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Cisco Certification OSI Model

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Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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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?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Session layer.
Point-to-Point Protocol over ATM

2. What does the acronym 'LAN' stand for?
ISDN - Integrated Services Digital Network
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
Transport layer.
Local Area Network

3. What is layer 3 of the OSI model?
Network 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
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.
Presentation layer.

4. Frame Relay
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Media Access Control
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Presentation layer.

5. What is layer 5 of the OSI model?
Cables - Pins - Electrical Signals
ISDN - Integrated Services Digital Network
Data Link layer.
Session layer.

6. What is layer 1 of the OSI model?
Physical layer.
Asynchronous Transfer Mode
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
MAC SubLayer - LLC SubLayer

7. How bits are in a MAC address?
Layer 2 - The Data Link 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.
48 Bits
Data Flow layers.

8. What does the acronym 'MAC' stand for?
Physical - Data Link. Network - Transport
Point-to-Point Protocol over ATM
Media Access Control
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

9. What does the acronym 'LLC' stand for?
Point to Point
Logicial Link Control
Presentation layer.
Physical layer.

10. What does the acronym 'OSI' stand 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
Cables - Pins - Electrical Signals
The hardware that implements the MAC.
Open Source Interconnect

11. 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
MAC SubLayer - LLC SubLayer
Point-to-Point Protocol over ATM
Logicial Link Control

12. What is layer 4 of the OSI model?
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
Transport layer.
The hardware that implements the MAC.
Asynchronous Transfer Mode

13. What is HDLC?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
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
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
Theoretical

14. What is the MAC address?
48 bit address used to identify networking cards and appliances
Wide Area Network
Presentation layer.
Physical - Data Link. Network - Transport

15. What are considered the Data Flow layers?
Physical - Data Link. Network - Transport
Hardware address - Ethernet address - BIA - Burned in Address
Transport layer.
ISDN - Integrated Services Digital Network

16. What is the EIA/TIA 232 protocol concerned with?
Presentation layer.
Layer 1 Protocol having to do with serial communication
Physical Layer
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.

17. Where does troublingshooting alway start?
Wide Area Network
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Physical Layer
48 Bits

18. What are some Physical Layer Protocols and Standards?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
IEA RS232 - V.35. Cat 5 - RJ45
ISDN - Integrated Services Digital Network
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

19. What is layer 7 of the OSI model?
Physical - Data Link. Network - Transport
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Application layer.
Physical layer.

20. What is the 'medium access controller'?
MAC SubLayer - LLC SubLayer
High-Level Data Link Control
Logicial Link Control
The hardware that implements the MAC.

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

22. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
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
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

23. What is the purpose of the OSI Model?
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
Wide Area Network
International Standards Organization

24. Which OSI model layer is concerned with MAC addresses?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Layer 2 - The Data Link 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
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

25. What is the Physical Layer responsible for?

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26. 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
International Standards Organization
Hardware address - Ethernet address - BIA - Burned in Address
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

27. What does the acronym 'WAN' stand for?
Presentation layer.
Wide Area Network
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Network layer.

28. What does the acronym 'ATM' stand for?
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Asynchronous Transfer Mode
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Hardware address - Ethernet address - BIA - Burned in Address

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

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30. 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
Layer 2 - The Data Link layer.
Data Flow layers.
Provide a model to discribe how data moves from source device to destination device.

31. What does the acronym 'HDLC' stand for?
48 Bits
Open Source Interconnect
High-Level Data Link Control
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

32. What is layer 2 of the OSI model?
Transport layer.
ISDN - Integrated Services Digital Network
Point-to-Point Protocol over ATM
Data Link layer.

33. What does the acronym 'PPP' stand for?
Point to Point
Asynchronous Transfer Mode
Data Flow layers.
International Standards Organization

34. OSI layers are...
Media Access Control
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.
Theoretical

35. What is layer 6 of the OSI model?
MAC SubLayer - LLC SubLayer
Layer 1 Protocol having to do with serial communication
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Presentation layer.

36. 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.
The hardware that implements the MAC.
Physical Layer
Layer 2 - The Data Link layer.

37. What are other names for MAC address?
Theoretical
Wide Area Network
Layer 1 Protocol having to do with serial communication
Hardware address - Ethernet address - BIA - Burned in Address

38. What does the acronym 'ISDN' stand for?
Wide Area Network
ISDN - Integrated Services Digital Network
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Physical Layer

39. What is the 'LLC Layer' responsible for?
Hardware address - Ethernet address - BIA - Burned in Address
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
High-Level Data Link Control

40. In an OSI context What is considered 'media'?
Cables - Pins - Electrical Signals
International Standards Organization
The hardware that implements the MAC.
High-Level Data Link Control

41. When would the PPP be used?
When require to communicate between different vendors across the same serial link.
Asynchronous Transfer Mode
Open Source Interconnect
High-Level Data Link Control

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

43. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Layer 2 - The Data Link layer.
Provide a model to discribe how data moves from source device to destination device.
Open Source Interconnect
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

44. What does the acronym 'ISO' stand for?
International Standards Organization
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
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

45. What is the OSI model and why is it important in understanding networking?
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.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
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
Asynchronous Transfer Mode

46. What does the acronym 'PPPoA' stand for?
Data Flow layers.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Presentation layer.
Point-to-Point Protocol over ATM

47. What does the acronym default 'HDLC' protocol stand for?
Point-to-Point Protocol over ATM
Point to Point
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

48. What are the advantages of the OSI model?
Wide Area Network
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Cables - Pins - Electrical Signals
High Level Data Link Control

49. What protocols correspond to the Presentation and Session layers?
Session layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Seven
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

50. How many Layers in the OSI Model?
Logicial Link Control
Cables - Pins - Electrical Signals
Physical - Data Link. Network - Transport
Seven

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Cisco Certification OSI Model

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