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• identifies the communicating applications
• identifies multiple conversations between the hosts
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Which two options represents layer 4 addressing?
• identifies the communicating applications• identifies multiple conversations between the hosts
What 2 options represent layer 4 addressing in OSI?
No n bom#
What two options represents layer four addressing in the osi model?
Layer 4 usually uses segments, layer 3 are packets, layer 2 are frames. Layer 4 uses either tcp (SYN and ACKS) and UDP (connectionless) with port numbers
Which two options represent Layer 4 addressing identifies the destination network identifies source and destination hosts identifies the communicating applications identifies multiple con?
- identifies the communicating applications - identifies multiple conversations between the hosts (Source CCNA 1)
What two optioins represent layer 4 addressing?
• identifies the communicating applications• identifies multiple conversations between the hosts
What represent layer 4 addressing?
NAT, network address translation, meaning that several segments of networks can be addressed.
Which two layers of the OSI model does a WAN operate?
According to Cisco Curriculum Semester 4 1.2.1.1 As described in relation to the OSI reference model, WAN operations focus primarily on Layer 1 and Layer 2. WAN access standards typically describe both Physical layer delivery methods and Data Link layer requirements, including physical addressing, flow control, and encapsulation.
What layer creates a virtual circuit before transmitting between two end stations?
Layer 4 transport
What is the encapsulation process for each layer in the OSI model?
In the OSI model, encapsulation occurs as data is passed down through the layers. At the Application layer (Layer 7), data is created and then passed to the Presentation layer (Layer 6) for formatting. The Session layer (Layer 5) manages sessions, while the Transport layer (Layer 4) adds headers for segmentation and reliability. As data moves down to the Network layer (Layer 3), it receives IP addressing, followed by the Data Link layer (Layer 2), which adds MAC addressing and framing, and finally, the Physical layer (Layer 1) transmits the raw bits over the physical medium. Each layer adds its own header (and sometimes footer) to the data, forming a protocol data unit (PDU) specific to that layer.
What is true regarding network layer addressing?
The three correct options are: 3. Hierarchical Explanation: By design, layer three addressing is hierarchical, as you can group hosts in different networks. 4. Uniquely identifies each host Explanation: Each host has a unique address inside its network. 6. Contains a network portion Explanation: For example, in an IP (v4) address a portion of the most significant bits identify the network the host belongs to.1.It supports data communications between networks 2.It prevents broadcasts 3.It uniquely identifies each host
What is the two dimensional coordination number of a molecule in square close packed layer?
In square close-packed layer, a molecule is in contact with four of its neighbours. Therefore, the two-dimensional coordination number of a molecule in square close-packed layer is 4.
How many layers are in the OSI model?
The OSI 7 layer model descibes the theoretical levels of networking on a computer Layer 1 Physical Layer - actual network cable and connectors Layer 2 Data Link Layer - network address (MAC) and packet switching Layer 3 Network Layer - Internet Protocol (IP) - addressing and packet routing Layer 4 Transport Layer - Transmission Control Protocol (TCP) - packet sequencing & error correction Layer 5 Session Layer - Connection control for repeated send/receive (a session) Layer 6 Presentation Layer - presenting information to application in correct format LAyer 7 Application Layer - actual display/control of information, layout etc. for two computers to communicate -example chat program the following would occur user types into a chat program on computer A (7) application accepts input and decides what to do with it (6) a connection is requested to send to computer B (5) the message is broken into pieces and encpsulated within a packet (which includes the address to send to and the address from which it came) Packets are given a sequence number(4)(3) Packet sent across the network using the addressing information to determine where to go to(3)(2)(1) on Computer B the revers happens - packet is put back together - addressing information is removed and eventually displayed on the screen.
