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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. OSI layers are...
Point-to-Point Protocol over ATM
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
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 is layer 6 of the OSI model?
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
MAC SubLayer - LLC SubLayer
Presentation 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

3. What does the acronym 'ISO' stand for?
Presentation layer.
International Standards Organization
Seven
Wide Area Network

4. 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
Point-to-Point Protocol over ATM
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

5. What are some Physical Layer Protocols and Standards?
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
IEA RS232 - V.35. Cat 5 - RJ45
Physical Layer
International Standards Organization

6. What does the acronym 'WAN' stand for?
MAC SubLayer - LLC SubLayer
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
Wide Area Network

7. When would the PPP be used?
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
MAC SubLayer - LLC SubLayer
IEA RS232 - V.35. Cat 5 - RJ45
When require to communicate between different vendors across the same serial link.

8. What are are the 'Sub Layers' of the 'Data Link' Layer?
48 Bits
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
MAC SubLayer - LLC SubLayer
Data Flow layers.

9. What is the OSI model and why is it important in understanding networking?
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
Transport layer.
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
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.

10. What are other names for MAC address?
Hardware address - Ethernet address - BIA - Burned in Address
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
Logicial Link Control
Session layer.

11. What does the acronym default 'HDLC' protocol stand for?
Application layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Open Source Interconnect
High Level Data Link Control

12. Frame Relay
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Physical layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
The hardware that implements the MAC.

13. What is the EIA/TIA 232 protocol concerned with?
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
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
Layer 1 Protocol having to do with serial communication

14. What is layer 2 of the OSI model?
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
Data Link layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

15. What protocols correspond to the Presentation and Session layers?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
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
Logicial Link Control

16. What does the acronym 'HDLC' stand for?
MAC SubLayer - LLC SubLayer
Application layer.
High-Level Data Link Control
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

17. Where does troublingshooting alway start?
Physical Layer
Layer 2 - The Data Link layer.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Seven

18. What is the 'medium access controller'?
Layer 1 Protocol having to do with serial communication
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
The hardware that implements the MAC.
Asynchronous Transfer Mode

19. How does the third OSI model layer relate to administering routers?
Data Flow layers.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Point to Point
Physical - Data Link. Network - Transport

20. What are the advantages 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
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Physical - Data Link. Network - Transport
48 bit address used to identify networking cards and appliances

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

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22. What are considered the Data Flow layers?
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.
Physical - Data Link. Network - Transport
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Point-to-Point Protocol over ATM

23. 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
The hardware that implements the MAC.
High-Level Data Link Control
Theoretical

24. Which OSI model layer is concerned with MAC addresses?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Layer 2 - The Data Link layer.
Data Flow layers.
Physical - Data Link. Network - Transport

25. What does the acronym 'ISDN' stand for?
Application layer.
Open Source Interconnect
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
ISDN - Integrated Services Digital Network

26. What is the purpose of the OSI Model?
Hardware address - Ethernet address - BIA - Burned in Address
Media Access Control
Asynchronous Transfer Mode
Provide a model to discribe how data moves from source device to destination device.

27. 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.
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
48 Bits

28. What is layer 1 of the OSI model?
Cables - Pins - Electrical Signals
Media Access Control
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.
Physical layer.

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

30. What are the first 4 layers of the OSI model called?
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
Data Flow layers.
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

31. What is the Physical Layer responsible for?

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32. In an OSI context What is considered 'media'?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Cables - Pins - Electrical Signals
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
Transport layer.

33. What is the 'MAC Layer' responsible for?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Open Source Interconnect
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. What does the acronym 'MAC' stand for?
Media Access Control
Layer 2 - The Data Link layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Asynchronous Transfer Mode

35. What does the acronym 'LAN' stand for?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
48 bit address used to identify networking cards and appliances
Local Area Network
Cables - Pins - Electrical Signals

36. What does the acronym 'OSI' stand for?
Presentation layer.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Point to Point
Open Source Interconnect

37. What is the MAC address?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
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
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
48 bit address used to identify networking cards and appliances

38. What is layer 5 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
Seven
Session layer.
Theoretical

39. How many Layers in the OSI Model?
Application layer.
Seven
Hardware address - Ethernet address - BIA - Burned in Address
Transport layer.

40. What is layer 7 of the OSI model?
Asynchronous Transfer Mode
Media Access Control
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Application layer.

41. What does the acronym 'ATM' stand for?
Asynchronous Transfer Mode
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Data Flow layers.
48 bit address used to identify networking cards and appliances

42. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
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.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

43. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Layer 2 - The Data Link layer.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Session layer.

44. What is HDLC?
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 Bits
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
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

45. How bits are in a MAC address?
48 Bits
ISDN - Integrated Services Digital Network
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Local Area Network

46. What does the acronym 'LLC' stand for?
Point-to-Point Protocol over ATM
Physical layer.
Logicial Link Control
Transport layer.

47. What is layer 4 of the OSI model?
Transport layer.
Asynchronous Transfer Mode
Layer 1 Protocol having to do with serial communication
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

48. What is the 'LLC Layer' responsible for?
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
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
Logicial Link Control

49. What does the acronym 'PPPoA' stand for?
Data Flow layers.
Session layer.
Theoretical
Point-to-Point Protocol over ATM

50. What is layer 3 of the OSI model?
Session layer.
International Standards Organization
Network layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM