Big Idea 4 APCSP

Which of the following best explains how redundancy in a network contributes to fault tolerance in data transmission?

• It ensures data is always encrypted before transmission.
• It provides multiple physical connections to reduce latency.
• It enables rerouting of data if a connection fails.
• It increases bandwidth to improve transfer speed.

A company is using IPv4 addresses for their devices. Which of the following best explains why IPv6 was introduced as a replacement?

• IPv4 is less secure than IPv6.
• IPv6 addresses are easier to remember.
• IPv4 ran out of addressable space.
• IPv6 uses 32-bit addressing like IPv4.

How does TCP differ from UDP in data transmission across networks?

• TCP sends larger packets than UDP.
• UDP retransmits lost packets automatically.
• TCP ensures reliable delivery by retransmitting lost packets.
• UDP is a secure protocol while TCP is not.

Which protocol is responsible for addressing and routing data packets on the Internet?

• TCP
• IP
• HTTP
• FTP

A video streaming application uses UDP instead of TCP. What is the most likely reason for this decision?

• UDP uses less bandwidth than TCP.
• UDP provides stronger encryption.
• UDP is faster because it does not check for lost packets.
• UDP ensures data is delivered in order.

Which of the following best illustrates the scalability of the Internet?

• Devices must be on the same subnet to communicate.
• IP addresses are restricted to fixed geographic regions.
• New devices can join the Internet using existing protocols.
• The Internet requires a central authority to expand.

Which scenario best demonstrates how routing increases reliability on the Internet?

• A firewall prevents unauthorized data from entering a network.
• Data reaches its destination even when a connection is lost.
• Packets are always delivered in the order they were sent.
• A domain name is translated into a numeric IP address.

Why is the World Wide Web considered software and not hardware?

• It includes all computers connected to the Internet.
• It is part of the TCP/IP protocol stack.
• It is the physical layer of the Internet.
• It operates on top of the Internet to deliver content.

Which of the following protocols is used to transfer web pages over the Internet?

• TCP
• IP
• HTTP
• DNS

What is the primary purpose of DNS in network communication?

• To assign MAC addresses to devices.
• To encrypt web traffic.
• To translate domain names to IP addresses.
• To route data packets through the network.