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 purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
RJ45 UTP rolled cable.
Router
3 - 2 - 1 - none

2. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Presentation layer makes sure that data is in a readable format for the Application layer.
198.211.57.209
Data Link (LLC sublayer)
Network

3. This layer creates a virtual circuit before transmitting between two end stations.
198.211.57.209
CA:F5:83:EB
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport

4. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Segments - packets - frames - bits
The Network layer creates packets out of segments handed down from the Transport layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

5. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Hub
Data Link (LLC sublayer)
The Data Link layer frames packets received from the Network layer.

6. Name four router functions.
CA:F5:83:EB
Transport
Network
Packet switching - Packet filtering - Internetwork communication - Path selection

7. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
3 - 2 - 1 - none
CA:F5:83:EB
The Presentation layer makes sure that data is in a readable format for the Application layer.
11000000.10101000.00001010.00001111

8. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data Link & Physical
132.210.184.166
The Physical layer is responsible for the electrical and mechanical connections between devices.

9. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Network
Layer 4
The Data Link layer frames packets received from the Network layer.
The Network layer provides routing through an internetwork and logical addressing.

10. What type of RJ45 UTP cable is used between switches?
Transport
Hub and repeater
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 crossover cable.

11. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

12. 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.
132.210.184.166
Switch or bridge
To provide a means for the receiver to govern the amount of data sent by the sender.

13. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
132.210.184.166
Hub
The Network layer provides routing through an internetwork and logical addressing.

14. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Transport
To create more collision domains and to add more bandwidth for users.
The Network layer creates packets out of segments handed down from the Transport layer.
Segments - packets - frames - bits

15. 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?
Switch or bridge
10101100.00010000.00010100.00110111
84:D2:43:B3
The Transport layer user virtual circuits to create a reliable connection between two hosts.

16. This device sends and receives information about the Network layer.
Router
D8:1B:3D:76
The Network layer creates packets out of segments handed down from the Transport layer.
Bridge or switch

17. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
To create more collision domains and to add more bandwidth for users.
Network
The Transport layer segments user data.
D8:1B:3D:76

18. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
The Data Link layer is responsible for the framing of data packets.
RJ45 UTP rolled cable.
Decrease the window size.
Buffering - windowing - congestion avoidance

19. Convert 172.16.20.55 to binary format.
The Data Link layer is responsible for the framing of data packets.
To create more collision domains and to add more bandwidth for users.
10101100.00010000.00010100.00110111
48 bits (6 bytes)

20. This layer uses service access points.
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.
Data Link (LLC sublayer)
Network
Bridge or switch

21. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data - segment - packet - frame - bit
Data Link
Decrease the window size.
The Physical layer is responsible for the electrical and mechanical connections between devices.

22. What are two purposes for segmentation with a bridge?
Data Link
Data - segment - packet - frame - bit
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
To create more collision domains and to add more bandwidth for users.

23. Which of the following are 3 common types of flow control?
Data Link & Physical
Buffering - windowing - congestion avoidance
Router
Transport

24. This layer supports flow control and sequencing.
Transport
To create more collision domains and to add more bandwidth for users.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
183/B7

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 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).
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
CA:F5:83:EB

26. What is the bit length and expression form of a MAC address?
RJ45 UTP rolled cable.
48 bits (6 bytes)
The Network layer provides routing through an internetwork and logical addressing.
Source and destination MAC address and FCS field

27. At which layer is routing implemented - enabling connections and path selection between two end systems?
84:D2:43:B3
Transport
The Network layer provides routing through an internetwork and logical addressing.
Transport

28. This device can never run full duplex.
Packet switching - Packet filtering - Internetwork communication - Path selection
Source and destination MAC address and FCS field
Hub
RJ45 UTP crossover cable.

29. This device breaks up collision domains and broadcast domains.
Switch to switch - host to host - switch to host
The Data Link layer frames packets received from the Network layer.
Router
To provide a means for the receiver to govern the amount of data sent by the sender.

30. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
198.211.57.209
Layer 4
132.210.184.166

31. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Data Link layer is responsible for the framing of data packets.
The Session layer sets up - maintains - and terminates sessions between applications.
198.211.57.209
132.210.184.166

32. Logical addressing is used at this layer.
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
D8:1B:3D:76
Network

33. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Data Link
Data - segment - packet - frame - bit
132.210.184.166
Hub and repeater

34. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
00001010.00001011.00001100.01100011
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
Switch or bridge
RJ45 UTP rolled cable.

35. Which layer is represented by frames?
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Data Link layer frames packets received from the Network layer.
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.
D8:1B:3D:76

36. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
Hub and repeater
Transport
Hub

37. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Switch or bridge
The Network layer creates packets out of segments handed down from the Transport 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.
183/B7

38. This device can measure the distance to a remote network.
Hub
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Layer 4
Router

39. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
To provide a means for the receiver to govern the amount of data sent by the sender.
The Data Link layer frames packets received from the Network layer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Buffering - windowing - congestion avoidance

40. This device uses hardware addresses to filter a network.
The Network layer provides logical addressing - typically IP addressing and routing.
Bridge or switch
The Transport layer segments user data.
Packet switching - Packet filtering - Internetwork communication - Path selection

41. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
The Data Link layer is responsible for the framing of data packets.
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011

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

43. Name three types of connections that can use full duplex.
To create more collision domains and to add more bandwidth for users.
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 Network layer provides routing through an internetwork and logical addressing.

44. Segmentation of a data stream happens at which layer of the OSI model?
00001010.00001011.00001100.01100011
Segments - packets - frames - bits
Router
Transport

45. Which layer is represented by packets?
Switch to switch - host to host - switch to host
Buffering - windowing - congestion avoidance
The Network layer creates packets out of segments handed down from the Transport layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

46. 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?
RJ45 UTP crossover cable.
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.
The Network layer provides logical addressing - typically IP addressing and routing.

47. Which two fields are contained within an IEEE Ethernet frame header?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Decrease the window size.
Buffering - windowing - congestion avoidance
Source and destination MAC address and FCS field

48. Convert 10.11.12.99 to binary format.
The Data Link layer is responsible for the framing of data packets.
To provide a means for the receiver to govern the amount of data sent by the sender.
Packet switching - Packet filtering - Internetwork communication - Path selection
00001010.00001011.00001100.01100011

49. Which layer segments and reassembles data into a data stream?
RJ45 UTP crossover cable.
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

50. This device creates one big collision domain and one large broadcast domain.
183/B7
Hub
Network
3 - 2 - 1 - none