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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 7 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
Seven
Application layer.
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

2. What protocols correspond to the Presentation and Session 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
Physical Layer
ISDN - Integrated Services Digital Network
Layer 1 Protocol having to do with serial communication

3. What are the first 4 layers of the OSI model called?
The hardware that implements the MAC.
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.
Physical - Data Link. Network - Transport

4. 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.
Provide a model to discribe how data moves from source device to destination device.
Seven
Point-to-Point Protocol over ATM

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

6. In an OSI context What is considered 'media'?
Layer 2 - The Data Link layer.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Open Source Interconnect
Cables - Pins - Electrical Signals

7. What are some Physical Layer Protocols and Standards?
Hardware address - Ethernet address - BIA - Burned in Address
International Standards Organization
IEA RS232 - V.35. Cat 5 - RJ45
Local Area Network

8. What is the purpose of the OSI Model?
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
48 bit address used to identify networking cards and appliances
Provide a model to discribe how data moves from source device to destination device.

9. 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
Data Flow layers.
Presentation layer.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

10. What is layer 3 of the OSI model?
Application layer.
International Standards Organization
High-Level Data Link Control
Network layer.

11. When would the PPP be used?
When require to communicate between different vendors across the same serial link.
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
The hardware that implements the MAC.
Data Flow layers.

12. How bits are in a 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.
High-Level Data Link Control
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
48 Bits

13. What are other names for MAC address?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
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.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Hardware address - Ethernet address - BIA - Burned in Address

14. What is the Physical Layer responsible for?

15. What is layer 5 of the OSI model?
Point to Point
Session layer.
Network layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

16. What does the acronym 'PPPoA' stand for?
Presentation layer.
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
Point-to-Point Protocol over ATM

17. What does the acronym 'LAN' stand for?
Physical - Data Link. Network - Transport
Local Area Network
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.

18. What does the acronym 'ATM' stand for?
Physical - Data Link. Network - Transport
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Asynchronous Transfer Mode
Theoretical

19. 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
Application layer.
48 bit address used to identify networking cards and appliances
Physical - Data Link. Network - Transport

20. What are considered the Data Flow layers?
Hardware address - Ethernet address - BIA - Burned in Address
Physical - Data Link. Network - Transport
Point-to-Point Protocol over ATM
Open Source Interconnect

21. What does the acronym 'WAN' stand for?
Data Link layer.
Provide a model to discribe how data moves from source device to destination device.
Wide Area Network
Theoretical

22. How many Layers in the OSI Model?
Seven
48 Bits
Transport layer.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

23. What does the acronym 'HDLC' stand for?
Wide Area 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
High-Level Data Link Control
Network layer.

24. What is layer 2 of the OSI model?
Seven
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.
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
Data Link layer.

25. What are the advantages of the OSI model?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
International Standards Organization
High Level Data Link Control
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

26. 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
Physical Layer
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
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

27. 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
Data Flow layers.
Open Source Interconnect
Point-to-Point Protocol over ATM

28. What is the difference between the TCP and UDP protocols?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
IEA RS232 - V.35. Cat 5 - RJ45
Data Link layer.

29. What is the 'LLC Layer' responsible for?
Point-to-Point Protocol over ATM
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
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

30. What is layer 1 of the OSI model?
Physical layer.
Network layer.
Seven
48 Bits

31. Frame Relay
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
Application layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
International Standards Organization

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

33. What does the acronym 'ISO' stand for?
Provide a model to discribe how data moves from source device to destination device.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
International Standards Organization
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

34. What is the OSI model and why is it important in understanding networking?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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
Cables - Pins - Electrical Signals

35. Which OSI model layer is concerned with MAC addresses?
Layer 1 Protocol having to do with serial communication
Layer 2 - The Data Link layer.
Media Access Control
Seven

36. 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)
High-Level Data Link Control
When require to communicate between different vendors across the same serial link.
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.

37. How does the third OSI model layer relate to administering routers?
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
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
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

38. What is the 'medium access controller'?
The hardware that implements the MAC.
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 bit address used to identify networking cards and appliances
Presentation layer.

39. What is HDLC?
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
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
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.

40. What does the acronym 'ISDN' stand for?
48 Bits
ISDN - Integrated Services Digital Network
Theoretical
Physical layer.

41. OSI layers are...
Theoretical
Physical - Data Link. Network - Transport
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Local Area Network

42. What does the acronym default 'HDLC' protocol stand for?
Cables - Pins - Electrical Signals
Seven
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
High Level Data Link Control

43. What does the acronym 'OSI' stand for?
Physical Layer
Physical - Data Link. Network - Transport
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
Open Source Interconnect

44. What does the acronym 'LLC' stand for?
Session layer.
Logicial Link Control
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Application layer.

45. Where does troublingshooting alway start?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Seven
IEA RS232 - V.35. Cat 5 - RJ45
Physical Layer

46. 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
48 Bits
ISDN - Integrated Services Digital Network
MAC SubLayer - LLC SubLayer

47. What does the acronym 'PPP' stand for?
Point to Point
Cables - Pins - Electrical Signals
Data Flow layers.
When require to communicate between different vendors across the same serial link.

48. What is the 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
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
48 bit address used to identify networking cards and appliances
Hardware address - Ethernet address - BIA - Burned in Address

49. What is the EIA/TIA 232 protocol concerned with?
Point to Point
Physical Layer
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Layer 1 Protocol having to do with serial communication

50. What is layer 4 of the OSI model?
Transport 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
48 bit address used to identify networking cards and appliances
Physical - Data Link. Network - Transport