CompTIA Network+: OSI Model Layers & Data Encapsulation Flashcards
Which statement correctly characterizes the functions of the OSI Model?
It is a method of describing the functions of a networking system to allow communication
Which device or service would not operate at the physical layer of the OSI Model?
IP Address
The physical address applied by the data link layer of the OSI Model has which features?
It is variable address that can be changed
Which type of traffic management service occurs at the network layer of the OSI Model?
Routing
If you needed to be certain that your data transmissions are being received, which type of connection and protocol should be used?
Connection-oriented and TCP
Which type of communication would be analogous to a simplex transmission?
Two people using walkie-talkies
Which common services occur at the presentation layer of the OSI Model?
Compression
Encryption
Which protocols operate at the application layer of the OSI Model?
SMTP
HTTP
The TCP header specifies which value to ensure that data is processed by the correct application?
Port
Which TCP flag is used to gracefully terminate a session between two systems?
FIN
A fixed payload typically has which benefits or characteristics?
They are always the same size
They can be more efficient than variable payloads
Which command can be used to determine the MTU optimal size?
Ping
