CompTIA Network+ (N10-009)
exam with answers
Transmission Control Protocol (TCP)
Reliable way to send segments across networks.
Two way information.
A fundamental protocol within the Internet
protocol suite that consists of is set of rules that
govern the exchange of data
The way hand shake
SYN, SYN-ACK, ACK.
User Diagram Protocol (UDP)
Connectionless protocol. Unreliable.
TCP Data
Segments
,UDP data
Datagram
Layer 4 Data Type
segments
UDP is useful for
Audio and video
Windowing
Allows the clients to adjust data in each segment
Buffering
Occurs when devices allocate memory to store
segments if bandwidth is not readily available.
,Layer 4 devices
TCP and UDP
WAN accelerators
Load balancers
Firewalls (blocking ports and firewalls)
Session layer
Keeps conversation separate to prevent
intermingling data
Set up session
Checking user credentials and assigning numbers
to sessions to help identify them.
Maintain session
Data transfers back and forth across the network
, Tear down session
Ending of a session after the transfer is done or
when the other party disconnects.
Layer 5 devices
H.323
NetBIOS
H.323
Used to set up, maintain, and tear down voice and
video connections.
RTP (Real-time Transport Protocol)
Streaming Audio or video. Two way format like
phone call or FaceTime.
NetBIOS
Used to share files over a network.
exam with answers
Transmission Control Protocol (TCP)
Reliable way to send segments across networks.
Two way information.
A fundamental protocol within the Internet
protocol suite that consists of is set of rules that
govern the exchange of data
The way hand shake
SYN, SYN-ACK, ACK.
User Diagram Protocol (UDP)
Connectionless protocol. Unreliable.
TCP Data
Segments
,UDP data
Datagram
Layer 4 Data Type
segments
UDP is useful for
Audio and video
Windowing
Allows the clients to adjust data in each segment
Buffering
Occurs when devices allocate memory to store
segments if bandwidth is not readily available.
,Layer 4 devices
TCP and UDP
WAN accelerators
Load balancers
Firewalls (blocking ports and firewalls)
Session layer
Keeps conversation separate to prevent
intermingling data
Set up session
Checking user credentials and assigning numbers
to sessions to help identify them.
Maintain session
Data transfers back and forth across the network
, Tear down session
Ending of a session after the transfer is done or
when the other party disconnects.
Layer 5 devices
H.323
NetBIOS
H.323
Used to set up, maintain, and tear down voice and
video connections.
RTP (Real-time Transport Protocol)
Streaming Audio or video. Two way format like
phone call or FaceTime.
NetBIOS
Used to share files over a network.
