23.Process-to-Process Delivery: UDP, TCP, and SCTP

Urgent data requires the urgent pointer field as well as the URG bit in the _______ field.

• control
• offset
• sequence number
• none of the above

To accomplish flow control, TCP uses a ___________ window protocol.

• limited-size
• sliding
• fixed-size
• none of the above

UDP and TCP are both _______ layer protocols.

• data link
• network
• transport
• none of the above

In TCP, one end can stop sending data while still receiving data. This is called a ______.

• half-close
• half-open
• one-way termination
• none of the above

In SCTP, the acknowledgment number and window size are part of each ________.

• data chunk
• control chunk
• a or b
• none of the above

A connection in SCTP is called an ____________.

• negotiation
• association
• transmission
• none of the above

An ACK segment, if carrying no data, consumes ______ sequence number(s).

• no
• one
• two
• none of the above

The association identifier in SCTP is __________________.

• a unique verification tag
• a combination of logical and port addresses
• either a or b
• none of the above

In SCTP, a data chunk is numbered using ________.

• a TSN
• an SI
• an SSN
• none of the above

The bytes of data being transferred in each connection are numbered by TCP. The numbering starts with a __________________.

• 0
• 1
• randomly generated number
• none of the above