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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 the difference between the TCP and UDP protocols?
Presentation layer.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Point-to-Point Protocol over ATM
Network layer.

2. What are the first 4 layers of the OSI model called?
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
Data Flow layers.
Provide a model to discribe how data moves from source device to destination device.
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

3. Where does troublingshooting alway start?
Theoretical
When require to communicate between different vendors across the same serial link.
Physical Layer
Presentation layer.

4. What is the purpose of the OSI Model?
Point-to-Point Protocol over ATM
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
Provide a model to discribe how data moves from source device to destination device.

5. What does the acronym 'MAC' stand for?
Media Access Control
Seven
Transport layer.
Cables - Pins - Electrical Signals

6. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
Session 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
Provide a model to discribe how data moves from source device to destination device.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

7. 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
Session layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Open Source Interconnect

8. What protocols correspond to the Presentation and Session layers?
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
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
Seven

9. What does the acronym 'WAN' stand for?
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
Open Source Interconnect
IEA RS232 - V.35. Cat 5 - RJ45

10. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Logicial Link Control
Application layer.
MAC SubLayer - LLC SubLayer
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

11. What is HDLC?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
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 Bits
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

12. What does the acronym 'ATM' stand for?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Asynchronous Transfer Mode
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Hardware address - Ethernet address - BIA - Burned in Address

13. In an OSI context What is considered 'media'?
Cables - Pins - Electrical Signals
Physical Layer
Transport layer.
MAC SubLayer - LLC SubLayer

14. What is layer 2 of the OSI model?
Layer 2 - The Data Link layer.
Physical layer.
Session layer.
Data Link layer.

15. What is layer 6 of the OSI model?
Presentation layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
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.
High-Level Data Link Control

16. What is layer 3 of the OSI model?
Logicial Link Control
Network layer.
Provide a model to discribe how data moves from source device to destination device.
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. What is layer 1 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
MAC SubLayer - LLC SubLayer
Physical layer.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

18. OSI layers are...
Theoretical
Open Source Interconnect
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
Physical - Data Link. Network - Transport

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

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

21. What does the acronym 'ISDN' stand for?
Data Flow layers.
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
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
ISDN - Integrated Services Digital Network

22. What are are the 'Sub Layers' of the 'Data Link' Layer?
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.
Network layer.
MAC SubLayer - LLC SubLayer

23. What is ATM?
Hardware address - Ethernet address - BIA - Burned in Address
IEA RS232 - V.35. Cat 5 - RJ45
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.

24. What is layer 4 of the OSI model?
Transport layer.
Media Access Control
Network layer.
Point-to-Point Protocol over ATM

25. What does the acronym default 'HDLC' protocol stand for?
High Level Data Link Control
Media Access Control
Theoretical
Presentation layer.

26. Which OSI model layer is concerned with MAC addresses?
Asynchronous Transfer Mode
Local Area Network
Network layer.
Layer 2 - The Data Link layer.

27. When would the PPP be used?
When require to communicate between different vendors across the same serial link.
Data Flow layers.
Hardware address - Ethernet address - BIA - Burned in Address
Local Area Network

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

29. What is the Physical Layer responsible for?

30. What are other names for MAC address?
48 bit address used to identify networking cards and appliances
Hardware address - Ethernet address - BIA - Burned in Address
IEA RS232 - V.35. Cat 5 - RJ45
High-Level Data Link Control

31. 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
Data Flow layers.
When require to communicate between different vendors across the same serial link.
Seven

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

33. What is the 'medium access controller'?
The hardware that implements the MAC.
Point to Point
Point-to-Point Protocol over ATM
Local Area Network

34. How many Layers in the OSI Model?
Physical Layer
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Seven

35. How bits are in a MAC address?
48 Bits
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
Physical - Data Link. Network - Transport

36. What does the acronym 'HDLC' stand for?
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.
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
High-Level Data Link Control

37. Frame Relay
ISDN - Integrated Services Digital Network
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.
The hardware that implements the MAC.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

38. What does the acronym 'LAN' stand for?
High-Level Data Link Control
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.
Local Area 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

39. What are some Physical Layer Protocols and Standards?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
IEA RS232 - V.35. Cat 5 - RJ45
Data Flow layers.

40. What is layer 5 of the OSI model?
Session 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
Layer 2 - The Data Link layer.
Logicial Link Control

41. What is the EIA/TIA 232 protocol concerned with?
Layer 1 Protocol having to do with serial communication
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
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
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

42. What is layer 7 of the OSI model?
Application layer.
Presentation layer.
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

43. How does the third OSI model layer relate to administering routers?
Seven
Open Source Interconnect
Transport layer.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

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

45. What is the MAC address?
Layer 1 Protocol having to do with serial communication
Media Access Control
48 bit address used to identify networking cards and appliances
High Level Data Link Control

46. What does the acronym 'ISO' stand for?
MAC SubLayer - LLC SubLayer
ISDN - Integrated Services Digital Network
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
International Standards Organization

47. What are considered the Data Flow layers?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Physical - Data Link. Network - Transport
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

48. What does the acronym 'LLC' stand for?
Transport layer.
48 Bits
Logicial Link Control
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

49. 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
Open Source Interconnect
Hardware address - Ethernet address - BIA - Burned in Address
Asynchronous Transfer Mode

50. What does the acronym 'PPP' stand for?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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