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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 layer 1 of the OSI model?
Network layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Physical layer.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

2. What does the acronym 'LAN' stand for?
Physical layer.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Local Area Network
Open Source Interconnect

3. What is the OSI model and why is it important in understanding networking?
The hardware that implements the MAC.
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
Transport layer.
Wide Area Network

4. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
Asynchronous Transfer Mode
Provide a model to discribe how data moves from source device to destination device.
When require to communicate between different vendors across the same serial link.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

5. What are some Physical Layer Protocols and Standards?
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
IEA RS232 - V.35. Cat 5 - RJ45
Point-to-Point Protocol over ATM

6. What is the 'medium access controller'?
Point to Point
Layer 1 Protocol having to do with serial communication
The hardware that implements the MAC.
Physical - Data Link. Network - Transport

7. What does the acronym 'ISO' stand for?
Layer 1 Protocol having to do with serial communication
International Standards Organization
48 Bits
Application layer.

8. How many Layers in the OSI Model?
Asynchronous Transfer Mode
Seven
Layer 2 - The Data Link layer.
Media Access Control

9. What is the MAC address?
Asynchronous Transfer Mode
48 bit address used to identify networking cards and appliances
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 2 - The Data Link layer.

10. Where does troublingshooting alway start?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Physical Layer
Open Source Interconnect
Layer 2 - The Data Link layer.

11. OSI layers are...
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
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
Theoretical
Physical Layer

12. What are other names for MAC address?
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
Presentation layer.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Hardware address - Ethernet address - BIA - Burned in Address

13. What does the acronym 'HDLC' stand for?
High-Level Data Link Control
The hardware that implements the MAC.
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
Point to Point

14. 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
Point-to-Point Protocol over ATM
Layer 2 - The Data Link layer.

15. What are the first 4 layers of the OSI model called?
Layer 1 Protocol having to do with serial communication
Data Flow layers.
The hardware that implements the MAC.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

16. In an OSI context What is considered 'media'?
MAC SubLayer - LLC SubLayer
Cables - Pins - Electrical Signals
Layer 2 - The Data Link layer.
48 Bits

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

18. What does the acronym 'PPPoA' stand for?
Point-to-Point Protocol over ATM
Data Link layer.
High-Level Data Link Control
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

19. What are considered the Data Flow layers?
Physical - Data Link. Network - Transport
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
Logicial Link Control
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

20. What is the purpose of the OSI Model?
Open Source Interconnect
Provide a model to discribe how data moves from source device to destination device.
Theoretical
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

21. What does the acronym 'MAC' stand for?
IEA RS232 - V.35. Cat 5 - RJ45
When require to communicate between different vendors across the same serial link.
Media Access Control
Provide a model to discribe how data moves from source device to destination device.

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

23. What does the acronym default 'HDLC' protocol stand for?
ISDN - Integrated Services Digital Network
High Level Data Link Control
MAC SubLayer - LLC SubLayer
Open Source Interconnect

24. How bits are in a MAC address?
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
Theoretical
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

25. What does the acronym 'OSI' stand for?
IEA RS232 - V.35. Cat 5 - RJ45
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
High-Level Data Link Control
Open Source Interconnect

26. What is the EIA/TIA 232 protocol concerned with?
Layer 1 Protocol having to do with serial communication
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.
Point-to-Point Protocol over ATM

27. What does the acronym 'PPP' stand for?
MAC SubLayer - LLC SubLayer
Logicial Link Control
48 bit address used to identify networking cards and appliances
Point to Point

28. What protocols correspond to the Presentation and Session layers?
Wide Area Network
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
48 Bits
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 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.
Asynchronous Transfer Mode
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

30. What is layer 6 of the OSI model?
Theoretical
Presentation layer.
48 Bits
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

31. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
ISDN - Integrated Services Digital Network
Theoretical
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Application layer.

32. Frame Relay
Local Area Network
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
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

33. What is the difference between the TCP and UDP protocols?
Wide Area Network
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
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

34. What is layer 7 of the OSI model?
Data Flow layers.
Application layer.
Local Area Network
IEA RS232 - V.35. Cat 5 - RJ45

35. What is the 'MAC Layer' responsible for?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
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
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

36. What is the Physical Layer responsible for?

37. What is layer 5 of the OSI model?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Session layer.
Point to Point
Physical Layer

38. What does the acronym 'LLC' stand for?
Logicial Link Control
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
ISDN - Integrated Services Digital Network
Network layer.

39. What is ATM?
Data Flow layers.
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.
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.

40. What does the acronym 'WAN' stand for?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Wide Area Network
High-Level Data Link Control
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

41. What is HDLC?
48 bit address used to identify networking cards and appliances
Network layer.
International Standards Organization
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

42. What is the 'LLC Layer' responsible 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
Layer 2 - The Data Link layer.
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

43. What does the acronym 'ISDN' stand for?
Physical layer.
ISDN - Integrated Services Digital Network
Logicial Link Control
Layer 1 Protocol having to do with serial communication

44. 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
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Physical - Data Link. Network - Transport
48 Bits

45. What is layer 2 of the OSI model?
Seven
Network layer.
Data Link layer.
The hardware that implements the MAC.

46. Which OSI model layer is concerned with MAC addresses?
Layer 2 - The Data Link layer.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Cables - Pins - Electrical Signals
Wide Area Network

47. What is layer 4 of the OSI model?
Transport layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Cables - Pins - Electrical Signals
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

48. What is layer 3 of the OSI model?
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
Network layer.
Application layer.
Local Area Network

49. When would the PPP be used?
Application layer.
Data Flow layers.
High Level Data Link Control
When require to communicate between different vendors across the same serial link.

50. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Physical layer.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)