Module 1: Quiz

Question 1

How did Licklider and his team in the early 1960s experiment with a precursor to the Internet?

Answer 1

Connecting two computers over a dial-up telephone line

This experiment was a key step in developing network communication.

Question 2

What is the Domain Name System (DNS) designed to do primarily?

Answer 2

Translate domain names into IP addresses

DNS is essential for navigating the Internet by converting user-friendly domain names into machine-readable IP addresses.

Question 3

What is the architectural design of the Internet protocol stack based on?

Answer 3

Layers

The layered architecture helps in organizing protocols and simplifying network interactions.

Question 4

Both the data link and transport layer protocols may provide error correction.

True/False

Answer 4

True

Error correction is crucial for maintaining data integrity across networks.

Question 5

What allows for communication between the application layer and transport layer?

Answer 5

Sockets

Sockets provide a standard way to send and receive data between applications over a network.

Question 6

Which of the following protocols belong to the application layer?

* UDP
* DNS
* IP
* Ethernet

Answer 6

DNS (Domain Name Service)

Application layer protocols facilitate user-level services and applications.

Question 7

Which two protocols belong to the transport layer? Select all that apply.

* HTTP
* IP
* TCP
* UDP

Answer 7

TCP, UDP

Both TCP and UDP are critical for data transmission between hosts.

Question 8

When an application sends a packet of information across the network, this packet travels down the IP stack and undergoes what process?

Answer 8

Encapsulation

Encapsulation is the process of wrapping data with protocol information at each layer of the stack.

Question 9

According to the end-to-end principle, where should most of the Internet’s functionality/intelligence be implemented?

Answer 9

At the edges of a network

The end-to-end principle suggests that features should only be implemented where they are needed, typically at the endpoints.

Question 10

What is the difference between hubs, bridges, and routers?

Answer 10

They operate on different layers of the IP stack

Hubs, bridges, and routers serve distinct roles in managing network traffic at various layers.