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Cisco Certification OSI Model

Instructions:

Answer 50 questions in 15 minutes.
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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...
Theoretical
MAC SubLayer - LLC SubLayer
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Data Flow layers.

2. What does the acronym 'WAN' 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
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
Physical Layer

3. What is the 'medium access controller'?
The hardware that implements the MAC.
Data Flow layers.
Local Area Network
Presentation layer.

4. What protocols correspond to the Presentation and Session layers?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
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
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

5. What is layer 6 of the OSI model?
Physical Layer
Logicial Link Control
Presentation layer.
International Standards Organization

6. 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
Layer 2 - The Data Link layer.
Provide a model to discribe how data moves from source device to destination device.
Seven

7. How many Layers in the OSI Model?
Local Area Network
Session layer.
Seven
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

8. What does the acronym 'HDLC' stand for?
Asynchronous Transfer Mode
High-Level Data Link Control
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Data Flow layers.

9. What does the acronym 'MAC' stand for?
Physical - Data Link. Network - Transport
Presentation layer.
Asynchronous Transfer Mode
Media Access Control

10. 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
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Application 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.

11. How bits are in a MAC address?
48 Bits
Session layer.
Layer 2 - The Data Link layer.
MAC SubLayer - LLC SubLayer

12. What is layer 1 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
Physical layer.
High-Level Data Link Control
Presentation layer.

13. What is ATM?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
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.
Hardware address - Ethernet address - BIA - Burned in Address
Provide a model to discribe how data moves from source device to destination device.

14. What are other names for MAC address?
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
Hardware address - Ethernet address - BIA - Burned in Address
Provide a model to discribe how data moves from source device to destination device.
Data Link layer.

15. What does the acronym 'LLC' stand for?
Logicial Link Control
Local Area Network
Cables - Pins - Electrical Signals
Application layer.

16. What is the EIA/TIA 232 protocol concerned with?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
48 Bits
Presentation layer.
Layer 1 Protocol having to do with serial communication

17. What are the advantages of the OSI model?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Network layer.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

18. 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
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Logicial Link Control

19. What is HDLC?
Layer 2 - The Data Link layer.
Network layer.
Wide Area 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

20. What are considered the Data Flow layers?
Asynchronous Transfer Mode
Physical - Data Link. Network - Transport
Local Area Network
Layer 2 - The Data Link layer.

21. What is the OSI model and why is it important in understanding networking?
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
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.
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

22. What does the acronym 'ISDN' stand for?
High Level Data Link Control
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
ISDN - Integrated Services Digital 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

23. Frame Relay
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
48 Bits
MAC SubLayer - LLC SubLayer
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

24. What does the acronym 'LAN' stand for?
High Level Data Link Control
Point to Point
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Local Area Network

25. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
48 bit address used to identify networking cards and appliances
International Standards Organization
Open Source Interconnect

26. What does the acronym default 'HDLC' protocol stand for?
ISDN - Integrated Services Digital Network
Logicial Link Control
Physical Layer
High Level Data Link Control

27. What does the acronym 'OSI' stand for?
Physical Layer
Open Source Interconnect
Point-to-Point Protocol over ATM
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

28. What are some Physical Layer Protocols and Standards?
IEA RS232 - V.35. Cat 5 - RJ45
Open Source Interconnect
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

29. What is the purpose of the OSI Model?
Media Access Control
Session layer.
Provide a model to discribe how data moves from source device to destination device.
The hardware that implements the MAC.

30. What is the Physical Layer responsible for?

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31. 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
Media Access Control
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Asynchronous Transfer Mode

32. What does the acronym 'PPPoA' stand for?
Application layer.
Open Source Interconnect
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
Point-to-Point Protocol over ATM

33. What is layer 4 of the OSI model?
High Level Data Link Control
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Data Flow layers.
Transport layer.

34. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
Seven
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
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

35. What does the acronym 'PPP' stand for?
Physical Layer
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
Point to Point

36. In an OSI context What is considered 'media'?
Cables - Pins - Electrical Signals
IEA RS232 - V.35. Cat 5 - RJ45
International Standards Organization
The hardware that implements the MAC.

37. What does the acronym 'ISO' stand for?
International Standards Organization
48 bit address used to identify networking cards and appliances
Media Access Control
Local Area Network

38. Where does troublingshooting alway start?
Seven
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
Media Access Control
Physical Layer

39. What are are the 'Sub Layers' of the 'Data Link' Layer?
MAC SubLayer - LLC SubLayer
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Transport layer.
Logicial Link Control

40. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
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
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

41. Which OSI model layer is concerned with MAC addresses?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Open Source Interconnect
MAC SubLayer - LLC SubLayer
Layer 2 - The Data Link layer.

42. What is layer 5 of the OSI model?
Transport layer.
High-Level Data Link Control
Session layer.
International Standards Organization

43. What is layer 7 of the OSI model?
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.
International Standards Organization
Application layer.

44. What is layer 3 of the OSI model?
Point to Point
Network layer.
Provide a model to discribe how data moves from source device to destination device.
The hardware that implements the MAC.

45. What is the MAC address?
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.
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
High-Level Data Link Control

46. What is the difference between the TCP and UDP protocols?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Layer 1 Protocol having to do with serial communication
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
High-Level Data Link Control

47. What is layer 2 of the OSI model?
Data Link layer.
Media Access Control
Asynchronous Transfer Mode
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

48. What are the first 4 layers of the OSI model called?
Point-to-Point Protocol over ATM
Data Flow layers.
Hardware address - Ethernet address - BIA - Burned in Address
Physical layer.

49. What does the acronym 'ATM' stand for?
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.
IEA RS232 - V.35. Cat 5 - RJ45
48 bit address used to identify networking cards and appliances
Asynchronous Transfer Mode

50. When would the PPP be used?
Physical layer.
When require to communicate between different vendors across the same serial link.
Physical Layer
Session layer.