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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 'LLC' stand for?
High Level Data Link Control
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
Presentation layer.

3. When would the PPP be used?
ISDN - Integrated Services Digital Network
Seven
Physical layer.
When require to communicate between different vendors across the same serial link.

4. 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
Physical Layer
When require to communicate between different vendors across the same serial link.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

5. What are the advantages of the OSI model?
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
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Hardware address - Ethernet address - BIA - Burned in Address
International Standards Organization

6. What is the 'LLC Layer' responsible for?
High Level Data Link Control
When require to communicate between different vendors across the same serial link.
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
Local Area Network

7. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
Open Source Interconnect
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
High Level Data Link Control

8. What does the acronym 'ISO' stand for?
International Standards Organization
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
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.

9. What does the acronym 'OSI' stand for?
Open Source Interconnect
Theoretical
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

10. What does the acronym 'ISDN' stand for?
Theoretical
Point-to-Point Protocol over ATM
ISDN - Integrated Services Digital Network
When require to communicate between different vendors across the same serial link.

11. What does the acronym 'PPPoA' stand for?
International Standards Organization
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Point-to-Point Protocol over ATM
Layer 2 - The Data Link layer.

12. What is the EIA/TIA 232 protocol concerned with?
The hardware that implements the MAC.
MAC SubLayer - LLC SubLayer
Layer 1 Protocol having to do with serial communication
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

13. Where does troublingshooting alway start?
Physical Layer
48 Bits
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
IEA RS232 - V.35. Cat 5 - RJ45

14. How bits are in a MAC address?
Seven
48 Bits
Session layer.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

15. What is the 'medium access controller'?
Provide a model to discribe how data moves from source device to destination device.
The hardware that implements the MAC.
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

16. OSI layers are...
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
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
Theoretical
IEA RS232 - V.35. Cat 5 - RJ45

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

18. What is the OSI model and why is it important in understanding networking?
Transport layer.
Local Area Network
International Standards Organization
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

19. 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
IEA RS232 - V.35. Cat 5 - RJ45
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
The hardware that implements the MAC.

20. What is layer 4 of the OSI model?
Transport layer.
Network layer.
Wide Area Network
When require to communicate between different vendors across the same serial link.

21. What is ATM?
Network 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.
Point-to-Point Protocol over ATM
48 bit address used to identify networking cards and appliances

22. What does the acronym 'WAN' stand for?
MAC SubLayer - LLC SubLayer
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
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
Wide Area Network

23. What are the first 4 layers of the OSI model called?
Transport layer.
Data Flow layers.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
High Level Data Link Control

24. 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
MAC SubLayer - LLC SubLayer
IEA RS232 - V.35. Cat 5 - RJ45
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

25. What does the acronym 'LAN' stand for?
Layer 1 Protocol having to do with serial communication
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Local Area Network
Application layer.

26. What are some Physical Layer Protocols and Standards?
Physical - Data Link. Network - Transport
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Seven
IEA RS232 - V.35. Cat 5 - RJ45

27. What is the MAC address?
48 bit address used to identify networking cards and appliances
Point-to-Point Protocol over ATM
Asynchronous Transfer Mode
Physical - Data Link. Network - Transport

28. What are other names for MAC address?
Session layer.
Hardware address - Ethernet address - BIA - Burned in Address
48 Bits
High-Level Data Link Control

29. What does the acronym 'ATM' stand for?
International Standards Organization
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
When require to communicate between different vendors across the same serial link.
Asynchronous Transfer Mode

30. What is layer 5 of the OSI model?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Data Flow layers.
Session layer.
Application layer.

31. How many Layers in the OSI Model?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
When require to communicate between different vendors across the same serial link.
Seven
Presentation layer.

32. What does the acronym default 'HDLC' protocol stand for?
Local Area 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.
Layer 1 Protocol having to do with serial communication
High Level Data Link Control

33. What are considered the Data Flow layers?
48 bit address used to identify networking cards and appliances
Network layer.
Physical - Data Link. Network - Transport
MAC SubLayer - LLC SubLayer

34. What does the acronym 'MAC' stand for?
International Standards Organization
Hardware address - Ethernet address - BIA - Burned in Address
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Media Access Control

35. What is layer 1 of the OSI model?
High-Level Data Link Control
Hardware address - Ethernet address - BIA - Burned in Address
Logicial Link Control
Physical layer.

36. Frame Relay
Transport layer.
MAC SubLayer - LLC SubLayer
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

37. What is layer 3 of the OSI model?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
International Standards Organization
Network layer.
Presentation layer.

38. Which OSI model layer is concerned with MAC addresses?
Layer 2 - The Data Link layer.
Local Area Network
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
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

39. What is layer 2 of the OSI model?
Data Link layer.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
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'?
Presentation layer.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Logicial Link Control
Cables - Pins - Electrical Signals

41. What is layer 7 of the OSI model?
Layer 2 - The Data Link layer.
Application layer.
48 bit address used to identify networking cards and appliances
48 Bits

42. What are are the 'Sub Layers' of the 'Data Link' Layer?
IEA RS232 - V.35. Cat 5 - RJ45
MAC SubLayer - LLC SubLayer
Data Link layer.
High-Level Data Link Control

43. 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)
48 Bits
Transport layer.
The hardware that implements the MAC.

44. What protocols correspond to the Presentation and Session layers?
MAC SubLayer - LLC SubLayer
IEA RS232 - V.35. Cat 5 - RJ45
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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

45. What is layer 6 of the OSI model?
Cables - Pins - Electrical Signals
Point-to-Point Protocol over ATM
Seven
Presentation layer.

46. 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)
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
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
The hardware that implements the MAC.

47. What is the difference between the TCP and UDP protocols?
Point-to-Point Protocol over ATM
Layer 1 Protocol having to do with serial communication
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Cables - Pins - Electrical Signals

48. What is the Physical Layer responsible for?

49. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Data Flow layers.
Session layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - 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.

50. What does the acronym 'HDLC' stand for?
Cables - Pins - Electrical Signals
High-Level Data Link Control
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead