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. This device uses hardware addresses to filter a network.
Segments - packets - frames - bits
Bridge or switch
198.211.57.209
D8:1B:3D:76

2. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
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.
CA:F5:83:EB
204.51.170.85

3. Name three types of connections that can use full duplex.
The Data Link layer is responsible for the framing of data packets.
Router
Switch to switch - host to host - switch to host
The Session layer sets up - maintains - and terminates sessions between applications.

4. Convert 10.11.12.99 to binary format.
48 bits (6 bytes)
Transport
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011

5. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
204.51.170.85

6. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
The Session layer creates sessions between different hosts' applications.
Router
RJ45 UTP rolled cable.

7. Name four router functions.
Data Link
Packet switching - Packet filtering - Internetwork communication - Path selection
Layer 4
183/B7

8. Which layer is represented by segments?
The Transport layer segments user data.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network
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

9. Which two fields are contained within an IEEE Ethernet frame header?
D8:1B:3D:76
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 (LLC sublayer)
Source and destination MAC address and FCS field

10. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Bridge or switch
The Network layer provides logical addressing - typically IP addressing and routing.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Switch or bridge

11. What type of RJ45 UTP cable is used between switches?
The Session layer sets up - maintains - and terminates sessions between applications.
Network
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
RJ45 UTP crossover cable.

12. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Data Link layer is responsible for the framing of data packets.
Transport
198.211.57.209
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).

13. Which layer segments and reassembles data into a data stream?
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 Session layer creates sessions between different hosts' applications.
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

14. Which of the following are 3 common types of flow control?
Network
Buffering - windowing - congestion avoidance
Transport
Data Link

15. This layer uses service access points.
Router
Data Link (LLC sublayer)
00001010.00001011.00001100.01100011
132.210.184.166

16. This device sends and receives information about the Network layer.
Router
Data Link & Physical
Layer 4
Transport

17. Which layer is responsible for creating - managing - and terminating sessions between applications?
48 bits (6 bytes)
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
Transport

18. Why does the data communication industry use the layered OSI reference model? (Name two)
Router
Bridge or switch
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.
10101100.00010000.00010100.00110111

19. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Buffering - windowing - congestion avoidance
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.
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.

20. Which layer is represented by bits?
Router
Segments - packets - frames - bits
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

21. Logical addressing is used at this layer.
Router
Source and destination MAC address and FCS field
Network
Packet switching - Packet filtering - Internetwork communication - Path selection

22. 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
Network
Bridge or switch
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

23. Ethernet is defined at these layers.
84:D2:43:B3
The Network layer creates packets out of segments handed down from the Transport layer.
Network
Data Link & Physical

24. What is the bit length and expression form of a MAC address?
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).
48 bits (6 bytes)
Buffering - windowing - congestion avoidance

25. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Data Link layer frames packets received from the Network layer.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
204.51.170.85
198.211.57.209

26. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
48 bits (6 bytes)
Network
204.51.170.85

27. Which layer is represented by packets?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer creates packets out of segments handed down from the Transport layer.
The Session layer creates sessions between different hosts' applications.
Hub

28. Which layer provides logical addressing that routers will use for path determination?
48 bits (6 bytes)
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 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 provides logical addressing - typically IP addressing and routing.

29. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Hub and repeater
The Network layer creates packets out of segments handed down from the Transport layer.
Hub
Layer 4

30. 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.
The Session layer sets up - maintains - and terminates sessions between applications.
Data Link & Physical
Hub and repeater

31. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
RJ45 UTP crossover cable.
Router
3 - 2 - 1 - none
Router

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

33. This layer creates a virtual circuit before transmitting between two end stations.
The Transport layer segments user data.
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 creates packets out of segments handed down from the Transport layer.
Transport

34. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Hub
84:D2:43:B3
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Segments - packets - frames - bits

35. Segmentation of a data stream happens at which layer of the OSI model?
RJ45 UTP rolled cable.
RJ45 UTP crossover cable.
Transport
The Session layer sets up - maintains - and terminates sessions between applications.

36. What is the purpose of flow control?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.
Segments - packets - frames - bits

37. Which layer is represented by frames?
204.51.170.85
3 - 2 - 1 - none
10101100.00010000.00010100.00110111
The Data Link layer frames packets received from the Network layer.

38. When data is encapsulated - which is the correct order?
Network
Data - segment - packet - frame - bit
3 - 2 - 1 - none
Layer 4

39. This device can never run full duplex.
Data Link (LLC sublayer)
The Data Link layer frames packets received from the Network layer.
Hub
Transport

40. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
RJ45 UTP rolled cable.
Buffering - windowing - congestion avoidance
00001010.00001011.00001100.01100011
Transport

41. This layer supports flow control and sequencing.
The Network layer creates packets out of segments handed down from the Transport layer.
Transport
00001010.00001011.00001100.01100011
Hub and repeater

42. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Transport
Transport
198.211.57.209
RJ45 UTP rolled cable.

43. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
198.211.57.209
Transport
To create more collision domains and to add more bandwidth for users.
Fiber-opticcable

44. This device can measure the distance to a remote network.
RJ45 UTP crossover cable.
84:D2:43:B3
Router
The Network layer provides logical addressing - typically IP addressing and routing.

45. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
11000000.10101000.00001010.00001111
Layer 4
00001010.00001011.00001100.01100011
D8:1B:3D:76

46. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
RJ45 UTP rolled cable.
48 bits (6 bytes)
183/B7
Bridge or switch

47. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
RJ45 UTP crossover 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
Transport
Hub and repeater

48. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

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?
D8:1B:3D:76
132.210.184.166
Transport
Decrease the window size.

50. 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 Network layer creates packets out of segments handed down from the Transport layer.
Fiber-opticcable
To create more collision domains and to add more bandwidth for users.
The Transport layer user virtual circuits to create a reliable connection between two hosts.