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Cisco Certification OSI Model

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Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. What is the 'medium access controller'?
Physical layer.
Asynchronous Transfer Mode
The hardware that implements the MAC.
Combining 'Bits' into 'Bytes' - & 'Bytes' into 'Frames' - provides the functional and procedural means to transfer data between network entities and might provide the means to detect and possibly correct errors that may occur in the physical layer.

2. What does the acronym 'ATM' stand for?
Asynchronous Transfer Mode
48 bit address used to identify networking cards and appliances
Hardware address - Ethernet address - BIA - Burned in Address
Presentation layer.

3. In an OSI context What is considered 'media'?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
IEA RS232 - V.35. Cat 5 - RJ45
Cables - Pins - Electrical Signals
Media Access Control

4. What does the acronym 'ISDN' stand for?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Session layer.
Layer 2 - The Data Link layer.
ISDN - Integrated Services Digital Network

5. What does the acronym 'HDLC' stand for?
IEA RS232 - V.35. Cat 5 - RJ45
Application layer.
Wide Area Network
High-Level Data Link Control

6. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
It is a bit-oriented synchronous data link layer protocol developed by the International Organization for Standardization (ISO). The original ISO standards for HDLC are: ISO 3309
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Local Area Network
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

7. What is the 'MAC Layer' responsible for?
Physical layer.
Asynchronous Transfer Mode
Network layer.
The media access control (MAC) data communication protocol sub-layer - is a sublayer of the data link layer specified in the seven-layer OSI model (layer 2). It provides addressing and channel access control mechanisms that make it possible for sever

8. How does the third OSI model layer relate to administering routers?
Layer 2 - The Data Link layer.
48 bit address used to identify networking cards and appliances
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

9. What protocols correspond to the Presentation and Session layers?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Data Link layer.
Application: JPEG - BMP - TIFF - PICT - MPEG - WMV - AVI - ASCII - EBCDIC - MIDI - WAV - Session: Network File System (NFS) - Apple Session Protocol (ASP) - Structured Query Language (SQL) - Remote procedure call (RPC) - X Window
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

10. What is the difference between the TCP and UDP protocols?
Data Link layer.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
When require to communicate between different vendors across the same serial link.
Seven

11. What does the acronym 'MAC' stand for?
Physical - Data Link. Network - Transport
Media Access Control
48 Bits
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

12. What is layer 4 of the OSI model?
When require to communicate between different vendors across the same serial link.
Transport layer.
The media access control (MAC) data communication protocol sub-layer - is a sublayer of the data link layer specified in the seven-layer OSI model (layer 2). It provides addressing and channel access control mechanisms that make it possible for sever
Point to Point

13. What is the 'LLC Layer' responsible for?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Application layer.
The media access control (MAC) data communication protocol sub-layer - is a sublayer of the data link layer specified in the seven-layer OSI model (layer 2). It provides addressing and channel access control mechanisms that make it possible for sever
It provides multiplexing mechanisms that make it possible for several network protocols (IP - IPX - Decnet and Appletalk) to coexist within a multipoint network and to be transported over the same network media - and can also provide flow control and

14. What is layer 3 of the OSI model?
Theoretical
ATM is a standard switching technique - designed to unify telecommunication and computer networks. It uses asynchronous time-division multiplexing and it encodes data into small - fixed-sized cells.
Network layer.
Wide Area Network

15. What are some Physical Layer Protocols and Standards?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
MAC SubLayer - LLC SubLayer
IEA RS232 - V.35. Cat 5 - RJ45

16. What is layer 5 of the OSI model?
Data Link layer.
Seven
Session layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

17. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
High-Level Data Link Control
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
The hardware that implements the MAC.
ISDN - Integrated Services Digital Network

18. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Point to Point
Theoretical
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Application layer.

19. What is layer 2 of the OSI model?
It is a bit-oriented synchronous data link layer protocol developed by the International Organization for Standardization (ISO). The original ISO standards for HDLC are: ISO 3309
International Standards Organization
Data Link layer.
Seven

20. What is the EIA/TIA 232 protocol concerned with?
Layer 1 Protocol having to do with serial communication
Logicial Link Control
ISDN - Integrated Services Digital Network
Point to Point

21. What does the acronym 'WAN' stand for?
Hardware address - Ethernet address - BIA - Burned in Address
Transport layer.
Wide Area Network
Theoretical

22. What is the OSI model and why is it important in understanding networking?
Session layer.
OSI model classifies and organizes the tasks that hosts perform to prepare data for transport across the network. It most widely used method for understanding and talking about network communications
When require to communicate between different vendors across the same serial link.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

23. What does the acronym 'LLC' stand for?
OSI model classifies and organizes the tasks that hosts perform to prepare data for transport across the network. It most widely used method for understanding and talking about network communications
Logicial Link Control
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
It provides multiplexing mechanisms that make it possible for several network protocols (IP - IPX - Decnet and Appletalk) to coexist within a multipoint network and to be transported over the same network media - and can also provide flow control and

24. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
Provide a model to discribe how data moves from source device to destination device.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Asynchronous Transfer Mode
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

25. Frame Relay
IEA RS232 - V.35. Cat 5 - RJ45
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Theoretical
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

26. What is HDLC?
Media Access Control
It is a bit-oriented synchronous data link layer protocol developed by the International Organization for Standardization (ISO). The original ISO standards for HDLC are: ISO 3309
Layer 2 - The Data Link layer.
Data Flow layers.

27. What is the 'Data Link Layer' responsible for?

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28. What does the acronym 'ISO' stand for?
Layer 2 - The Data Link layer.
Open Source Interconnect
Theoretical
International Standards Organization

29. Where does troublingshooting alway start?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Data Link layer.
Physical Layer
Asynchronous Transfer Mode

30. How many Layers in the OSI Model?
Seven
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Application: JPEG - BMP - TIFF - PICT - MPEG - WMV - AVI - ASCII - EBCDIC - MIDI - WAV - Session: Network File System (NFS) - Apple Session Protocol (ASP) - Structured Query Language (SQL) - Remote procedure call (RPC) - X Window
Presentation layer.

31. Which OSI model layer is concerned with MAC addresses?
Seven
Layer 2 - The Data Link layer.
Point-to-Point Protocol over ATM
Wide Area Network

32. What is the Physical Layer responsible for?

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33. What does the acronym 'PPP' stand for?
Point to Point
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
The media access control (MAC) data communication protocol sub-layer - is a sublayer of the data link layer specified in the seven-layer OSI model (layer 2). It provides addressing and channel access control mechanisms that make it possible for sever
ATM is a standard switching technique - designed to unify telecommunication and computer networks. It uses asynchronous time-division multiplexing and it encodes data into small - fixed-sized cells.

34. What are considered the Data Flow layers?
Physical - Data Link. Network - Transport
It is a bit-oriented synchronous data link layer protocol developed by the International Organization for Standardization (ISO). The original ISO standards for HDLC are: ISO 3309
Open Source Interconnect
Provide a model to discribe how data moves from source device to destination device.

35. How bits are in a MAC address?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
48 Bits
Layer 2 - The Data Link layer.
Provide a model to discribe how data moves from source device to destination device.

36. What is the MAC address?
Point to Point
48 bit address used to identify networking cards and appliances
OSI model classifies and organizes the tasks that hosts perform to prepare data for transport across the network. It most widely used method for understanding and talking about network communications
Local Area Network

37. What does the acronym 'LAN' stand for?
Layer 2 - The Data Link layer.
Application layer.
MAC SubLayer - LLC SubLayer
Local Area Network

38. What does the acronym 'OSI' stand for?
Layer 2 - The Data Link layer.
Data Link layer.
Physical Layer
Open Source Interconnect

39. OSI layers are...
Theoretical
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
IEA RS232 - V.35. Cat 5 - RJ45
Session layer.

40. When would the PPP be used?
MAC SubLayer - LLC SubLayer
48 Bits
When require to communicate between different vendors across the same serial link.
Hardware address - Ethernet address - BIA - Burned in Address

41. What does the acronym 'PPPoA' stand for?
MAC SubLayer - LLC SubLayer
Point-to-Point Protocol over ATM
High-Level Data Link Control
Media Access Control

42. What is layer 6 of the OSI model?
Data Flow layers.
High-Level Data Link Control
Presentation layer.
ATM is a standard switching technique - designed to unify telecommunication and computer networks. It uses asynchronous time-division multiplexing and it encodes data into small - fixed-sized cells.

43. What does the acronym default 'HDLC' protocol stand for?
Network layer.
Application layer.
Open Source Interconnect
High Level Data Link Control

44. What is layer 1 of the OSI model?
Physical layer.
Data Flow layers.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

45. What are the first 4 layers of the OSI model called?
Combining 'Bits' into 'Bytes' - & 'Bytes' into 'Frames' - provides the functional and procedural means to transfer data between network entities and might provide the means to detect and possibly correct errors that may occur in the physical layer.
Media Access Control
Layer 1 Protocol having to do with serial communication
Data Flow layers.

46. What is layer 7 of the OSI model?
Logicial Link Control
Application layer.
ATM is a standard switching technique - designed to unify telecommunication and computer networks. It uses asynchronous time-division multiplexing and it encodes data into small - fixed-sized cells.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

47. What are are the 'Sub Layers' of the 'Data Link' Layer?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Data Link layer.
High-Level Data Link Control
MAC SubLayer - LLC SubLayer

48. What is ATM?
ATM is a standard switching technique - designed to unify telecommunication and computer networks. It uses asynchronous time-division multiplexing and it encodes data into small - fixed-sized cells.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Application layer.
OSI model classifies and organizes the tasks that hosts perform to prepare data for transport across the network. It most widely used method for understanding and talking about network communications

49. What are the advantages of the OSI model?
Open Source Interconnect
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Asynchronous Transfer Mode
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

50. What is the purpose of the OSI Model?
Transport layer.
Provide a model to discribe how data moves from source device to destination device.
The hardware that implements the MAC.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

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Cisco Certification OSI Model

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