Term
| What are the 7 layers of the OSI Model (in order)? |
|
Definition
Please Do Not Thow Sausage Pizza Away 1. Physical Layer 2. Data Link Layer 3. Network Layer 4. Transport Layer 5. Session Layer 6. Presentation Layer 7. Application Layer |
|
|
Term
| What is the purpose of the layer 1 of the OSI Model? |
|
Definition
Sets standards for sending and receiving electrical signals between devices and describes how the BITS are converted to electric pulses, radio waves, or pules of light. |
|
|
Term
| What are some hardware devices associated with the Physical Layer? |
|
Definition
| Transmission media, Media connectors, transievers, modems, repeaters, hubs, multiplexers, CSU/DSUs, Wireless Access Points (WAP) |
|
|
Term
| What two layers make up the Data Link Layer of the OSI model? |
|
Definition
The Media Access Control (MAC) and Logical Link Control sub-layers make up the Data Link Layer |
|
|
Term
| What layer is responsible for adding frame start and stop information into a packet? |
|
Definition
| Media Access Control sub-layer |
|
|
Term
| What sub-layer is responsible for adding the Cyclical Redundancy Check (CRC) for error checking? |
|
Definition
| Media Access Control sub-layer |
|
|
Term
| What sub-layer is responsible for converting frames into BITS to be sent across the network? |
|
Definition
| Media Access Control sub-layer |
|
|
Term
| What sub-layer is responsible for identifying network devices and network topologies in preperation for media transmission? |
|
Definition
| Media Access Control sub-layer |
|
|
Term
| What sub-layer is responsible for defining an address for each device on the network? |
|
Definition
| Media Access Control sub-layer |
|
|
Term
| What sub-layer is responsible for controlling access to the transmission medium? |
|
Definition
| Media Access Control sub-layer |
|
|
Term
|
Definition
| Logical Link Control sub-layer |
|
|
Term
| What sub-layer is responsible for maintaining orderly deliver of frames though sequencing? |
|
Definition
| Logical Link Control sub-layer |
|
|
Term
| What sub-layer is responsible for providing an interface between the MAC Layer and upper layer protocols? |
|
Definition
| Logical Link Control sub-layer |
|
|
Term
| What sub-layer is responsible for controlling the folow or rate of transmissions? |
|
Definition
| Logical Link Control sub-layer |
|
|
Term
| What sub-layer is responsible for ensuring erro-free reception of messages by retransmitting? |
|
Definition
| Logical Link Control sub-layer |
|
|
Term
| What sub-layer is responsible for converting data into an acceptable for for the upper layers? |
|
Definition
| Logical Link Control sub-layer |
|
|
Term
| What sub-layer is responsible for removing framing information from the packet and forwading the message to the network layer? |
|
Definition
| Logical Link Control sub-layer |
|
|
Term
| What sub-layer is responsible for providing a way for upper layers of the OSI model to use any MAC layer protocol? |
|
Definition
| Logical Link Control sub-layer |
|
|
Term
| What sub-layer is responsible for defining Service Access Points (SAPs) by tracking and managing different protocols? |
|
Definition
| Logical Link Control sub-layer |
|
|
Term
| What are the two methods of communications provided by the LLC? |
|
Definition
| Connectionless and connection-oriented |
|
|
Term
| How are frames sent in a connectionless communications channel? |
|
Definition
| Without any acknowlegement of receipt. |
|
|
Term
| How are frames sent in a connection-oriented communications channel? |
|
Definition
1. Connection is established between sender and reciever.
2. Receipt of a frame is always acknowleged.
3. Frames are resent any time a receipt is not acknowleged. |
|
|
Term
| What devices are perform functions on the Data Link Layer? |
|
Definition
-NICs with external transievers
-Switch
-Bridge |
|
|
Term
| What is a method of identifying a devices that works on the data link layer? |
|
Definition
| Devices that use the MAC address to make decisions about incomming or outgoing frames operate at the Data Link Layer |
|
|
Term
| Which layer maintains the addresses of neighboring routers? |
|
Definition
|
|
Term
| Which layer maintains a list of known networks? |
|
Definition
|
|
Term
| Which layer determins the next point to which data should be sent? |
|
Definition
|
|
Term
| What do routers use to determine the best path to taken when routing a datagram? |
|
Definition
| hops, link speed, and link reliability |
|
|
Term
| What layer transmits information as Bits? |
|
Definition
|
|
Term
| What layer transmits information as datagrams? |
|
Definition
|
|
Term
| What layer transmits information as packets? |
|
Definition
|
|
Term
| What does the network layer ensure? |
|
Definition
| Data arrives at it's intended destination. |
|
|
Term
| What layer does the IP protocol operate on? |
|
Definition
|
|
Term
| What layer does the IPX protocol operate on? |
|
Definition
|
|
Term
| What layer does the NetBEUI protocol operate on? |
|
Definition
|
|
Term
| What layer does the DDP protocol operate on? |
|
Definition
|
|
Term
Which protocol has the below properties:
-Connectionless communications
-Treats each datagram independtly (fragmented or un-sequenced)
-Data delivery to the location is the only concern |
|
Definition
|
|
Term
Which protocol has the below properties:
-Extended version of NetBIOS
-Cannot support routing between multiple networks
-Must piggyback off another protocol for operation over multiple networks |
|
Definition
| Network Basic input / Output System Extended User Interface (NetBEUI) |
|
|
Term
Which protocol has the below properties:
-Works with AppleTalk protocol |
|
Definition
| Datagram Delivery Protocol (DDP) |
|
|
Term
| Layer 3 uses ______ ______ for identifying hosts and making routing decisions. |
|
Definition
|
|
Term
| What uses IP address that identify both the logical network and host addresses? |
|
Definition
|
|
Term
| What protocol will use an 8-ditit hexadecimal number for the network called the Internal Network? |
|
Definition
|
|
Term
| The _______ protocol uses a network number ranging from 1-65,278 and a host number ranging from 1 - 253? |
|
Definition
|
|
Term
| What hardware devices are used in the network layer/ |
|
Definition
| Routers, layer 3 switches |
|
|
Term
| Devices that operate on the network layer use _____ _____ to make forwarding and receiving decision. |
|
Definition
|
|
Term
| What is the difference between the decision making process of layer 2 and 3 devices? |
|
Definition
| Layer 2 devices use MAC addresses and Layer 3 devices use logical addresses. |
|
|
Term
| What does the Transport layer provide? |
|
Definition
| Transition layer betwen the upper and lower layers of the OSI model |
|
|
Term
| The transport layer provides end-to-end _____ _____ functions. |
|
Definition
|
|
Term
| What are the Transport layers three flow control functions? |
|
Definition
1. Port Identification
2. Message Segmentation and combination
3. Connection Services |
|
|
