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 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.
84:D2:43:B3
The Data Link layer is responsible for the framing of data packets.
00001010.00001011.00001100.01100011

2. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Data - segment - packet - frame - bit
RJ45 UTP crossover cable.
Transport

3. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Layer 4
Data - segment - packet - frame - bit
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
RJ45 UTP rolled cable.

4. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.
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
Bridge or switch

5. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.
3 - 2 - 1 - none
The Transport layer user virtual circuits to create a reliable connection between two hosts.

6. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
11000000.10101000.00001010.00001111
3 - 2 - 1 - none
Transport

7. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
The Data Link layer is responsible for the framing of data packets.
Transport
84:D2:43:B3

8. What are two purposes for segmentation with a bridge?
204.51.170.85
132.210.184.166
To create more collision domains and to add more bandwidth for users.
The Physical layer is responsible for the electrical and mechanical connections between devices.

9. Ethernet is defined at these layers.
11000000.10101000.00001010.00001111
Data Link & Physical
The Transport layer segments user data.
3 - 2 - 1 - none

10. This layer creates a virtual circuit before transmitting between two end stations.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
84:D2:43:B3
Transport

11. What type of RJ45 UTP cable is used between switches?
RJ45 UTP rolled cable.
Hub
The Physical layer is responsible for the electrical and mechanical connections between devices.
RJ45 UTP crossover cable.

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

13. 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?
Source and destination MAC address and FCS field
CA:F5:83:EB
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Session layer creates sessions between different hosts' applications.

14. Which of the following are 3 common types of flow control?
The Transport layer segments user data.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
To create more collision domains and to add more bandwidth for users.
Buffering - windowing - congestion avoidance

15. This device breaks up collision domains and broadcast domains.
The Transport layer segments user data.
Fiber-opticcable
Router
Packet switching - Packet filtering - Internetwork communication - Path selection

16. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Transport
Transport
132.210.184.166
RJ45 UTP rolled cable.

17. What is the purpose of flow control?
Network
11000000.10101000.00001010.00001111
To provide a means for the receiver to govern the amount of data sent by the sender.
183/B7

18. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
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.
Router
Network

19. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data - segment - packet - frame - bit
84:D2:43:B3

20. At which layer is routing implemented - enabling connections and path selection between two end systems?
Decrease the window size.
Router
The Network layer provides routing through an internetwork and logical addressing.
Router

21. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
198.211.57.209
CA:F5:83:EB
RJ45 UTP crossover cable.
Hub

22. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Hub
48 bits (6 bytes)
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Physical layer is responsible for the electrical and mechanical connections between devices.

23. Segmentation of a data stream happens at which layer of the OSI model?
11000000.10101000.00001010.00001111
Transport
Source and destination MAC address and FCS field
Switch to switch - host to host - switch to host

24. Convert 10.11.12.99 to binary format.
D8:1B:3D:76
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
Fiber-opticcable
00001010.00001011.00001100.01100011

25. This device creates one big collision domain and one large broadcast domain.
Hub
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for the electrical and mechanical connections between devices.
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.

26. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Transport
Fiber-opticcable
Layer 4
Router

27. 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 Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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).
Transport

28. Logical addressing is used at this layer.
The Transport layer segments user data.
Network
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.

29. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Data Link layer is responsible for the framing of data packets.
183/B7
Bridge or switch
Data Link

30. Which layer is represented by packets?
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer creates packets out of segments handed down from the Transport layer.
48 bits (6 bytes)

31. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Data - segment - packet - frame - bit
RJ45 UTP rolled cable.
183/B7
The Presentation layer makes sure that data is in a readable format for the Application layer.

32. Which layer is responsible for creating - managing - and terminating sessions between applications?
Data - segment - packet - frame - bit
Segments - packets - frames - bits
Data Link (LLC sublayer)
The Session layer sets up - maintains - and terminates sessions between applications.

33. Why does the data communication industry use the layered OSI reference model? (Name two)
The Network layer provides routing through an internetwork and logical addressing.
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.
132.210.184.166
Transport

34. 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.
Data Link (LLC sublayer)
Network
Network

35. When data is encapsulated - which is the correct order?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data - segment - packet - frame - bit

36. This layer supports flow control and sequencing.
RJ45 UTP crossover cable.
3 - 2 - 1 - none
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection

37. Which layer is represented by bits?
To create more collision domains and to add more bandwidth for users.
204.51.170.85
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data Link (LLC sublayer)

38. This device can measure the distance to a remote network.
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.
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
Router

39. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Layer 4
The Session layer creates sessions between different hosts' applications.
The Data Link layer is responsible for the framing of data packets.

40. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
D8:1B:3D:76
Bridge or switch
Network

41. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Data Link (LLC sublayer)
132.210.184.166
Transport

42. This device sends and receives information about the Network layer.
Buffering - windowing - congestion avoidance
RJ45 UTP rolled cable.
Router
CA:F5:83:EB

43. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Data - segment - packet - frame - bit
To create more collision domains and to add more bandwidth for users.
Segments - packets - frames - bits
Buffering - windowing - congestion avoidance

44. Which layer segments and reassembles data into a data stream?
Fiber-opticcable
Transport
Data Link & Physical
RJ45 UTP rolled cable.

45. This device can never run full duplex.
The Network layer creates packets out of segments handed down from the Transport layer.
Hub
11000000.10101000.00001010.00001111
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.

46. Convert 172.16.20.55 to binary format.
Packet switching - Packet filtering - Internetwork communication - Path selection
10101100.00010000.00010100.00110111
Decrease the window size.
Transport

47. This device uses hardware addresses to filter a network.
Hub and repeater
RJ45 UTP crossover cable.
Buffering - windowing - congestion avoidance
Bridge or switch

48. Which layer provides logical addressing that routers will use for path determination?
10101100.00010000.00010100.00110111
The Network layer provides logical addressing - typically IP addressing and routing.
Data Link
3 - 2 - 1 - none

49. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
Data - segment - packet - frame - bit
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
3 - 2 - 1 - none

50. Name three types of connections that can use full duplex.
The Network layer creates packets out of segments handed down from the Transport 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
Switch to switch - host to host - switch to host
11000000.10101000.00001010.00001111