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. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Network
CA:F5:83:EB
Transport
00001010.00001011.00001100.01100011

2. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
CA:F5:83:EB
198.211.57.209
Bridge or switch

3. Which layer is responsible for creating - managing - and terminating sessions between applications?
Transport
The Session layer sets up - maintains - and terminates sessions between applications.
CA:F5:83:EB
Decrease the window size.

4. Why does the data communication industry use the layered OSI reference model? (Name two)
Network
Segments - packets - frames - bits
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.
84:D2:43:B3

5. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
10101100.00010000.00010100.00110111
183/B7
Layer 4
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

6. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Decrease the window size.
Hub
Transport

7. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
48 bits (6 bytes)
11000000.10101000.00001010.00001111
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 or bridge

8. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Bridge or switch
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer creates packets out of segments handed down from the Transport layer.
183/B7

9. Which layer is represented by packets?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer creates packets out of segments handed down from the Transport layer.
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.

10. Convert 192.168.10.15 to binary format.
Source and destination MAC address and FCS field
11000000.10101000.00001010.00001111
Bridge or switch
Transport

11. This layer creates a virtual circuit before transmitting between two end stations.
Segments - packets - frames - bits
The Data Link layer frames packets received from the Network layer.
CA:F5:83:EB
Transport

12. This device creates one big collision domain and one large broadcast domain.
Transport
Router
132.210.184.166
Hub

13. Name three types of connections that can use full duplex.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Switch to switch - host to host - switch to host
Packet switching - Packet filtering - Internetwork communication - Path selection
Decrease the window size.

14. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
84:D2:43:B3
Segments - packets - frames - bits
Layer 4
3 - 2 - 1 - none

15. 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?
Data - segment - packet - frame - bit
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Router
The Presentation layer makes sure that data is in a readable format for the Application layer.

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

17. This device can measure the distance to a remote network.
Data Link (LLC sublayer)
Transport
Router
The Transport layer segments user data.

18. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Data - segment - packet - frame - bit
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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.
Transport

19. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Transport
3 - 2 - 1 - none
Router
10101100.00010000.00010100.00110111

20. Convert 10.11.12.99 to binary format.
RJ45 UTP crossover cable.
Fiber-opticcable
The Data Link layer is responsible for the framing of data packets.
00001010.00001011.00001100.01100011

21. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Hub
Data Link (LLC sublayer)
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport

22. Name four router functions.
Data - segment - packet - frame - bit
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Data Link layer is responsible for the framing of data packets.
Packet switching - Packet filtering - Internetwork communication - Path selection

23. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Network layer provides routing through an internetwork and logical addressing.
Data Link & Physical
198.211.57.209
RJ45 UTP rolled cable.

24. This device breaks up collision domains and broadcast domains.
Router
00001010.00001011.00001100.01100011
Source and destination MAC address and FCS field
48 bits (6 bytes)

25. What are two purposes for segmentation with a bridge?
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.
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.

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

27. This device sends and receives information about the Network layer.
Router
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
RJ45 UTP crossover cable.

28. What type of RJ45 UTP cable is used between switches?
The Network layer creates packets out of segments handed down from the Transport layer.
RJ45 UTP crossover cable.
Fiber-opticcable
204.51.170.85

29. This device uses hardware addresses to filter a network.
The Presentation layer makes sure that data is in a readable format for the Application 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).
Bridge or switch
CA:F5:83:EB

30. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
84:D2:43:B3
204.51.170.85
The Transport layer segments user data.
The Data Link layer frames packets received from the Network layer.

31. Which layer segments and reassembles data into a data stream?
Transport
Decrease the window size.
The Network layer provides routing through an internetwork and logical addressing.
The Physical layer is responsible for the electrical and mechanical connections between devices.

32. 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?
Network
The Network layer provides logical addressing - typically IP addressing and routing.
Decrease the window size.
Switch or bridge

33. Convert 172.16.20.55 to binary format.
The Data Link layer is responsible for the framing of data packets.
Data Link (LLC sublayer)
10101100.00010000.00010100.00110111
The Presentation layer makes sure that data is in a readable format for the Application layer.

34. This layer uses service access points.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Source and destination MAC address and FCS field
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link (LLC sublayer)

35. 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.
The Network layer provides routing through an internetwork and logical addressing.
198.211.57.209
48 bits (6 bytes)

36. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Buffering - windowing - congestion avoidance
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Segments - packets - frames - bits
The Data Link layer frames packets received from the Network layer.

37. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
00001010.00001011.00001100.01100011
Hub
Hub and repeater
Data Link

38. Which layer is represented by segments?
00001010.00001011.00001100.01100011
Router
The Transport layer segments user data.
To create more collision domains and to add more bandwidth for users.

39. Segmentation of a data stream happens at which layer of the OSI model?
The Physical layer is responsible for the electrical and mechanical connections between devices.
183/B7
Data Link
Transport

40. Logical addressing is used at this layer.
Buffering - windowing - congestion avoidance
10101100.00010000.00010100.00110111
11000000.10101000.00001010.00001111
Network

41. Which layer is represented by bits?
Router
Hub
132.210.184.166
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

42. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Network
Fiber-opticcable
RJ45 UTP rolled cable.
Router

43. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
RJ45 UTP crossover cable.
The Data Link layer is responsible for the framing of data packets.
Data Link & Physical
The Network layer provides routing through an internetwork and logical addressing.

44. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Network layer provides routing through an internetwork and logical addressing.
Data - segment - packet - frame - bit

45. 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
Data Link (LLC sublayer)
The Transport layer user virtual circuits to create a reliable connection between two hosts.

46. This layer supports flow control and sequencing.
Network
The Network layer provides logical addressing - typically IP addressing and routing.
Decrease the window size.
Transport

47. This device can never run full duplex.
Hub
RJ45 UTP rolled cable.
Transport
The Network layer provides routing through an internetwork and logical addressing.

48. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Data Link (LLC sublayer)
Layer 4
Buffering - windowing - congestion avoidance
Fiber-opticcable

49. What is the bit length and expression form of a MAC address?
Decrease the window size.
The Data Link layer frames packets received from the Network layer.
48 bits (6 bytes)
183/B7

50. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Data Link
RJ45 UTP rolled cable.
Decrease the window size.
Hub