's content for indexing and ranking
  • Mobile sites rank first
  • Only apps are indexed
Which metric, such as 'Domain Authority', is NOT an official Google ranking factor?
  • Page experience signals
  • Page relevance
  • Links from other sites
  • Domain Authority (a third-party metric from Moz)