Internet and Networking Flashcard

Front

Which of the following statements best describes the “nuts and bolts” view of the Internet? The Internet is an infrastructure providing programming interfaces to applications. The Internet consists of interconnected end systems and packet switches, using links of varying transmission rates. The Internet is a virtual space for application developers to test network theories. The Internet guarantees end-to-end connection for reliable communication.

Back

The Internet consists of interconnected end systems and packet switches, using links of varying transmission rates.

Front

A user experiences significant queuing delays during online gaming. Which factor is most likely the cause?

Back

Traffic intensity exceeding the outgoing transmission rate.

Front

Which protocol layer is responsible for routing packets from the source to the destination across the Internet?

Back

Network Layer

Front

Which layer of the OSI model is responsible for encoding, encrypting, and compressing data for transmission?

Back

Presentation Layer

Front

What is a primary advantage of the Peer-to-Peer (P2P) application architecture over the Client-Server architecture?

Back

It does not require a permanent server, allowing for self-scalability.

Front

Why is the "single mega-server" approach unsuitable for large-scale video streaming platforms like Netflix?

Back

It creates a single point of failure and network congestion.

Front

What is the primary reason for using Content Delivery Networks (CDNs) in video streaming?

Back

To ensure low-latency delivery of video streams by storing copies at multiple geographically distributed sites.

Front

In the transport layer, what is the main difference between TCP and UDP?

Back

TCP ensures reliable, in-order delivery, while UDP offers unreliable, connectionless service.

Front

Why does the User Datagram Protocol (UDP) lack congestion control mechanisms?

Back

It is intended for applications that tolerate loss and prioritize speed, like DNS or video streaming.

Front

If a transport-layer segment is received with a corrupted checksum, what typically happens?

Back

The segment is discarded, and a retransmission is requested.