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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 creates one big collision domain and one large broadcast domain.
Decrease the window size.
Hub
The Network layer provides logical addressing - typically IP addressing and routing.
The Data Link layer frames packets received from the Network layer.

2. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
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
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.

3. Which of the following are 3 common types of flow control?
Data Link (LLC sublayer)
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Session layer sets up - maintains - and terminates sessions between applications.
Buffering - windowing - congestion avoidance

4. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
3 - 2 - 1 - none
The Network layer provides logical addressing - typically IP addressing and routing.
Bridge or switch

5. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
3 - 2 - 1 - none
Segments - packets - frames - bits
Data Link
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

6. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
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.
Data Link & Physical

7. This layer uses service access points.
Data Link (LLC sublayer)
Router
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

8. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
Router
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

9. Which layer is responsible for creating - managing - and terminating sessions between applications?
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.
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.
Switch or bridge

10. Which layer provides logical addressing that routers will use for path determination?
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
84:D2:43:B3
The Network layer provides logical addressing - typically IP addressing and routing.
Layer 4

11. Name four router functions.
3 - 2 - 1 - none
Packet switching - Packet filtering - Internetwork communication - Path selection
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.

12. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Router
84:D2:43:B3
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.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

13. 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 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 Presentation layer makes sure that data is in a readable format for the Application layer.
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).

14. What is the purpose of flow control?
00001010.00001011.00001100.01100011
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer creates packets out of segments handed down from the Transport layer.
To provide a means for the receiver to govern the amount of data sent by the sender.

15. Ethernet is defined at these layers.
The Data Link layer frames packets received from the Network layer.
Data Link & Physical
CA:F5:83:EB
Router

16. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Data Link & Physical
3 - 2 - 1 - none
Bridge or switch
CA:F5:83:EB

17. 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
Hub
D8:1B:3D:76
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).

18. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
3 - 2 - 1 - none
To create more collision domains and to add more bandwidth for users.
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
The Data Link layer frames packets received from the Network layer.

19. Which layer segments and reassembles data into a data stream?
Data Link
Transport
183/B7
The Transport layer user virtual circuits to create a reliable connection between two hosts.

20. This device can never run full duplex.
Hub
Fiber-opticcable
Transport
Transport

21. 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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router
198.211.57.209

22. This device breaks up collision domains and broadcast domains.
Segments - packets - frames - bits
198.211.57.209
To provide a means for the receiver to govern the amount of data sent by the sender.
Router

23. Which layer is represented by segments?
Data - segment - packet - frame - bit
Transport
Router
The Transport layer segments user data.

24. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Hub
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.
Network

25. 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.
Source and destination MAC address and FCS field
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
Hub and repeater

26. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
RJ45 UTP crossover cable.
The Presentation layer makes sure that data is in a readable format for the Application layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link

27. Name three types of connections that can use full duplex.
Router
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).
Buffering - windowing - congestion avoidance
Switch to switch - host to host - switch to host

28. 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 Data Link layer frames packets received from the Network layer.
00001010.00001011.00001100.01100011

29. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
183/B7
D8:1B:3D:76
The Network layer creates packets out of segments handed down from the Transport layer.
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

30. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
132.210.184.166
Transport
Router
Fiber-opticcable

31. This device uses hardware addresses to filter a network.
Network
The Data Link layer is responsible for the framing of data packets.
Router
Bridge or switch

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

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33. 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).
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
CA:F5:83:EB

34. What are two purposes for segmentation with a bridge?
The Data Link layer is responsible for the framing of data packets.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
To create more collision domains and to add more bandwidth for users.
10101100.00010000.00010100.00110111

35. Which layer is represented by packets?
Router
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer creates packets out of segments handed down from the Transport layer.
Router

36. Logical addressing is used at this layer.
Segments - packets - frames - bits
Network
Decrease the window size.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

37. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
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.
204.51.170.85
Source and destination MAC address and FCS field

38. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
The Physical layer is responsible for the electrical and mechanical connections between devices.
132.210.184.166
Transport
48 bits (6 bytes)

39. This layer creates a virtual circuit before transmitting between two end stations.
Hub and repeater
The Network layer provides logical addressing - typically IP addressing and routing.
84:D2:43:B3
Transport

40. This layer supports flow control and sequencing.
Transport
Source and destination MAC address and FCS field
84:D2:43:B3
Data Link

41. When data is encapsulated - which is the correct order?
204.51.170.85
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Packet switching - Packet filtering - Internetwork communication - Path selection
Data - segment - packet - frame - bit

42. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Fiber-opticcable
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 to switch - host to host - switch to host
Hub and repeater

43. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Transport layer segments user data.
The Network layer provides routing through an internetwork and logical addressing.
Segments - packets - frames - bits
132.210.184.166

44. Convert 172.16.20.55 to binary format.
The Network layer creates packets out of segments handed down from the Transport layer.
Router
10101100.00010000.00010100.00110111
183/B7

45. This device sends and receives information about the Network layer.
Fiber-opticcable
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
3 - 2 - 1 - none
Router

46. This device can measure the distance to a remote network.
The Network layer provides routing through an internetwork and logical addressing.
Router
11000000.10101000.00001010.00001111
The Physical layer is responsible for the electrical and mechanical connections between devices.

47. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
Switch or bridge
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).

48. Convert 10.11.12.99 to binary format.
Data Link (LLC sublayer)
00001010.00001011.00001100.01100011
Hub
Packet switching - Packet filtering - Internetwork communication - Path selection

49. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Buffering - windowing - congestion avoidance
3 - 2 - 1 - none
Hub

50. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Router
Layer 4
00001010.00001011.00001100.01100011