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. What is the bit length and expression form of a MAC address?
10101100.00010000.00010100.00110111
48 bits (6 bytes)
Fiber-opticcable
Decrease the window size.

2. This layer uses service access points.
3 - 2 - 1 - none
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link (LLC sublayer)
Switch to switch - host to host - switch to host

3. Convert 172.16.20.55 to binary format.
Data Link & Physical
10101100.00010000.00010100.00110111
Switch to switch - host to host - switch to host
The Session layer sets up - maintains - and terminates sessions between applications.

4. Which layer is represented by frames?
Hub
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Data Link layer frames packets received from the Network layer.
Network

5. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router
198.211.57.209
RJ45 UTP rolled cable.

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
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).
The Data Link layer frames packets received from the Network layer.
Source and destination MAC address and FCS field

7. 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?
00001010.00001011.00001100.01100011
Switch to switch - host to host - switch to host
The Data Link layer frames packets received from the Network layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

8. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Data Link layer frames packets received from the Network layer.
Layer 4
Network
Transport

9. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
Switch or bridge
Hub and repeater
To create more collision domains and to add more bandwidth for users.

10. Which layer is responsible for creating - managing - and terminating sessions between applications?
132.210.184.166
Switch to switch - host to host - switch to host
The Transport layer segments user data.
The Session layer sets up - maintains - and terminates sessions between applications.

11. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Transport
Data - segment - packet - frame - bit
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub

12. Why does the data communication industry use the layered OSI reference model? (Name two)
To provide a means for the receiver to govern the amount of data sent by the sender.
183/B7
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.
Layer 4

13. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer provides logical addressing - typically IP addressing and routing.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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

14. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
Data Link & Physical
Router

15. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Network
Decrease the window size.
11000000.10101000.00001010.00001111

16. This device creates one big collision domain and one large broadcast domain.
The Session layer sets up - maintains - and terminates sessions between applications.
Bridge or switch
Hub
Router

17. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
Decrease the window size.
Transport
Bridge or switch

18. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Network layer creates packets out of segments handed down from the Transport layer.
Switch or bridge
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
204.51.170.85

19. Logical addressing is used at this 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).
Network
Bridge or switch
D8:1B:3D:76

20. Segmentation of a data stream happens at which layer of the OSI model?
The Data Link layer frames packets received from the Network layer.
Bridge or switch
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

21. 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?
00001010.00001011.00001100.01100011
Hub
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Network

22. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
Source and destination MAC address and FCS field
The Transport layer segments user data.

23. At which layer is routing implemented - enabling connections and path selection between two end systems?
Transport
204.51.170.85
The Network layer provides routing through an internetwork and logical addressing.
Hub

24. This device sends and receives information about the Network layer.
Network
Data - segment - packet - frame - bit
Hub
Router

25. This device can measure the distance to a remote network.
Router
The Data Link layer frames packets received from the Network layer.
00001010.00001011.00001100.01100011
To create more collision domains and to add more bandwidth for users.

26. This device breaks up collision domains and broadcast domains.
Source and destination MAC address and FCS field
Switch or bridge
Router
204.51.170.85

27. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
The Data Link layer frames packets received from the Network layer.
84:D2:43:B3
Network

28. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
To create more collision domains and to add more bandwidth for users.
RJ45 UTP rolled cable.
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).

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

30. Which layer segments and reassembles data into a data stream?
Transport
Switch to switch - host to host - switch to host
The Session layer creates sessions between different hosts' applications.
Data Link (LLC sublayer)

31. This device creates many smaller collision domains - but the network is still one large broadcast domain.
CA:F5:83:EB
Switch or bridge
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011

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?
204.51.170.85
The Transport layer segments user data.
Decrease the window size.
The Network layer creates packets out of segments handed down from the Transport layer.

33. Ethernet is defined at these layers.
Hub
Data Link & Physical
To create more collision domains and to add more bandwidth for users.
The Data Link layer frames packets received from the Network layer.

34. This layer supports flow control and sequencing.
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
Source and destination MAC address and FCS field
Switch to switch - host to host - switch to host

35. Name three types of connections that can use full duplex.
The Data Link layer frames packets received from the Network layer.
Segments - packets - frames - bits
Switch to switch - host to host - switch to host
The Presentation layer makes sure that data is in a readable format for the Application layer.

36. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
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.
3 - 2 - 1 - none
Transport
Segments - packets - frames - bits

37. What type of RJ45 UTP cable is used between switches?
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
RJ45 UTP crossover cable.
The Data Link layer is responsible for the framing of data packets.
The Network layer provides logical addressing - typically IP addressing and routing.

38. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Hub
3 - 2 - 1 - none
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

39. What are two purposes for segmentation with a bridge?
RJ45 UTP crossover cable.
To create more collision domains and to add more bandwidth for users.
Data Link (LLC sublayer)
Data - segment - packet - frame - bit

40. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
D8:1B:3D:76
204.51.170.85
84:D2:43:B3
The Data Link layer frames packets received from the Network layer.

41. Convert 10.11.12.99 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
Hub
Decrease the window size.
00001010.00001011.00001100.01100011

42. Which two fields are contained within an IEEE Ethernet frame header?
198.211.57.209
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Source and destination MAC address and FCS field
RJ45 UTP rolled cable.

43. What is the purpose of flow control?
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.
To create more collision domains and to add more bandwidth for users.
Router

44. Which layer provides logical addressing that routers will use for path determination?
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
The Network layer provides logical addressing - typically IP addressing and routing.
Data - segment - packet - frame - bit

45. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Data - segment - packet - frame - bit
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Transport layer segments user data.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

46. This device uses hardware addresses to filter a network.
Bridge or switch
48 bits (6 bytes)
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub and repeater

47. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
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.
Data Link
183/B7

48. When data is encapsulated - which is the correct order?
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer provides logical addressing - typically IP addressing and routing.
Hub
Data - segment - packet - frame - bit

49. This device can never run full duplex.
Router
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.
Fiber-opticcable

50. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Router
The Data Link layer frames packets received from the Network layer.
Hub and repeater
The Data Link layer is responsible for the framing of data packets.