Networking Essentials - Chapter 11

Why is UDP well suited as the transport layer protocol for video applications?

• UPD provides acknowledgment of received data
• UDP provides a reliable session
• UDP provides flow control using windows
• UPD has low overhead

Which transport layer information is added to both the TCP and UDP headers?

• acknowledgment flag
• IP addresses
• window size
• port numbers

What type of applications are best suited for using UDP?

• applications that are sentitive to delay
• applications that require retransmission of lost segments
• applications that need reliable delivery
• applicaqtions that are sensitive to packet loss

What protocol header information is used at the transport layer to identify a target application?

• IP Address
• port number
• sequence number
• MAC address

A client device has initiated a secure HTTP request to a web browser. Which well-known port address number is associated with the destination address?

• 404
• 110
• 80
• 443

Which number or set of numbers represents a socket?

• 10.1.1.15
• 21
• 01-23-45-67-89-AB
• 192.168.1.1:80

What information is used by TCP to reassemble and reorder received segments?

• fragment numbers
• acknowledgement numbers
• port numbers
• sequence numbers

What type of port number is assigned by IANA to commonly used services and applications?

• registered port
• private port
• dynamic poort
• well-known port

Which protocol operates at the transport layer of the TCP/IP model and ensures reliable delivery of IP packets?

• TCP
• IP addresses
• UDP
• HTTP

What is a characteristic of UDP?

• It adds 20 bytes of overhead to application layer data
• It uses sequence numbers to reassemble segments
• It provides unreliable delivery of segments.
• It establishes sessions with a three-way handshake