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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 'LAN' stand for?
When require to communicate between different vendors across the same serial link.
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
Local Area Network

2. What does the acronym 'PPP' stand for?
Asynchronous Transfer Mode
Layer 2 - The Data Link layer.
Application layer.
Point to Point

3. What is the 'MAC Layer' responsible for?
Transport 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
Session layer.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

4. What does the acronym 'PPPoA' stand for?
48 Bits
High-Level Data Link Control
Point-to-Point Protocol over 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.

5. What does the acronym default 'HDLC' protocol stand for?
Application layer.
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
Wide Area Network

6. How bits are in a MAC address?
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
International Standards Organization
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

7. What is the purpose of the OSI Model?
Media Access Control
Transport layer.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Provide a model to discribe how data moves from source device to destination device.

8. What are the advantages of the OSI model?
Provide a model to discribe how data moves from source device to destination device.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
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.
Media Access Control

9. What are some Physical Layer Protocols and Standards?
Open Source Interconnect
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.
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
IEA RS232 - V.35. Cat 5 - RJ45

10. What does the acronym 'OSI' stand for?
Open Source Interconnect
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
Asynchronous Transfer Mode

11. What is the EIA/TIA 232 protocol concerned with?
Point-to-Point Protocol over ATM
Layer 1 Protocol having to do with serial communication
Theoretical
Network layer.

12. What does the acronym 'WAN' stand for?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Wide Area Network
Physical Layer
Network layer.

13. What are considered the Data Flow layers?
Physical - Data Link. Network - Transport
Asynchronous Transfer Mode
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
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

14. What are are the 'Sub Layers' of the 'Data Link' Layer?
MAC SubLayer - LLC SubLayer
International Standards Organization
Point-to-Point Protocol over ATM
Asynchronous Transfer Mode

15. 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
Local Area Network
Asynchronous Transfer Mode
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. 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
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.
Application layer.
Hardware address - Ethernet address - BIA - Burned in Address

17. What does the acronym 'ISDN' stand for?
ISDN - Integrated Services Digital Network
Hardware address - Ethernet address - BIA - Burned in Address
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Data Link layer.

18. How many Layers in the OSI Model?
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
Local Area Network
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

19. What is layer 3 of the OSI model?
Network layer.
48 bit address used to identify networking cards and appliances
Presentation layer.
Physical layer.

20. What does the acronym 'LLC' stand for?
International Standards Organization
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
48 bit address used to identify networking cards and appliances
Logicial Link Control

21. 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.
Point to Point
Application layer.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

22. What is layer 6 of the OSI model?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Data Link layer.
Presentation layer.
Local Area Network

23. 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
Layer 2 - The Data Link layer.
International Standards Organization
Open Source Interconnect

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

25. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
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.
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Media Access Control

26. What is layer 4 of the OSI model?
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
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Transport layer.

27. What are other names for MAC address?
The hardware that implements the MAC.
Wide Area Network
Theoretical
Hardware address - Ethernet address - BIA - Burned in Address

28. What is the 'medium access controller'?
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
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
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
The hardware that implements the MAC.

29. 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
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Point-to-Point Protocol over ATM
Session layer.

30. When would the PPP be used?
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
When require to communicate between different vendors across the same serial link.
Hardware address - Ethernet address - BIA - Burned in Address
Point-to-Point Protocol over ATM

31. What is layer 1 of the OSI model?
Open Source Interconnect
Layer 1 Protocol having to do with serial communication
Physical layer.
48 bit address used to identify networking cards and appliances

32. What is layer 5 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.
48 Bits
Session layer.
Presentation layer.

33. What does the acronym 'HDLC' stand for?
High-Level Data Link Control
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
48 Bits
The hardware that implements the MAC.

34. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
Application layer.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Local Area Network
IEA RS232 - V.35. Cat 5 - RJ45

35. What is the MAC address?
48 bit address used to identify networking cards and appliances
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.
Application layer.
Open Source Interconnect

36. What is layer 7 of the OSI model?
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.
48 bit address used to identify networking cards and appliances
Provide a model to discribe how data moves from source device to destination device.

37. What is HDLC?
Session layer.
IEA RS232 - V.35. Cat 5 - RJ45
ISDN - Integrated Services Digital Network
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

38. What does the acronym 'ATM' stand for?
Layer 1 Protocol having to do with serial communication
IEA RS232 - V.35. Cat 5 - RJ45
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

39. Which OSI model layer is concerned with MAC addresses?
Hardware address - Ethernet address - BIA - Burned in Address
Physical 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
Layer 2 - The Data Link layer.

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

41. What are the first 4 layers of the OSI model called?
Data Flow layers.
Physical layer.
High-Level Data Link Control
MAC SubLayer - LLC SubLayer

42. What is the difference between the TCP and UDP protocols?
Physical 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
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

43. 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
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Application layer.
IEA RS232 - V.35. Cat 5 - RJ45

44. What is layer 2 of the OSI model?
Transport layer.
Data Link layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
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

45. In an OSI context What is considered 'media'?
48 bit address used to identify networking cards and appliances
Cables - Pins - Electrical Signals
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
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

46. What does the acronym 'MAC' 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
Provide a model to discribe how data moves from source device to destination device.
Media Access Control
Physical - Data Link. Network - Transport

47. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
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
Layer 2 - The Data Link layer.

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

49. What is the Physical Layer responsible for?

50. What does the acronym 'ISO' stand for?
Media Access Control
When require to communicate between different vendors across the same serial link.
Transport layer.
International Standards Organization