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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 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.
Transport
Network
RJ45 UTP rolled cable.

2. Which layer segments and reassembles data into a data stream?
Transport
Switch or bridge
48 bits (6 bytes)
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.

3. This device uses hardware addresses to filter a network.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides logical addressing - typically IP addressing and routing.
Bridge or switch
Layer 4

4. This device breaks up collision domains and broadcast domains.
Router
Segments - packets - frames - bits
84:D2:43:B3
Data Link

5. This layer uses service access points.
Router
Data Link (LLC sublayer)
48 bits (6 bytes)
The Transport layer segments user data.

6. This device creates one big collision domain and one large broadcast domain.
Hub
CA:F5:83:EB
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).
The Data Link layer frames packets received from the Network layer.

7. Convert 172.16.20.55 to binary 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).
Router
The Transport layer segments user data.
10101100.00010000.00010100.00110111

8. When data is encapsulated - which is the correct order?
198.211.57.209
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Decrease the window size.
Data - segment - packet - frame - bit

9. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
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.
RJ45 UTP crossover cable.
Layer 4

10. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
204.51.170.85
Switch to switch - host to host - switch to host
Fiber-opticcable
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

11. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Switch to switch - host to host - switch to host
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.
198.211.57.209

12. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
Hub
Data Link (LLC sublayer)
Fiber-opticcable

13. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Decrease the window size.
Router
183/B7

14. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Fiber-opticcable
Bridge or switch
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.
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

15. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Hub
CA:F5:83:EB
Router
The Data Link layer is responsible for the framing of data packets.

16. Convert 192.168.10.15 to binary format.
Data - segment - packet - frame - bit
11000000.10101000.00001010.00001111
RJ45 UTP crossover cable.
Switch or bridge

17. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Switch or bridge
204.51.170.85
Data - segment - packet - frame - bit
D8:1B:3D:76

18. This device can never run full duplex.
The Transport layer segments user data.
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Session layer creates sessions between different hosts' applications.

19. Which of the following are 3 common types of flow control?
Router
Transport
Buffering - windowing - congestion avoidance
84:D2:43:B3

20. 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.
183/B7
00001010.00001011.00001100.01100011
CA:F5:83:EB

21. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Session layer sets up - maintains - and terminates sessions between applications.
Hub and repeater
Router
Hub

22. Which layer is represented by packets?
Transport
Router
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.

23. This device sends and receives information about the Network layer.
Data Link (LLC sublayer)
Hub
Router
Bridge or switch

24. 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?
Data Link (LLC sublayer)
CA:F5:83:EB
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

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.
Router
To provide a means for the receiver to govern the amount of data sent by the sender.
198.211.57.209

26. This layer creates a virtual circuit before transmitting between two end stations.
Transport
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.
Packet switching - Packet filtering - Internetwork communication - Path selection

27. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Fiber-opticcable
The Data Link layer frames packets received from the Network layer.
Layer 4
84:D2:43:B3

28. Why does the data communication industry use the layered OSI reference model? (Name two)
198.211.57.209
Network
Switch to switch - host to host - switch to host
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.

29. 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.
204.51.170.85
Data Link & Physical
D8:1B:3D:76

30. Name four router functions.
Fiber-opticcable
11000000.10101000.00001010.00001111
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.
Packet switching - Packet filtering - Internetwork communication - Path selection

31. 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).
The Data Link layer is responsible for the framing of data packets.
Router
Transport

32. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
Packet switching - Packet filtering - Internetwork communication - Path selection
To provide a means for the receiver to govern the amount of data sent by the sender.
D8:1B:3D:76

33. Which layer is represented by bits?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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.

34. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Data Link layer is responsible for the framing of data packets.
Network
Switch to switch - host to host - switch to host
204.51.170.85

35. This device can measure the distance to a remote network.
The Physical layer is responsible for the electrical and mechanical connections between devices.
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).
132.210.184.166
Router

36. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Packet switching - Packet filtering - Internetwork communication - Path selection
The Session layer sets up - maintains - and terminates sessions between applications.
00001010.00001011.00001100.01100011

37. 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?
10101100.00010000.00010100.00110111
The Transport layer user virtual circuits to create a reliable connection between two hosts.
RJ45 UTP crossover cable.
The Presentation layer makes sure that data is in a readable format for the Application layer.

38. This layer supports flow control and sequencing.
11000000.10101000.00001010.00001111
Transport
Layer 4
Router

39. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
Data Link & Physical
Segments - packets - frames - bits
Router

40. Which layer is represented by segments?
Data - segment - packet - frame - bit
Data Link
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 Transport layer segments user data.

41. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
3 - 2 - 1 - none
D8:1B:3D:76

42. What type of RJ45 UTP cable is used between switches?
Transport
84:D2:43:B3
RJ45 UTP crossover cable.
Transport

43. Which layer is represented by frames?
The Presentation layer makes sure that data is in a readable format for the Application layer.
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.
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).

44. Name three types of connections that can use full duplex.
The Network layer provides routing through an internetwork and logical addressing.
Segments - packets - frames - bits
84:D2:43:B3
Switch to switch - host to host - switch to host

45. Which layer is responsible for creating - managing - and terminating sessions between applications?
Layer 4
The Network layer provides routing through an internetwork and logical addressing.
The Session layer sets up - maintains - and terminates sessions between applications.
183/B7

46. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
Buffering - windowing - congestion avoidance
The Physical layer is responsible for the electrical and mechanical connections between devices.
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.

47. What is the bit length and expression form of a MAC address?
D8:1B:3D:76
Router
Hub
48 bits (6 bytes)

48. What is the purpose of flow control?
Bridge or switch
Data Link & Physical
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link

49. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
CA:F5:83:EB
Data Link
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

50. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
132.210.184.166
183/B7
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.