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. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Transport
Transport
Fiber-opticcable

2. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
11000000.10101000.00001010.00001111
Hub
Router

3. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Network
Transport
Data Link
The Network layer provides logical addressing - typically IP addressing and routing.

4. This device can measure the distance to a remote network.
The Session layer sets up - maintains - and terminates sessions between applications.
Switch to switch - host to host - switch to host
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router

5. This layer supports flow control and sequencing.
Data Link (LLC sublayer)
Switch to switch - host to host - switch to host
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.
Transport

6. 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).
Data Link
Switch or bridge
The Network layer provides logical addressing - typically IP addressing and routing.

7. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Network
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.
Transport
Fiber-opticcable

8. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Session layer creates sessions between different hosts' applications.
3 - 2 - 1 - none
CA:F5:83:EB
The Presentation layer makes sure that data is in a readable format for the Application layer.

9. Convert 192.168.10.15 to binary format.
3 - 2 - 1 - none
Layer 4
Transport
11000000.10101000.00001010.00001111

10. Logical addressing is used at this layer.
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 Network layer provides logical addressing - typically IP addressing and routing.
Segments - packets - frames - bits
Network

11. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Data Link
204.51.170.85
Router
Router

12. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Source and destination MAC address and FCS field
Hub and repeater
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Switch or bridge

13. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Decrease the window size.
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.
Segments - packets - frames - bits

14. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
Layer 4
D8:1B:3D:76
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.

15. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
The Physical layer is responsible for the electrical and mechanical connections between devices.
Router
Data - segment - packet - frame - bit

16. Which layer is responsible for creating - managing - and terminating sessions between applications?
Hub and repeater
Fiber-opticcable
The Network layer provides routing through an internetwork and logical addressing.
The Session layer sets up - maintains - and terminates sessions between applications.

17. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Router
Buffering - windowing - congestion avoidance
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
48 bits (6 bytes)

18. Which two fields are contained within an IEEE Ethernet frame header?
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
00001010.00001011.00001100.01100011
Source and destination MAC address and FCS field
Data Link

19. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Session layer creates sessions between different hosts' applications.
Hub
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
Switch to switch - host to host - switch to host

20. Which layer provides logical addressing that routers will use for path determination?
48 bits (6 bytes)
RJ45 UTP rolled cable.
RJ45 UTP crossover cable.
The Network layer provides logical addressing - typically IP addressing and routing.

21. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
3 - 2 - 1 - none
48 bits (6 bytes)
84:D2:43:B3
RJ45 UTP rolled cable.

22. This device uses hardware addresses to filter a network.
The Data Link layer is responsible for the framing of data packets.
Decrease the window size.
D8:1B:3D:76
Bridge or switch

23. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
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).
D8:1B:3D:76
Router
Network

24. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Network
The Data Link layer is responsible for the framing of data packets.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport

25. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
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.
Network

26. This device can never run full duplex.
Switch or bridge
48 bits (6 bytes)
Hub
Segments - packets - frames - bits

27. Ethernet is defined at these layers.
Router
Fiber-opticcable
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data Link & Physical

28. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Physical layer is responsible for the electrical and mechanical connections between devices.
3 - 2 - 1 - none
Router
Network

29. Which layer is represented by segments?
The Transport layer segments user data.
Data Link & Physical
RJ45 UTP crossover cable.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

30. This device breaks up collision domains and broadcast domains.
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).
Router
The Session layer sets up - maintains - and terminates sessions between applications.
Buffering - windowing - congestion avoidance

31. 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?
Transport
Decrease the window size.
The Network layer creates packets out of segments handed down from the Transport 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.

32. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Switch or bridge
198.211.57.209
The Network layer creates packets out of segments handed down from the Transport layer.
Router

33. 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?
198.211.57.209
The Network layer provides logical addressing - typically IP addressing and routing.
Buffering - windowing - congestion avoidance
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

34. 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.
The Transport layer segments user data.
Data Link & Physical
Router

35. This device creates one big collision domain and one large broadcast domain.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Network layer creates packets out of segments handed down from the Transport layer.
Hub and repeater
Hub

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

37. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Data Link layer frames packets received from the Network layer.
Bridge or switch
The Session layer sets up - maintains - and terminates sessions between applications.
Network

38. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Layer 4
132.210.184.166
RJ45 UTP rolled cable.
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).

39. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Router
00001010.00001011.00001100.01100011
Segments - packets - frames - bits
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.

40. This layer creates a virtual circuit before transmitting between two end stations.
The Network layer creates packets out of segments handed down from the Transport layer.
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
Bridge or switch

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

42. Which layer is represented by bits?
Hub
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport

43. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
CA:F5:83:EB
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Session layer sets up - maintains - and terminates sessions between applications.

44. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
Data Link
Transport
The Data Link layer is responsible for the framing of data packets.

45. This device sends and receives information about the Network layer.
Decrease the window size.
Layer 4
Router
198.211.57.209

46. At which layer is routing implemented - enabling connections and path selection between two end systems?
Transport
Data Link
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer provides routing through an internetwork and logical addressing.

47. 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?
Bridge or switch
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Buffering - windowing - congestion avoidance
Router

48. Convert 10.11.12.99 to binary format.
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011
Network
84:D2:43:B3

49. Name four router functions.
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Packet switching - Packet filtering - Internetwork communication - Path selection
RJ45 UTP rolled cable.

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