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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. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub and repeater
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.

2. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Switch or bridge
183/B7

3. This device can never run full duplex.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Network
Data Link
Hub

4. This device uses hardware addresses to filter a network.
198.211.57.209
The Data Link layer is responsible for the framing of data packets.
The Network layer provides routing through an internetwork and logical addressing.
Bridge or switch

5. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Router
The Data Link layer is responsible for the framing of data packets.
Bridge or switch

6. 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?
Decrease the window size.
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
Fiber-opticcable

7. Why does the data communication industry use the layered OSI reference model? (Name two)
Segments - packets - frames - bits
183/B7
Router
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.

8. This device can measure the distance to a remote network.
Transport
Router
Hub and repeater
Network

9. 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
Packet switching - Packet filtering - Internetwork communication - Path selection
Segments - packets - frames - bits
3 - 2 - 1 - none
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).

10. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Session layer creates sessions between different hosts' applications.
183/B7
The Data Link layer frames packets received from the Network layer.

11. Which layer is represented by segments?
The Transport layer segments user data.
84:D2:43:B3
Bridge or switch
Router

12. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
Switch to switch - host to host - switch to host
Switch or bridge
11000000.10101000.00001010.00001111

13. Which layer segments and reassembles data into a data stream?
Transport
Bridge or switch
Data Link (LLC sublayer)
183/B7

14. This layer uses service access points.
The Transport layer segments user data.
Data Link (LLC sublayer)
The Session layer creates sessions between different hosts' applications.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

15. Which two fields are contained within an IEEE Ethernet frame header?
RJ45 UTP crossover cable.
The Data Link layer is responsible for the framing of data packets.
Segments - packets - frames - bits
Source and destination MAC address and FCS field

16. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Data Link & Physical
183/B7
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

17. Segmentation of a data stream happens at which layer of the OSI model?
Transport
The Transport layer segments user data.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
48 bits (6 bytes)

18. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Data Link layer is responsible for the framing of data packets.
The Network layer creates packets out of segments handed down from the Transport layer.
11000000.10101000.00001010.00001111
Segments - packets - frames - bits

19. 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?
Source and destination MAC address and FCS field
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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

20. 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.
Hub and repeater
Network
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

21. Which layer is represented by packets?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer creates packets out of segments handed down from the Transport layer.
The Network layer provides logical addressing - typically IP addressing and routing.
Data Link

22. Which of the following are 3 common types of flow control?
The Data Link layer is responsible for the framing of data packets.
D8:1B:3D:76
Buffering - windowing - congestion avoidance
Decrease the window size.

23. What type of RJ45 UTP cable is used between switches?
11000000.10101000.00001010.00001111
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer creates packets out of segments handed down from the Transport layer.
RJ45 UTP crossover cable.

24. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Network layer creates packets out of segments handed down from the Transport layer.
Router
Switch or bridge
The Session layer sets up - maintains - and terminates sessions between applications.

25. 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.
Hub and repeater
Data Link
To create more collision domains and to add more bandwidth for users.

26. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
183/B7
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.

27. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
3 - 2 - 1 - none
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.
Buffering - windowing - congestion avoidance

28. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Decrease the window size.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Router
204.51.170.85

29. 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.
RJ45 UTP rolled cable.
3 - 2 - 1 - none
Transport

30. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Network
Layer 4
Packet switching - Packet filtering - Internetwork communication - Path selection
Network

31. This device breaks up collision domains and broadcast domains.
D8:1B:3D:76
Router
CA:F5:83:EB
11000000.10101000.00001010.00001111

32. What is the purpose of flow control?
The Data Link layer frames packets received from the Network layer.
Hub and repeater
Switch or bridge
To provide a means for the receiver to govern the amount of data sent by the sender.

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

34. This layer creates a virtual circuit before transmitting between two end stations.
Hub and repeater
Data Link (LLC sublayer)
Transport
132.210.184.166

35. Convert 172.16.20.55 to binary format.
Transport
3 - 2 - 1 - none
00001010.00001011.00001100.01100011
10101100.00010000.00010100.00110111

36. This device sends and receives information about the Network layer.
Data Link
Router
The Data Link layer is responsible for the framing of data packets.
D8:1B:3D:76

37. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Layer 4
Data - segment - packet - frame - bit
The Network layer creates packets out of segments handed down from the Transport layer.
198.211.57.209

38. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Layer 4
Transport
3 - 2 - 1 - none
Router

39. 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.
00001010.00001011.00001100.01100011
Transport
Source and destination MAC address and FCS field

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

41. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
Hub
Data Link
To create more collision domains and to add more bandwidth for users.

42. Convert 11001010.11110101.10000011.11101011 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.
Network
CA:F5:83:EB
The Physical layer is responsible for the electrical and mechanical connections between devices.

43. Which layer is represented by frames?
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
3 - 2 - 1 - none
The Data Link layer frames packets received from the Network layer.

44. Ethernet is defined at these layers.
Data Link & Physical
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 Session layer sets up - maintains - and terminates sessions between applications.
00001010.00001011.00001100.01100011

45. When data is encapsulated - which is the correct order?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data - segment - packet - frame - bit
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
183/B7

46. 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.
183/B7
D8:1B:3D:76
Bridge or switch

47. Logical addressing is used at this layer.
Transport
Network
84:D2:43:B3
To provide a means for the receiver to govern the amount of data sent by the sender.

48. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
Data Link & Physical
Router
Transport

49. Convert 10.11.12.99 to binary format.
The Session layer creates sessions between different hosts' applications.
00001010.00001011.00001100.01100011
Fiber-opticcable
84:D2:43:B3

50. Name four router functions.
Router
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
Packet switching - Packet filtering - Internetwork communication - Path selection