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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 layer 4 of the OSI model?
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
Transport layer.
Physical Layer
Network layer.

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

3. What does the acronym 'HDLC' stand for?
Media Access Control
Data Link layer.
Session layer.
High-Level Data Link Control

4. What are other names for MAC address?
The hardware that implements the MAC.
Seven
Physical - Data Link. Network - Transport
Hardware address - Ethernet address - BIA - Burned in Address

5. What is layer 7 of the OSI model?
Seven
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Physical Layer
Application layer.

6. What are are the 'Sub Layers' of the 'Data Link' Layer?
Seven
Data Link layer.
Asynchronous Transfer Mode
MAC SubLayer - LLC SubLayer

7. What does the acronym 'PPP' stand for?
Layer 2 - The Data Link layer.
Point to Point
Data Flow layers.
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

8. 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)
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.

9. What does the acronym 'ATM' stand for?
Media Access Control
Hardware address - Ethernet address - BIA - Burned in 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.
Asynchronous Transfer Mode

10. What is HDLC?
Data Link 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
High-Level Data Link Control
Wide Area Network

11. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
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
Local Area Network
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
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.

12. What is the MAC address?
Media Access 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
48 bit address used to identify networking cards and appliances
Application layer.

13. What is the 'medium access controller'?
The hardware that implements the MAC.
MAC SubLayer - LLC SubLayer
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
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

14. What is layer 5 of the OSI model?
Session layer.
High Level Data Link Control
The hardware that implements the MAC.
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

15. How many Layers in the OSI Model?
Asynchronous Transfer Mode
Seven
48 bit address used to identify networking cards and appliances
MAC SubLayer - LLC SubLayer

16. OSI layers are...
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
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
Theoretical
Session layer.

17. What is the 'MAC Layer' responsible for?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Seven
IEA RS232 - V.35. Cat 5 - RJ45
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

18. What does the acronym default 'HDLC' protocol stand for?
Seven
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
Point-to-Point Protocol over ATM
High Level Data Link Control

19. What is the OSI model and why is it important in understanding networking?
The hardware that implements the MAC.
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
High-Level Data Link Control

20. What does the acronym 'MAC' stand for?
High Level Data Link Control
Media Access Control
Physical layer.
Session layer.

21. Frame Relay
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
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.

22. Where does troublingshooting alway start?
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
Physical Layer
Provide a model to discribe how data moves from source device to destination device.
Theoretical

23. What is layer 2 of the OSI model?
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.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Logicial Link Control
Data Link layer.

24. What protocols correspond to the Presentation and Session layers?
Data Link layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Theoretical
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

25. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Physical layer.
Point to Point
When require to communicate between different vendors across the same serial link.

26. What is layer 1 of the OSI model?
Provide a model to discribe how data moves from source device to destination device.
Physical layer.
Theoretical
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

27. What are some Physical Layer Protocols and Standards?
IEA RS232 - V.35. Cat 5 - RJ45
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Hardware address - Ethernet address - BIA - Burned in Address
Session layer.

28. What does the acronym 'ISDN' stand for?
Asynchronous Transfer Mode
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
ISDN - Integrated Services Digital Network

29. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
High-Level Data Link Control
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.

30. What does the acronym 'PPPoA' stand for?
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
Application layer.
Network layer.

31. What does the acronym 'WAN' stand for?
48 bit address used to identify networking cards and appliances
When require to communicate between different vendors across the same serial link.
Physical layer.
Wide Area Network

32. How bits are in a MAC address?
48 Bits
Data Flow layers.
Layer 1 Protocol having to do with serial communication
Hardware address - Ethernet address - BIA - Burned in Address

33. How does the third OSI model layer relate to administering routers?
The hardware that implements the MAC.
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
48 bit address used to identify networking cards and appliances

34. What does the acronym 'LLC' stand for?
Logicial Link Control
Layer 2 - The Data Link layer.
Point to Point
Physical layer.

35. What is the 'LLC Layer' responsible for?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
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
Cables - Pins - Electrical Signals

36. What is the EIA/TIA 232 protocol concerned with?
Layer 1 Protocol having to do with serial communication
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
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

37. What are the first 4 layers of the OSI model called?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Data Flow layers.
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

38. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Layer 1 Protocol having to do with serial communication
Cables - Pins - Electrical Signals

39. What is the Physical Layer responsible for?

40. What are the advantages 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
Network layer.
Presentation layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

41. What does the acronym 'ISO' 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
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Physical Layer
International Standards Organization

42. What is the difference between the TCP and UDP protocols?
The hardware that implements the MAC.
High-Level Data Link Control
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Open Source Interconnect

43. When would the PPP be used?
Session layer.
When require to communicate between different vendors across the same serial link.
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.

44. What does the acronym 'OSI' stand for?
Transport layer.
The hardware that implements the MAC.
Open Source Interconnect
Session layer.

45. What is ATM?
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
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.
Layer 2 - The Data Link layer.
48 Bits

46. What is layer 6 of the OSI model?
Layer 1 Protocol having to do with serial communication
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
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

47. What is the purpose of the OSI Model?
Layer 1 Protocol having to do with serial communication
Provide a model to discribe how data moves from source device to destination device.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Data Flow layers.

48. Which OSI model layer is concerned with MAC addresses?
Layer 2 - The Data Link layer.
Session layer.
IEA RS232 - V.35. Cat 5 - RJ45
Layer 1 Protocol having to do with serial communication

49. What is layer 3 of the OSI model?
Cables - Pins - Electrical Signals
Transport layer.
IEA RS232 - V.35. Cat 5 - RJ45
Network layer.

50. In an OSI context What is considered 'media'?
Point-to-Point Protocol over ATM
IEA RS232 - V.35. Cat 5 - RJ45
Open Source Interconnect
Cables - Pins - Electrical Signals