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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 does the acronym 'PPP' stand for?
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
Point to Point
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.

2. Frame Relay
Session layer.
Seven
When require to communicate between different vendors across the same serial link.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

3. Which OSI model layer is concerned with MAC addresses?
Wide Area Network
Data Flow layers.
Layer 2 - The Data Link layer.
MAC SubLayer - LLC SubLayer

4. What is the 'LLC Layer' responsible for?
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
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.

5. How bits are in a MAC address?
The hardware that implements the MAC.
Session layer.
48 Bits
High Level Data Link Control

6. What does the acronym 'ISO' stand for?
Layer 2 - The Data Link layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Presentation layer.
International Standards Organization

7. What does the acronym 'WAN' stand for?
Transport layer.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Data Link layer.
Wide Area Network

8. What is layer 4 of the OSI model?
Transport layer.
International Standards Organization
Hardware address - Ethernet address - BIA - Burned in Address
High-Level Data Link Control

9. What is layer 5 of the OSI model?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
When require to communicate between different vendors across the same serial link.
Session layer.
Data Link layer.

10. 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
Provide a model to discribe how data moves from source device to destination device.
IEA RS232 - V.35. Cat 5 - RJ45
Session layer.

11. What is layer 3 of the OSI model?
Network layer.
Point to Point
MAC SubLayer - LLC SubLayer
Cables - Pins - Electrical Signals

12. What are other names for MAC address?
Physical - Data Link. Network - Transport
Physical Layer
Hardware address - Ethernet address - BIA - Burned in Address
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

13. What does the acronym 'PPPoA' stand 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
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Point-to-Point Protocol over ATM
Physical Layer

14. What are some Physical Layer Protocols and Standards?
Provide a model to discribe how data moves from source device to destination device.
Cables - Pins - Electrical Signals
IEA RS232 - V.35. Cat 5 - RJ45
Transport layer.

15. OSI layers are...
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
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
Media Access Control

16. What does the acronym 'MAC' stand for?
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
Media Access Control
International Standards Organization

17. What is the 'MAC Layer' responsible for?
Application layer.
48 bit address used to identify networking cards and appliances
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

18. What is the purpose of the OSI Model?
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.
48 Bits
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

19. What is layer 6 of the OSI model?
Presentation layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Application layer.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

20. What is the EIA/TIA 232 protocol concerned with?
Physical 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
Layer 1 Protocol having to do with serial communication
Open Source Interconnect

21. What are considered the Data Flow layers?
Physical - Data Link. Network - Transport
Application layer.
48 bit address used to identify networking cards and appliances
Media Access Control

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

23. 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
Application layer.
Logicial Link Control
Layer 2 - The Data Link layer.

24. What is the MAC address?
48 bit address used to identify networking cards and appliances
Theoretical
MAC SubLayer - LLC SubLayer
Cables - Pins - Electrical Signals

25. How many Layers in the OSI Model?
Open Source Interconnect
High Level Data Link Control
Cables - Pins - Electrical Signals
Seven

26. What are the first 4 layers of the OSI model called?
Physical Layer
Data Flow layers.
The hardware that implements the MAC.
Presentation layer.

27. What does the acronym default 'HDLC' protocol stand for?
High Level Data Link Control
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
Wide Area Network

28. What is layer 7 of the OSI model?
High Level Data Link Control
Layer 2 - The Data Link layer.
Application layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

29. What is ATM?
Media Access Control
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Presentation 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.

30. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Point-to-Point Protocol over ATM
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
International Standards Organization
High-Level Data Link Control

31. What is the difference between the TCP and UDP protocols?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Cables - Pins - Electrical Signals
Hardware address - Ethernet address - BIA - Burned in Address
High Level Data Link Control

32. What does the acronym 'HDLC' stand for?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
High-Level Data Link Control
Wide Area Network
The hardware that implements the MAC.

33. What are are the 'Sub Layers' of the 'Data Link' Layer?
MAC SubLayer - LLC SubLayer
Session layer.
IEA RS232 - V.35. Cat 5 - RJ45
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

34. What is layer 2 of the OSI model?
48 bit address used to identify networking cards and appliances
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Presentation layer.
Data Link layer.

35. What is layer 1 of the OSI model?
MAC SubLayer - LLC SubLayer
International Standards Organization
Physical - Data Link. Network - Transport
Physical layer.

36. What does the acronym 'ISDN' stand for?
ISDN - Integrated Services Digital Network
Open Source Interconnect
Presentation layer.
High Level Data Link Control

37. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
High Level Data Link Control
The hardware that implements the MAC.
Seven
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

38. 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)
The hardware that implements the MAC.
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

39. What is the 'medium access controller'?
Media Access Control
Layer 2 - The Data Link layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
The hardware that implements the MAC.

40. In an OSI context What is considered '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.
Wide Area Network
Cables - Pins - Electrical Signals
The hardware that implements the MAC.

41. When would the PPP be used?
The hardware that implements the MAC.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
When require to communicate between different vendors across the same serial link.
IEA RS232 - V.35. Cat 5 - RJ45

42. What does the acronym 'LLC' stand for?
High-Level Data Link Control
Logicial Link Control
When require to communicate between different vendors across the same serial link.
International Standards Organization

43. What protocols correspond to the Presentation and Session layers?
Point-to-Point Protocol over ATM
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
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

44. What does the acronym 'LAN' stand for?
Local Area Network
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Wide Area Network
High-Level Data Link Control

45. What is the Physical Layer responsible for?

46. Where does troublingshooting alway start?
Transport layer.
Physical Layer
Point-to-Point Protocol over ATM
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

47. What does the acronym 'ATM' stand for?
Wide Area Network
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Data Flow layers.
Asynchronous Transfer Mode

48. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
International Standards Organization
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)
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

49. What are the advantages of the OSI model?
Layer 2 - The Data Link layer.
Transport layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Hardware address - Ethernet address - BIA - Burned in Address

50. What is the OSI model and why is it important in understanding networking?
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
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