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 layer creates a virtual circuit before transmitting between two end stations.
198.211.57.209
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
CA:F5:83:EB
Transport

2. This device uses hardware addresses to filter a network.
Data - segment - packet - frame - bit
Bridge or switch
204.51.170.85
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.

3. Convert 192.168.10.15 to binary format.
198.211.57.209
11000000.10101000.00001010.00001111
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
3 - 2 - 1 - none

4. Which layer is represented by frames?
The Data Link layer frames packets received from the Network 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.
Switch or bridge
Data Link

5. This device can measure the distance to a remote network.
Router
The Data Link layer is responsible for the framing of data packets.
Network
Data - segment - packet - frame - bit

6. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Bridge or switch
48 bits (6 bytes)
Network

7. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Data Link & Physical
Segments - packets - frames - bits
Buffering - windowing - congestion avoidance
3 - 2 - 1 - none

8. Which layer is represented by bits?
D8:1B:3D:76
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub
The Network layer provides routing through an internetwork and logical addressing.

9. 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 Data Link layer frames packets received from the Network layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

10. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
198.211.57.209
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

11. Which layer is represented by segments?
Segments - packets - frames - bits
The Transport layer segments user data.
To provide a means for the receiver to govern the amount of data sent by the sender.
Source and destination MAC address and FCS field

12. This layer uses service access points.
Router
RJ45 UTP crossover cable.
Data Link (LLC sublayer)
Bridge or switch

13. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Layer 4
Switch to switch - host to host - switch to host
Data Link & Physical

14. This device sends and receives information about the Network layer.
84:D2:43:B3
Bridge or switch
Segments - packets - frames - bits
Router

15. This layer supports flow control and sequencing.
Router
The Session layer sets up - maintains - and terminates sessions between applications.
132.210.184.166
Transport

16. 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.
Segments - packets - frames - bits
Data Link
Network

17. Segmentation of a data stream happens at which layer of the OSI model?
Network
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.
Decrease the window size.

18. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
RJ45 UTP rolled cable.
To create more collision domains and to add more bandwidth for users.
Data Link (LLC sublayer)

19. Which layer segments and reassembles data into a data stream?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer provides logical addressing - typically IP addressing and routing.
00001010.00001011.00001100.01100011
Transport

20. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Network
Source and destination MAC address and FCS field
RJ45 UTP rolled cable.

21. Logical addressing is used at this layer.
RJ45 UTP crossover cable.
Decrease the window size.
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. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Data Link & Physical
RJ45 UTP rolled cable.
Segments - packets - frames - bits
The Network layer creates packets out of segments handed down from the Transport layer.

23. Ethernet is defined at these layers.
Data Link & Physical
Buffering - windowing - congestion avoidance
The Session layer sets up - maintains - and terminates sessions between applications.
00001010.00001011.00001100.01100011

24. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
183/B7
The Data Link layer is responsible for the framing of data packets.
Network
Segments - packets - frames - bits

25. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Buffering - windowing - congestion avoidance
The Network layer provides routing through an internetwork and logical addressing.
D8:1B:3D:76
10101100.00010000.00010100.00110111

26. Name three types of connections that can use full duplex.
Transport
Switch to switch - host to host - switch to host
Data Link
204.51.170.85

27. What is the purpose of flow control?
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).
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.

28. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Data Link
CA:F5:83:EB
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport

29. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
3 - 2 - 1 - none
CA:F5:83:EB
The Network layer creates packets out of segments handed down from the Transport layer.
The Session layer sets up - maintains - and terminates sessions between applications.

30. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Network layer provides routing through an internetwork and logical addressing.
00001010.00001011.00001100.01100011
Network
Hub and repeater

31. 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.
183/B7
84:D2:43:B3
Fiber-opticcable

32. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
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.
Hub and repeater
00001010.00001011.00001100.01100011
Layer 4

33. What are two purposes for segmentation with a bridge?
132.210.184.166
Hub
To create more collision domains and to add more bandwidth for users.
Transport

34. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
D8:1B:3D:76
Bridge or switch
Hub

35. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
RJ45 UTP crossover cable.
The Session layer creates sessions between different hosts' applications.
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

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

37. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
84:D2:43:B3
Data - segment - packet - frame - bit
11000000.10101000.00001010.00001111

38. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Transport
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
RJ45 UTP rolled cable.

39. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
Switch to switch - host to host - switch to host
To create more collision domains and to add more bandwidth for users.
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.

40. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Source and destination MAC address and FCS field
Network
RJ45 UTP crossover cable.
Data Link

41. Which layer is represented by packets?
Data - segment - packet - frame - bit
Switch or bridge
204.51.170.85
The Network layer creates packets out of segments handed down from the Transport layer.

42. 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 sets up - maintains - and terminates sessions between applications.
CA:F5:83:EB
Bridge or switch

43. 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
Router
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.
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).

44. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Router
183/B7
Network

45. This device creates one big collision domain and one large broadcast domain.
Hub
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
84:D2:43:B3

46. Name four router functions.
Transport
Router
132.210.184.166
Packet switching - Packet filtering - Internetwork communication - Path selection

47. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
10101100.00010000.00010100.00110111
CA:F5:83:EB
3 - 2 - 1 - none

48. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Source and destination MAC address and FCS field
The Session layer creates sessions between different hosts' 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.
10101100.00010000.00010100.00110111

49. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Presentation layer makes sure that data is in a readable format for the Application layer.
Buffering - windowing - congestion avoidance
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

50. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Hub and repeater
The Network layer creates packets out of segments handed down from the Transport layer.
Switch or bridge
The Data Link layer frames packets received from the Network layer.