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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 'ISDN' 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
ISDN - Integrated Services Digital 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.
Application layer.

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

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3. What is layer 4 of the OSI model?
Transport 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
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

4. OSI layers are...
Theoretical
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.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
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.

5. What is the OSI model and why is it important in understanding networking?
High Level Data Link Control
Point-to-Point Protocol over 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
48 Bits

6. What are considered the Data Flow layers?
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Physical - Data Link. Network - Transport
High-Level Data Link Control
Media Access Control

7. What is layer 5 of the OSI model?
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Session layer.
High Level Data Link Control
High-Level Data Link Control

8. What is the MAC address?
Physical layer.
48 bit address used to identify networking cards and appliances
Wide Area Network
Application layer.

9. Which OSI model layer is concerned with MAC addresses?
Open Source Interconnect
Layer 2 - The Data Link layer.
Session layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM

10. Frame Relay
ISDN - Integrated Services Digital Network
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
Hardware address - Ethernet address - BIA - Burned in Address

11. What is the difference between the TCP and UDP protocols?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Transport layer.
Logicial Link Control
Presentation layer.

12. What does the acronym 'ATM' stand for?
Asynchronous Transfer Mode
Open Source Interconnect
Logicial Link Control
Seven

13. What is layer 1 of the OSI model?
Physical layer.
Asynchronous Transfer Mode
Data Link layer.
Hardware address - Ethernet address - BIA - Burned in Address

14. How bits are in a MAC address?
Open Source Interconnect
Session layer.
48 Bits
The hardware that implements the MAC.

15. What does the acronym 'WAN' stand for?
Open Source Interconnect
Seven
Wide Area Network
Point-to-Point Protocol over ATM

16. What are the first 4 layers of the OSI model called?
Data Flow layers.
Physical - Data Link. Network - Transport
Application 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

17. What does the acronym default 'HDLC' protocol 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
Cables - Pins - Electrical Signals
High Level Data Link Control
International Standards Organization

18. What is ATM?
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.
Session layer.
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

19. In an OSI context What is considered 'media'?
Application layer.
IEA RS232 - V.35. Cat 5 - RJ45
Cables - Pins - Electrical Signals
Hardware address - Ethernet address - BIA - Burned in Address

20. What is the purpose of the OSI Model?
Provide a model to discribe how data moves from source device to destination device.
Media Access Control
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Presentation layer.

21. What does the acronym 'LAN' stand for?
Media Access Control
Open Source Interconnect
Local Area Network
Presentation layer.

22. What is HDLC?
Physical Layer
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
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

23. What is the EIA/TIA 232 protocol concerned with?
Data Flow layers.
Layer 1 Protocol having to do with serial communication
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.
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

24. 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
Session layer.
Physical Layer
Presentation layer.

25. How does the third OSI model layer relate to administering routers?
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
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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

26. What is the Mnemonic phrase for remembering OSI layers ordered 7 to 1?
Hardware address - Ethernet address - BIA - Burned in Address
Presentation layer.
Open Source Interconnect
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)

27. What does the acronym 'LLC' stand for?
Logicial Link Control
Open Source Interconnect
ISDN - Integrated Services Digital Network
Asynchronous Transfer Mode

28. What is the 'LLC Layer' responsible for?
The hardware that implements the MAC.
IEA RS232 - V.35. Cat 5 - RJ45
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
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

29. What protocols correspond to the Presentation and Session layers?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
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
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.
Physical - Data Link. Network - Transport

30. What is layer 7 of the OSI model?
Application layer.
IEA RS232 - V.35. Cat 5 - RJ45
Physical layer.
Session layer.

31. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Theoretical
Transport layer.
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
ISDN - Integrated Services Digital Network

32. What is layer 6 of the OSI model?
Network layer.
Hardware address - Ethernet address - BIA - Burned in Address
Presentation layer.
Cables - Pins - Electrical Signals

33. What are the advantages of the OSI model?
Logicial Link Control
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
Media Access Control

34. What are some Physical Layer Protocols and Standards?
Cables - Pins - Electrical Signals
ISDN - Integrated Services Digital Network
Point to Point
IEA RS232 - V.35. Cat 5 - RJ45

35. What does the acronym 'PPPoA' stand for?
ISDN - Integrated Services Digital Network
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Point-to-Point Protocol over ATM
IEA RS232 - V.35. Cat 5 - RJ45

36. What is layer 3 of the OSI model?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Data Flow layers.
Theoretical
Network layer.

37. 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)
Data Link layer.
Physical layer.
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

38. What does the acronym 'PPP' stand for?
Seven
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 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

39. What is the Physical Layer responsible for?

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40. Where does troublingshooting alway start?
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
Transport layer.
Physical Layer

41. What does the acronym 'HDLC' stand for?
Theoretical
Local Area Network
High-Level Data Link Control
IEA RS232 - V.35. Cat 5 - RJ45

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

43. How many Layers in the OSI Model?
48 Bits
Physical - Data Link. Network - Transport
Seven
The hardware that implements the MAC.

44. What does the acronym 'OSI' stand for?
Physical - Data Link. Network - Transport
High Level Data Link Control
High-Level Data Link Control
Open Source Interconnect

45. What does the acronym 'MAC' stand for?
48 Bits
Network layer.
Media Access Control
Provide a model to discribe how data moves from source device to destination device.

46. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Transport layer.
Physical layer.
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless

47. What is layer 2 of the OSI model?
Logicial Link Control
The hardware that implements the MAC.
Data Link layer.
Layer 1 Protocol having to do with serial communication

48. What is the 'medium access controller'?
The hardware that implements the MAC.
IEA RS232 - V.35. Cat 5 - RJ45
High-Level Data 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

49. What does the acronym 'ISO' stand for?
International Standards Organization
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Open Source Interconnect
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

50. What are other names for MAC address?
Wide Area Network
All People Seem To Need Data Processing (Application - Presentation - Session - Transport - Network - Data Link - Physical)
Hardware address - Ethernet address - BIA - Burned in Address
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)