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Cisco Certification OSI Model

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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 Mnemonic phrase for remembering OSI layers ordered 1 to 7?
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
Point to Point
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

2. 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.
Local Area Network
Logicial Link Control
Data Link layer.

3. What are are the 'Sub Layers' of the 'Data Link' Layer?
MAC SubLayer - LLC SubLayer
High-Level Data Link Control
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.
Presentation layer.

4. What does the acronym 'PPPoA' stand for?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Point-to-Point Protocol over ATM
ISDN - Integrated Services Digital Network
High Level Data Link Control

5. In an OSI context What is considered 'media'?
Seven
International Standards Organization
Cables - Pins - Electrical Signals
Theoretical

6. What is the Physical Layer responsible for?

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7. What does the acronym 'OSI' stand for?
Open Source Interconnect
Seven
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.
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

8. How does the third OSI model layer relate to administering routers?
48 bit address used to identify networking cards and appliances
Seven
ISDN - Integrated Services Digital Network
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

9. Which OSI model layer is concerned with MAC addresses?
Point-to-Point Protocol over ATM
IEA RS232 - V.35. Cat 5 - RJ45
Layer 2 - The Data Link layer.
Open Source Interconnect

10. What is the 'LLC Layer' responsible for?
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
Physical Layer
Seven
Point-to-Point Protocol over ATM

11. What are the first 4 layers of the OSI model called?
Data Flow layers.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Data Link layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

12. What does the acronym 'HDLC' stand for?
MAC SubLayer - LLC SubLayer
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
Seven
High-Level Data Link Control

13. What is the OSI model and why is it important in understanding networking?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Presentation layer.
High Level Data Link Control
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

14. What does the acronym 'LLC' stand for?
Hardware address - Ethernet address - BIA - Burned in Address
Logicial Link Control
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

15. What is layer 4 of the OSI model?
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
Transport layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Data Flow layers.

16. What does the acronym 'MAC' stand for?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Media Access Control
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Application layer.

17. Where does troublingshooting alway start?
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
Wide Area Network
International Standards Organization
Physical Layer

18. What does the acronym 'ISO' stand for?
Data Flow layers.
International Standards Organization
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
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

19. What does the acronym 'ISDN' stand for?
Presentation layer.
ISDN - Integrated Services Digital Network
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
Wide Area Network

20. OSI layers are...
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.
Theoretical
Cables - Pins - Electrical Signals
Physical - Data Link. Network - Transport

21. What protocols correspond to the Presentation and Session layers?
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'.
MAC SubLayer - LLC SubLayer
48 bit address used to identify networking cards and appliances

22. What is the difference between the TCP and UDP protocols?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
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'.
Hardware address - Ethernet address - BIA - Burned in Address

23. What is the MAC address?
MAC SubLayer - LLC SubLayer
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
48 bit address used to identify networking cards and appliances

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

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

26. What is the 'MAC Layer' responsible for?
MAC SubLayer - LLC SubLayer
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.
ISDN - Integrated Services Digital Network

27. What is layer 1 of the OSI model?
The hardware that implements the MAC.
Presentation layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Physical layer.

28. What is HDLC?
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
Theoretical
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
Provide a model to discribe how data moves from source device to destination device.

29. What are considered the Data Flow layers?
Presentation layer.
Theoretical
Physical - Data Link. Network - Transport
When require to communicate between different vendors across the same serial link.

30. When would the PPP be used?
Cables - Pins - Electrical Signals
ISDN - Integrated Services Digital Network
Media Access Control
When require to communicate between different vendors across the same serial link.

31. What does the acronym 'ATM' stand for?
Physical - Data Link. Network - Transport
Asynchronous Transfer Mode
Provide a model to discribe how data moves from source device to destination device.
Application layer.

32. What does the acronym 'LAN' stand for?
Local Area Network
Media Access Control
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
International Standards Organization

33. How bits are in a MAC address?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Physical layer.
Media Access Control
48 Bits

34. What is layer 2 of the OSI model?
Data Link layer.
48 bit address used to identify networking cards and appliances
Asynchronous Transfer Mode
Physical Layer

35. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
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
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Theoretical
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

36. What is layer 5 of the OSI model?
Session layer.
Point-to-Point Protocol over ATM
Asynchronous Transfer Mode
Logicial Link Control

37. Frame Relay
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
48 Bits
Logicial Link Control
When require to communicate between different vendors across the same serial link.

38. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Seven
High Level Data Link Control
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Provide a model to discribe how data moves from source device to destination device.

39. What does the acronym default 'HDLC' protocol stand for?
High Level Data Link Control
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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

40. What is the purpose of the OSI Model?
Data Flow layers.
Hardware address - Ethernet address - BIA - Burned in Address
Physical layer.
Provide a model to discribe how data moves from source device to destination device.

41. What is layer 6 of the OSI model?
Presentation layer.
Point-to-Point Protocol over ATM
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.
Application layer.

42. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
Data Flow layers.
48 Bits
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

43. What is layer 3 of the OSI model?
Provide a model to discribe how data moves from source device to destination device.
Local Area Network
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Network layer.

44. What is the EIA/TIA 232 protocol concerned with?
Layer 1 Protocol having to do with serial communication
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.
Layer 2 - The Data Link layer.
Network layer.

45. What does the acronym 'WAN' stand for?
Wide Area Network
The hardware that implements the MAC.
Media Access Control
Layer 1 Protocol having to do with serial communication

46. What are other names for MAC address?
MAC SubLayer - LLC SubLayer
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
48 Bits
Hardware address - Ethernet address - BIA - Burned in Address

47. What is the 'medium access controller'?
Layer 1 Protocol having to do with serial communication
The hardware that implements the MAC.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Hardware address - Ethernet address - BIA - Burned in Address

48. What does the acronym 'PPP' stand for?
Physical 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
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

49. What is layer 7 of the OSI model?
Application layer.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Media Access Control

50. What are some Physical Layer Protocols and Standards?
Logicial Link Control
MAC SubLayer - LLC SubLayer
Open Source Interconnect
IEA RS232 - V.35. Cat 5 - RJ45