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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 difference between the TCP and UDP protocols?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
IEA RS232 - V.35. Cat 5 - RJ45
International Standards Organization
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

2. How does the third OSI model layer relate to administering routers?
ISDN - Integrated Services Digital Network
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
MAC SubLayer - LLC SubLayer

3. What does the acronym 'MAC' stand for?
Application layer.
Media Access Control
Open Source Interconnect
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

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

5. What does the acronym 'LAN' stand for?
IEA RS232 - V.35. Cat 5 - RJ45
Point-to-Point Protocol over ATM
Local Area Network
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

6. What is layer 1 of the OSI model?
Data Flow layers.
Application layer.
Physical layer.
Presentation layer.

7. OSI layers are...
MAC SubLayer - LLC SubLayer
Session layer.
International Standards Organization
Theoretical

8. What does the acronym 'ISDN' stand for?
ISDN - Integrated Services Digital Network
Local Area 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
Layer 1 Protocol having to do with serial communication

9. How many Layers in the OSI Model?
Seven
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Hardware address - Ethernet address - BIA - Burned in Address
International Standards Organization

10. What are considered the Data Flow layers?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Physical - Data Link. Network - Transport
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Layer 2 - The Data Link layer.

11. What does the acronym 'ATM' stand for?
Asynchronous Transfer Mode
Physical - Data Link. Network - Transport
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

12. What does the acronym 'ISO' stand for?
Open Source Interconnect
International Standards Organization
Physical layer.
Physical Layer

13. What is the MAC address?
48 bit address used to identify networking cards and appliances
Media Access Control
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Theoretical

14. In an OSI context What is considered 'media'?
Local Area Network
Cables - Pins - Electrical Signals
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Seven

15. What is layer 6 of the OSI model?
Presentation layer.
High Level Data Link Control
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
International Standards Organization

16. What is layer 4 of the OSI model?
Media Access Control
Transport layer.
Cables - Pins - Electrical Signals
Layer 1 Protocol having to do with serial communication

17. What are the first 4 layers of the OSI model called?
Data Flow layers.
Physical - Data Link. Network - Transport
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
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

18. What is layer 3 of the OSI model?
Network layer.
Wide Area Network
International Standards Organization
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

19. What does the acronym default 'HDLC' protocol stand for?
High Level Data Link Control
Data Flow layers.
Transport layer.
Layer 2 - The Data Link layer.

20. What is layer 5 of the OSI model?
High Level Data Link Control
Open Source Interconnect
Session layer.
48 Bits

21. What is ATM?
High Level Data Link Control
48 bit address used to identify networking cards and appliances
IEA RS232 - V.35. Cat 5 - RJ45
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.

22. What are some Physical Layer Protocols and Standards?
IEA RS232 - V.35. Cat 5 - RJ45
Theoretical
Logicial Link Control
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

23. What are are the 'Sub Layers' of the 'Data Link' Layer?
International Standards Organization
Presentation layer.
MAC SubLayer - LLC SubLayer
The hardware that implements the MAC.

24. When would the PPP be used?
When require to communicate between different vendors across the same serial link.
48 Bits
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)

25. What is the 'MAC Layer' responsible for?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
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
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

26. What protocols correspond to the Presentation and Session layers?
MAC SubLayer - LLC SubLayer
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
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

27. Which OSI model layer is concerned with MAC addresses?
48 bit address used to identify networking cards and appliances
Seven
Layer 2 - The Data Link layer.
Media Access Control

28. What is the EIA/TIA 232 protocol concerned with?
Point-to-Point Protocol over ATM
Cables - Pins - Electrical Signals
Layer 1 Protocol having to do with serial communication
When require to communicate between different vendors across the same serial link.

29. What is the Physical Layer responsible for?

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

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31. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
International Standards Organization
Data Flow layers.
IEA RS232 - V.35. Cat 5 - RJ45
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

32. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
ISDN - Integrated Services Digital Network
48 bit address used to identify networking cards and appliances
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

33. What is HDLC?
Transport layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
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
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

34. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Network layer.
Session layer.

35. What does the acronym 'HDLC' stand for?
High-Level Data Link Control
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Theoretical
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

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

37. Where does troublingshooting alway start?
Physical Layer
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
Theoretical

38. What does the acronym 'OSI' stand for?
Presentation layer.
Cables - Pins - Electrical Signals
Transport layer.
Open Source Interconnect

39. What does the acronym 'PPPoA' stand for?
Point-to-Point Protocol over ATM
Hardware address - Ethernet address - BIA - Burned in Address
The hardware that implements the MAC.
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

40. What does the acronym 'WAN' stand for?
Hardware address - Ethernet address - BIA - Burned in Address
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
Point-to-Point Protocol over ATM
Wide Area Network

41. What does the acronym 'LLC' stand for?
Data Link layer.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Logicial Link Control
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

42. What are other names for MAC address?
Layer 2 - The Data Link layer.
Hardware address - Ethernet address - BIA - Burned in Address
Physical Layer
Open Source Interconnect

43. What is the purpose 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.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
ISDN - Integrated Services Digital Network
Provide a model to discribe how data moves from source device to destination device.

44. Frame Relay
Seven
Theoretical
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

45. What are the advantages of the OSI model?
Physical Layer
Local Area Network
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
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

46. What is the OSI model and why is it important in understanding networking?
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
Transport layer.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

47. What is layer 2 of the OSI model?
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
Data Link layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

48. 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
Cables - Pins - Electrical Signals
High Level Data Link Control
The hardware that implements the MAC.

49. What is the 'medium access controller'?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
IEA RS232 - V.35. Cat 5 - RJ45
The hardware that implements the MAC.
Network layer.

50. What does the acronym 'PPP' stand for?
Data Flow layers.
Point to Point
Media Access Control
ISDN - Integrated Services Digital Network