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Cisco Certification OSI Model

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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 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
High-Level Data Link Control
Physical - Data Link. Network - Transport
Physical Layer

2. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
Transport layer.
Wide Area Network
Session layer.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

3. What does the acronym 'ISO' stand for?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Asynchronous Transfer Mode
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
International Standards Organization

4. What is layer 4 of the OSI model?
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.
The hardware that implements the MAC.
Transport layer.
Asynchronous Transfer Mode

5. What does the acronym 'HDLC' 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
High-Level Data Link Control
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
Logicial Link Control

6. What does the acronym 'LLC' stand for?
Provide a model to discribe how data moves from source device to destination device.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Logicial Link Control
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

7. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Seven
48 Bits
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

8. What are other names for MAC address?
Seven
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
Hardware address - Ethernet address - BIA - Burned in Address
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.

9. OSI layers are...
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
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

10. What are the first 4 layers of the OSI model called?
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
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Data Flow layers.

11. How bits are in a MAC address?
Seven
48 Bits
Physical Layer
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

12. 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
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
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.
Data Link layer.

13. How many Layers in the OSI Model?
Seven
Theoretical
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

14. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
IEA RS232 - V.35. Cat 5 - RJ45
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Hardware address - Ethernet address - BIA - Burned in Address
Local Area Network

15. What are are the 'Sub Layers' of the 'Data Link' Layer?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
High Level Data Link Control
Physical Layer
MAC SubLayer - LLC SubLayer

16. What are some Physical Layer Protocols and Standards?
IEA RS232 - V.35. Cat 5 - RJ45
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Asynchronous Transfer Mode
Provide a model to discribe how data moves from source device to destination device.

17. What does the acronym 'PPPoA' stand for?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Physical 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
Point-to-Point Protocol over ATM

18. What does the acronym 'PPP' stand for?
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
International Standards Organization
48 bit address used to identify networking cards and appliances
Point to Point

19. What does the acronym default 'HDLC' protocol stand for?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
High Level Data Link Control
The hardware that implements the MAC.
When require to communicate between different vendors across the same serial link.

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

21. Which OSI model layer is concerned with MAC addresses?
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
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Layer 2 - The Data Link layer.
Data Link layer.

22. What are considered the Data Flow 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
Layer 1 Protocol having to do with serial communication
Physical - Data Link. Network - Transport
Data Flow layers.

23. Where does troublingshooting alway start?
MAC SubLayer - LLC SubLayer
Physical Layer
Session layer.
Local Area Network

24. What are the advantages of the OSI model?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
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.
Hardware address - Ethernet address - BIA - Burned in Address
IEA RS232 - V.35. Cat 5 - RJ45

25. What is ATM?
High-Level Data Link Control
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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.
Provide a model to discribe how data moves from source device to destination device.

26. What is the EIA/TIA 232 protocol concerned with?
Layer 2 - The Data Link layer.
Layer 1 Protocol having to do with serial communication
Hardware address - Ethernet address - BIA - Burned in Address
Point-to-Point Protocol over ATM

27. What is layer 7 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
Application layer.
Physical layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

28. What is layer 6 of the OSI model?
Presentation layer.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Wide Area Network

29. What is the Physical Layer responsible for?

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30. What is layer 3 of the OSI model?
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Data Link layer.
Network layer.

31. What does the acronym 'MAC' stand for?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Media Access 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
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

32. What protocols correspond to the Presentation and Session layers?
Layer 1 Protocol having to do with serial communication
48 bit address used to identify networking cards and appliances
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
Physical - Data Link. Network - Transport

33. 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
Data Link layer.
48 bit address used to identify networking cards and appliances
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

34. In an OSI context What is considered 'media'?
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
MAC SubLayer - LLC SubLayer
Cables - Pins - Electrical Signals
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.

35. What is the purpose of the OSI Model?
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.
Physical layer.
Presentation layer.

36. When would the PPP be used?
Layer 1 Protocol having to do with serial communication
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
When require to communicate between different vendors across the same serial link.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

37. Frame Relay
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Data Link layer.
Wide Area Network
Physical - Data Link. Network - Transport

38. What is the 'medium access controller'?
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
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
The hardware that implements the MAC.

39. What is the 'MAC Layer' responsible for?
Data Link layer.
Presentation layer.
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
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

40. What is layer 5 of the OSI model?
Point-to-Point Protocol over ATM
Media Access Control
Session layer.
Layer 2 - The Data Link layer.

41. How does the third OSI model layer relate to administering routers?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Point-to-Point Protocol over ATM
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
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

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

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43. What does the acronym 'WAN' stand for?
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.
Wide Area Network
Point to Point
Local Area Network

44. What is layer 1 of the OSI model?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Provide a model to discribe how data moves from source device to destination device.
Physical layer.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

45. What is the difference between the TCP and UDP protocols?
Cables - Pins - Electrical Signals
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
48 bit address used to identify networking cards and appliances

46. What is the OSI model and why is it important in understanding networking?
Presentation 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
Theoretical
High Level Data Link Control

47. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
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)
The hardware that implements the MAC.
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

48. What does the acronym 'LAN' stand for?
The hardware that implements the MAC.
Wide Area Network
Theoretical
Local Area Network

49. What does the acronym 'ATM' stand for?
Physical Layer
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Presentation layer.
Asynchronous Transfer Mode

50. What does the acronym 'OSI' stand for?
Physical - Data Link. Network - Transport
IEA RS232 - V.35. Cat 5 - RJ45
Network layer.
Open Source Interconnect