2.2.6 OSI Model and Data Encapsulation

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Which of the following tasks is associated with the session layer? - Data block breakdown - IP Address assignment - Connection Establishment - Port Number Assignment

- Connection Establishment

Match each Networking Function or device on the left with its assocaited OSI Model layer on the right. Application layer Presentation Layer Session Layer Transport Layer Network Layer Data link Layer Physical Layer HTTP translates data session ID number Port Number Router Switch Modem

Application Layer - HTTP Presentation Layer - Translates Data Session Layer - Session ID Number Transport Layer - Port Number Network Layer - Router Data Link Layer - Switch Physical Layer - Modem

What is the basic purpose of the OSI physical Layer? - Define when devices have access to the LAN - Maintain a list of known networks and neighboring routers - Define how physical network devices are identified on a network - Coordinate rules for sending and receiving electricla signals

Coordinate rules for sending and receiving electrical signals

In the OSI model, Which of the following functions are performed at the Presentation Layer? (Select Two) - Data encryption and compression - Data frame transmission - Network services - Data format Specifications - End-to-end Flow Control

Data Encryption and compression Data format specifications

Which of the following functions are performed by the OSI Transport Layer? (select Three) - Consistent Data formatting between dissimilar systems - Data segmentation and reassembly - Reliable Message Delivery - End-to-end flow control - Path identification and selection - Media access control, logical topology, and device identification - Packet formatting for delivery through the medium

Data Segmentation and reassembly Reliable message delivery End-to-End flow control

In the OSI model, which of the following functions are performed at the application layer? (Select Two) - Standard Setting for sending and recieving signals - Communication setup, maintenance, and teardown - Enabling of communication between network clients and services - Device control for data transmission rates - Integration of Network functionality into the host operating system

Enabling of communication between network clients and services Integration of network functionality into the host operating system

Which of the following are included as part of the data link layer specifications? (Select two) - Physical Topology - Digital Data conversion - Physcial network device identification - Data transmission between Hosts - Cable and connector Specifications

Physical Network Device identification Data transmission between hosts

Match each layer of the TCP/IP model on the left with the corresponding layer of the OSI model on the right. Each option on the left can be used more than once. Presentation Layer Data Link layer Application Layer Session Layer Network Layer Transport Layer Application Network Internetwork Transport

Presentation Layer - Application Data Link Layer - Network Application Layer - Application Session Layer - Application Network Layer - Internetwork Transport Layer - Transport

In the OSi model, what is the primary fuincation of the Network Layer? - Enable Communcation between network clients and services - Transmit data frames - Ensure that packets are delivered with no loss or duplication - Route Messages between networks

Route MEssages between Networks

During TCP/IP communication between two network hosts, information is encapsulated on the sending host and decapsulated on the recieving host using the OSI model. Match the information format on the left with the appropriate layer of the osi model on the right. segments packets frames bits Transport layer Network Layer Data link layer Physical Layer

Transport Layer - Segments Network Layer - Packets Data link layer - Frames Physcial Layer - Bits


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