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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?
Hardware address - Ethernet address - BIA - Burned in Address
Layer 2 - The Data Link layer.
Physical - Data Link. Network - Transport
Transport layer.

2. What is HDLC?
ISDN - Integrated Services Digital Network
Cables - Pins - Electrical Signals
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

3. What is the Mnemonic phrase for remembering OSI layers ordered 1 to 7?
Media Access Control
Presentation layer.
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.

4. What does the acronym 'ISDN' stand for?
ISDN - Integrated Services Digital Network
Local Area Network
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
IEA RS232 - V.35. Cat 5 - RJ45

5. What does the acronym 'PPPoA' stand for?
Moving 'Bits' from 'Source' device to 'Destination' device across 'Media'.
Point to Point
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 Protocol over ATM

6. What are the advantages of the OSI model?
Application layer.
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.
Point to Point

7. What are some Physical Layer Protocols and Standards?
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
IEA RS232 - V.35. Cat 5 - RJ45
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology

8. What is layer 4 of 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
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Physical - Data Link. Network - Transport
Transport layer.

9. What is layer 2 of the OSI model?
Data Link layer.
Wide Area Network
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
Theoretical

10. Frame Relay
Media Access Control
Data Link layer.
48 Bits
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

11. What is layer 6 of the OSI model?
Layer 1 Protocol having to do with serial communication
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.
Presentation layer.

12. What is the 'MAC Layer' responsible for?
Asynchronous Transfer Mode
The hardware that implements the MAC.
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

13. How many Layers in the OSI Model?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Hardware address - Ethernet address - BIA - Burned in Address
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.
Seven

14. What does the acronym 'WAN' stand for?
Wide Area Network
Logicial 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
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

15. When would the PPP be used?
When require to communicate between different vendors across the same serial link.
High-Level Data Link Control
Asynchronous Transfer Mode
Physical Layer

16. What does the acronym 'LLC' stand for?
Logicial Link Control
Physical Layer
International Standards Organization
48 Bits

17. 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.
Seven
48 bit address used to identify networking cards and appliances

18. 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
Asynchronous Transfer Mode
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
Data Link layer.

19. What does the acronym 'HDLC' stand for?
Please Do Not Throw Sausage Pizza Away (Physical - Data Link - Network - Transport - Session - Presentation - Application)
High-Level Data Link Control
Physical Layer
Point-to-Point Protocol over ATM

20. Where does troublingshooting alway start?
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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.
Physical Layer

21. What are are the 'Sub Layers' of the 'Data Link' Layer?
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
Transport layer.
MAC SubLayer - LLC SubLayer
Provide a model to discribe how data moves from source device to destination device.

22. What does the acronym 'OSI' stand for?
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.
Transport layer.
MAC SubLayer - LLC SubLayer
Open Source Interconnect

23. What is layer 1 of the OSI model?
48 bit address used to identify networking cards and appliances
Open Source Interconnect
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
Physical layer.

24. What are some examples of 'WAN' side 'Encapsulation' type Datalink Layer Protocols and Standards?
Point-to-Point Protocol over ATM
HDLC - High Level Data Link Control - PPP - Point to Point - Frame Relay - ISDN - ATM
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead

25. What are some examples of 'LAN' side Datalink Layer Protocols and Standards?
Cables - Pins - Electrical Signals
802.2 - Logical Link Control - 802.3 - Ethernet - 802.5 - Token Ring - 802.11 - Wireless
When require to communicate between different vendors across the same serial link.
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology

26. What are considered the Data Flow layers?
IEA RS232 - V.35. Cat 5 - RJ45
Provides a standard for hardware development - Allows modular SW development - Facilitates rapid development of new technology
Physical - Data Link. Network - Transport
Layer 1 Protocol having to do with serial communication

27. What does the acronym 'ISO' stand for?
High Level Data Link Control
Physical layer.
Point-to-Point Protocol over ATM
International Standards Organization

28. What does the acronym 'ATM' stand for?
Asynchronous Transfer Mode
Transport 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
Presentation layer.

29. What does the acronym default 'HDLC' protocol stand for?
When require to communicate between different vendors across the same serial link.
High Level Data Link Control
Asynchronous Transfer Mode
Network layer.

30. What is the 'LLC Layer' responsible for?
Asynchronous Transfer Mode
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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

31. What protocols correspond to the Presentation and Session layers?
Wide Area Network
Wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology
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
Application layer.

32. OSI layers are...
Physical layer.
48 Bits
Theoretical
Local Area Network

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

34. What is layer 5 of the OSI model?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Data Flow layers.
Session layer.
Application layer.

35. What does the acronym 'PPP' stand for?
Point to Point
Seven
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
Physical - Data Link. Network - Transport

36. What are the first 4 layers of the OSI model called?
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
Theoretical
Data Flow layers.
Application layer.

37. What is the Physical Layer responsible for?

38. What is the difference between the TCP and UDP protocols?
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination
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

39. In an OSI context What is considered 'media'?
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
Asynchronous Transfer Mode
High Level Data Link Control

40. What is the EIA/TIA 232 protocol concerned with?
Layer 1 Protocol having to do with serial communication
Data Flow layers.
Theoretical
MAC SubLayer - LLC SubLayer

41. What are other names for MAC address?
Point to Point
Theoretical
Hardware address - Ethernet address - BIA - Burned in Address
The hardware that implements the MAC.

42. What is the purpose of the OSI Model?
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
IEA RS232 - V.35. Cat 5 - RJ45
Provide a model to discribe how data moves from source device to destination device.

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

44. What is the MAC address?
Session layer.
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: 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
48 bit address used to identify networking cards and appliances

45. What does the acronym 'LAN' stand for?
International Standards Organization
Local Area Network
Cables - Pins - Electrical Signals
Presentation layer.

46. What does the acronym 'MAC' stand for?
48 Bits
Media Access Control
High Level Data Link Control
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.

47. What is layer 3 of the OSI model?
Asynchronous Transfer Mode
TCP: Connection oriented - High reliability - High overhead - UDP: Conectionless - Low reliability - Low overhead
Network 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

48. How does the third OSI model layer relate to administering routers?
Layer 2 - The Data Link layer.
IEA RS232 - V.35. Cat 5 - RJ45
Provide a model to discribe how data moves from source device to destination device.
The third layer is the networking layer which is responsible for routing packets across the network to ther=ir destination

49. What is the 'medium access controller'?
Application layer.
Theoretical
The hardware that implements the MAC.
Data Flow layers.

50. What is layer 7 of the OSI model?
ISDN - Integrated Services Digital Network
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.
Layer 1 Protocol having to do with serial communication