APCSP Networks and the Internet 2 — Questions and Answers
Question 1: Which protocol is responsible for assigning IP addresses dynamically to devices on a network?
- DNS
- DHCP (Correct answer)
- HTTP
- FTP
Correct answer: DHCP
DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses to devices when they join a network.
Question 2: A company sends a large file across the internet. The file is broken into smaller units before transmission. What are these units called?
- Frames
- Segments
- Packets (Correct answer)
- Bytes
Correct answer: Packets
The internet uses packet switching, where data is broken into packets that are routed independently and reassembled at the destination.
Question 3: What is the primary purpose of a router on the internet?
- To convert analog signals to digital
- To forward packets toward their destination (Correct answer)
- To encrypt data before transmission
- To assign domain names to IP addresses
Correct answer: To forward packets toward their destination
Routers forward packets from one network to another, selecting the best path toward the packet's destination IP address.
Question 4: Which of the following best describes the difference between IPv4 and IPv6?
- IPv6 is slower but more secure than IPv4
- IPv6 uses 128-bit addresses, providing far more unique addresses than IPv4's 32-bit addresses (Correct answer)
- IPv4 supports wireless networks while IPv6 supports wired networks
- IPv6 eliminates the need for DNS
Correct answer: IPv6 uses 128-bit addresses, providing far more unique addresses than IPv4's 32-bit addresses
IPv6 uses 128-bit addresses, allowing approximately 3.4×10³⁸ unique addresses, compared to IPv4's ~4.3 billion addresses.
Question 5: A network uses fiber optic cables instead of copper cables. What is the primary advantage?
- Fiber optic cables are cheaper to install
- Fiber optic cables transmit data using light, enabling higher bandwidth over longer distances (Correct answer)
- Fiber optic cables eliminate the need for routers
- Fiber optic cables are immune to all forms of interference including electromagnetic
Correct answer: Fiber optic cables transmit data using light, enabling higher bandwidth over longer distances
Fiber optic cables use light pulses rather than electrical signals, enabling much higher bandwidth and longer transmission distances with less signal loss.
Question 6: What does 'bandwidth' refer to in the context of computer networks?
- The physical width of a network cable
- The number of devices connected to a network
- The maximum amount of data that can be transmitted per unit of time (Correct answer)
- The distance a signal can travel without repeating
Correct answer: The maximum amount of data that can be transmitted per unit of time
Bandwidth is the maximum rate of data transfer across a network path, typically measured in bits per second (bps).
Question 7: In a client-server model, which statement is most accurate?
- All devices share equal responsibility for storing and sending data
- The client stores all data and the server requests it
- The server provides resources or services, and clients request them (Correct answer)
- Clients and servers must be on the same local network
Correct answer: The server provides resources or services, and clients request them
In the client-server model, servers provide resources, data, or services, while clients initiate requests to access those resources.
APCSP Networks and the Internet 2
Which protocol is responsible for assigning IP addresses dynamically to devices on a network?