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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 are some examples of 'LAN' side Datalink Layer Protocols and Standards?
48 Bits
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
ISDN - Integrated Services Digital Network
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

2. 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.
Local Area Network
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Asynchronous Transfer Mode

3. OSI layers are...
Theoretical
Open Source Interconnect
ISDN - Integrated Services Digital Network
IEA RS232 - V.35. Cat 5 - RJ45

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

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5. How bits are in a MAC 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
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
IEA RS232 - V.35. Cat 5 - RJ45

6. What is layer 5 of the OSI model?
Physical Layer
Network layer.
Session layer.
Local Area Network

7. What is layer 1 of the OSI model?
Wide Area Network
Layer 1 Protocol having to do with serial communication
Asynchronous Transfer Mode
Physical layer.

8. What is the purpose of the OSI Model?
Seven
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.
Open Source Interconnect

9. What does the acronym 'OSI' stand for?
Asynchronous Transfer Mode
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Open Source Interconnect

10. What are considered the Data Flow layers?
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Physical - Data Link. Network - Transport
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 Layer

11. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
Asynchronous Transfer Mode
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Open Source Interconnect
Application layer.

12. What is the 'medium access controller'?
Media Access Control
When require to communicate between different vendors across the same serial link.
The hardware that implements the MAC.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

13. Frame Relay
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
The hardware that implements the MAC.
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.
High-Level Data Link Control

14. What is the 'MAC Layer' responsible for?
Physical Layer
Layer 2 - The Data Link layer.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
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

15. How many Layers in the OSI Model?
Layer 1 Protocol having to do with serial communication
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Seven

16. What does the acronym 'ATM' stand for?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Media Access Control
Asynchronous Transfer Mode
Data Flow layers.

17. What is layer 2 of the OSI model?
Seven
48 Bits
ISDN - Integrated Services Digital Network
Data Link layer.

18. What is the MAC address?
48 bit address used to identify networking cards and appliances
Layer 2 - The Data Link layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Hardware address - Ethernet address - BIA - Burned in Address

19. What are the advantages of the OSI model?
Layer 1 Protocol having to do with serial communication
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.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

20. What does the acronym 'MAC' stand for?
Layer 1 Protocol having to do with serial communication
ISDN - Integrated Services Digital Network
Media Access Control
Wide Area Network

21. What does the acronym 'ISDN' stand for?
IEA RS232 - V.35. Cat 5 - RJ45
When require to communicate between different vendors across the same serial link.
ISDN - Integrated Services Digital Network
48 bit address used to identify networking cards and appliances

22. What is layer 6 of the OSI model?
Presentation layer.
Local Area Network
Layer 1 Protocol having to do with serial communication
Provide a model to discribe how data moves from source device to destination device.

23. What does the acronym default 'HDLC' protocol stand for?
High Level Data Link Control
Point-to-Point Protocol over ATM
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Network layer.

24. What is layer 7 of the OSI model?
ISDN - Integrated Services Digital Network
Logicial Link Control
Application layer.
High-Level Data Link Control

25. What is the Physical Layer responsible for?

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26. When would the PPP be used?
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)
High-Level Data Link Control
When require to communicate between different vendors across the same serial link.

27. What is the difference between the TCP and UDP protocols?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Wide Area Network
Transport layer.

28. What are the first 4 layers of the OSI model called?
Data Link layer.
Data Flow layers.
Network layer.
When require to communicate between different vendors across the same serial link.

29. What does the acronym 'WAN' stand for?
Wide Area Network
MAC SubLayer - LLC SubLayer
Asynchronous Transfer Mode
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

30. What does the acronym 'PPP' stand for?
Cables - Pins - Electrical Signals
ISDN - Integrated Services Digital Network
Point to Point
High-Level Data Link Control

31. Which OSI model layer is concerned with MAC addresses?
Network layer.
Layer 2 - The Data Link layer.
Point to Point
Open Source Interconnect

32. Where does troublingshooting alway start?
Physical - Data Link. Network - Transport
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Transport layer.
Physical Layer

33. What does the acronym 'ISO' stand for?
Open Source Interconnect
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
High-Level Data Link Control

34. What is the EIA/TIA 232 protocol concerned with?
Layer 1 Protocol having to do with serial communication
When require to communicate between different vendors across the same serial link.
High Level Data Link Control
Application layer.

35. 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
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
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
Cables - Pins - Electrical Signals

36. What are are the 'Sub Layers' of the 'Data Link' Layer?
48 bit address used to identify networking cards and appliances
Open Source Interconnect
MAC SubLayer - LLC SubLayer
Transport layer.

37. What are some Physical Layer Protocols and Standards?
Cables - Pins - Electrical Signals
Local Area Network
IEA RS232 - V.35. Cat 5 - RJ45
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.

38. What is layer 3 of the OSI model?
48 Bits
Network 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
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

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

40. What does the acronym 'LAN' stand for?
Local Area Network
Cables - Pins - Electrical Signals
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
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

41. What is the 'LLC Layer' responsible for?
Open Source Interconnect
When require to communicate between different vendors across the same serial link.
Local Area Network
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

42. 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
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
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

43. In an OSI context What is considered '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
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Asynchronous Transfer Mode
Cables - Pins - Electrical Signals

44. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Presentation layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Layer 2 - The Data Link layer.
The hardware that implements the MAC.

45. 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
Data Link layer.
Cables - Pins - Electrical Signals
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

46. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
Physical - Data Link. Network - Transport
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)
48 Bits

47. What does the acronym 'LLC' stand for?
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
Logicial Link Control
48 Bits

48. What is layer 4 of the OSI model?
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
Transport 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.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

49. 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
MAC SubLayer - LLC SubLayer
Point to Point
Provide a model to discribe how data moves from source device to destination device.

50. What are other names for MAC address?
When require to communicate between different vendors across the same serial link.
Hardware address - Ethernet address - BIA - Burned in Address
Cables - Pins - Electrical Signals
Layer 1 Protocol having to do with serial communication