Encryption takes place at what layer?
Presentation
Error detection and recovery takes place at which layer?
Transport
Which layer establishes, maintains, and terminates communications between applications located on different devices?
Session
IP is implemented at which OSI model layer?
Network
Which layer handles the formatting of application data so that it will be readable by the destination system?
Presentation
Name some standards for the presentation?
JPEG, MPEG, GiF, MIDI
Packets are found at which layer?
Network
Which layer translates physical (MAC) and logical addresses?
Network
OSI stands for
Open Systems Interconnect
Bit Synchronization is handled at which layer?
physical
Bridges/switches operate at which layer?
Data link
What are the sublayers of the data link layer?
MAC and LLC (Logical link control)
Which layer is responsible for packet sequencing, acknowledgments, and requests for retransmission? -
Transport
Infrastructure as a Service (IaaS)
is a model where a company outsources the equipment used to support operations to another company.
Physical addressing is found at which layer of the OSI Model?
Datalink
PDU for layer 1
bit
PDU for layer 2
is a frame
PDU for layer 3
is a packet
PDU for layer 4
segment
PDU for layers 5,6,7
is data
PDU
protocol data unit is info delivered as a unit amoung peer entities of network containing info, or data.
What layer uses IP addressing
Layer 3 (Networking)
Layer 1 Devices
Physical Cable, NIC
Layer 2 devices
Data link layer- Frame, MAC adress, extended unique identifier, and switches.
Layer 3 Devices
Network- IP addresses, Router, Packet
Layer 4 Devices
Transport- TCP segment and UDP datagram.
Layer 5 Devices
Session layers- control protocols and tunneling
Layer 6
Application encryption ( SSL/TLS)
Layer 7
Your eyes w/e you see https://mail.google.com
Presentation layer converts
data from the application layer into a format that can be sent over the network
What layer of the OSI model do FTP and TFTP map?
application layer
Layer 2 protocols and technologies
MAC addresses, NIC, L2TP,PPP,STP, VLANs
Layer 3 protocols and technologies
Distance vectors, ARP, IPSec MPLS, ATM
Layer 4 protocols and technologies
TCP/UDP, error checking, Buffering Windowing,
Session layer protocols and technologies
NetBios, NFS, and SMB
Layer 6 protocols and technologies
Encryption, data compressing, TLS, SSL
Application layer protocols
SSH, DHCP,RTP,DNS, HHTP
What layer does a AP operate?
data link layer
What two layers does a switch operate?
2 and 3 (multilayer switch)
What OSI layer is responsible for establishing connection between two devices?
Session
Ackowledgement, sequencng and flow control are characterstics of which OSI?
Layer 4
Presentation layer makes
data presentable for the application layer