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Cisco Prep

Instructions:

Answer 50 questions in 15 minutes.
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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. What are two purposes for segmentation with a bridge?
Data Link
Switch or bridge
To create more collision domains and to add more bandwidth for users.
Packet switching - Packet filtering - Internetwork communication - Path selection

2. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
00001010.00001011.00001100.01100011
Network
84:D2:43:B3
Router

3. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
00001010.00001011.00001100.01100011
CA:F5:83:EB
Packet switching - Packet filtering - Internetwork communication - Path selection

4. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Router
The Data Link layer is responsible for the framing of data packets.
Data Link
RJ45 UTP crossover cable.

5. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Data Link (LLC sublayer)
Router
Hub and repeater
Bridge or switch

6. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
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.
11000000.10101000.00001010.00001111
Bridge or switch
RJ45 UTP rolled cable.

7. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Transport
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
204.51.170.85

8. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
Router
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.

9. Which layer provides logical addressing that routers will use for path determination?
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.
00001010.00001011.00001100.01100011
132.210.184.166
The Network layer provides logical addressing - typically IP addressing and routing.

10. This layer supports flow control and sequencing.
Hub
Transport
Layer 4
Data Link

11. This device sends and receives information about the Network layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Switch to switch - host to host - switch to host
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router

12. 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
Switch or bridge
Network
D8:1B:3D:76

13. 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.
84:D2:43:B3
The Session layer sets up - maintains - and terminates sessions between applications.
Layer 4

14. This device creates one big collision domain and one large broadcast domain.
The Transport layer segments user data.
Hub
Data Link (LLC sublayer)
48 bits (6 bytes)

15. This layer uses service access points.
Layer 4
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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).
Data Link (LLC sublayer)

16. Why does the data communication industry use the layered OSI reference model? (Name two)
Segments - packets - frames - bits
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.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

17. This device uses hardware addresses to filter a network.
CA:F5:83:EB
The Session layer creates sessions between different hosts' applications.
Bridge or switch
Buffering - windowing - congestion avoidance

18. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
The Data Link layer is responsible for the framing of data packets.
204.51.170.85
Transport
Fiber-opticcable

19. This device breaks up collision domains and broadcast domains.
To provide a means for the receiver to govern the amount of data sent by the sender.
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
Bridge or switch

20. Which layer is represented by segments?
The Data Link layer frames packets received from the Network layer.
CA:F5:83:EB
The Transport layer segments user data.
Router

21. Which layer is represented by packets?
Decrease the window size.
The Network layer creates packets out of segments handed down from the Transport layer.
Network
Fiber-opticcable

22. Convert 192.168.10.15 to binary format.
D8:1B:3D:76
Decrease the window size.
Network
11000000.10101000.00001010.00001111

23. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Network
The Session layer sets up - maintains - and terminates sessions between applications.
Router
3 - 2 - 1 - none

24. 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
Fiber-opticcable
Transport
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).
Decrease the window size.

25. 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.
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link
Data Link (LLC sublayer)

26. 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.
Hub and repeater
198.211.57.209
The Data Link layer frames packets received from the Network layer.

27. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
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.
132.210.184.166
Fiber-opticcable

28. Which layer segments and reassembles data into a data stream?
RJ45 UTP crossover cable.
10101100.00010000.00010100.00110111
Transport
Router

29. 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.
132.210.184.166
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Segments - packets - frames - bits

30. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Switch or bridge
198.211.57.209
3 - 2 - 1 - none
Packet switching - Packet filtering - Internetwork communication - Path selection

31. What is the purpose of flow control?
Bridge or switch
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link
Source and destination MAC address and FCS field

32. Ethernet is defined at these layers.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link & Physical
84:D2:43:B3
10101100.00010000.00010100.00110111

33. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
To create more collision domains and to add more bandwidth for users.
Data Link (LLC sublayer)
Hub

34. Which layer is responsible for creating - managing - and terminating sessions between applications?
Packet switching - Packet filtering - Internetwork communication - Path selection
Router
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer provides routing through an internetwork and logical addressing.

35. 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.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Network layer provides logical addressing - typically IP addressing and routing.
Fiber-opticcable

36. When data is encapsulated - which is the correct order?
11000000.10101000.00001010.00001111
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.
Data - segment - packet - frame - bit

37. This device can never run full duplex.
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub
The Network layer provides routing through an internetwork and logical addressing.
To create more collision domains and to add more bandwidth for users.

38. 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.
D8:1B:3D:76
The Transport layer segments user data.
Transport

39. Which layer is represented by bits?
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.
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
Fiber-opticcable

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

41. 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
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.
204.51.170.85

42. Which layer is represented by frames?
The Data Link layer frames packets received from the Network 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).
Data - segment - packet - frame - bit
Transport

43. Which of the following are 3 common types of flow control?
The Session layer creates sessions between different hosts' applications.
Transport
The Data Link layer frames packets received from the Network layer.
Buffering - windowing - congestion avoidance

44. Name four router functions.
Transport
Segments - packets - frames - bits
Packet switching - Packet filtering - Internetwork communication - Path selection
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

45. 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
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Network

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

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47. Segmentation of a data stream happens at which layer of the OSI model?
Transport
132.210.184.166
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

48. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
To provide a means for the receiver to govern the amount of data sent by the sender.
CA:F5:83:EB
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

49. Which two fields are contained within an IEEE Ethernet frame header?
D8:1B:3D:76
Bridge or switch
Fiber-opticcable
Source and destination MAC address and FCS field

50. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
D8:1B:3D:76
Router
Source and destination MAC address and FCS field

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