ITN Chapter 3
Which message delivery option is used when all devices need to receive the same message simultaneously?
Broadcast
Transport protocol
Managing the individual conversations between web servers and web clients
The process of converting information from one format into another acceptable for transmission.
Message encoding
What type of message is sent to a specific group of hosts?
Multicast
The MAC address of a PC does not change when the PC is moved to a different network because the MAC address is embedded in the ___________ of the PC.
NIC
If the default gateway is configured incorrectly on the host, what is the impact on communications?
The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.
What is the general term that is used to describe a piece of data at any layer of a networking model?
protocol data unit
Network access protocol
Preparing packets to be transmitted over the network media
Why are open standards important in the data communications industry?
They enable interoperability between software and hardware from different vendors.
What layer of the TCP/IP protocol model determines the best path through the network?
Transport
Which layer of the OSI model defines services to segment and reassemble data for individual communications between end devices?
Transport
What three requirements are defined by the protocols used in network communications to allow message transmission across a network?
message encoding, message size, delivery options
Internet Protocol (IP)
Taking the segments from the transfer protocol, encapsulating them into packets, and assigning them with appropriate addresses
Which address does a NIC use when deciding whether to accept a frame?
Destination MAC address
Refer to the exhibit. HostA is attempting to contact ServerB. Which two statements correctly describe the addressing that HostA will generate in the process?
A frame with the destination MAC address of RouterA. A packet with the destination IP address of ServerB.
If Host were to transfer a file to the server, what layers of the TCP/IP model would be used?
Application, transport, Internet, and network access layers
At which layer of the OSI model would a physical address be encapsulated?
Data link layer
Which logical address is used for delivery of data to a remote network?
Destination IP address
What method can be used by two computers to ensure that packets are not dropped because too much data is being sent too quickly?
Flow control
Which three acronyms/initialisms represent standards organizations?
IANA, IEEE, IETF
The process of placing one message format inside another message format.
Message encapsulation
Which three layers of the OSI model are comparable in function to the application layer of the TCP/IP model? (Choose three.)
Presentation, session, application
What is an advantage of using standards to develop and implement protocols?
Products from different manufacturers can interoperate successfully.
What are proprietary protocols?
Protocols developed by organizations who have control over their definition and operation
What is the purpose of protocols in data communications?
Providing the rules required for a specific type of communication to occur.
What type of delivery uses data link layer addresses?
Remote delivery using routers
Message sizing
The process of breaking up a long message into individual pieces before being sent over the network
Application protocol
governing the way a web server and a web client interact
