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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...
International Standards Organization
Theoretical
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

2. What does the acronym 'LLC' stand for?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Point to Point
Logicial Link Control

3. What is the 'LLC Layer' responsible for?
Layer 1 Protocol having to do with serial communication
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
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
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

4. What does the acronym 'PPPoA' stand for?
Point-to-Point Protocol over ATM
Session layer.
48 Bits
Layer 1 Protocol having to do with serial communication

5. What protocols correspond to the Presentation and Session layers?
Logicial Link Control
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
Layer 1 Protocol having to do with serial communication

6. What is the difference between the TCP and UDP protocols?
Seven
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

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

8. What is layer 3 of the OSI model?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Network layer.
Physical Layer
Physical - Data Link. Network - Transport

9. How many Layers in the OSI Model?
Seven
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Cables - Pins - Electrical Signals
Transport layer.

10. How bits are in a MAC address?
Layer 2 - The Data Link layer.
IEA RS232 - V.35. Cat 5 - RJ45
48 Bits
Session layer.

11. What is the EIA/TIA 232 protocol concerned with?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Session layer.
The hardware that implements the MAC.
Layer 1 Protocol having to do with serial communication

12. What is layer 7 of the OSI model?
High Level Data Link Control
Media Access Control
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Application layer.

13. 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
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
The hardware that implements the MAC.

14. What are considered the Data Flow layers?
Open Source Interconnect
Physical - Data Link. Network - Transport
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
Media Access Control

15. What is layer 1 of the OSI model?
Physical Layer
Physical layer.
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.
International Standards Organization

16. When would the PPP be used?
The hardware that implements the MAC.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
When require to communicate between different vendors across the same serial link.
Logicial Link Control

17. What does the acronym default 'HDLC' protocol stand for?
Theoretical
Layer 2 - The Data Link layer.
Hardware address - Ethernet address - BIA - Burned in Address
High Level Data Link Control

18. What is ATM?
Provide a model to discribe how data moves from source device to destination device.
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.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
IEA RS232 - V.35. Cat 5 - RJ45

19. Frame Relay
48 bit address used to identify networking cards and appliances
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Hardware address - Ethernet address - BIA - Burned in Address
Presentation layer.

20. What does the acronym 'ISO' stand for?
International Standards Organization
Asynchronous Transfer Mode
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'.

21. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
Wide Area Network
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
ISDN - Integrated Services Digital Network

22. What is the 'medium access controller'?
Layer 1 Protocol having to do with serial communication
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 hardware that implements the MAC.
Presentation layer.

23. 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
Presentation 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
Application layer.

24. In an OSI context What is considered 'media'?
Cables - Pins - Electrical Signals
Data Link layer.
High Level Data Link Control
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

25. What does the acronym 'LAN' stand for?
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
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.
Local Area Network

26. What are the advantages of the OSI model?
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
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

27. What are the first 4 layers of the OSI model called?
Logicial Link Control
High Level Data Link Control
Data Flow layers.
Data Link layer.

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

29. What does the acronym 'ISDN' stand for?
Transport layer.
ISDN - Integrated Services Digital Network
Physical - Data Link. Network - Transport
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

30. What does the acronym 'MAC' stand for?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
When require to communicate between different vendors across the same serial link.
Media Access Control
Logicial Link Control

31. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
Network layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Presentation layer.
Asynchronous Transfer Mode

32. What does the acronym 'ATM' stand for?
International Standards Organization
Asynchronous Transfer Mode
Logicial Link Control
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

33. What is layer 4 of the OSI model?
Presentation layer.
Hardware address - Ethernet address - BIA - Burned in Address
Transport 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

34. What does the acronym 'HDLC' stand for?
Application layer.
High-Level Data Link 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.
Seven

35. Where does troublingshooting alway start?
Physical Layer
Hardware address - Ethernet address - BIA - Burned in Address
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Data Flow layers.

36. What is layer 6 of the OSI model?
Presentation layer.
High-Level Data Link Control
Physical Layer
Wide Area Network

37. What is HDLC?
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 third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Physical layer.
Hardware address - Ethernet address - BIA - Burned in Address

38. What is the MAC address?
Layer 2 - The Data Link layer.
Logicial Link Control
Network layer.
48 bit address used to identify networking cards and appliances

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

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40. What is layer 5 of the OSI model?
Session layer.
Asynchronous Transfer Mode
Physical Layer
When require to communicate between different vendors across the same serial link.

41. What is the purpose of the OSI Model?
Provide a model to discribe how data moves from source device to destination device.
Network 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
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

42. What does the acronym 'OSI' stand for?
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
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.
Open Source Interconnect

43. How does the third OSI model layer relate to administering routers?
High-Level Data Link Control
Physical - Data Link. Network - Transport
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Provide a model to discribe how data moves from source device to destination device.

44. What are other names for 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.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Media Access Control
Hardware address - Ethernet address - BIA - Burned in Address

45. What is the Physical Layer responsible for?

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46. What does the acronym 'PPP' stand for?
Physical layer.
Point to Point
Network layer.
Data Flow layers.

47. What are are the 'Sub Layers' of the 'Data Link' Layer?
International Standards Organization
MAC SubLayer - LLC SubLayer
Session layer.
Wide Area Network

48. What does the acronym 'WAN' stand for?
Open Source Interconnect
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
Provide a model to discribe how data moves from source device to destination device.

49. What is the OSI model and why is it important in understanding networking?
IEA RS232 - V.35. Cat 5 - RJ45
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
When require to communicate between different vendors across the same serial link.
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

50. What are some Physical Layer Protocols and Standards?
Local Area Network
48 Bits
IEA RS232 - V.35. Cat 5 - RJ45
Presentation layer.