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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 'PPPoA' stand for?
Point-to-Point Protocol over ATM
Theoretical
Layer 2 - The Data Link layer.
ISDN - Integrated Services Digital Network

2. What are the first 4 layers of the OSI model called?
Hardware address - Ethernet address - BIA - Burned in Address
Data Flow layers.
Layer 2 - The Data Link 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

3. What is the Physical Layer responsible for?

4. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Presentation 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
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

5. 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
Seven
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Cables - Pins - Electrical Signals

6. Frame Relay
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 technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Application layer.
International Standards Organization

7. What is the 'medium access controller'?
Wide Area Network
High Level Data Link Control
The hardware that implements the MAC.
Theoretical

8. What is the difference between the TCP and UDP protocols?
Physical layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Layer 2 - The Data Link layer.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

9. In an OSI context What is considered 'media'?
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.
Asynchronous Transfer Mode
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Cables - Pins - Electrical Signals

10. 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
Application 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.
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. What are some Physical Layer Protocols and Standards?
Presentation layer.
Hardware address - Ethernet address - BIA - Burned in Address
Media Access Control
IEA RS232 - V.35. Cat 5 - RJ45

12. How bits are in a MAC address?
48 Bits
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Seven
Media Access Control

13. What does the acronym 'WAN' stand for?
Session layer.
Wide Area Network
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Network layer.

14. What are the advantages of the OSI model?
Physical - Data Link. Network - Transport
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
ISDN - Integrated Services Digital Network
Open Source Interconnect

15. What does the acronym 'PPP' 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.
Physical Layer
Theoretical
Point to Point

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

17. OSI layers are...
Provide a model to discribe how data moves from source device to destination device.
Cables - Pins - Electrical Signals
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Theoretical

18. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Layer 1 Protocol having to do with serial communication
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
ISDN - Integrated Services Digital Network
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.

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

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

21. What is the EIA/TIA 232 protocol concerned with?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
IEA RS232 - V.35. Cat 5 - RJ45
The hardware that implements the MAC.
Layer 1 Protocol having to do with serial communication

22. What does the acronym 'HDLC' stand for?
Seven
Asynchronous Transfer Mode
Layer 2 - The Data Link layer.
High-Level Data Link Control

23. What are considered the Data Flow layers?
Data Link 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
Physical - Data Link. Network - Transport
Open Source Interconnect

24. What is the OSI model and why is it important in understanding networking?
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
Point-to-Point Protocol over ATM
Local Area Network
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

25. What is layer 6 of the OSI model?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Presentation layer.
Physical Layer
When require to communicate between different vendors across the same serial link.

26. What is layer 4 of the OSI model?
Transport layer.
MAC SubLayer - LLC SubLayer
48 Bits
Open Source Interconnect

27. What does the acronym 'LLC' stand for?
Physical layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Point-to-Point Protocol over ATM
Logicial Link Control

28. What does the acronym 'ISO' stand for?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Application layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
International Standards Organization

29. What is layer 5 of the OSI model?
Session 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
Logicial Link Control
48 Bits

30. What is the 'LLC Layer' responsible for?
48 Bits
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
Layer 1 Protocol having to do with serial communication

31. What is the purpose of the OSI Model?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Provide a model to discribe how data moves from source device to destination device.
High-Level Data Link Control
Hardware address - Ethernet address - BIA - Burned in Address

32. What does the acronym 'ATM' stand for?
Cables - Pins - Electrical Signals
Asynchronous Transfer Mode
Layer 1 Protocol having to do with serial communication
MAC SubLayer - LLC SubLayer

33. What does the acronym 'OSI' stand for?
Open Source Interconnect
Wide Area Network
Layer 1 Protocol having to do with serial communication
Hardware address - Ethernet address - BIA - Burned in Address

34. What is layer 2 of the OSI model?
Media Access Control
Wide Area Network
Data Link layer.
The hardware that implements the MAC.

35. What are other names for MAC address?
Transport layer.
48 bit address used to identify networking cards and appliances
Hardware address - Ethernet address - BIA - Burned in Address
Open Source Interconnect

36. What is layer 3 of the OSI model?
Data Link layer.
Point to Point
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Network layer.

37. How does the third OSI model layer relate to administering routers?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Media Access Control
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

38. Where does troublingshooting alway start?
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
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Physical layer.

39. What is layer 7 of the OSI model?
Session 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
Application layer.

40. What does the acronym default 'HDLC' protocol stand for?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
High Level Data Link Control
High-Level Data Link Control
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

41. What does the acronym 'LAN' stand for?
Local Area Network
Media Access Control
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

42. What does the acronym 'ISDN' stand for?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
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.
Theoretical
ISDN - Integrated Services Digital Network

43. What is the MAC address?
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.
48 bit address used to identify networking cards and appliances
Network layer.
Physical Layer

44. What does the acronym 'MAC' stand for?
Asynchronous Transfer Mode
Layer 1 Protocol having to do with serial communication
Physical layer.
Media Access Control

45. 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
Physical layer.
Application layer.
Provide a model to discribe how data moves from source device to destination device.

46. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
Asynchronous Transfer Mode
Presentation layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

47. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
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)
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Cables - Pins - Electrical Signals

48. What is ATM?
Session layer.
Wide Area Network
Local Area 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.

49. What are are the 'Sub Layers' of the 'Data Link' Layer?
MAC SubLayer - LLC SubLayer
Physical Layer
Layer 2 - The Data Link layer.
Seven

50. 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
Application layer.
Physical layer.
ISDN - Integrated Services Digital Network