Internet & how the Web works quiz – Web, Wi-Fi, DNS & Browsers

Question 1

What makes a webpage 'dynamic'?

Its content or behavior can change based on data, users, or application logic.

Content can be generated or updated based on application state or data It never uses HTML It must physically move on the screen It can be visited only once

Question 2

What is JavaScript commonly used for in a webpage?

Think behavior and interaction.

Assigning IPv6 addresses to routers Replacing all DNS servers Providing the physical Internet cable Adding programmable behavior and dynamic interaction

Question 3

What is a search-engine index?

Think of an organized catalog used to answer searches.

A DNS root-zone password A list of the user's local files A structured collection of information about discovered web content The browser's RAM usage

Question 4

A device receives a different local IP address after reconnecting. Which service likely assigned it automatically?

Home networks usually avoid manual addressing.

DHCP HTTPS CSS HTML

Question 5

What is a web application?

It behaves like software but is accessed through web technologies.

A router's operating system only Any file with a .web extension An interactive application delivered through a browser or web-based client A physical server rack

Question 6

Why are spaces sometimes shown as %20 in a URL?

Some characters need a safe URL representation.

It compresses the webpage by 20 percent Percent-encoding represents characters in a URL-safe form It means the server is 20 percent busy It hides the visitor's IP address

Question 7

Why can high jitter cause choppy Internet calls?

Real-time media expects timely packet arrival.

It reduces monitor resolution permanently It deletes the call history It changes the caller's IP into a domain name Packets arrive at uneven intervals, making smooth playback harder

Question 8

What is a CNAME record commonly used for?

It makes one DNS name act as an alias for another.

Assigning an Ethernet cable number Measuring a server's CPU temperature Pointing an alias hostname to another canonical hostname Storing a user's credit-card number

Question 9

Why does higher-resolution video generally require more data?

More visual information usually needs to be encoded.

Higher resolution changes the domain name More pixels and detail generally require a higher bitrate for comparable quality It requires more DNS servers It makes Wi-Fi radio waves physically larger

Question 10

What does an Internet Service Provider primarily do for a home user?

Think about who connects your home network to the wider Internet.

Creates every website the user visits Provides connectivity between the user's network and the Internet Stores all files on the user's computer Controls the user's web browser

Question 11

What does an MX record identify?

Think about receiving email for a domain.

The monitor used by a server Mail servers responsible for accepting email for a domain The Wi-Fi frequency of a domain The maximum size of a webpage

Question 12

What is a reverse proxy?

It sits in front of servers rather than acting for a browsing user.

A browser running in reverse order A server that receives client requests and forwards them to backend services A tool that changes IPv6 into HTML A cable that sends packets backward

Question 13

What does an HTTP 301 response indicate?

Think permanent redirect.

The Wi-Fi password is incorrect The page loaded successfully with no change The resource has been assigned a permanent new location The browser has insufficient RAM

Question 14

Why can thick walls weaken Wi-Fi?

Radio signals lose energy while passing through materials.

Walls force browsers to use HTTP Wi-Fi requires direct sunlight Building materials can absorb, reflect, or attenuate radio signals Walls delete IP addresses

Question 15

Why is router placement important for Wi-Fi coverage?

Radio signals are affected by distance and obstacles.

Central, unobstructed placement can improve signal distribution A router must physically touch every device Placement changes the registered domain name Routers work only beside windows