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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 layer supports flow control and sequencing.
Source and destination MAC address and FCS field
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.
The Presentation layer makes sure that data is in a readable format for the Application layer.

2. This layer creates a virtual circuit before transmitting between two end stations.
Source and destination MAC address and FCS field
10101100.00010000.00010100.00110111
Transport
Hub and repeater

3. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Data Link layer is responsible for the framing of data packets.
84:D2:43:B3
Transport
Decrease the window size.

4. This layer uses service access points.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Switch to switch - host to host - switch to host
Data Link (LLC sublayer)
Source and destination MAC address and FCS field

5. Logical addressing is used at this layer.
Router
Network
Switch or bridge
Decrease the window size.

6. This device can never run full duplex.
Hub
Hub and repeater
132.210.184.166
Source and destination MAC address and FCS field

7. 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
10101100.00010000.00010100.00110111
To create more collision domains and to add more bandwidth for users.
Segments - packets - frames - bits

8. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
RJ45 UTP crossover cable.
Layer 4
Router

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

10. 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
Transport
10101100.00010000.00010100.00110111
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).

11. Convert 192.168.10.15 to binary format.
Network
CA:F5:83:EB
Router
11000000.10101000.00001010.00001111

12. Convert 10.11.12.99 to binary format.
Transport
To create more collision domains and to add more bandwidth for users.
Hub
00001010.00001011.00001100.01100011

13. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Data Link layer frames packets received from the Network layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Presentation layer makes sure that data is in a readable format for the Application layer.
84:D2:43:B3

14. Which layer is represented by packets?
Transport
00001010.00001011.00001100.01100011
The Network layer creates packets out of segments handed down from the Transport layer.
Hub

15. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Router
Segments - packets - frames - bits
RJ45 UTP crossover cable.
The Network layer provides routing through an internetwork and logical addressing.

16. When data is encapsulated - which is the correct order?
11000000.10101000.00001010.00001111
Data - segment - packet - frame - bit
Segments - packets - frames - bits
Router

17. What type of RJ45 UTP cable is used between switches?
11000000.10101000.00001010.00001111
3 - 2 - 1 - none
RJ45 UTP crossover cable.
Network

18. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
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.
The Data Link layer is responsible for the framing of data packets.
D8:1B:3D:76

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

20. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link (LLC sublayer)
Data - segment - packet - frame - bit
183/B7

21. 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?
183/B7
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub and repeater
The Transport layer user virtual circuits to create a reliable connection between two hosts.

22. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
To create more collision domains and to add more bandwidth for users.
Switch or bridge
Layer 4

23. 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 Link & Physical
Buffering - windowing - congestion avoidance
Decrease the window size.
The Data Link layer frames packets received from the Network layer.

24. This device creates one big collision domain and one large broadcast domain.
CA:F5:83:EB
The Transport layer segments user data.
RJ45 UTP crossover cable.
Hub

25. This device can measure the distance to a remote network.
Router
Data Link & Physical
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link

26. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Bridge or switch
To create more collision domains and to add more bandwidth for users.
Layer 4
3 - 2 - 1 - none

27. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at 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.
Router
3 - 2 - 1 - none
11000000.10101000.00001010.00001111

28. This device uses hardware addresses to filter a network.
Bridge or switch
Router
48 bits (6 bytes)
D8:1B:3D:76

29. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
84:D2:43:B3
Network
The Session layer sets up - maintains - and terminates sessions between applications.
RJ45 UTP crossover cable.

30. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Network layer provides routing through an internetwork and logical addressing.
Data Link
204.51.170.85
The Transport layer user virtual circuits to create a reliable connection between two hosts.

31. Name three types of connections that can use full duplex.
Decrease the window size.
Switch to switch - host to host - switch to host
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.

32. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Network layer provides logical addressing - typically IP addressing and routing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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.
Data Link (LLC sublayer)

33. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Network layer provides routing through an internetwork and logical addressing.
Switch or bridge
183/B7
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

34. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Data Link (LLC sublayer)
CA:F5:83:EB
Buffering - windowing - congestion avoidance
The Network layer provides logical addressing - typically IP addressing and routing.

35. 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?
Segments - packets - frames - bits
Router
132.210.184.166
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

36. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
To create more collision domains and to add more bandwidth for users.
204.51.170.85
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

37. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Transport layer segments user data.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link (LLC sublayer)
Decrease the window size.

38. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Fiber-opticcable
Network
3 - 2 - 1 - none

39. This device breaks up collision domains and broadcast domains.
3 - 2 - 1 - none
Switch or bridge
Router
Network

40. 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.
Network
RJ45 UTP crossover cable.
Hub and repeater

41. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Segments - packets - frames - bits
Hub
132.210.184.166
Data Link & Physical

42. This device sends and receives information about the Network layer.
Hub
Buffering - windowing - congestion avoidance
Router
48 bits (6 bytes)

43. Convert 172.16.20.55 to binary format.
Decrease the window size.
The Transport layer segments user data.
Hub and repeater
10101100.00010000.00010100.00110111

44. Which layer is represented by segments?
Router
The Transport layer segments user data.
To provide a means for the receiver to govern the amount of data sent by the sender.
CA:F5:83:EB

45. Which layer is represented by bits?
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub and repeater
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

46. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
RJ45 UTP rolled cable.
Hub and repeater
Router
The Data Link layer frames packets received from the Network layer.

47. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Switch or bridge
D8:1B:3D:76
The Session layer sets up - maintains - and terminates sessions between applications.
The Physical layer is responsible for the electrical and mechanical connections between devices.

48. Which of the following are 3 common types of flow control?
Router
Data Link (LLC sublayer)
Buffering - windowing - congestion avoidance
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.

49. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Data Link (LLC sublayer)
Buffering - windowing - congestion avoidance
The Physical layer is responsible for the electrical and mechanical connections between devices.

50. Segmentation of a data stream happens at which layer of the OSI model?
Transport
Network
132.210.184.166
The Network layer creates packets out of segments handed down from the Transport layer.