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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 the OSI model and why is it important in understanding networking?
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.
Logicial 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

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

3. What does the acronym 'WAN' stand for?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Data Flow layers.
Wide Area Network
ISDN - Integrated Services Digital Network

4. What is layer 3 of the OSI model?
Provide a model to discribe how data moves from source device to destination device.
48 bit address used to identify networking cards and appliances
Network 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

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

6. What are some Physical Layer Protocols and Standards?
Session layer.
IEA RS232 - V.35. Cat 5 - RJ45
Local Area Network
Cables - Pins - Electrical Signals

7. Which OSI model layer is concerned with MAC addresses?
Data Link layer.
Layer 2 - The Data Link layer.
MAC SubLayer - LLC SubLayer
Wide Area Network

8. What is the EIA/TIA 232 protocol concerned with?
High-Level Data Link Control
Layer 1 Protocol having to do with serial communication
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Physical Layer

9. What is layer 1 of the OSI model?
High Level Data Link Control
Physical layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Data Link layer.

10. What does the acronym 'ISO' stand for?
Point-to-Point Protocol over ATM
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Logicial Link Control
International Standards Organization

11. What are the first 4 layers of the OSI model called?
Data Flow layers.
The hardware that implements the MAC.
Theoretical
Physical Layer

12. What is the purpose of the OSI Model?
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
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

13. What does the acronym 'PPP' stand for?
Theoretical
Point to Point
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
Cables - Pins - Electrical Signals

14. What is the 'medium access controller'?
The hardware that implements the MAC.
Physical Layer
Logicial Link 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.

15. What does the acronym 'ATM' stand for?
Asynchronous Transfer Mode
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
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

16. How does the third OSI model layer relate to administering routers?
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
Seven
International Standards Organization

17. What are the advantages of the OSI model?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
High Level Data Link Control
When require to communicate between different vendors across the same serial link.
Physical layer.

18. What does the acronym 'LAN' stand for?
Logicial Link Control
Local Area Network
Media Access 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.

19. What are other names for MAC address?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Hardware address - Ethernet address - BIA - Burned in Address
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

20. What does the acronym 'ISDN' stand for?
ISDN - Integrated Services Digital Network
High-Level Data Link Control
Layer 1 Protocol having to do with serial communication
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

21. What are are the 'Sub Layers' of the 'Data Link' Layer?
International Standards Organization
MAC SubLayer - LLC SubLayer
Asynchronous Transfer Mode
Layer 2 - The Data Link layer.

22. What does the acronym 'HDLC' stand for?
Layer 2 - The Data Link layer.
High-Level Data Link Control
Seven
Wide Area Network

23. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
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
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Physical layer.
Layer 2 - The Data Link layer.

24. What is the MAC address?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Physical Layer
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

25. What does the acronym default 'HDLC' protocol stand 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
48 Bits
High Level Data Link Control
Layer 1 Protocol having to do with serial communication

26. What does the acronym 'PPPoA' stand for?
Local Area Network
Point-to-Point Protocol over ATM
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Seven

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

28. How bits are in a MAC address?
Network layer.
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
Point to Point

29. OSI layers are...
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
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.
Asynchronous Transfer Mode

30. What does the acronym 'LLC' stand for?
Data Flow layers.
Provide a model to discribe how data moves from source device to destination device.
Logicial Link Control
Layer 2 - The Data Link layer.

31. How many Layers in 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.
Seven
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
Point-to-Point Protocol over ATM

32. Frame Relay
48 Bits
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 technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Media Access Control

33. What is layer 4 of the OSI model?
Physical - Data Link. Network - Transport
Media Access Control
Open Source Interconnect
Transport layer.

34. What is the 'LLC Layer' responsible for?
Data Flow layers.
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
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

35. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
MAC SubLayer - LLC SubLayer
Provide a model to discribe how data moves from source device to destination device.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

36. When would the PPP be used?
48 Bits
Data Flow layers.
When require to communicate between different vendors across the same serial link.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

37. In an OSI context What is considered 'media'?
Cables - Pins - Electrical Signals
Point-to-Point Protocol over ATM
The hardware that implements the MAC.
IEA RS232 - V.35. Cat 5 - RJ45

38. What are considered the Data Flow layers?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
ISDN - Integrated Services Digital Network
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
Physical - Data Link. Network - Transport

39. What is HDLC?
Data Flow layers.
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
Presentation layer.

40. What is the difference between the TCP and UDP protocols?
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
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Physical Layer
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

41. What is layer 7 of the OSI model?
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.
Application 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

42. What is the Physical Layer responsible for?

43. What is layer 5 of the OSI model?
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
Session layer.
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.

44. What does the acronym 'MAC' stand for?
Open Source Interconnect
Media Access Control
Presentation layer.
When require to communicate between different vendors across the same serial link.

45. What protocols correspond to the Presentation and Session layers?
The hardware that implements the MAC.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Layer 2 - The 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

46. What is the 'MAC Layer' responsible for?
Provide a model to discribe how data moves from source device to destination device.
Asynchronous Transfer Mode
Data Link 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

47. What is layer 2 of the OSI model?
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
Theoretical
Data Link layer.
Seven

48. What does the acronym 'OSI' 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
Provide a model to discribe how data moves from source device to destination device.
Open Source Interconnect
The hardware that implements the MAC.

49. What is ATM?
When require to communicate between different vendors across the same serial link.
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.
Transport layer.
48 Bits

50. What is layer 6 of the OSI model?
Presentation layer.
High Level Data Link Control
International Standards Organization
IEA RS232 - V.35. Cat 5 - RJ45