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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. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
The Data Link layer frames packets received from the Network layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
183/B7

2. Which layer segments and reassembles data into a data stream?
The Network layer provides routing through an internetwork and logical addressing.
Data - segment - packet - frame - bit
Transport
Router

3. This device creates one big collision domain and one large broadcast domain.
CA:F5:83:EB
Switch to switch - host to host - switch to host
The Network layer provides logical addressing - typically IP addressing and routing.
Hub

4. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
RJ45 UTP crossover cable.
204.51.170.85
Router

5. Convert 10.11.12.99 to binary format.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Data Link layer is responsible for the framing of data packets.
00001010.00001011.00001100.01100011
Network

6. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Network
48 bits (6 bytes)
183/B7

7. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
183/B7
3 - 2 - 1 - none
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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).

8. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
Layer 4
Transport
Router

9. Name four router functions.
The Data Link layer frames packets received from the Network layer.
84:D2:43:B3
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub and repeater

10. 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.
84:D2:43:B3
Transport
The Session layer sets up - maintains - and terminates sessions between applications.

11. Which layer is represented by bits?
D8:1B:3D:76
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub

12. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
132.210.184.166
204.51.170.85
183/B7
The Network layer provides routing through an internetwork and logical addressing.

13. This device breaks up collision domains and broadcast domains.
RJ45 UTP crossover cable.
CA:F5:83:EB
198.211.57.209
Router

14. At which layer is routing implemented - enabling connections and path selection between two end systems?
Data Link & Physical
Data Link (LLC sublayer)
The Network layer provides routing through an internetwork and logical addressing.
To provide a means for the receiver to govern the amount of data sent by the sender.

15. Ethernet is defined at these layers.
84:D2:43:B3
Buffering - windowing - congestion avoidance
Source and destination MAC address and FCS field
Data Link & Physical

16. Which layer is represented by packets?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Network layer provides routing through an internetwork and logical addressing.
Data Link & Physical
The Network layer creates packets out of segments handed down from the Transport layer.

17. What is the purpose of flow control?
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.
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
Switch or bridge

18. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
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.
Data Link

19. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Fiber-opticcable
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.

20. What is the bit length and expression form of a MAC address?
84:D2:43:B3
48 bits (6 bytes)
Data Link (LLC sublayer)
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

21. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
198.211.57.209
00001010.00001011.00001100.01100011
The Transport layer segments user data.

22. This device sends and receives information about the Network layer.
Router
10101100.00010000.00010100.00110111
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link (LLC sublayer)

23. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport
Source and destination MAC address and FCS field

24. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Transport
Decrease the window size.
The Network layer provides logical addressing - typically IP addressing and routing.
RJ45 UTP rolled cable.

25. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
198.211.57.209
RJ45 UTP crossover cable.
Bridge or switch

26. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Hub and repeater
Decrease the window size.
Fiber-opticcable
Transport

27. 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 Presentation layer makes sure that data is in a readable format for the Application layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Bridge or switch
204.51.170.85

28. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
Router
The Transport layer segments user data.
Router

29. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer provides logical addressing - typically IP addressing and routing.
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
Router

30. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
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).
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Buffering - windowing - congestion avoidance

31. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
D8:1B:3D:76
The Data Link layer is responsible for the framing of data packets.
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport

32. This layer uses service access points.
Data Link & Physical
Layer 4
Data Link (LLC sublayer)
10101100.00010000.00010100.00110111

33. Which layer specifies voltage - wire speed - and pinout cables and moves bits 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 - segment - packet - frame - bit
84:D2:43:B3
The Physical layer is responsible for the electrical and mechanical connections between devices.

34. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Data Link layer frames packets received from the Network layer.
Hub and repeater
Transport
Router

35. 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
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Network layer provides logical addressing - typically IP addressing and routing.
To provide a means for the receiver to govern the amount of data sent by the sender.
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).

36. Which layer is represented by segments?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Segments - packets - frames - bits
Hub
The Transport layer segments user data.

37. Which layer is represented by frames?
Network
Network
The Data Link layer frames packets received from the Network layer.
00001010.00001011.00001100.01100011

38. 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?
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
Router
Decrease the window size.

39. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Decrease the window size.
3 - 2 - 1 - none
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

40. Name three types of connections that can use full duplex.
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
RJ45 UTP crossover cable.
Switch to switch - host to host - switch to host
The Data Link layer frames packets received from the Network layer.

41. This layer supports flow control and sequencing.
The Session layer sets up - maintains - and terminates sessions between applications.
Decrease the window size.
10101100.00010000.00010100.00110111
Transport

42. Which layer is responsible for creating - managing - and terminating sessions between applications?
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Layer 4
The Session layer sets up - maintains - and terminates sessions between applications.

43. This device uses hardware addresses to filter a network.
Bridge or switch
Hub
10101100.00010000.00010100.00110111
Network

44. Which layer provides logical addressing that routers will use for path determination?
Transport
00001010.00001011.00001100.01100011
3 - 2 - 1 - none
The Network layer provides logical addressing - typically IP addressing and routing.

45. Logical addressing is used at this layer.
Data Link
Hub and repeater
The Physical layer is responsible for the electrical and mechanical connections between devices.
Network

46. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Hub
Switch or bridge
The Data Link layer is responsible for the framing of data packets.
The Session layer creates sessions between different hosts' applications.

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

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48. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
The Physical layer is responsible for the electrical and mechanical connections between devices.
D8:1B:3D:76
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.

49. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
132.210.184.166
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.
3 - 2 - 1 - none

50. Why does the data communication industry use the layered OSI reference model? (Name two)
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer provides logical addressing - typically IP addressing and routing.
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
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.