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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 can never run full duplex.
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).
Hub
RJ45 UTP rolled cable.
Switch to switch - host to host - switch to host

2. 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.
Segments - packets - frames - bits
Hub and repeater
Hub

3. 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
132.210.184.166
Layer 4

4. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
3 - 2 - 1 - none
Hub and repeater
To create more collision domains and to add more bandwidth for users.
Switch or bridge

5. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
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
Network
Segments - packets - frames - bits

6. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Segments - packets - frames - bits
Hub and repeater
Data Link
Data Link & Physical

7. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
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
Buffering - windowing - congestion avoidance
84:D2:43:B3

8. 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.
Transport
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer provides logical addressing - typically IP addressing and routing.

9. What are two purposes for segmentation with a bridge?
CA:F5:83:EB
Transport
Hub
To create more collision domains and to add more bandwidth for users.

10. This device can measure the distance to a remote network.
Data Link (LLC sublayer)
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
Decrease the window size.

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

12. 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?
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 provide a means for the receiver to govern the amount of data sent by the sender.
Bridge or switch
Decrease the window size.

13. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport
The Data Link layer is responsible for the framing of data packets.

14. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
The Data Link layer is responsible for the framing of data packets.
Layer 4
Transport

15. This layer creates a virtual circuit before transmitting between two end stations.
Router
Transport
Fiber-opticcable
11000000.10101000.00001010.00001111

16. This device breaks up collision domains and broadcast domains.
Layer 4
Router
The Network layer provides logical addressing - typically IP addressing and routing.
To provide a means for the receiver to govern the amount of data sent by the sender.

17. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
132.210.184.166
Switch or bridge
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link (LLC sublayer)

18. Segmentation of a data stream happens at which layer of the OSI model?
The Network layer provides routing through an internetwork and logical addressing.
Transport
Router
Packet switching - Packet filtering - Internetwork communication - Path selection

19. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
183/B7
Segments - packets - frames - bits
10101100.00010000.00010100.00110111
RJ45 UTP rolled cable.

20. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Source and destination MAC address and FCS field
Data Link
3 - 2 - 1 - none
Network

21. 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.
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.
198.211.57.209

22. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
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.
198.211.57.209
Buffering - windowing - congestion avoidance
To create more collision domains and to add more bandwidth for users.

23. Logical addressing is used at this layer.
Network
Transport
Data Link
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.

24. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Data Link
11000000.10101000.00001010.00001111
Router
Layer 4

25. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
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
132.210.184.166
D8:1B:3D:76

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

27. Ethernet is defined at these layers.
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link & Physical
The Data Link layer frames packets received from the Network layer.
204.51.170.85

28. Convert 172.16.20.55 to binary format.
The Transport layer segments user data.
204.51.170.85
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
10101100.00010000.00010100.00110111

29. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Transport
Network
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.

30. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Hub
Transport
Fiber-opticcable
The Network layer creates packets out of segments handed down from the Transport layer.

31. Why does the data communication industry use the layered OSI reference model? (Name two)
Layer 4
Data Link (LLC sublayer)
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.
The Data Link layer frames packets received from the Network layer.

32. This device creates one big collision domain and one large broadcast domain.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub
204.51.170.85
198.211.57.209

33. This layer supports flow control and sequencing.
To provide a means for the receiver to govern the amount of data sent by the sender.
Network
The Network layer provides routing through an internetwork and logical addressing.
Transport

34. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Buffering - windowing - congestion avoidance
3 - 2 - 1 - none

35. Which layer segments and reassembles data into a data stream?
Transport
11000000.10101000.00001010.00001111
Bridge or switch
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

36. 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 Transport layer user virtual circuits to create a reliable connection between two hosts.
The Data Link layer is responsible for the framing of data packets.
Router
The Network layer provides logical addressing - typically IP addressing and routing.

37. Which layer is represented by segments?
RJ45 UTP crossover cable.
The Transport layer segments user data.
The Network layer provides logical addressing - typically IP addressing and routing.
Network

38. Convert 192.168.10.15 to binary format.
Buffering - windowing - congestion avoidance
To provide a means for the receiver to govern the amount of data sent by the sender.
48 bits (6 bytes)
11000000.10101000.00001010.00001111

39. Convert 10.11.12.99 to binary format.
Layer 4
Switch to switch - host to host - switch to host
00001010.00001011.00001100.01100011
Router

40. This layer uses service access points.
Buffering - windowing - congestion avoidance
48 bits (6 bytes)
Network
Data Link (LLC sublayer)

41. Name four router functions.
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
11000000.10101000.00001010.00001111
Buffering - windowing - congestion avoidance

42. This device uses hardware addresses to filter a network.
Router
Router
RJ45 UTP crossover cable.
Bridge or switch

43. Which layer is responsible for creating - managing - and terminating sessions between applications?
00001010.00001011.00001100.01100011
Transport
Bridge or switch
The Session layer sets up - maintains - and terminates sessions between applications.

44. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
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).
3 - 2 - 1 - none
CA:F5:83:EB
11000000.10101000.00001010.00001111

45. Which layer is represented by packets?
Transport
The Network layer creates packets out of segments handed down from the Transport layer.
Transport
Bridge or switch

46. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
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
Fiber-opticcable

47. 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.
Hub and repeater
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport

48. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Physical layer is responsible for the electrical and mechanical connections between devices.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Data Link layer is responsible for the framing of data packets.

49. What is the bit length and expression form of a MAC address?
84:D2:43:B3
48 bits (6 bytes)
Transport
183/B7

50. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
CA:F5:83:EB
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.