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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 ATM?
Asynchronous Transfer Mode
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
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.

2. What does the acronym 'ATM' stand for?
Network layer.
Hardware address - Ethernet address - BIA - Burned in Address
Data Link layer.
Asynchronous Transfer Mode

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

4. What are some Physical Layer Protocols and Standards?
Session layer.
IEA RS232 - V.35. Cat 5 - RJ45
Data Flow layers.
Open Source Interconnect

5. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
When require to communicate between different vendors across the same serial link.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Presentation layer.
Data Flow layers.

6. What is the difference between the TCP and UDP protocols?
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
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Seven

7. What does the acronym 'LLC' stand for?
Logicial Link Control
Physical Layer
When require to communicate between different vendors across the same serial link.
Seven

8. What are considered the Data Flow layers?
MAC SubLayer - LLC SubLayer
Layer 2 - The Data Link layer.
Wide Area Network
Physical - Data Link. Network - Transport

9. What does the acronym 'LAN' stand for?
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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.
Layer 1 Protocol having to do with serial communication
Local Area Network

10. 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
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Application 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.

11. How does the third OSI model layer relate to administering routers?
International Standards Organization
Data Flow layers.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Wide Area Network

12. What does the acronym 'MAC' stand for?
Hardware address - Ethernet address - BIA - Burned in Address
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
Media Access Control

13. What is layer 1 of the OSI model?
Physical layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Presentation 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

14. What is the MAC address?
Point-to-Point Protocol over ATM
48 bit address used to identify networking cards and appliances
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Layer 2 - The Data Link layer.

15. What is the 'MAC Layer' responsible for?
Media Access Control
Presentation 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.

16. What does the acronym 'WAN' stand for?
Data Link layer.
Wide Area Network
Hardware address - Ethernet address - BIA - Burned in Address
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. Frame Relay
Data Link layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Physical Layer
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

18. What is layer 2 of the OSI model?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Logicial Link Control
When require to communicate between different vendors across the same serial link.
Data Link layer.

19. OSI layers are...
Hardware address - Ethernet address - BIA - Burned in Address
Theoretical
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
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

20. How many Layers in the OSI Model?
Seven
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.
Layer 2 - The Data Link layer.

21. What is layer 7 of the OSI model?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Session layer.
Application layer.
48 bit address used to identify networking cards and appliances

22. What does the acronym 'ISDN' 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.
MAC SubLayer - LLC SubLayer
ISDN - Integrated Services Digital 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

23. What is the 'medium access controller'?
The hardware that implements the MAC.
Layer 1 Protocol having to do with serial communication
Open Source Interconnect
48 bit address used to identify networking cards and appliances

24. How bits are in a MAC address?
48 Bits
48 bit address used to identify networking cards and appliances
Wide Area Network
Cables - Pins - Electrical Signals

25. What does the acronym 'ISO' stand for?
MAC SubLayer - LLC SubLayer
Data Link layer.
Hardware address - Ethernet address - BIA - Burned in Address
International Standards Organization

26. What is layer 5 of the OSI model?
Session layer.
Network layer.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Presentation layer.

27. Where does troublingshooting alway start?
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.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Cables - Pins - Electrical Signals

28. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
Presentation layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
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.
International Standards Organization

29. What are other names for MAC address?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Hardware address - Ethernet address - BIA - Burned in Address
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
Physical - Data Link. Network - Transport

30. What is the EIA/TIA 232 protocol concerned with?
48 Bits
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Layer 1 Protocol having to do with serial communication
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

31. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
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
MAC SubLayer - LLC SubLayer
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Transport layer.

32. What is the 'LLC Layer' responsible for?
Local Area Network
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Physical 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

33. What is the Physical Layer responsible for?

34. What are are the 'Sub Layers' of the 'Data Link' Layer?
MAC SubLayer - LLC SubLayer
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
International Standards Organization
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

35. What are the first 4 layers of the OSI model called?
Data Flow layers.
Physical - Data Link. Network - Transport
International Standards Organization
Application layer.

36. What does the acronym 'PPP' stand for?
Hardware address - Ethernet address - BIA - Burned in Address
Point to Point
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

37. What does the acronym 'PPPoA' stand for?
Layer 2 - The Data Link layer.
Physical Layer
Physical - Data Link. Network - Transport
Point-to-Point Protocol over ATM

38. What does the acronym 'HDLC' stand for?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Application layer.
IEA RS232 - V.35. Cat 5 - RJ45
High-Level Data Link Control

39. When would the PPP be used?
Network layer.
When require to communicate between different vendors across the same serial link.
International Standards Organization
Layer 1 Protocol having to do with serial communication

40. What is layer 3 of the OSI model?
ISDN - Integrated Services Digital Network
Logicial Link Control
Point to Point
Network layer.

41. What is layer 6 of the OSI model?
Application layer.
Logicial 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.
Presentation layer.

42. What are the advantages of the OSI model?
International Standards Organization
Wide Area Network
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
ISDN - Integrated Services Digital Network

43. What does the acronym 'OSI' stand for?
48 bit address used to identify networking cards and appliances
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
48 Bits

44. What is the purpose of the OSI Model?
When require to communicate between different vendors across the same serial link.
48 Bits
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.

45. What does the acronym default 'HDLC' protocol stand for?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
High Level Data Link Control
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
International Standards Organization

46. In an OSI context What is considered 'media'?
Cables - Pins - Electrical Signals
Provide a model to discribe how data moves from source device to destination device.
Open Source Interconnect
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

47. Which OSI model layer is concerned with MAC addresses?
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.
Layer 2 - The Data Link layer.
Presentation layer.

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

49. 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
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Media Access 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

50. What is layer 4 of the OSI model?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Cables - Pins - Electrical Signals
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Transport layer.