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 creates one big collision domain and one large broadcast domain.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
RJ45 UTP crossover cable.
Hub

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

3. 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.
The Network layer creates packets out of segments handed down from the Transport layer.
Transport
The Session layer sets up - maintains - and terminates sessions between applications.

4. Which layer is represented by frames?
D8:1B:3D:76
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
The Data Link layer frames packets received from the Network layer.

5. This device can never run full duplex.
183/B7
Transport
Hub
Bridge or switch

6. 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.
Hub
The Physical layer is responsible for the electrical and mechanical connections between devices.
48 bits (6 bytes)

7. Logical addressing is used at this layer.
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer creates packets out of segments handed down from the Transport layer.

8. 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?
To provide a means for the receiver to govern the amount of data sent by the sender.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link & Physical
Decrease the window size.

9. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Bridge or switch
Transport
Data Link & Physical
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.

10. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Data Link (LLC sublayer)
The Session layer sets up - maintains - and terminates sessions between applications.
D8:1B:3D:76
Switch to switch - host to host - switch to host

11. 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
3 - 2 - 1 - none
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
The Network layer provides routing through an internetwork and logical addressing.

12. This device can measure the distance to a remote network.
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
Transport
The Network layer provides routing through an internetwork and logical addressing.

13. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
The Session layer creates sessions between different hosts' applications.
183/B7
Network

14. At which layer is routing implemented - enabling connections and path selection between two end systems?
D8:1B:3D:76
The Network layer provides routing through an internetwork and logical addressing.
Data Link (LLC sublayer)
183/B7

15. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Data - segment - packet - frame - bit
Fiber-opticcable
The Session layer sets up - maintains - and terminates sessions between applications.

16. Which layer is represented by packets?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
198.211.57.209
84:D2:43:B3
The Network layer creates packets out of segments handed down from the Transport layer.

17. This device uses hardware addresses to filter a network.
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.
Bridge or switch
Network
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

18. Which layer is represented by segments?
84:D2:43:B3
48 bits (6 bytes)
The Transport layer segments user data.
183/B7

19. What type of RJ45 UTP cable is used between switches?
Network
RJ45 UTP crossover cable.
132.210.184.166
Bridge or switch

20. Convert 172.16.20.55 to binary format.
The Data Link layer frames packets received from the Network layer.
To create more collision domains and to add more bandwidth for users.
Data - segment - packet - frame - bit
10101100.00010000.00010100.00110111

21. 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.
3 - 2 - 1 - none
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
Network

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?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
198.211.57.209
Transport
Network

23. 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?
Buffering - windowing - congestion avoidance
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
CA:F5:83:EB

24. 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.
The Network layer provides routing through an internetwork and logical addressing.
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).
Switch to switch - host to host - switch to host

25. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
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.
To create more collision domains and to add more bandwidth for users.
3 - 2 - 1 - none
CA:F5:83:EB

26. Ethernet is defined at these layers.
Router
Bridge or switch
The Session layer creates sessions between different hosts' applications.
Data Link & Physical

27. Why does the data communication industry use the layered OSI reference model? (Name two)
Bridge or switch
CA:F5:83:EB
84:D2:43:B3
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.

28. This layer supports flow control and sequencing.
Transport
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.
Packet switching - Packet filtering - Internetwork communication - Path selection
Segments - packets - frames - bits

29. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
48 bits (6 bytes)
D8:1B:3D:76
Transport

30. This device sends and receives information about the Network layer.
Decrease the window size.
Switch or bridge
Router
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

31. Which layer is represented by bits?
Router
00001010.00001011.00001100.01100011
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

32. When data is encapsulated - which is the correct order?
Layer 4
Network
Switch to switch - host to host - switch to host
Data - segment - packet - frame - bit

33. Which two fields are contained within an IEEE Ethernet frame header?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Data Link layer is responsible for the framing of data packets.
The Session layer creates sessions between different hosts' applications.
Source and destination MAC address and FCS field

34. Acknowledgments - sequencing - and flow control are characteristics of which OSI 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
Hub and repeater
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).

35. This layer uses service access points.
Hub
Data Link (LLC sublayer)
Network
The Network layer provides logical addressing - typically IP addressing and routing.

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

37. This layer creates a virtual circuit before transmitting between two end stations.
Source and destination MAC address and FCS field
Decrease the window size.
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

38. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
183/B7
84:D2:43:B3
Hub

39. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Transport layer segments user data.
10101100.00010000.00010100.00110111
198.211.57.209
Router

40. What are two purposes for segmentation with a bridge?
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).
To create more collision domains and to add more bandwidth for users.
The Data Link layer frames packets received from the Network layer.
The Network layer provides routing through an internetwork and logical addressing.

41. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Decrease the window size.
Data - segment - packet - frame - bit

42. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Hub
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Bridge or switch
204.51.170.85

43. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Hub
84:D2:43:B3
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.

44. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
11000000.10101000.00001010.00001111
Transport
204.51.170.85
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

45. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Data Link layer is responsible for the framing of data packets.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
Hub and repeater

46. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Source and destination MAC address and FCS field
RJ45 UTP rolled cable.
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.

47. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
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 rolled cable.

48. This device breaks up collision domains and broadcast domains.
D8:1B:3D:76
The Data Link layer is responsible for the framing of data packets.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router

49. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
3 - 2 - 1 - none
Layer 4
CA:F5:83:EB
Router

50. Name three types of connections that can use full duplex.
3 - 2 - 1 - none
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Data Link layer frames packets received from the Network layer.
Switch to switch - host to host - switch to host