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Cisco Prep

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. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Hub
Transport
The Data Link layer is responsible for the framing of data packets.
Segments - packets - frames - bits

2. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Hub and repeater
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub

3. This device can never run full duplex.
Source and destination MAC address and FCS field
Decrease the window size.
Hub
It divides the network communication process into smaller and simpler components - thus aiding component development - design - and troubleshooting. It encourages industry standardization by defining what functions occur at each layer of the model.

4. A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?
Decrease the window size.
Segments - packets - frames - bits
Layer 4
To provide a means for the receiver to govern the amount of data sent by the sender.

5. What is the bit length and expression form of a MAC address?
Router
3 - 2 - 1 - none
48 bits (6 bytes)
Data Link (LLC sublayer)

6. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
CA:F5:83:EB
Fiber-opticcable
The Data Link layer frames packets received from the Network layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

7. Convert 192.168.10.15 to binary format.
The Network layer provides routing through an internetwork and logical addressing.
The Data Link layer frames packets received from the Network layer.
00001010.00001011.00001100.01100011
11000000.10101000.00001010.00001111

8. This device can measure the distance to a remote network.
Decrease the window size.
Router
To create more collision domains and to add more bandwidth for users.
Switch to switch - host to host - switch to host

9. What type of RJ45 UTP cable is used between switches?
Data Link & Physical
48 bits (6 bytes)
RJ45 UTP crossover cable.
Data Link

10. This layer supports flow control and sequencing.
Transport
Network
00001010.00001011.00001100.01100011
Fiber-opticcable

11. Which layer is represented by segments?
Router
84:D2:43:B3
CA:F5:83:EB
The Transport layer segments user data.

12. Name four router functions.
The Session layer creates sessions between different hosts' applications.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link (LLC sublayer)

13. Ethernet is defined at these layers.
Hub
Data Link & Physical
RJ45 UTP rolled cable.
It divides the network communication process into smaller and simpler components - thus aiding component development - design - and troubleshooting. It encourages industry standardization by defining what functions occur at each layer of the model.

14. Which layer ensures the trustworthy transmission of data across a physical link and is primarily concerned with physical addressing - line discipline - network topology - error notification - ordered delivery of frames - and flow control?
The Physical layer takes frames from the Data Link layer and encodes the 1s and 0s into a digital signal for transmission on the network medium.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Bridge or switch
Transport

15. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Transport
11000000.10101000.00001010.00001111
Layer 4
Transport

16. What is the purpose of flow control?
The Transport layer segments user data.
204.51.170.85
To provide a means for the receiver to govern the amount of data sent by the sender.
Router

17. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Source and destination MAC address and FCS field
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub
CA:F5:83:EB

18. Logical addressing is used at this layer.
Bridge or switch
198.211.57.209
Network
Data Link (LLC sublayer)

19. This device uses hardware addresses to filter a network.
Bridge or switch
D8:1B:3D:76
To create more collision domains and to add more bandwidth for users.
Data Link

20. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Physical layer is responsible for the electrical and mechanical connections between devices.
It divides the network communication process into smaller and simpler components - thus aiding component development - design - and troubleshooting. It encourages industry standardization by defining what functions occur at each layer of the model.
Hub
Switch or bridge

21. Segmentation of a data stream happens at which layer of the OSI model?
To provide a means for the receiver to govern the amount of data sent by the sender.
204.51.170.85
Network
Transport

22. Which two fields are contained within an IEEE Ethernet frame header?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Source and destination MAC address and FCS field
Segments - packets - frames - bits
The Transport layer segments user data.

23. What are two purposes for segmentation with a bridge?
The Network layer provides routing through an internetwork and logical addressing.
To create more collision domains and to add more bandwidth for users.
Transport
It divides the network communication process into smaller and simpler components - thus aiding component development - design - and troubleshooting. It encourages industry standardization by defining what functions occur at each layer of the model.

24. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
The Network layer provides logical addressing - typically IP addressing and routing.
The Presentation layer makes sure that data is in a readable format for the Application layer.
11000000.10101000.00001010.00001111

25. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
Data Link (LLC sublayer)
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Router

26. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Data - segment - packet - frame - bit
The Physical layer takes frames from the Data Link layer and encodes the 1s and 0s into a digital signal for transmission on the network medium.
RJ45 UTP crossover cable.
183/B7

27. Why does the data communication industry use the layered OSI reference model? (Name two)
Hub
It divides the network communication process into smaller and simpler components - thus aiding component development - design - and troubleshooting. It encourages industry standardization by defining what functions occur at each layer of the model.
To create more collision domains and to add more bandwidth for users.
198.211.57.209

28. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
The Transport layer segments user data.
Switch to switch - host to host - switch to host
The Session layer creates sessions between different hosts' applications.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

29. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
183/B7
Hub and repeater
The Network layer provides routing through an internetwork and logical addressing.
D8:1B:3D:76

30. Which layer chooses and determines the availability of communicating partners along with the resources necessary to make the connection - coordinates partnering applications - and forms a consensus on procedures for controlling data integrity and err
Bridge or switch
The Application layer is responsible for finding the network resources broadcast from a server and adding flow control and error control (if the application developer chooses).
The Data Link layer frames packets received from the Network layer.
Data Link & Physical

31. Which layer provides logical addressing that routers will use for path determination?
CA:F5:83:EB
The Network layer provides logical addressing - typically IP addressing and routing.
RJ45 UTP crossover cable.
RJ45 UTP rolled cable.

32. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
It divides the network communication process into smaller and simpler components - thus aiding component development - design - and troubleshooting. It encourages industry standardization by defining what functions occur at each layer of the model.
The Application layer is responsible for finding the network resources broadcast from a server and adding flow control and error control (if the application developer chooses).
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub and repeater

33. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Session layer creates sessions between different hosts' applications.
Switch or bridge
Packet switching - Packet filtering - Internetwork communication - Path selection
204.51.170.85

34. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
The Presentation layer makes sure that data is in a readable format for the Application layer.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
10101100.00010000.00010100.00110111

35. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Data Link (LLC sublayer)
132.210.184.166
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Switch to switch - host to host - switch to host

36. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Switch or bridge
RJ45 UTP rolled cable.
Transport
Router

37. Name three types of connections that can use full duplex.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Network
Data - segment - packet - frame - bit
Switch to switch - host to host - switch to host

38. Which of the following are 3 common types of flow control?
10101100.00010000.00010100.00110111
Buffering - windowing - congestion avoidance
Switch to switch - host to host - switch to host
CA:F5:83:EB

39. This device breaks up collision domains and broadcast domains.
Router
183/B7
Data Link (LLC sublayer)
Packet switching - Packet filtering - Internetwork communication - Path selection

40. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
RJ45 UTP crossover cable.
84:D2:43:B3
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

41. Which layer is represented by packets?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Physical layer takes frames from the Data Link layer and encodes the 1s and 0s into a digital signal for transmission on the network medium.
The Network layer creates packets out of segments handed down from the Transport layer.
Router

42. Convert 172.16.20.55 to binary format.
The Data Link layer frames packets received from the Network layer.
Switch or bridge
10101100.00010000.00010100.00110111
Hub

43. At which layer is routing implemented - enabling connections and path selection between two end systems?
Fiber-opticcable
Network
The Network layer provides routing through an internetwork and logical addressing.
Buffering - windowing - congestion avoidance

44. Which layer segments and reassembles data into a data stream?
In a CSMA/CD collision domain - stations must wait until the media is not in use before transmitting. After a collision - all stations run a random backoff algorithm. When the backoff delay period has expired - all stations have equal priority to tra
11000000.10101000.00001010.00001111
Transport
204.51.170.85

45. This device creates one big collision domain and one large broadcast domain.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Buffering - windowing - congestion avoidance
Hub
Switch to switch - host to host - switch to host

46. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub
198.211.57.209
3 - 2 - 1 - none

47. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Transport
3 - 2 - 1 - none
204.51.170.85
48 bits (6 bytes)

48. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Network
198.211.57.209
Router
Segments - packets - frames - bits

49. This device creates many smaller collision domains - but the network is still one large broadcast domain.
84:D2:43:B3
Switch or bridge
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub and repeater

50. This device sends and receives information about the Network layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
Router
Data Link & Physical
Hub and repeater