How search engines work

When Liam and Sabrina search for a recipe on Google, what does Google search?

• Only the most popular recipe websites

• The entire web directly for recipes

• Google's index of the web for recipes

• Websites that pay Google for indexing their recipes

Answer explanation

Google searches its index of the web for recipes, providing results from various websites that contain relevant recipes.

Imagine Blake and Liam are developing a search engine. What software programs would they use to index the web?

• Crawlers

• Spiders

• Bots

• Worms

Answer explanation

Blake and Liam would use spiders to index the web. Spiders are software programs that crawl the web to gather information for search engines.

Imagine Harry and Alex are working on a school project about ancient civilizations. They find two articles: one is referenced by many educational websites while the other is hardly mentioned. How does Google's PageRank algorithm interpret this information?

• To count the number of visitors to each article

• To rate an article's importance based on how many reputable sites link to it

• To rate an article's loading time

• To measure the speed of an article's website

Answer explanation

Google's PageRank algorithm rates an article's importance based on how many reputable sites link to it, not by counting visitors or measuring loading time.

How does Google decide which restaurants Blake and Liam really want to dine at?

• By the size of the restaurant's menu

• By the number of photos in the restaurant's gallery

• By asking over 200 questions

• By the color theme of the restaurant's website

Answer explanation

Google decides which restaurants Blake and Liam really want to dine at by asking over 200 questions.

What is NOT a factor in determining a restaurant's ranking in Google search results, according to a project Alex and Blake worked on?

• If the restaurant is recognized for its quality

• How many times the restaurant's name appears in reviews

• The payment received from the restaurant

• The restaurant's popularity online

Answer explanation

The payment received from the restaurant is NOT a factor in determining a restaurant's ranking in Google search results, according to the project Alex and Blake worked on.

When Scott searches for a local bakery on a search engine, what does each search result entry include?

• The bakery's full menu and prices

• A QR code to order directly

• A list of all bakeries in the area

• A title, a URL, and a snippet of text

Answer explanation

The search result entry for a local bakery includes a title, a URL, and a snippet of text, not the full menu, prices, or a QR code to order directly.

Imagine Alex and Sabrina are searching for a new smartphone on Google. How does Google make it clear which results are paid advertisements and which are organic search results?

• By only showing them to premium users

• By clearly labeling them as ads

• By using a different font color

• By placing them at the bottom

Answer explanation

The correct way Google distinguishes between paid ads and organic search results is by clearly labeling the ads as such.

During a wildlife documentary, Josh points out: What is the top running speed of a cheetah according to the search results?

• Less than 40 miles an hour

• Exactly 75 miles an hour

• More than 60 miles an hour

• More than 50 miles an hour

Answer explanation

The correct answer is 'More than 60 miles an hour' as cheetahs can reach speeds of up to 70 miles per hour in short bursts, making them the fastest land animal.

When Alex and Sabrina are looking for movie reviews, how does the search engine prioritize the results?

• Based on the movie's release date

• By the total number of reviews

• By the relevance and authority of the review sites

• By the length of the reviews

What technology do Blake and Liam use to filter out spam websites from their search engine results?

• Machine learning algorithms

• User feedback systems

• Manual review by employees

• Popularity metrics