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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. Which OSI model layer is concerned with MAC addresses?
High-Level Data Link Control
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
Layer 2 - The Data Link layer.

2. 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)
Layer 2 - The Data Link layer.
High-Level Data Link Control
Wide Area Network

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

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4. What are some Physical Layer Protocols and Standards?
Hardware address - Ethernet address - BIA - Burned in Address
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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

5. Where does troublingshooting alway start?
International Standards Organization
Hardware address - Ethernet address - BIA - Burned in Address
48 bit address used to identify networking cards and appliances
Physical Layer

6. What is the EIA/TIA 232 protocol concerned with?
Layer 1 Protocol having to do with serial communication
Physical - Data Link. Network - Transport
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
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

7. What does the acronym 'LLC' stand for?
Seven
Logicial Link Control
ISDN - Integrated Services Digital Network
Point-to-Point Protocol over ATM

8. What are other names for MAC address?
Hardware address - Ethernet address - BIA - Burned in Address
Application layer.
Asynchronous Transfer Mode
High Level Data Link Control

9. What is layer 1 of the OSI model?
Data Flow layers.
Application layer.
High-Level Data Link Control
Physical layer.

10. How does the third OSI model layer relate to administering routers?
Asynchronous Transfer Mode
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Physical Layer
Media Access Control

11. What is the purpose of the OSI Model?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Provide a model to discribe how data moves from source device to destination device.
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

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

13. What does the acronym 'PPPoA' stand for?
High-Level Data Link Control
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

14. Frame Relay
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Application layer.
High-Level Data Link Control
Physical layer.

15. What is the 'LLC 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
Point to Point
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Asynchronous Transfer Mode

16. What does the acronym 'WAN' stand for?
IEA RS232 - V.35. Cat 5 - RJ45
Wide Area Network
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
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

17. How bits are in a MAC address?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
MAC SubLayer - LLC SubLayer
48 Bits

18. What does the acronym 'OSI' stand for?
Hardware address - Ethernet address - BIA - Burned in Address
Transport layer.
Open Source Interconnect
48 bit address used to identify networking cards and appliances

19. What are considered the Data Flow layers?
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.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
48 Bits
Physical - Data Link. Network - Transport

20. What does the acronym 'LAN' stand for?
The hardware that implements the MAC.
Local Area Network
Wide Area Network
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 layer 4 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
Transport layer.
Data Link layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

22. What does the acronym 'HDLC' stand for?
Open Source Interconnect
High-Level Data Link Control
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
Local Area Network

23. In an OSI context What is considered 'media'?
Cables - Pins - Electrical Signals
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
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.
The hardware that implements the MAC.

24. What does the acronym 'PPP' stand for?
High-Level Data Link Control
Point to Point
Cables - Pins - Electrical Signals
Application layer.

25. What does the acronym default 'HDLC' protocol stand for?
Data Link 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
High Level Data Link Control
Media Access Control

26. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Media Access Control
IEA RS232 - V.35. Cat 5 - RJ45
MAC SubLayer - LLC SubLayer

27. How many Layers in the OSI Model?
Transport layer.
ISDN - Integrated Services Digital Network
The hardware that implements the MAC.
Seven

28. What does the acronym 'ISO' 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
When require to communicate between different vendors across the same serial link.
International Standards Organization
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

29. What does the acronym 'ISDN' stand for?
ISDN - Integrated Services Digital Network
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Layer 2 - The Data Link layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

30. What is the OSI model and why is it important in understanding networking?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
MAC SubLayer - LLC SubLayer
Physical - Data Link. Network - Transport
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

31. What is layer 7 of the OSI model?
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.
Data Link layer.
Application layer.
High-Level Data Link Control

32. What is the difference between the TCP and UDP protocols?
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
Seven
Application layer.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

33. What is layer 3 of the OSI model?
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.
Logicial Link Control
Network layer.

34. OSI layers are...
Logicial Link Control
48 Bits
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

35. What are the first 4 layers of the OSI model called?
Data Flow layers.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
48 bit address used to identify networking cards and appliances
Physical - Data Link. Network - Transport

36. What is the Physical Layer responsible for?

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37. What protocols correspond to the Presentation and Session layers?
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
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Data Flow layers.

38. What are the advantages of the OSI model?
IEA RS232 - V.35. Cat 5 - RJ45
Media Access Control
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Physical layer.

39. What does the acronym 'MAC' stand for?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Physical layer.
The hardware that implements the MAC.
Media Access Control

40. What is HDLC?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Layer 1 Protocol having to do with serial communication
Point to Point
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

41. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
MAC SubLayer - LLC SubLayer
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
ISDN - Integrated Services Digital Network
48 bit address used to identify networking cards and appliances

42. What is layer 5 of the OSI model?
Session layer.
Theoretical
Provide a model to discribe how data moves from source device to destination device.
ISDN - Integrated Services Digital Network

43. 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.
The hardware that implements the MAC.
Seven
Point-to-Point Protocol over ATM

44. What is the 'medium access controller'?
Network layer.
The hardware that implements the MAC.
Physical - Data Link. Network - Transport
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

45. What is the MAC address?
Cables - Pins - Electrical Signals
48 bit address used to identify networking cards and appliances
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Seven

46. What does the acronym 'ATM' stand for?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Asynchronous Transfer Mode
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
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

47. What is the 'MAC Layer' responsible for?
Physical - Data Link. Network - Transport
Session 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
Media Access Control

48. When would the PPP be used?
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
Seven
IEA RS232 - V.35. Cat 5 - RJ45
When require to communicate between different vendors across the same serial link.

49. What are are the 'Sub Layers' of the 'Data Link' Layer?
MAC SubLayer - LLC SubLayer
Application layer.
Session layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

50. What is layer 2 of the OSI model?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
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.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Data Link layer.