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.

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

Question 2

What is JavaScript commonly used for in a webpage?

Think behavior and interaction.

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

Question 3

What is a search-engine index?

Think of an organized catalog used to answer searches.

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

HTTPS DHCP HTML CSS

Question 5

What is a web application?

It behaves like software but is accessed through web technologies.

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

Question 6

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

Some characters need a safe URL representation.

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

Question 7

Why can high jitter cause choppy Internet calls?

Real-time media expects timely packet arrival.

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

Question 8

What is a CNAME record commonly used for?

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

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

Question 9

Why does higher-resolution video generally require more data?

More visual information usually needs to be encoded.

It requires more DNS servers Higher resolution changes the domain name More pixels and detail generally require a higher bitrate for comparable quality 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 Controls the user's web browser Stores all files on the user's computer

Question 11

What does an MX record identify?

Think about receiving email for a domain.

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

Question 12

What is a reverse proxy?

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

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

Question 13

What does an HTTP 301 response indicate?

Think permanent redirect.

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

Question 14

Why can thick walls weaken Wi-Fi?

Radio signals lose energy while passing through materials.

Building materials can absorb, reflect, or attenuate radio signals Wi-Fi requires direct sunlight Walls force browsers to use HTTP 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 Routers work only beside windows Placement changes the registered domain name A router must physically touch every device