Network Models Flashcards
Where does a hub send data?
Only to the receiving system
Only to the sending system
To all the systems connected to the hub
To all the systems connected to the hub
Data comes into a hub through one wire and is then sent out through all the other wires. A hub sends data to all the systems connected to it
What uniquely identifies every NIC?
IP address
Media access control address
ISO number
Media access control address
The unique identifier on a network interface card is called the media access control (MAC) address
What Windows utility do you use to find the MAC address for a system?
ipconfig /all
ipcfg /all
ping
ipconfig /all
All versions of Windows use ipconfig /all from the command line to determine the MAC address
A MAC address is known as a(n) _______________ address.
IP
logical
physical
physical
The MAC address is a physical address
A NIC sends data in discrete chunks called _______________.
sections
frames
layers
frames
Data is sent in discrete chunks called frames. Networks use frames to keep any one NIC from hogging the wire
Which MAC address begins a frame?
Receiving system
Sending system
Network
Receiving system
The frame begins with the MAC address of the receiving NIC, followed by the MAC address of the sending NIC, followed, in turn, by type of encapsulated data, the data, and FCS
A frame ends with a special bit called the frame check sequence (FCS). What does the FCS do?
Cycles data across the network
Verifies that the MAC addresses are correct
Verifies that the data arrived correctly
Verifies that the data arrived correctly
The data is followed by a special bit of checking information called the frame check sequence, which the receiving NIC uses to verify that the data arrived correctly
Which of the following is an example of a MAC address?
0–255
00–50–56–A3–04–0C
SBY3M7
00–50–56–A3–04–0C
A MAC address is a 48-bit value, and no two NICs ever share the same MAC address—ever. 00–50–56–A3–04–0C is a MAC address. Answer D (192.168.4.13) is an IP address
Which layer of the TCP/IP model controls the segmentation and reassembly of data?
Presentation layer
Session layer
Transport layer
Transport layer
The Transport layer controls the segmentation and reassembly of data
Which layer of the OSI seven-layer model keeps track of a system’s connections to send the right response to the right computer?
Application layer
Session layer
Transport layer
Session layer
The Session layer keeps track of a system’s connections to ensure that it sends the right response to the right computer
