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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. OSI layers are...
Physical layer.
Network layer.
Transport layer.
Theoretical

2. What does the acronym 'OSI' stand for?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Logicial Link Control
Open Source Interconnect
High-Level Data Link Control

3. What is the purpose of the OSI Model?
Layer 1 Protocol having to do with serial communication
Asynchronous Transfer Mode
Provide a model to discribe how data moves from source device to destination device.
Point to Point

4. What does the acronym 'ATM' stand for?
Asynchronous Transfer Mode
ISDN - Integrated Services Digital Network
Wide Area Network
Physical - Data Link. Network - Transport

5. Which OSI model layer is concerned with MAC addresses?
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
Layer 2 - The Data Link layer.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

6. What does the acronym 'HDLC' stand for?
High-Level Data Link Control
Hardware address - Ethernet address - BIA - Burned in Address
High Level Data Link Control
Open Source Interconnect

7. What does the acronym 'WAN' stand for?
Presentation layer.
Point-to-Point Protocol over ATM
Wide Area Network
Media Access Control

8. What does the acronym 'PPPoA' stand for?
ISDN - Integrated Services Digital Network
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
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

9. What does the acronym 'ISDN' stand for?
Application layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Cables - Pins - Electrical Signals
ISDN - Integrated Services Digital Network

10. What are the advantages of the OSI model?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
High-Level Data Link Control
Layer 2 - The Data Link layer.

11. 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
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
Theoretical

12. What is layer 4 of the OSI model?
Data Flow layers.
Transport 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
Seven

13. What is the MAC 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.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
International Standards Organization
48 bit address used to identify networking cards and appliances

14. What does the acronym 'MAC' stand for?
Media Access Control
When require to communicate between different vendors across the same serial link.
Wide Area Network
Theoretical

15. What does the acronym 'ISO' stand for?
When require to communicate between different vendors across the same serial link.
High Level Data Link Control
International Standards Organization
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.

16. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
High Level Data Link Control
Layer 1 Protocol having to do with serial communication
Seven
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

17. What is layer 2 of the OSI model?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
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.
Data Link layer.
Media Access Control

18. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
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
International Standards Organization
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

19. What is the Physical Layer responsible for?

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20. What is the difference between the TCP and UDP protocols?
Provide a model to discribe how data moves from source device to destination device.
Physical layer.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

21. What is layer 3 of the OSI model?
Data Link layer.
Theoretical
Network layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

22. How bits are in a MAC address?
Physical Layer
48 Bits
The hardware that implements the MAC.
High Level Data Link Control

23. What protocols correspond to the Presentation and Session layers?
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
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)
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

24. When would the PPP be used?
When require to communicate between different vendors across the same serial link.
ISDN - Integrated Services Digital Network
International Standards Organization
Cables - Pins - Electrical Signals

25. What are some Physical Layer Protocols and Standards?
Point to Point
ISDN - Integrated Services Digital Network
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
IEA RS232 - V.35. Cat 5 - RJ45

26. What is layer 7 of the OSI model?
Point to Point
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Open Source Interconnect
Application layer.

27. What does the acronym 'LLC' stand for?
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
Logicial Link Control
When require to communicate between different vendors across the same serial link.

28. Where does troublingshooting alway start?
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.
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

29. What is HDLC?
ISDN - Integrated Services Digital Network
Theoretical
The hardware that implements the MAC.
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

30. What are the first 4 layers of the OSI model called?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Data Flow layers.
Layer 1 Protocol having to do with serial communication
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

31. What does the acronym default 'HDLC' protocol stand for?
High Level Data Link Control
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

32. How many Layers in the OSI Model?
MAC SubLayer - LLC SubLayer
Seven
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

33. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
International Standards Organization
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.
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)

34. What is layer 5 of the OSI model?
Physical Layer
Network layer.
Session layer.
Wide Area Network

35. What is ATM?
Application layer.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
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
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.

36. In an OSI context What is considered 'media'?
Cables - Pins - Electrical Signals
Asynchronous Transfer Mode
Hardware address - Ethernet address - BIA - Burned in Address
Session layer.

37. What are other names for MAC address?
Hardware address - Ethernet address - BIA - Burned in Address
Physical Layer
Network layer.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

38. What is the 'medium access controller'?
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
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
The hardware that implements the MAC.

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

40. What are considered the Data Flow layers?
Theoretical
International Standards Organization
Layer 1 Protocol having to do with serial communication
Physical - Data Link. Network - Transport

41. 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
High-Level Data Link Control
IEA RS232 - V.35. Cat 5 - RJ45
Data Flow layers.

42. What does the acronym 'PPP' stand for?
Open Source Interconnect
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Physical Layer
Point to Point

43. What is layer 1 of the OSI model?
48 bit address used to identify networking cards and appliances
Physical layer.
Local Area Network
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

44. Frame Relay
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Local Area Network
Wide Area Network

45. What is the EIA/TIA 232 protocol concerned with?
Layer 1 Protocol having to do with serial communication
Open Source Interconnect
Physical - Data Link. Network - Transport
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

46. How does the third OSI model layer relate to administering routers?
Physical Layer
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Logicial Link Control

47. What does the acronym 'LAN' stand for?
ISDN - Integrated Services Digital Network
48 bit address used to identify networking cards and appliances
Local Area Network
Physical Layer

48. What is layer 6 of the OSI model?
Cables - Pins - Electrical Signals
Session layer.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Presentation layer.

49. What is the 'LLC Layer' responsible for?
The hardware that implements the MAC.
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
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

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

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