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Latest Submission Grade: 85.71%
If a TCP socket is ready and listening for incoming connections, it's in the ______ state.
The LISTEN state means that a port is waiting for something to connect to it.
The instantiation of an endpoint in a potential TCP connection is known as a ______.
A socket connects the networking stack of an operating system to applications.
HTTP is an example of a(n) ______ layer protocol.
There are lots of application layer protocols, but HTTP is one of the most common ones.
Application layer data lives in the _____ section of the transport layer protocol.
The payload section of one layer contains the content of the layer above it.
How many bits are used to direct traffic to specific services running on a networked computer?
A port is a 16-bit number that's used to direct traffic to specific services running on a networked computer.
The transport layer handles multiplexing and demultiplexing through what type of device?
The transport layer handles multiplexing and demultiplexing through ports.
What port does the File Transfer Protocol (FTP) typically listen on?
FTP typically listens on port 21.
Which field in a Transmission Control Protocol (TCP) header is chosen from ephemeral ports?
A source port is a high-numbered port chosen from a special section of ports known as ephemeral ports.
Which field in a Transmission Control Protocol (TCP) header is not typically used in modern networking?
The urgent pointer field is not typically used in modern networking. This field points out particular segments that might be more important than others, but is a feature of TCP that hasn't really ever been adopted.
The checksum doesn't compute for a packet sent at the Internet Protocol (IP) level. What will happen to the data?
Connection-oriented protocols protect against dropped data by forming connections and using what type of constant stream?
Sequence numbers allow the data to be put back together in the correct order.
In which scenario should you use the User Datagram Protocol (UDP)?
You are sending a very small amount of information that you need the listening program to respond to immediately. Which Transmission Control Protocol (TCP) flag will be used?
The PSH flag will be used to push the information immediately.
Which Transmission Control Protocol (TCP) flag is used to make sure the receiving end knows how to examine the sequence number field?
The SYN flag is used to make sure the receiving end knows how to examine the sequence number field.