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Which layer determines the route a packet takes from sender to sender to receiver?
Network Layer
Explain the difference between a PDU and a datagram?
A PDU (Protocol Data Unit) is defined by which layer it is in. In the physical layer and network layer, it is synonymous with the packet, in the data link layer, it is the frame. In the transport layer, it is a datagram for UDP. A datagram holds one or more PDU's, as it is the basic unit of transferring information via packet switching.
What network layer protocol does the traceroute utility use to obtain its information about paths between a source and destination?
ICMP
Why switch operates at data link layer?
Switches operate at the data link layer (Layer 2) of the OSI model primarily to facilitate the efficient transfer of data frames between devices within the same local area network (LAN). By using MAC addresses, switches can intelligently forward data to the correct destination, reducing network congestion and improving overall performance. Additionally, operating at this layer allows switches to perform functions like error detection and control of data flow, enhancing reliability in communication.
What acronym is used to reference the data link sublayer that identifies the network layer protocol encapsulated in the frame?
LLC Logical Link Control
What is the difference between network layer and network layer protocol?
A network layer refers to one of the actual 7 layers. The network layer protocol is actually the system it uses, possibly the order that the layers are done by?
List the layers of the internet model?
seven
Cimp belongs to which layer of the 5 layers?
ICMP belongs to layer 3 - the network layer (of the 7 OSI layers)
Which layer is absent in broadcast network?
network layer
What layer in osi does ip operate?
IP operates at layer 3, this is the NETWORK LAYER in the OSI Model. Network+ Guide to Networks Fifth Edition Ch02, pg56, Figure 2-7
What layer of OSI Model is IP?
TCP operates at Layer 4 which is Transport of the OSI Model!
In 7 layers of OSI MODEL which layer connection and termination occurs?
physical layer Data Link Layer Network Layer Transport layer session layer Presentation layer Application layer
Which network layer protocol is responsible for routing packets on the network?
The network layer is the layer that is responsible for routing packets on the network. This is the layer in which Internet protocol operates. In the seven layer OSI model, the network layer is the third layer from the bottom.
The dns protocol is at what layer of the OSI model?
DNS is an application layer protocol. The application layer of the OSI model is the layer closest to the user and provides network services to the applications of the user. Examples of protocols that operate at the application layer are: DNS, FTP, TFTP, SNMP, TELNET, RLOGIN, SMTP, MIME, NFS, FINGER, BOOTP and SMB.
How many layer in osi modele?
There are 7 layers in the OSI model which are from top to bottom: application layer / presentation layer / session layer / transportation layer / network layer / data link layer / physical layer
What provides an excellent tool for explaining how a network works?
The OSI 7-Layer model.
What layer programs access the network?
Network Layer
