Test your basic knowledge |

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. Which layer is represented by segments?
CA:F5:83:EB
Transport
The Transport layer segments user data.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

2. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Session layer sets up - maintains - and terminates sessions between applications.
D8:1B:3D:76
3 - 2 - 1 - none
The Data Link layer frames packets received from the Network layer.

3. Which layer is represented by packets?
Router
Source and destination MAC address and FCS field
The Network layer creates packets out of segments handed down from the Transport layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

4. Which of the following are 3 common types of flow control?
The Session layer creates sessions between different hosts' applications.
204.51.170.85
Buffering - windowing - congestion avoidance
Data Link (LLC sublayer)

5. Which layer is used for reliable communication between end nodes over the network and provides mechanisms for establishing - maintaining - and terminating virtual circuits; transport-fault detection recovery; and controlling the flow of information?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
132.210.184.166
Router
Bridge or switch

6. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Layer 4
Network
To create more collision domains and to add more bandwidth for users.
Router

7. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
132.210.184.166
10101100.00010000.00010100.00110111
Network

8. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
183/B7
Buffering - windowing - congestion avoidance
Transport

9. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Network layer provides routing through an internetwork and logical addressing.
Switch to switch - host to host - switch to host
Hub
Data Link (LLC sublayer)

10. This device breaks up collision domains and broadcast domains.
Fiber-opticcable
Decrease the window size.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Router

11. Why does the data communication industry use the layered OSI reference model? (Name two)
CA:F5:83:EB
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.
00001010.00001011.00001100.01100011

12. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
To create more collision domains and to add more bandwidth for users.
Layer 4
The Presentation layer makes sure that data is in a readable format for the Application layer.
11000000.10101000.00001010.00001111

13. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
The Session layer sets up - maintains - and terminates sessions between applications.
204.51.170.85
3 - 2 - 1 - none

14. This device creates one big collision domain and one large broadcast domain.
Switch to switch - host to host - switch to host
3 - 2 - 1 - none
Hub
To provide a means for the receiver to govern the amount of data sent by the sender.

15. 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
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).
Network
The Data Link layer is responsible for the framing of data packets.
198.211.57.209

16. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
RJ45 UTP crossover cable.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

17. This device can never run full duplex.
The Session layer sets up - maintains - and terminates sessions between applications.
Hub
Router
Switch to switch - host to host - switch to host

18. Logical addressing is used at this layer.
183/B7
3 - 2 - 1 - none
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Network

19. Ethernet is defined at these layers.
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.
Data Link & Physical
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
132.210.184.166

20. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Transport
The Data Link layer is responsible for the framing of data packets.
CA:F5:83:EB
The Network layer provides logical addressing - typically IP addressing and routing.

21. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Source and destination MAC address and FCS field
The Network layer provides routing through an internetwork and logical addressing.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Segments - packets - frames - bits

22. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data - segment - packet - frame - bit
Transport
204.51.170.85

23. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
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.
Fiber-opticcable
84:D2:43:B3
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

24. This device can measure the distance to a remote network.
Hub and repeater
Router
Hub
Bridge or switch

25. Which layer is responsible for creating - managing - and terminating sessions between applications?
Network
Router
The Session layer sets up - maintains - and terminates sessions between applications.
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.

26. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Router
Switch or bridge
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).
Data Link

27. Name four router functions.
The Network layer creates packets out of segments handed down from the Transport layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection

28. What are two purposes for segmentation with a bridge?
Transport
Router
Transport
To create more collision domains and to add more bandwidth for users.

29. Convert 10.11.12.99 to binary format.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Layer 4
Network
00001010.00001011.00001100.01100011

30. Which layer is responsible for keeping the data from different applications separate on the network?

31. Convert 172.16.20.55 to binary format.
48 bits (6 bytes)
10101100.00010000.00010100.00110111
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub and repeater

32. Which layer segments and reassembles data into a data stream?
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Router

33. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Buffering - windowing - congestion avoidance
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 Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link

34. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Fiber-opticcable
D8:1B:3D:76
Router

35. Name three types of connections that can use full duplex.
Router
Switch to switch - host to host - switch to host
Segments - packets - frames - bits
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).

36. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Hub
Decrease the window size.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Router

37. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
RJ45 UTP crossover cable.
Bridge or switch
198.211.57.209
132.210.184.166

38. This device sends and receives information about the Network layer.
183/B7
132.210.184.166
198.211.57.209
Router

39. Which layer is represented by frames?
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
The Data Link layer frames packets received from the Network layer.
10101100.00010000.00010100.00110111
The Data Link layer is responsible for the framing of data packets.

40. 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 Network layer provides logical addressing - typically IP addressing and routing.
Hub and repeater
Buffering - windowing - congestion avoidance

41. Segmentation of a data stream happens at which layer of the OSI model?
Transport
RJ45 UTP crossover cable.
183/B7
Data - segment - packet - frame - bit

42. This layer uses service access points.
Data Link (LLC sublayer)
RJ45 UTP crossover cable.
Data Link
Layer 4

43. Which layer provides logical addressing that routers will use for path determination?
Switch to switch - host to host - switch to host
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Bridge or switch
The Network layer provides logical addressing - typically IP addressing and routing.

44. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
The Session layer creates sessions between different hosts' applications.
The Network layer provides logical addressing - typically IP addressing and routing.
132.210.184.166
10101100.00010000.00010100.00110111

45. What is the bit length and expression form of a MAC address?
Fiber-opticcable
48 bits (6 bytes)
Source and destination MAC address and FCS field
The Network layer creates packets out of segments handed down from the Transport layer.

46. What is the purpose of flow control?
198.211.57.209
The Session layer creates sessions between different hosts' applications.
Router
To provide a means for the receiver to govern the amount of data sent by the sender.

47. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Presentation layer makes sure that data is in a readable format for the Application layer.
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.
00001010.00001011.00001100.01100011
Layer 4

48. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Session layer creates sessions between different hosts' applications.
Router
204.51.170.85
Network

49. 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?
To create more collision domains and to add more bandwidth for users.
10101100.00010000.00010100.00110111
Decrease the window size.
Transport

50. 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?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Layer 4
Switch to switch - host to host - switch to host
The Transport layer segments user data.