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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 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
When require to communicate between different vendors across the same serial link.
Data Flow layers.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

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

3. What does the acronym 'ATM' stand for?
Asynchronous Transfer Mode
Application layer.
ISDN - Integrated Services Digital Network
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

4. 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
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Data Flow layers.
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 does the acronym 'WAN' stand 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
Wide Area Network
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Physical Layer

6. What does the acronym 'HDLC' stand for?
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
Logicial Link Control
Application layer.
High-Level Data Link Control

7. What is layer 7 of the OSI model?
48 Bits
Wide Area Network
Application layer.
Theoretical

8. OSI layers are...
High-Level Data Link Control
Theoretical
MAC SubLayer - LLC SubLayer
Physical Layer

9. 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
Point to Point
48 Bits
Session layer.

10. What is the 'MAC Layer' responsible for?
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.
MAC SubLayer - LLC SubLayer
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

11. What are some Physical Layer Protocols and Standards?
The hardware that implements the MAC.
Wide Area Network
IEA RS232 - V.35. Cat 5 - RJ45
48 bit address used to identify networking cards and appliances

12. In an OSI context What is considered 'media'?
Cables - Pins - Electrical Signals
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
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

13. What does the acronym 'ISDN' stand 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
IEA RS232 - V.35. Cat 5 - RJ45
Data Link layer.
ISDN - Integrated Services Digital Network

14. What is layer 1 of the OSI model?
Seven
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
Physical layer.

15. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
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.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

16. What are the first 4 layers of the OSI model called?
Session layer.
48 bit address used to identify networking cards and appliances
Data Flow layers.
Physical Layer

17. What is layer 2 of the OSI model?
Asynchronous Transfer Mode
Physical Layer
Data Link layer.
High-Level Data Link Control

18. Where does troublingshooting alway start?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
ISDN - Integrated Services Digital Network
Physical Layer
International Standards Organization

19. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
Transport layer.
Point to Point
Session layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

20. What is ATM?
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
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.
Open Source Interconnect

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

22. What protocols correspond to the Presentation and Session layers?
Theoretical
ISDN - Integrated Services Digital Network
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
International Standards Organization

23. Frame Relay
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Network layer.
When require to communicate between different vendors across the same serial link.
High-Level Data Link Control

24. What does the acronym default 'HDLC' protocol stand for?
Asynchronous Transfer Mode
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Logicial Link Control
High Level Data Link Control

25. What is the difference between the TCP and UDP protocols?
Physical - Data Link. Network - Transport
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Physical Layer
Asynchronous Transfer Mode

26. When would the PPP be used?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
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.
When require to communicate between different vendors across the same serial link.
Theoretical

27. What does the acronym 'OSI' stand for?
Media Access Control
Layer 2 - The Data Link layer.
Theoretical
Open Source Interconnect

28. What are considered the Data Flow layers?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Open Source Interconnect
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

29. What does the acronym 'ISO' 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
Physical Layer
International Standards Organization
The hardware that implements the MAC.

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

31. What is layer 6 of the OSI model?
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.
Presentation layer.
The hardware that implements the MAC.

32. What is the Physical Layer responsible for?

33. Which OSI model layer is concerned with MAC addresses?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Layer 2 - The Data Link layer.
International Standards Organization
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 is the 'medium access controller'?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Physical Layer
The hardware that implements the MAC.
Physical - Data Link. Network - Transport

35. How many Layers in the OSI Model?
48 bit address used to identify networking cards and appliances
Cables - Pins - Electrical Signals
Seven
ISDN - Integrated Services Digital Network

36. How bits are in a MAC address?
Layer 1 Protocol having to do with serial communication
Transport layer.
48 Bits
Point-to-Point Protocol over ATM

37. What does the acronym 'LAN' stand 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
Local Area Network
Presentation layer.
Point to Point

38. What does the acronym 'PPP' stand for?
Point to Point
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
IEA RS232 - V.35. Cat 5 - RJ45
Local Area Network

39. What is the purpose 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
IEA RS232 - V.35. Cat 5 - RJ45
Data Link layer.

40. 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
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
Point-to-Point Protocol over ATM
Logicial Link Control

41. What is the OSI model and why is it important in understanding networking?
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 technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Layer 2 - The Data Link layer.
High-Level Data Link Control

42. What is layer 5 of the OSI model?
Point to Point
Session layer.
48 Bits
Media Access Control

43. What is the MAC address?
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
Point-to-Point Protocol over ATM
48 bit address used to identify networking cards and appliances

44. What is the EIA/TIA 232 protocol concerned with?
ISDN - Integrated Services Digital Network
Layer 1 Protocol having to do with serial communication
MAC SubLayer - LLC SubLayer
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

45. 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
High-Level Data Link Control
Point-to-Point Protocol over ATM
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

46. What are other names for MAC address?
Theoretical
48 bit address used to identify networking cards and appliances
Physical Layer
Hardware address - Ethernet address - BIA - Burned in Address

47. What are are the 'Sub Layers' of 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
Layer 2 - The Data Link layer.
MAC SubLayer - LLC SubLayer
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

48. What is layer 3 of the OSI model?
When require to communicate between different vendors across the same serial link.
Session layer.
Network layer.
48 Bits

49. What does the acronym 'MAC' stand for?
Data Flow layers.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Media Access Control
International Standards Organization

50. What does the acronym 'PPPoA' stand for?
Point-to-Point Protocol over ATM
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Hardware address - Ethernet address - BIA - Burned in Address
High Level Data Link Control