Network Services and Protocols

Which of the following identifies only the namespace of a resource without reference to the protocol?

• URN
• IP
• HTTP
• URL

What protocol governs the way a web server and a web client interact?

• FTP
• HTTP
• TCP
• IP

Which layer of the TCP/IP model does the Hypertext Transfer Protocol (HTTP) operate at?

• Application Layer
• Network Access Layer
• Internetwork Layer
• Transport Layer

What is the most common internetwork protocol used to identify end hosts and route packets to destination hosts?

• Hypertext Transfer Protocol (HTTP)
• Ethernet
• Transmission Control Protocol (TCP)
• Internet Protocol (IP)

What does TCP do if the sender does not receive an acknowledgment within a certain period?

• Sends the entire message again
• Stops the transmission completely
• Ignores the missing acknowledgment
• Assumes the segments were lost and retransmits only the missing portion of the message

What is the role of a server in network services?

• To browse the internet
• To design websites
• To provide services to other hosts (clients)
• To store data locally

Which layer of the TCP/IP model ensures that IP packets are sent reliably and any missing packets are resent?

• Transport Layer
• Internetwork Layer
• Network Access Layer
• Application Layer

Which protocol helps ensure reliable delivery of data packets by breaking up a message into segments?

• Transmission Control Protocol (TCP)
• User Datagram Protocol (UDP)
• File Transfer Protocol (FTP)
• Simple Mail Transfer Protocol (SMTP)

How does TCP ensure reliable delivery of data packets?

• By prioritizing certain data packets over others
• By encrypting all data packets
• By compressing data packets for faster transmission
• By numbering segments in sequence and retransmitting missing segments

What is the specific protocol at the Network Access Layer dependent on?

• The size of the data packets
• The number of clients connected to the server
• The type of media and transmission methods used in the physical network
• The speed of the internet connection