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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 does the acronym 'ISO' stand for?
Layer 2 - The Data Link layer.
Logicial Link Control
Media Access Control
International Standards Organization

2. What is layer 6 of the OSI model?
Presentation 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
48 bit address used to identify networking cards and appliances
Point to Point

3. What is layer 5 of the OSI model?
Session 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
High Level Data Link Control
ISDN - Integrated Services Digital Network

4. What does the acronym 'ATM' stand for?
Point to Point
Asynchronous Transfer Mode
Data Flow layers.
Media Access Control

5. What is the OSI model and why is it important in understanding networking?
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
When require to communicate between different vendors across the same serial link.
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

6. What is the MAC address?
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.
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
48 bit address used to identify networking cards and appliances

7. What is layer 7 of the OSI model?
Application layer.
The hardware that implements the MAC.
Layer 1 Protocol having to do with serial communication
High-Level Data Link Control

8. What are the advantages of the OSI model?
Data Link layer.
Transport layer.
High Level Data Link Control
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

9. 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
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Point to Point
Session layer.

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

11. What is the Physical Layer responsible for?

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12. What does the acronym 'OSI' stand for?
IEA RS232 - V.35. Cat 5 - RJ45
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
High Level Data Link Control
Open Source Interconnect

13. What does the acronym 'LAN' stand for?
Data Link layer.
Layer 2 - The Data Link layer.
Local Area Network
Network layer.

14. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Seven
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Provide a model to discribe how data moves from source device to destination device.

15. What is the difference between the TCP and UDP protocols?
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
Media Access Control
Application layer.

16. What does the acronym 'MAC' stand for?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Cables - Pins - Electrical Signals
Media Access Control
International Standards Organization

17. What is the 'MAC Layer' responsible for?
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
MAC SubLayer - LLC SubLayer
Physical - Data Link. Network - Transport
High-Level Data Link Control

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

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19. 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.
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
Point to Point

20. What are other names for MAC address?
Theoretical
Layer 2 - The Data Link layer.
Hardware address - Ethernet address - BIA - Burned in Address
Network layer.

21. What is layer 2 of the OSI model?
Cables - Pins - Electrical Signals
Layer 1 Protocol having to do with serial communication
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Data Link layer.

22. What is HDLC?
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
Cables - Pins - Electrical Signals
Session 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

23. OSI layers are...
Seven
Theoretical
Local Area Network
Cables - Pins - Electrical Signals

24. What does the acronym 'LLC' stand for?
48 bit address used to identify networking cards and appliances
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
Layer 2 - The Data Link layer.

25. 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.
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
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
IEA RS232 - V.35. Cat 5 - RJ45

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

27. What does the acronym 'HDLC' stand for?
International Standards Organization
Cables - Pins - Electrical Signals
High-Level Data Link Control
Physical - Data Link. Network - Transport

28. What does the acronym 'WAN' stand for?
Provide a model to discribe how data moves from source device to destination device.
Transport layer.
Wide Area Network
The hardware that implements the MAC.

29. What are the first 4 layers of the OSI model called?
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.
Data Flow layers.
Data Link layer.

30. What is the 'medium access controller'?
Hardware address - Ethernet address - BIA - Burned in Address
International Standards Organization
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

31. What is layer 3 of the OSI model?
The hardware that implements the MAC.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
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

32. What is the 'LLC Layer' responsible for?
Open Source Interconnect
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.
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

33. What does the acronym 'ISDN' stand for?
Data Link layer.
ISDN - Integrated Services Digital Network
When require to communicate between different vendors across the same serial link.
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

34. Where does troublingshooting alway start?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Physical Layer
Network layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

35. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
Transport layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
IEA RS232 - V.35. Cat 5 - RJ45
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

36. What is the EIA/TIA 232 protocol concerned with?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
The hardware that implements the MAC.
Wide Area Network
Layer 1 Protocol having to do with serial communication

37. When would the PPP be used?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Seven
When require to communicate between different vendors across the same serial link.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

38. What are are the 'Sub Layers' of the 'Data Link' Layer?
MAC SubLayer - LLC SubLayer
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.
Application layer.

39. Frame Relay
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Asynchronous Transfer Mode
Provide a model to discribe how data moves from source device to destination device.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

40. What are some Physical Layer Protocols and Standards?
High Level Data Link Control
IEA RS232 - V.35. Cat 5 - RJ45
Open Source Interconnect
Cables - Pins - Electrical Signals

41. What does the acronym default 'HDLC' protocol stand for?
IEA RS232 - V.35. Cat 5 - RJ45
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
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

42. How bits are in a MAC address?
Point to Point
Asynchronous Transfer Mode
48 Bits
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 is layer 4 of the OSI model?
Data Flow layers.
48 Bits
IEA RS232 - V.35. Cat 5 - RJ45
Transport layer.

44. What is layer 1 of the OSI model?
Data Flow layers.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
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

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

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

47. How many Layers in the OSI Model?
Layer 2 - The Data Link layer.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Seven
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

48. In an OSI context What is considered 'media'?
Cables - Pins - Electrical Signals
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.
IEA RS232 - V.35. Cat 5 - RJ45
Physical - Data Link. Network - Transport

49. What protocols correspond to the Presentation and Session layers?
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
Transport layer.
Layer 2 - The Data Link layer.

50. What does the acronym 'PPPoA' stand 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.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Hardware address - Ethernet address - BIA - Burned in Address
Point-to-Point Protocol over ATM