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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 'LLC' stand for?
Data Flow layers.
Wide Area Network
Layer 2 - The Data Link layer.
Logicial Link Control

2. What are some Physical Layer Protocols and Standards?
48 bit address used to identify networking cards and appliances
IEA RS232 - V.35. Cat 5 - RJ45
Asynchronous Transfer Mode
Point-to-Point Protocol over ATM

3. Frame Relay
Physical 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
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Logicial Link Control

4. What are considered the Data Flow layers?
Network layer.
48 bit address used to identify networking cards and appliances
The hardware that implements the MAC.
Physical - Data Link. Network - Transport

5. What does the acronym 'ISO' stand for?
International Standards Organization
High-Level Data Link Control
Hardware address - Ethernet address - BIA - Burned in Address
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

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

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7. What are the first 4 layers of the OSI model called?
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
Data Flow layers.
Layer 2 - The Data Link layer.
Wide Area Network

8. What does the acronym 'ISDN' stand for?
The hardware that implements the MAC.
Physical - Data Link. Network - Transport
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

9. OSI layers are...
Theoretical
Data Flow layers.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
MAC SubLayer - LLC SubLayer

10. What are other names for MAC address?
Hardware address - Ethernet address - BIA - Burned in Address
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
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

11. How bits are in a MAC 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
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.
48 Bits
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.

12. What does the acronym 'LAN' stand for?
Wide Area Network
Cables - Pins - Electrical Signals
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Local Area Network

13. What is layer 5 of the OSI model?
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
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.
48 bit address used to identify networking cards and appliances
Session layer.

14. What is the OSI model and why is it important in understanding networking?
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
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 bit address used to identify networking cards and appliances
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 are some examples of 'LAN' side Datalink Layer Protocols and Standards?
Asynchronous Transfer Mode
Data Flow layers.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

16. What is layer 2 of the OSI model?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
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
Data Link layer.
When require to communicate between different vendors across the same serial link.

17. 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
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
Provide a model to discribe how data moves from source device to destination device.

18. 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
Wide Area Network
Transport layer.

19. What does the acronym 'OSI' stand for?
MAC SubLayer - LLC SubLayer
Open Source Interconnect
Point to Point
Cables - Pins - Electrical Signals

20. Which OSI model layer is concerned with MAC addresses?
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
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.

21. How does the third OSI model layer relate to administering routers?
Cables - Pins - Electrical Signals
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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

22. What are the advantages of the OSI model?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
MAC SubLayer - LLC SubLayer
The hardware that implements the MAC.

23. In an OSI context What is considered 'media'?
Data Link layer.
48 bit address used to identify networking cards and appliances
Cables - Pins - Electrical Signals
Theoretical

24. What does the acronym 'WAN' stand for?
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Session 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
Wide Area Network

25. What does the acronym 'ATM' stand for?
48 Bits
Cables - Pins - Electrical Signals
Application layer.
Asynchronous Transfer Mode

26. Where does troublingshooting alway start?
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
Physical - Data Link. Network - Transport
Physical Layer
High Level Data Link Control

27. When would the PPP be used?
When require to communicate between different vendors across the same serial link.
Logicial Link Control
Data Link layer.
IEA RS232 - V.35. Cat 5 - RJ45

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

29. What is HDLC?
Asynchronous Transfer Mode
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
Presentation layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

30. What is the 'LLC Layer' responsible for?
Wide Area Network
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.
Logicial Link Control

31. What is the MAC address?
IEA RS232 - V.35. Cat 5 - RJ45
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
48 bit address used to identify networking cards and appliances
Provide a model to discribe how data moves from source device to destination device.

32. What does the acronym 'PPP' stand for?
Point to Point
Data Flow layers.
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
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

33. What is the EIA/TIA 232 protocol concerned with?
Data Flow layers.
International Standards Organization
Layer 1 Protocol having to do with serial communication
48 Bits

34. What is layer 3 of the OSI model?
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.
Layer 1 Protocol having to do with serial communication
48 Bits
Network layer.

35. What does the acronym 'MAC' stand for?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Wide Area Network
Media Access Control
Point to Point

36. What is layer 1 of the OSI model?
Transport layer.
International Standards Organization
MAC SubLayer - LLC SubLayer
Physical layer.

37. What does the acronym 'PPPoA' stand for?
Point-to-Point Protocol over ATM
Asynchronous Transfer Mode
Layer 2 - The Data Link layer.
Transport layer.

38. What protocols correspond to the Presentation and Session layers?
Data Link layer.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
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
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.

39. What is the purpose of the OSI Model?
High Level Data Link Control
Provide a model to discribe how data moves from source device to destination device.
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'.

40. What are are the 'Sub Layers' of the 'Data Link' Layer?
Application layer.
Point-to-Point Protocol over ATM
Network layer.
MAC SubLayer - LLC SubLayer

41. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
When require to communicate between different vendors across the same serial link.
Data Flow layers.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Asynchronous Transfer Mode

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

43. What does the acronym default 'HDLC' protocol stand for?
Theoretical
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
High Level Data Link Control
IEA RS232 - V.35. Cat 5 - RJ45

44. What does the acronym 'HDLC' stand for?
MAC SubLayer - LLC SubLayer
High-Level Data Link Control
Cables - Pins - Electrical Signals
High Level Data Link Control

45. What is layer 6 of the OSI model?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Presentation layer.
Point-to-Point Protocol over ATM
Logicial Link Control

46. What is the Physical Layer responsible for?

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47. 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.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
ISDN - Integrated Services Digital Network
Asynchronous Transfer Mode

48. What is layer 7 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.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Application layer.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

49. What is layer 4 of the OSI model?
ISDN - Integrated Services Digital Network
Transport layer.
Media Access Control
48 bit address used to identify networking cards and appliances

50. How many Layers in the OSI Model?
Seven
Point to Point
Provide a model to discribe how data moves from source device to destination device.
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