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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 are considered the Data Flow layers?
Physical - Data Link. Network - Transport
The hardware that implements the MAC.
Session layer.
Theoretical

2. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
When require to communicate between different vendors across the same serial link.
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.
Transport layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

3. What is the EIA/TIA 232 protocol concerned with?
Point to Point
48 Bits
Layer 1 Protocol having to do with serial communication
Open Source Interconnect

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

5. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
Wide Area Network
Data Link layer.
MAC SubLayer - LLC SubLayer
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

6. What is the 'MAC Layer' responsible for?
ISDN - Integrated Services Digital Network
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Physical - Data Link. Network - Transport
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

7. What is the 'medium access controller'?
Presentation layer.
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
Local Area Network

8. What does the acronym default 'HDLC' protocol stand for?
High Level Data Link Control
Data Link layer.
The hardware that implements the MAC.
IEA RS232 - V.35. Cat 5 - RJ45

9. What is layer 7 of the OSI model?
Application layer.
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.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

10. 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
Layer 2 - The Data Link layer.
Theoretical
Point-to-Point Protocol over ATM

11. What is layer 5 of the OSI model?
High-Level Data Link Control
Session layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Physical layer.

12. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
48 bit address used to identify networking cards and appliances
When require to communicate between different vendors across the same serial link.
High Level Data Link Control
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

13. What is the OSI model and why is it important in understanding networking?
48 Bits
Local 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
When require to communicate between different vendors across the same serial link.

14. What are are the 'Sub Layers' of the 'Data Link' Layer?
Physical Layer
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
MAC SubLayer - LLC SubLayer
Physical layer.

15. Which OSI model layer is concerned with MAC addresses?
Logicial Link Control
Layer 2 - The Data Link layer.
Point-to-Point Protocol over ATM
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

16. How many Layers in the OSI Model?
Theoretical
Seven
Physical Layer
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)

17. What is the Physical Layer responsible for?

18. 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
MAC SubLayer - LLC SubLayer
Presentation layer.
Open Source Interconnect

19. What is ATM?
IEA RS232 - V.35. Cat 5 - RJ45
48 bit address used to identify networking cards and appliances
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.

20. What is layer 3 of the OSI model?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Network layer.
Wide Area Network

21. What does the acronym 'WAN' stand for?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Wide Area Network
When require to communicate between different vendors across the same serial link.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

22. What is layer 2 of the OSI model?
Application layer.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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

23. What is layer 6 of the OSI model?
Physical Layer
Presentation layer.
Physical layer.
Data Link layer.

24. What does the acronym 'LLC' stand for?
Physical layer.
Logicial Link Control
When require to communicate between different vendors across the same serial link.
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

25. How bits are in a MAC address?
48 Bits
When require to communicate between different vendors across the same serial link.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
MAC SubLayer - LLC SubLayer

26. What is the MAC address?
Application layer.
Point-to-Point Protocol over ATM
48 bit address used to identify networking cards and appliances
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

27. When would the PPP be used?
When require to communicate between different vendors across the same serial link.
Application layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Asynchronous Transfer Mode

28. 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
Application layer.
Physical - Data Link. Network - Transport
High-Level Data Link Control

29. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
MAC SubLayer - LLC SubLayer
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.
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

30. What is the 'LLC Layer' responsible 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
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)
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

31. What does the acronym 'LAN' stand for?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Local Area Network
Session layer.
Presentation layer.

32. 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
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
High-Level Data Link Control
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

33. What does the acronym 'HDLC' stand for?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Physical - Data Link. Network - Transport
Network layer.
High-Level Data Link Control

34. What does the acronym 'OSI' stand for?
Data Link 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
Open Source Interconnect
Session layer.

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

36. What does the acronym 'MAC' stand 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
When require to communicate between different vendors across the same serial link.
Media Access Control
High-Level Data Link Control

37. What is layer 4 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
Physical - Data Link. Network - Transport
Transport layer.
ISDN - Integrated Services Digital Network

38. OSI layers are...
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
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Hardware address - Ethernet address - BIA - Burned in Address

39. In an OSI context What is considered 'media'?
Point to Point
Logicial Link Control
Provide a model to discribe how data moves from source device to destination device.
Cables - Pins - Electrical Signals

40. What does the acronym 'PPPoA' stand for?
High Level Data Link Control
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
International Standards Organization
Point-to-Point Protocol over ATM

41. What does the acronym 'PPP' stand for?
Physical Layer
Point to Point
Local Area Network
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

42. What does the acronym 'ISO' stand for?
Data Link layer.
IEA RS232 - V.35. Cat 5 - RJ45
48 bit address used to identify networking cards and appliances
International Standards Organization

43. What is the difference between the TCP and UDP protocols?
The hardware that implements the MAC.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
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.
48 bit address used to identify networking cards and appliances

44. What does the acronym 'ATM' stand for?
Asynchronous Transfer Mode
Hardware address - Ethernet address - BIA - Burned in Address
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Data Flow layers.

45. What are other names for 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
Cables - Pins - Electrical Signals
Network layer.

46. Where does troublingshooting alway start?
Logicial Link Control
Wide Area Network
Physical Layer
International Standards Organization

47. What is layer 1 of the OSI model?
Point-to-Point Protocol over ATM
Physical layer.
Application layer.
Physical Layer

48. What are the first 4 layers of the OSI model called?
Data Flow layers.
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Asynchronous Transfer Mode
Point-to-Point Protocol over ATM

49. What is the purpose of the OSI Model?
Data Link layer.
Provide a model to discribe how data moves from source device to destination device.
Layer 2 - The Data Link layer.
Data Flow layers.

50. What does the acronym 'ISDN' stand for?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Asynchronous Transfer Mode
ISDN - Integrated Services Digital Network
When require to communicate between different vendors across the same serial link.