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

2. What does the acronym 'LLC' 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
Logicial Link Control
Wide Area Network
Data Link layer.

3. What does the acronym 'ISO' stand for?
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
Media Access Control
Open Source Interconnect

4. 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
High Level Data Link Control
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

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

6. What are other names for MAC address?
Hardware address - Ethernet address - BIA - Burned in Address
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
International Standards Organization
IEA RS232 - V.35. Cat 5 - RJ45

7. What does the acronym default 'HDLC' protocol stand for?
High Level Data Link Control
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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

8. What are the advantages of the OSI model?
International Standards Organization
Hardware address - Ethernet address - BIA - Burned in Address
Cables - Pins - Electrical Signals
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

9. How many Layers in the OSI Model?
Layer 1 Protocol having to do with serial communication
IEA RS232 - V.35. Cat 5 - RJ45
Cables - Pins - Electrical Signals
Seven

10. What does the acronym 'ATM' stand for?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Asynchronous Transfer Mode
Theoretical
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

11. Where does troublingshooting alway start?
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Physical Layer
ISDN - Integrated Services Digital Network
Point-to-Point Protocol over ATM

12. What does the acronym 'ISDN' stand for?
ISDN - Integrated Services Digital Network
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Point-to-Point Protocol over ATM
48 bit address used to identify networking cards and appliances

13. What is the purpose of the OSI Model?
Network 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
When require to communicate between different vendors across the same serial link.
Provide a model to discribe how data moves from source device to destination device.

14. Which OSI model layer is concerned with MAC addresses?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Layer 2 - The Data Link layer.
Physical Layer
When require to communicate between different vendors across the same serial link.

15. What is ATM?
Physical layer.
ISDN - Integrated Services Digital Network
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.

16. What is layer 6 of the OSI model?
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.
Presentation layer.
Wide Area Network
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

17. What is layer 3 of the OSI model?
Physical - Data Link. Network - Transport
Local Area Network
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Network layer.

18. What is layer 1 of the OSI model?
Seven
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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

19. What does the acronym 'MAC' stand for?
High Level Data Link Control
Media Access Control
High-Level Data Link Control
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

20. What is HDLC?
Application layer.
High Level Data Link Control
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 1 Protocol having to do with serial communication

21. What is layer 7 of the OSI model?
Provide a model to discribe how data moves from source device to destination device.
Point-to-Point Protocol over ATM
Application layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

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

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23. What does the acronym 'PPP' stand for?
Physical layer.
Logicial Link Control
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

24. What does the acronym 'WAN' stand for?
Local Area Network
48 bit address used to identify networking cards and appliances
Wide 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

25. When would the PPP be used?
High Level Data Link Control
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
When require to communicate between different vendors across the same serial link.

26. What are are the 'Sub Layers' of the 'Data Link' Layer?
Layer 1 Protocol having to do with serial communication
Wide Area Network
MAC SubLayer - LLC SubLayer
Theoretical

27. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
When require to communicate between different vendors across the same serial link.
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
Data Flow layers.

28. What is the OSI model and why is it important in understanding networking?
High-Level Data Link Control
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

29. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
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
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
International Standards Organization
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

30. What is the 'MAC Layer' responsible for?
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
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
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.

31. In an OSI context What is considered 'media'?
Physical 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
MAC SubLayer - LLC SubLayer

32. What is the EIA/TIA 232 protocol concerned with?
Data Link layer.
Layer 1 Protocol having to do with serial communication
Theoretical
International Standards Organization

33. What is the MAC address?
Layer 2 - The Data Link layer.
48 bit address used to identify networking cards and appliances
International Standards Organization
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

34. What does the acronym 'HDLC' stand for?
High-Level Data Link Control
Session 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
48 Bits

35. What is the 'LLC Layer' responsible for?
When require to communicate between different vendors across the same serial link.
Layer 1 Protocol having to do with serial communication
48 bit address used to identify networking cards and appliances
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

36. What is the 'medium access controller'?
The hardware that implements the MAC.
MAC SubLayer - LLC SubLayer
High-Level Data Link Control
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

37. What is layer 4 of the OSI model?
Transport layer.
48 Bits
ISDN - Integrated Services Digital Network
Layer 2 - The Data Link layer.

38. What is layer 2 of the OSI model?
Data Link layer.
48 bit address used to identify networking cards and appliances
Point to Point
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.

39. Frame Relay
Physical layer.
Provide a model to discribe how data moves from source device to destination device.
International Standards Organization
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

40. What does the acronym 'OSI' stand for?
Open Source Interconnect
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
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

41. What is the Physical Layer responsible for?

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42. What is layer 5 of the OSI model?
Point-to-Point Protocol over ATM
Asynchronous Transfer Mode
Session 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.

43. 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)
Layer 2 - The Data Link layer.
ISDN - Integrated Services Digital Network
Point to Point

44. What are the first 4 layers of the OSI model called?
Data Flow layers.
Layer 1 Protocol having to do with serial communication
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

45. What protocols correspond to the Presentation and Session layers?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Layer 2 - The Data Link layer.
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

46. What are considered the Data Flow layers?
Data Flow layers.
High-Level Data Link Control
Physical - Data Link. Network - Transport
Wide Area Network

47. What does the acronym 'LAN' stand for?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Data Link layer.
Local Area Network

48. How does the third OSI model layer relate to administering routers?
48 Bits
Point-to-Point Protocol over ATM
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

49. OSI layers are...
Physical - Data Link. Network - Transport
Theoretical
Logicial Link Control
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

50. What are some Physical Layer Protocols and Standards?
When require to communicate between different vendors across the same serial link.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Physical Layer
IEA RS232 - V.35. Cat 5 - RJ45