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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 many smaller collision domains - but the network is still one large broadcast domain.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Switch or bridge
Data - segment - packet - frame - bit
Layer 4

2. Which layer is represented by frames?
D8:1B:3D:76
Router
10101100.00010000.00010100.00110111
The Data Link layer frames packets received from the Network layer.

3. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
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.

4. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Transport
198.211.57.209
RJ45 UTP crossover cable.

5. Name three types of connections that can use full duplex.
132.210.184.166
Data Link (LLC sublayer)
RJ45 UTP rolled cable.
Switch to switch - host to host - switch to host

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

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

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8. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
To provide a means for the receiver to govern the amount of data sent by the sender.
Segments - packets - frames - bits
Hub and repeater
Decrease the window size.

9. This device can never run full duplex.
Decrease the window size.
Router
Hub
Data - segment - packet - frame - bit

10. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Segments - packets - frames - bits
Data - segment - packet - frame - bit
Buffering - windowing - congestion avoidance
The Data Link layer is responsible for the framing of data packets.

11. What is the purpose of flow control?
198.211.57.209
Network
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub

12. Ethernet is defined at these layers.
132.210.184.166
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
Data Link & Physical
The Network layer provides routing through an internetwork and logical addressing.

13. Segmentation of a data stream happens at which layer of the OSI model?
Transport
The Network layer provides routing through an internetwork and logical addressing.
The Network layer provides logical addressing - typically IP addressing and routing.
Fiber-opticcable

14. Which layer is represented by bits?
Hub
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Switch to switch - host to host - switch to host
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).

15. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
Hub
Transport
Fiber-opticcable

16. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
To create more collision domains and to add more bandwidth for users.
183/B7
Fiber-opticcable
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

17. Logical addressing is used at this layer.
Transport
Network
198.211.57.209
The Network layer creates packets out of segments handed down from the Transport layer.

18. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
Router
Bridge or switch
RJ45 UTP crossover cable.

19. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Source and destination MAC address and FCS field
RJ45 UTP rolled cable.
Decrease the window size.
To provide a means for the receiver to govern the amount of data sent by the sender.

20. This device can measure the distance to a remote network.
204.51.170.85
Router
The Network layer creates packets out of segments handed down from the Transport layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.

21. Which two fields are contained within an IEEE Ethernet frame header?
To provide a means for the receiver to govern the amount of data sent by the sender.
Source and destination MAC address and FCS field
The Session layer sets up - maintains - and terminates sessions between applications.
Data Link (LLC sublayer)

22. This device creates one big collision domain and one large broadcast domain.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data - segment - packet - frame - bit
Hub
Data Link (LLC sublayer)

23. This layer supports flow control and sequencing.
Network
Transport
Hub and repeater
The Network layer creates packets out of segments handed down from the Transport layer.

24. When data is encapsulated - which is the correct order?
Router
Hub
Decrease the window size.
Data - segment - packet - frame - bit

25. This device breaks up collision domains and broadcast domains.
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.
Router
The Transport layer segments user data.

26. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Transport
84:D2:43:B3
11000000.10101000.00001010.00001111
183/B7

27. Which layer provides logical addressing that routers will use for path determination?
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.
The Session layer creates sessions between different hosts' applications.
The Network layer provides logical addressing - typically IP addressing and routing.

28. 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.
Bridge or switch
Hub
183/B7

29. What type of RJ45 UTP cable is used between switches?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport
RJ45 UTP crossover cable.
To create more collision domains and to add more bandwidth for users.

30. At which layer is routing implemented - enabling connections and path selection between two end systems?
10101100.00010000.00010100.00110111
The Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP crossover cable.
The Data Link layer frames packets received from the Network layer.

31. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
198.211.57.209
The Physical layer is responsible for the electrical and mechanical connections between devices.
48 bits (6 bytes)
To create more collision domains and to add more bandwidth for users.

32. 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.
Bridge or switch
Data - segment - packet - frame - bit
Network

33. 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.
The Session layer sets up - maintains - and terminates sessions between applications.
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
Data Link

34. What is the bit length and expression form of a MAC address?
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
48 bits (6 bytes)
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link & Physical

35. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Segments - packets - frames - bits
3 - 2 - 1 - none
Hub and repeater
The Physical layer is responsible for the electrical and mechanical connections between devices.

36. 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?
Network
The Presentation layer makes sure that data is in a readable format for the Application layer.
Segments - packets - frames - bits
Decrease the window size.

37. Which layer is represented by packets?
Bridge or switch
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 Network layer creates packets out of segments handed down from the Transport layer.
Switch to switch - host to host - switch to host

38. This layer uses service access points.
Data Link
Source and destination MAC address and FCS field
Data Link (LLC sublayer)
Layer 4

39. 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
Hub
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

40. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Network layer creates packets out of segments handed down from the Transport layer.
CA:F5:83:EB
84:D2:43:B3
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. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
198.211.57.209
Hub

42. This device sends and receives information about the Network layer.
The Network layer creates packets out of segments handed down from the Transport layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.

43. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
183/B7
Router
132.210.184.166
84:D2:43:B3

44. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
Buffering - windowing - congestion avoidance
The Physical layer is responsible for the electrical and mechanical connections between devices.
Bridge or switch

45. This layer creates a virtual circuit before transmitting between two end stations.
To create more collision domains and to add more bandwidth for users.
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
The Data Link layer frames packets received from the Network layer.

46. 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.
183/B7
Network
Transport

47. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
00001010.00001011.00001100.01100011
D8:1B:3D:76
RJ45 UTP crossover cable.
Network

48. Convert 192.168.10.15 to binary format.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
11000000.10101000.00001010.00001111
3 - 2 - 1 - none
183/B7

49. This device uses hardware addresses to filter a network.
Transport
Network
Bridge or switch
The Transport layer segments user data.

50. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
198.211.57.209
The Network layer creates packets out of segments handed down from the Transport layer.
RJ45 UTP rolled cable.
The Presentation layer makes sure that data is in a readable format for the Application layer.