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 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
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.
The Network layer creates packets out of segments handed down from the Transport layer.

2. Convert 10.11.12.99 to binary format.
10101100.00010000.00010100.00110111
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011
Switch to switch - host to host - switch to host

3. Which layer is represented by frames?
3 - 2 - 1 - none
The Data Link layer frames packets received from the Network layer.
The Transport layer segments user data.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

4. This device sends and receives information about the Network layer.
Router
84:D2:43:B3
Layer 4
Data Link

5. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Data - segment - packet - frame - bit
Source and destination MAC address and FCS field
Layer 4
Router

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
Layer 4
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
D8:1B:3D:76

7. Which layer is represented by segments?
Data Link & Physical
Hub
Segments - packets - frames - bits
The Transport layer segments user data.

8. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
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.

9. At which layer is routing implemented - enabling connections and path selection between two end systems?
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
Data Link
The Network layer provides routing through an internetwork and logical addressing.
Layer 4

10. Which layer provides logical addressing that routers will use for path determination?
The Transport layer segments user data.
The Network layer provides logical addressing - typically IP addressing and routing.
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).
Hub

11. Which layer segments and reassembles data into a data stream?
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Network
Router

12. This device can measure the distance to a remote network.
Switch to switch - host to host - switch to host
Router
198.211.57.209
Hub and repeater

13. 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?
Switch to switch - host to host - switch to host
The Transport layer segments user data.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub and repeater

14. Logical addressing is used at this layer.
Network
The Network layer provides routing through an internetwork and logical addressing.
To create more collision domains and to add more bandwidth for users.
Segments - packets - frames - bits

15. Which two fields are contained within an IEEE Ethernet frame header?
204.51.170.85
Source and destination MAC address and FCS field
Transport
The Data Link layer frames packets received from the Network layer.

16. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Layer 4
Segments - packets - frames - bits
11000000.10101000.00001010.00001111
Hub and repeater

17. 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.
Layer 4
Decrease the window size.
Switch to switch - host to host - switch to host

18. This layer supports flow control and sequencing.
CA:F5:83:EB
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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.

19. 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?
10101100.00010000.00010100.00110111
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
Decrease the window size.
Segments - packets - frames - bits

20. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Router
183/B7
Hub
10101100.00010000.00010100.00110111

21. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
132.210.184.166
Router
Transport

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

23. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011
The Network layer creates packets out of segments handed down from the Transport layer.

24. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
The Session layer creates sessions between different hosts' applications.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Bridge or switch

25. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Router
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

26. This layer creates a virtual circuit before transmitting between two end stations.
Network
Packet switching - Packet filtering - Internetwork communication - Path selection
The Session layer sets up - maintains - and terminates sessions between applications.
Transport

27. Segmentation of a data stream happens at which layer of the OSI model?
CA:F5:83:EB
The Data Link layer frames packets received from the Network layer.
The Session layer sets up - maintains - and terminates sessions between applications.
Transport

28. This device creates one big collision domain and one large broadcast domain.
Hub
Layer 4
Transport
Switch to switch - host to host - switch to host

29. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Hub
Network
Data Link (LLC sublayer)

30. Which layer is represented by packets?
Fiber-opticcable
The Session layer creates sessions between different hosts' applications.
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link (LLC sublayer)

31. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
RJ45 UTP rolled cable.
Data - segment - packet - frame - bit

32. Name four router functions.
The Network layer provides routing through an internetwork and logical addressing.
Decrease the window size.
Layer 4
Packet switching - Packet filtering - Internetwork communication - Path selection

33. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
The Data Link layer frames packets received from the Network layer.
Data Link
Fiber-opticcable

34. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
Decrease the window size.

35. This device uses hardware addresses to filter a network.
Bridge or switch
The Network layer provides routing through an internetwork and logical addressing.
The Transport layer segments user data.
Data Link (LLC sublayer)

36. 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?
Data - segment - packet - frame - bit
D8:1B:3D:76
Data Link (LLC sublayer)
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

37. 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.
48 bits (6 bytes)
10101100.00010000.00010100.00110111
198.211.57.209

38. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Data Link layer is responsible for the framing of data packets.
Switch or bridge
204.51.170.85
Packet switching - Packet filtering - Internetwork communication - Path selection

39. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
RJ45 UTP crossover cable.
The Session layer sets up - maintains - and terminates sessions between applications.
183/B7
Data Link

40. Why does the data communication industry use the layered OSI reference model? (Name two)
Transport
The Data Link layer is responsible for the framing of data packets.
Data Link
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.

41. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Fiber-opticcable
The Network layer provides routing through an internetwork and logical addressing.
The Presentation layer makes sure that data is in a readable format for the Application layer.
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.

42. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Data - segment - packet - frame - bit
The Physical layer is responsible for the electrical and mechanical connections between devices.
183/B7
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.

43. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Network
The Data Link layer is responsible for the framing of data packets.
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

44. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
CA:F5:83:EB
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
84:D2:43:B3
198.211.57.209

45. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
00001010.00001011.00001100.01100011
RJ45 UTP rolled cable.
The Network layer creates packets out of segments handed down from the Transport layer.
Network

46. This device can never run full duplex.
Hub
183/B7
The Network layer creates packets out of segments handed down from the Transport layer.
To provide a means for the receiver to govern the amount of data sent by the sender.

47. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
183/B7
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).
Data Link & Physical

48. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer provides logical addressing - typically IP addressing and routing.
CA:F5:83:EB
Hub

49. Convert 192.168.10.15 to binary format.
Data Link (LLC sublayer)
Data - segment - packet - frame - bit
RJ45 UTP crossover cable.
11000000.10101000.00001010.00001111

50. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
CA:F5:83:EB
Data Link & Physical
204.51.170.85
Transport