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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. OSI layers are...
Provide a model to discribe how data moves from source device to destination device.
Theoretical
Hardware address - Ethernet address - BIA - Burned in Address
Physical layer.

2. What does the acronym 'LAN' 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.
48 Bits
Local Area Network
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

3. How does the third OSI model layer relate to administering routers?
Physical - Data Link. Network - Transport
IEA RS232 - V.35. Cat 5 - RJ45
Seven
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

4. What protocols correspond to the Presentation and Session layers?
Point to Point
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
High Level Data Link Control
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

5. What are considered the Data Flow layers?
Data Link layer.
Point-to-Point Protocol over ATM
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Physical - Data Link. Network - Transport

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

7. What is layer 6 of the OSI model?
Presentation layer.
Logicial Link Control
Application layer.
High-Level Data Link Control

8. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Cables - Pins - Electrical Signals
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
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
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

9. What does the acronym 'MAC' stand for?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
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
Provide a model to discribe how data moves from source device to destination device.
Media Access Control

10. What is ATM?
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.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
IEA RS232 - V.35. Cat 5 - RJ45

11. What does the acronym 'ISO' stand for?
Theoretical
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Point-to-Point Protocol over ATM
International Standards Organization

12. What is the 'LLC Layer' responsible for?
Local Area Network
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
Logicial Link Control

13. What does the acronym 'ATM' stand for?
When require to communicate between different vendors across the same serial link.
Asynchronous Transfer Mode
Network layer.
Presentation layer.

14. Which OSI model layer is concerned with MAC addresses?
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.
Asynchronous Transfer Mode
Presentation layer.
Layer 2 - The Data Link layer.

15. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
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.
Session layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

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

17. What is layer 4 of the OSI model?
Logicial Link Control
When require to communicate between different vendors across the same serial link.
Transport 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

18. What is the OSI model and why is it important in understanding networking?
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.
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
48 Bits

19. What are some Physical Layer Protocols and Standards?
IEA RS232 - V.35. Cat 5 - RJ45
Network layer.
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

20. What does the acronym 'LLC' stand for?
IEA RS232 - V.35. Cat 5 - RJ45
Data Flow layers.
Hardware address - Ethernet address - BIA - Burned in Address
Logicial Link Control

21. What is layer 3 of the OSI model?
Network layer.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Physical - Data Link. Network - Transport

22. What is the purpose of the OSI Model?
Logicial Link Control
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.
Hardware address - Ethernet address - BIA - Burned in Address

23. What is the Physical Layer responsible for?

24. What are other names for MAC address?
Layer 2 - The Data Link layer.
High Level Data Link Control
Network layer.
Hardware address - Ethernet address - BIA - Burned in Address

25. What is layer 5 of the OSI model?
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
Session layer.
The hardware that implements the MAC.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

26. How many Layers in 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
Transport layer.
Logicial Link Control
Seven

27. What does the acronym 'PPP' stand for?
Provide a model to discribe how data moves from source device to destination device.
Point to Point
Wide Area Network
Session layer.

28. 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
When require to communicate between different vendors across the same serial link.
Logicial Link Control
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

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

30. What is layer 7 of the OSI model?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Physical - Data Link. Network - Transport
High Level Data Link Control
Application layer.

31. What is layer 2 of the OSI model?
Session layer.
Open Source Interconnect
Data Link layer.
48 Bits

32. What does the acronym 'WAN' stand for?
Provide a model to discribe how data moves from source device to destination device.
Wide Area Network
Session layer.
The hardware that implements the MAC.

33. How bits are in a MAC address?
High Level Data Link Control
Wide Area Network
48 Bits
48 bit address used to identify networking cards and appliances

34. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
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
ISDN - Integrated Services Digital Network
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

35. What does the acronym 'OSI' stand for?
Open Source Interconnect
Hardware address - Ethernet address - BIA - Burned in Address
Asynchronous Transfer Mode
Data Link layer.

36. What is the difference between the TCP and UDP protocols?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
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
High-Level Data Link Control

37. What is the 'medium access controller'?
The hardware that implements the MAC.
MAC SubLayer - LLC SubLayer
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Presentation layer.

38. When would the PPP be used?
MAC SubLayer - LLC SubLayer
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
When require to communicate between different vendors across the same serial link.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

39. What does the acronym 'ISDN' stand for?
When require to communicate between different vendors across the same serial link.
Cables - Pins - Electrical Signals
ISDN - Integrated Services Digital Network
Network layer.

40. Frame Relay
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
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
High-Level Data Link Control

41. What is layer 1 of the OSI model?
Application layer.
Physical layer.
Open Source Interconnect
Network layer.

42. What is HDLC?
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
48 bit address used to identify networking cards and appliances
Point to Point

43. What does the acronym default 'HDLC' protocol stand for?
Local Area Network
High Level Data Link Control
Session 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

44. In an OSI context What is considered 'media'?
Layer 2 - The Data Link layer.
When require to communicate between different vendors across the same serial link.
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

45. What are are the 'Sub Layers' of the 'Data Link' Layer?
Network layer.
MAC SubLayer - LLC SubLayer
Point to Point
Layer 1 Protocol having to do with serial communication

46. What is the MAC address?
Layer 2 - The Data Link layer.
48 bit address used to identify networking cards and appliances
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Media Access Control

47. What is the EIA/TIA 232 protocol concerned with?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Point to Point
Layer 1 Protocol having to do with serial communication
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

48. What does the acronym 'PPPoA' stand for?
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)
48 bit address used to identify networking cards and appliances
Point-to-Point Protocol over ATM

49. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
MAC SubLayer - LLC SubLayer
Hardware address - Ethernet address - BIA - Burned in Address
Network layer.

50. Where does troublingshooting alway start?
Theoretical
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 layer.
Physical Layer