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. Which layer is represented by bits?
RJ45 UTP rolled cable.
Hub
Data Link
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

2. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
3 - 2 - 1 - none
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
183/B7

3. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport
CA:F5:83:EB
The Physical layer is responsible for the electrical and mechanical connections between devices.

4. Convert 172.16.20.55 to binary format.
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
The Data Link layer frames packets received from the Network layer.
The Network layer creates packets out of segments handed down from the Transport layer.
10101100.00010000.00010100.00110111

5. This device sends and receives information about the Network layer.
198.211.57.209
Switch or bridge
The Physical layer is responsible for the electrical and mechanical connections between devices.
Router

6. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
11000000.10101000.00001010.00001111
Source and destination MAC address and FCS field
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.
Fiber-opticcable

7. 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?
183/B7
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Fiber-opticcable
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

8. Ethernet is defined at these layers.
Data Link & Physical
Segments - packets - frames - bits
Transport
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).

9. 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
Packet switching - Packet filtering - Internetwork communication - Path selection
84:D2:43:B3
Data Link (LLC sublayer)
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).

10. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Transport layer segments user data.
204.51.170.85
Data Link
Source and destination MAC address and FCS field

11. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Data - segment - packet - frame - bit
RJ45 UTP rolled cable.
Segments - packets - frames - bits
Network

12. 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 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.
The Network layer creates packets out of segments handed down from the Transport layer.

13. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Session layer creates sessions between different hosts' applications.
Decrease the window size.
Segments - packets - frames - bits
Data Link

14. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Hub and repeater
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.

15. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Network
Packet switching - Packet filtering - Internetwork communication - Path selection
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
10101100.00010000.00010100.00110111

16. 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.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Fiber-opticcable
The Physical layer is responsible for the electrical and mechanical connections between devices.

17. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
Source and destination MAC address and FCS field
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

18. Why does the data communication industry use the layered OSI reference model? (Name two)
CA:F5:83:EB
00001010.00001011.00001100.01100011
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.
Router

19. Which layer is represented by packets?
The Data Link layer is responsible for the framing of data packets.
Hub
Data Link
The Network layer creates packets out of segments handed down from the Transport layer.

20. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Layer 4
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
198.211.57.209

21. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Switch to switch - host to host - switch to host
Hub

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

23. This device can measure the distance to a remote network.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport
Switch to switch - host to host - switch to host
Router

24. This device creates one big collision domain and one large broadcast domain.
Hub
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 provide a means for the receiver to govern the amount of data sent by the sender.
Switch to switch - host to host - switch to host

25. 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 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 Transport layer user virtual circuits to create a reliable connection between two hosts.
Router
The Session layer creates sessions between different hosts' applications.

26. At which layer is routing implemented - enabling connections and path selection between two end systems?
Router
Segments - packets - frames - bits
00001010.00001011.00001100.01100011
The Network layer provides routing through an internetwork and logical addressing.

27. This device can never run full duplex.
The Session layer creates sessions between different hosts' applications.
3 - 2 - 1 - none
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub

28. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Layer 4
3 - 2 - 1 - none
The Data Link layer is responsible for the framing of data packets.

29. Which layer provides logical addressing that routers will use for path determination?
The Session layer creates sessions between different hosts' applications.
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer provides logical addressing - typically IP addressing and routing.
Hub and repeater

30. What are two purposes for segmentation with a bridge?
Buffering - windowing - congestion avoidance
The Session layer creates sessions between different hosts' applications.
To create more collision domains and to add more bandwidth for users.
84:D2:43:B3

31. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Transport
The Session layer creates sessions between different hosts' applications.
Data Link
3 - 2 - 1 - none

32. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Transport
The Session layer creates sessions between different hosts' applications.
Network
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

33. 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?
Data - segment - packet - frame - bit
The Data Link layer is responsible for the framing of data packets.
The Session layer sets up - maintains - and terminates sessions between applications.
Decrease the window size.

34. Logical addressing is used at this layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Session layer sets up - maintains - and terminates sessions between applications.
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

35. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
To create more collision domains and to add more bandwidth for users.
204.51.170.85
Layer 4
Segments - packets - frames - bits

36. This layer uses service access points.
Data Link
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
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link (LLC sublayer)

37. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Hub and repeater
3 - 2 - 1 - none
The Data Link layer frames packets received from the Network layer.

38. This layer creates a virtual circuit before transmitting between two end stations.
Network
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
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.

39. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data - segment - packet - frame - bit
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 Data Link layer frames packets received from the Network layer.

40. What is the purpose of flow control?
198.211.57.209
D8:1B:3D:76
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link

41. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides routing through an internetwork and logical addressing.
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub and repeater

42. Name three types of connections that can use full duplex.
Data Link (LLC sublayer)
Switch to switch - host to host - switch to host
Hub
Data - segment - packet - frame - bit

43. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Bridge or switch
CA:F5:83:EB
The Session layer sets up - maintains - and terminates sessions between applications.
Transport

44. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport

45. Which layer segments and reassembles data into a data stream?
Hub
Transport
CA:F5:83:EB
To create more collision domains and to add more bandwidth for users.

46. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Network layer provides logical addressing - typically IP addressing and routing.
Packet switching - Packet filtering - Internetwork communication - Path selection
RJ45 UTP rolled cable.
204.51.170.85

47. This layer supports flow control and sequencing.
Transport
RJ45 UTP rolled cable.
132.210.184.166
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

48. Convert 10.11.12.99 to binary format.
To create more collision domains and to add more bandwidth for users.
00001010.00001011.00001100.01100011
The Session layer sets up - maintains - and terminates sessions between applications.
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.

49. Segmentation of a data stream happens at which layer of the OSI model?
Transport
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
The Session layer creates sessions between different hosts' applications.

50. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
Packet switching - Packet filtering - Internetwork communication - Path selection
132.210.184.166
The Network layer provides routing through an internetwork and logical addressing.