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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 the 'Data Link Layer' responsible for?

2. What does the acronym 'PPP' stand for?
Data Link layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Point to Point
Application layer.

3. What are some Physical Layer Protocols and Standards?
Layer 1 Protocol having to do with serial communication
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Provide a model to discribe how data moves from source device to destination device.
IEA RS232 - V.35. Cat 5 - RJ45

4. Frame Relay
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
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

5. What does the acronym 'HDLC' stand for?
High-Level Data Link Control
Point to Point
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Point-to-Point Protocol over ATM

6. What is the MAC address?
Local 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
Physical Layer
48 bit address used to identify networking cards and appliances

7. What is layer 1 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
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.
Physical layer.
Open Source Interconnect

8. What does the acronym 'LLC' stand for?
Logicial Link Control
Cables - Pins - Electrical Signals
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Point to Point

9. How bits are in a MAC address?
International Standards Organization
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
48 Bits
Presentation layer.

10. What does the acronym 'OSI' stand for?
Open Source Interconnect
ISDN - Integrated Services Digital Network
Physical layer.
Presentation layer.

11. In an OSI context What is considered 'media'?
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.
Layer 2 - The Data Link layer.
Cables - Pins - Electrical Signals

12. What is the 'medium access controller'?
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.
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

13. What does the acronym 'ATM' stand for?
Provide a model to discribe how data moves from source device to destination device.
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
Asynchronous Transfer Mode
Application layer.

14. 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
Data Link layer.
Local Area Network
ISDN - Integrated Services Digital Network

15. How does the third OSI model layer relate to administering routers?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Local Area Network
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
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

16. How many Layers in the OSI Model?
Wide Area Network
Seven
Layer 1 Protocol having to do with serial communication
International Standards Organization

17. What is layer 6 of the OSI model?
Session layer.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Open Source Interconnect
Presentation layer.

18. What are considered the Data Flow layers?
Physical - Data Link. Network - Transport
Data Link layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Network layer.

19. What does the acronym default 'HDLC' protocol stand for?
High Level Data Link Control
Point-to-Point Protocol over ATM
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
Provide a model to discribe how data moves from source device to destination device.

20. 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
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Network layer.
MAC SubLayer - LLC SubLayer

21. What is the purpose 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.
High Level Data Link Control
Provide a model to discribe how data moves from source device to destination device.

22. What are the advantages of the OSI model?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Physical layer.
International Standards Organization
Physical Layer

23. What is layer 7 of the OSI model?
48 Bits
Data Link layer.
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

24. 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
Transport layer.
Presentation layer.
MAC SubLayer - LLC SubLayer

25. What is the EIA/TIA 232 protocol concerned with?
Layer 1 Protocol having to do with serial communication
Asynchronous Transfer Mode
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

26. What is the difference between the TCP and UDP protocols?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Theoretical
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Data Link layer.

27. What does the acronym 'MAC' stand for?
Physical Layer
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
MAC SubLayer - LLC SubLayer

28. What is the OSI model and why is it important in understanding networking?
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
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
Local Area Network

29. What is layer 2 of the OSI model?
Data Link layer.
International Standards Organization
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

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

31. 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
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.
MAC SubLayer - LLC SubLayer

32. What does the acronym 'WAN' stand for?
Hardware address - Ethernet address - BIA - Burned in Address
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Wide Area Network
Application layer.

33. OSI layers are...
Theoretical
Physical Layer
Hardware address - Ethernet address - BIA - Burned in Address
Logicial Link Control

34. What is HDLC?
Open Source Interconnect
48 bit address used to identify networking cards and appliances
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.
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

35. What is layer 3 of the OSI model?
Application layer.
Theoretical
Network 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

36. What is layer 5 of the OSI model?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Session layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Layer 2 - The Data Link layer.

37. What is the 'LLC Layer' responsible for?
Point to Point
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
48 bit address used to identify networking cards and appliances

38. Where does troublingshooting alway start?
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.
Transport layer.

39. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
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)
Data Flow layers.
ISDN - Integrated Services Digital Network

40. What is layer 4 of the OSI model?
High Level Data Link Control
When require to communicate between different vendors across the same serial link.
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.

41. What does the acronym 'PPPoA' stand for?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
MAC SubLayer - LLC SubLayer
Point-to-Point Protocol over ATM
High Level Data Link Control

42. What are other names for MAC address?
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Data Flow layers.
Hardware address - Ethernet address - BIA - Burned in Address
Cables - Pins - Electrical Signals

43. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
Data Flow layers.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Transport layer.
Layer 1 Protocol having to do with serial communication

44. What is the Physical Layer responsible for?

45. What does the acronym 'ISDN' stand for?
Hardware address - Ethernet address - BIA - Burned in Address
Media Access Control
ISDN - Integrated Services Digital Network
Logicial Link Control

46. Which OSI model layer is concerned with MAC addresses?
Point-to-Point Protocol over ATM
Physical layer.
Layer 2 - The Data Link layer.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

47. 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.
IEA RS232 - V.35. Cat 5 - RJ45
MAC SubLayer - LLC SubLayer
Local Area Network

48. What does the acronym 'ISO' stand for?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Physical - Data Link. Network - Transport
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
International Standards Organization

49. What are are the 'Sub Layers' of the 'Data Link' Layer?
MAC SubLayer - LLC SubLayer
48 Bits
When require to communicate between different vendors across the same serial link.
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. When would the PPP be used?
When require to communicate between different vendors across the same serial link.
Seven
Media Access Control
Physical Layer