E-Commerce Infrastructure

What are the four key limitations of the current Internet identified in the slide content?

• Speed, cost, security, and reliability

• Bandwidth limitations, Quality of Service, network architecture, and wired infrastructure

• Latency, packet loss, server overload, and mobile incompatibility

• DNS failures, routing errors, ISP outages, and encryption weaknesses

What causes 'jerkiness' in video streaming and voice calls on the current Internet?

• Insufficient server storage

• Weak encryption protocols

• Latency (packet delays) affecting Quality of Service

• Incompatible browser versions

Which of the following best describes fiber-optic cable compared to traditional copper cable?

• Slower but cheaper and easier to install

• Faster, more secure, and with less interference

• The same speed but more durable

• Slower but with better signal range

What is the primary purpose of XML (eXtensible Markup Language)?

• To control the visual display of web pages in browsers

• To describe and structure data and enable data exchange between systems

• To manage server authentication and security

• To track user behaviour through cookies

Which web server software is most commonly used on Linux/Unix systems?

• Microsoft IIS

• Nginx

• Apache

• Cherokee

Which mobile browser holds approximately 55% of the mobile browser market share?

• Google Chrome

• Firefox

• Microsoft Edge

• Safari

Which email protocols are used for receiving email messages?

• SMTP and FTP

• POP3 and IMAP

• HTTP and HTTPS

• DNS and DHCP

What are cookies primarily used for on websites?

• To speed up server response times

• To remember user preferences, past behaviour, and login information

• To encrypt data transmissions

• To block unauthorised access to web pages

Which platform is described as the most prominent example of a wiki?

• WordPress

• Tumblr

• Wikipedia

• Reddit

What does VoIP technology enable that makes it commercially attractive?

• Faster broadband download speeds

• Transmitting voice, fax, and audio over the Internet, avoiding long-distance telephone charges

• Secure peer-to-peer file sharing

• Wireless synchronisation between mobile devices