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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 layer 4 of the OSI model?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Open Source Interconnect
Transport layer.
MAC SubLayer - LLC SubLayer

2. What are other names for MAC address?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Local Area Network
Hardware address - Ethernet address - BIA - Burned in Address
Physical layer.

3. What does the acronym 'HDLC' stand for?
MAC SubLayer - LLC SubLayer
High-Level Data Link Control
Data Flow layers.
Hardware address - Ethernet address - BIA - Burned in Address

4. What is the 'medium access controller'?
Cables - Pins - Electrical Signals
The hardware that implements the MAC.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Wide Area Network

5. How bits are in a MAC address?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Hardware address - Ethernet address - BIA - Burned in Address
Physical Layer
48 Bits

6. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
Data Link layer.
Physical Layer
Layer 2 - The Data Link layer.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

7. What does the acronym default 'HDLC' protocol stand for?
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
High Level Data Link Control
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Physical layer.

8. What is the EIA/TIA 232 protocol concerned with?
Layer 1 Protocol having to do with serial communication
Seven
Session layer.
Presentation layer.

9. What are the first 4 layers of the OSI model called?
Local Area Network
48 bit address used to identify networking cards and appliances
Data Flow layers.
High-Level Data Link Control

10. What is the 'LLC Layer' responsible for?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
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
Application layer.
When require to communicate between different vendors across the same serial link.

11. What are considered the Data Flow layers?
Transport layer.
Physical - Data Link. Network - Transport
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Logicial Link Control

12. What does the acronym 'LLC' stand for?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Asynchronous Transfer Mode
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

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

14. How does the third OSI model layer relate to administering routers?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
The hardware that implements the MAC.
Data Flow layers.

15. What is layer 7 of the OSI model?
When require to communicate between different vendors across the same serial link.
Application layer.
The hardware that implements the MAC.
Media Access Control

16. What is layer 2 of the OSI model?
Data Link layer.
Physical layer.
IEA RS232 - V.35. Cat 5 - RJ45
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

17. What does the acronym 'WAN' 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.
Network layer.
Wide Area Network
Logicial Link Control

18. OSI layers are...
Physical layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Theoretical
Transport layer.

19. How many Layers in the OSI Model?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
High-Level Data Link Control
Seven
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.

20. What is the OSI model and why is it important in understanding networking?
Asynchronous Transfer Mode
Application layer.
Cables - Pins - Electrical Signals
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

21. What is the Physical Layer responsible for?

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22. In an OSI context What is considered 'media'?
ISDN - Integrated Services Digital Network
High-Level Data Link Control
Cables - Pins - Electrical Signals
Point to Point

23. What does the acronym 'LAN' stand for?
IEA RS232 - V.35. Cat 5 - RJ45
Wide Area Network
Open Source Interconnect
Local Area Network

24. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
High-Level Data Link Control
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
High Level Data Link Control

25. What does the acronym 'ISDN' stand for?
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.
Physical - Data Link. Network - Transport
Logicial Link Control

26. What is the MAC address?
Physical layer.
48 bit address used to identify networking cards and appliances
Session layer.
Physical - Data Link. Network - Transport

27. What is the purpose of the OSI Model?
Provide a model to discribe how data moves from source device to destination device.
Data Flow layers.
Hardware address - Ethernet address - BIA - Burned in Address
Seven

28. What is the difference between the TCP and UDP protocols?
Provide a model to discribe how data moves from source device to destination device.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Local Area Network
Point-to-Point Protocol over ATM

29. What are some Physical Layer Protocols and Standards?
IEA RS232 - V.35. Cat 5 - RJ45
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
Point-to-Point Protocol over ATM
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

30. Frame Relay
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)
Physical layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

31. What does the acronym 'ISO' stand for?
Media Access Control
International Standards Organization
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

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

33. What does the acronym 'PPP' stand for?
Session layer.
Point to Point
Application layer.
Presentation layer.

34. What is the 'MAC Layer' responsible for?
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
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
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.
Point-to-Point Protocol over ATM

35. What is layer 3 of the OSI model?
Logicial Link Control
Network layer.
Cables - Pins - Electrical Signals
Local Area Network

36. What is layer 5 of the OSI model?
IEA RS232 - V.35. Cat 5 - RJ45
Logicial 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
Session layer.

37. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
Physical layer.
Physical - Data Link. Network - Transport
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
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

38. What does the acronym 'PPPoA' stand for?
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
Seven
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Point-to-Point Protocol over ATM

39. What protocols correspond to the Presentation and Session layers?
Point to Point
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
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
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

40. What is HDLC?
IEA RS232 - V.35. Cat 5 - RJ45
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - 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
Physical Layer

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

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

43. What is layer 1 of the OSI model?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Physical layer.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

44. 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.
Network layer.
Wide Area Network
Layer 1 Protocol having to do with serial communication

45. Which OSI model layer is concerned with MAC addresses?
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
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.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Layer 2 - The Data Link layer.

46. What is layer 6 of the OSI model?
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
Presentation 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
Point to Point

47. What are are the 'Sub Layers' of the 'Data Link' Layer?
Layer 2 - The Data Link layer.
MAC SubLayer - LLC SubLayer
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Session layer.

48. Where does troublingshooting alway start?
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.
Physical Layer
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

49. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Layer 2 - The Data Link layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
48 Bits
Seven

50. What are the advantages of the OSI model?
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Open Source Interconnect
MAC SubLayer - LLC SubLayer
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology