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 type of RJ45 UTP cable is used between switches?
Hub
RJ45 UTP crossover cable.
Transport
00001010.00001011.00001100.01100011

2. Logical addressing is used at this layer.
Network
Hub and repeater
Bridge or switch
Hub

3. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
The Network layer creates packets out of segments handed down from the Transport layer.
The Network layer provides routing through an internetwork and logical addressing.
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.

4. Which layer is represented by segments?
The Transport layer segments user data.
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

5. This device breaks up collision domains and broadcast domains.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router
Transport
The Network layer creates packets out of segments handed down from the Transport layer.

6. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
198.211.57.209
The Data Link layer is responsible for the framing of data packets.
3 - 2 - 1 - none
D8:1B:3D:76

7. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
Network
RJ45 UTP crossover cable.
Fiber-opticcable

8. 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?
Router
The Session layer sets up - maintains - and terminates sessions between applications.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
48 bits (6 bytes)

9. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
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
198.211.57.209
The Presentation layer makes sure that data is in a readable format for the Application layer.

10. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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
Router
204.51.170.85
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

11. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
3 - 2 - 1 - none
Data - segment - packet - frame - bit
Transport

12. This device sends and receives information about the Network layer.
Decrease the window size.
Data - segment - packet - frame - bit
Data Link (LLC sublayer)
Router

13. 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?
Hub and repeater
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.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

14. This layer creates a virtual circuit before transmitting between two end stations.
Transport
The Transport layer segments user data.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
84:D2:43:B3

15. Convert 192.168.10.15 to binary format.
To create more collision domains and to add more bandwidth for users.
11000000.10101000.00001010.00001111
Layer 4
The Presentation layer makes sure that data is in a readable format for the Application layer.

16. What is the purpose of flow control?
Data Link
132.210.184.166
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

17. Convert 172.16.20.55 to binary format.
Data Link (LLC sublayer)
10101100.00010000.00010100.00110111
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Fiber-opticcable

18. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Network layer provides logical addressing - typically IP addressing and routing.
CA:F5:83:EB
Switch or bridge
Decrease the window size.

19. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
198.211.57.209
Network
Buffering - windowing - congestion avoidance

20. Ethernet is defined at these layers.
To provide a means for the receiver to govern the amount of data sent by the sender.
D8:1B:3D:76
Data Link & Physical
11000000.10101000.00001010.00001111

21. This layer supports flow control and sequencing.
Router
The Network layer provides logical addressing - typically IP addressing and routing.
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.

22. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Source and destination MAC address and FCS field
To provide a means for the receiver to govern the amount of data sent by the sender.
Router

23. Which two fields are contained within an IEEE Ethernet frame header?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Source and destination MAC address and FCS field
Buffering - windowing - congestion avoidance
Router

24. Why does the data communication industry use the layered OSI reference model? (Name two)
Router
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.
RJ45 UTP rolled cable.

25. 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
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.
Hub
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

26. Segmentation of a data stream happens at which layer of the OSI model?
Transport
Bridge or switch
Packet switching - Packet filtering - Internetwork communication - Path selection
Network

27. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
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).
10101100.00010000.00010100.00110111
The Transport layer user virtual circuits to create a reliable connection between two hosts.

28. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
Router
Data - segment - packet - frame - bit
Router

29. Which layer is represented by bits?
Network
Buffering - windowing - congestion avoidance
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport

30. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Transport
Data Link
Hub
Fiber-opticcable

31. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
132.210.184.166
Buffering - windowing - congestion avoidance
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

32. What is the bit length and expression form of a MAC address?
Segments - packets - frames - bits
Layer 4
Router
48 bits (6 bytes)

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

34. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
RJ45 UTP crossover cable.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Switch or bridge

35. 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.
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.

36. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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 Session layer creates sessions between different hosts' applications.
Data - segment - packet - frame - bit
3 - 2 - 1 - none

37. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
132.210.184.166
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Router

38. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
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 Session layer creates sessions between different hosts' applications.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
RJ45 UTP rolled cable.

39. Convert 10.11.12.99 to binary format.
RJ45 UTP crossover cable.
RJ45 UTP rolled cable.
Layer 4
00001010.00001011.00001100.01100011

40. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Switch to switch - host to host - switch to host
The Network layer creates packets out of segments handed down from the Transport layer.
Packet switching - Packet filtering - Internetwork communication - Path selection
Segments - packets - frames - bits

41. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Network layer provides routing through an internetwork and logical addressing.
Decrease the window size.
Router
Data - segment - packet - frame - bit

42. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Router
The Network layer provides logical addressing - typically IP addressing and routing.
Data Link (LLC sublayer)
Fiber-opticcable

43. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
To create more collision domains and to add more bandwidth for users.
Segments - packets - frames - bits
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

44. 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
Decrease the window size.
Router
To create more collision domains and to add more bandwidth for users.

45. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
11000000.10101000.00001010.00001111
Source and destination MAC address and FCS field
Network
48 bits (6 bytes)

46. Name three types of connections that can use full duplex.
Decrease the window size.
Switch to switch - host to host - switch to host
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

47. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Segments - packets - frames - bits

48. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Transport
198.211.57.209
Source and destination MAC address and FCS field
183/B7

49. This device uses hardware addresses to filter a network.
Buffering - windowing - congestion avoidance
The Network layer provides logical addressing - typically IP addressing and routing.
Bridge or switch
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.

50. This device can measure the distance to a remote network.
The Presentation layer makes sure that data is in a readable format for the Application layer.
RJ45 UTP crossover cable.
Router
Hub