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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 are two purposes for segmentation with a bridge?
Network
To create more collision domains and to add more bandwidth for users.
Router
Hub

2. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Data Link & Physical
48 bits (6 bytes)
Data Link (LLC sublayer)

3. Which layer segments and reassembles data into a data stream?
The Network layer provides routing through an internetwork and logical addressing.
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.
Transport

4. This layer supports flow control and sequencing.
Data Link (LLC sublayer)
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
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

5. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Switch or bridge
Layer 4
Hub
Network

6. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
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
00001010.00001011.00001100.01100011
Bridge or switch

7. Convert 10.11.12.99 to binary format.
3 - 2 - 1 - none
11000000.10101000.00001010.00001111
84:D2:43:B3
00001010.00001011.00001100.01100011

8. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Data Link (LLC sublayer)
00001010.00001011.00001100.01100011
204.51.170.85
RJ45 UTP crossover cable.

9. Which layer is represented by segments?
Buffering - windowing - congestion avoidance
183/B7
Segments - packets - frames - bits
The Transport layer segments user data.

10. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
The Data Link layer is responsible for the framing of data packets.
The Network layer creates packets out of segments handed down from the Transport layer.
Packet switching - Packet filtering - Internetwork communication - Path selection

11. Which layer is represented by bits?
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

12. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Router
Fiber-opticcable
Bridge or switch
Decrease the window size.

13. This device breaks up collision domains and broadcast domains.
Router
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.
132.210.184.166

14. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Data Link (LLC sublayer)
The Session layer sets up - maintains - and terminates sessions between applications.
198.211.57.209
Router

15. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
The Network layer provides logical addressing - typically IP addressing and routing.
D8:1B:3D:76
Buffering - windowing - congestion avoidance
Decrease the window size.

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

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17. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
The Physical layer is responsible for the electrical and mechanical connections between devices.
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.
Hub and repeater

18. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Segments - packets - frames - bits
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Data Link layer is responsible for the framing of data packets.

19. 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
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer segments user data.
RJ45 UTP crossover cable.
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).

20. 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?
204.51.170.85
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Router
48 bits (6 bytes)

21. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Network layer provides routing through an internetwork and logical addressing.
48 bits (6 bytes)
RJ45 UTP rolled cable.
Network

22. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
10101100.00010000.00010100.00110111
Transport
Switch to switch - host to host - switch to host

23. 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.
Router
The Network layer creates packets out of segments handed down from the Transport layer.
11000000.10101000.00001010.00001111

24. At which layer is routing implemented - enabling connections and path selection between two end systems?
198.211.57.209
The Network layer provides routing through an internetwork and logical addressing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Network

25. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Session layer sets up - maintains - and terminates sessions between applications.
Bridge or switch
Buffering - windowing - congestion avoidance

26. When data is encapsulated - which is the correct order?
48 bits (6 bytes)
Router
Data - segment - packet - frame - bit
Segments - packets - frames - bits

27. 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.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Network layer creates packets out of segments handed down from the Transport layer.
Network

28. Convert 192.168.10.15 to binary format.
Hub
11000000.10101000.00001010.00001111
Data Link
Layer 4

29. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
To create more collision domains and to add more bandwidth for users.
RJ45 UTP crossover cable.
Source and destination MAC address and FCS field

30. Convert 172.16.20.55 to binary format.
84:D2:43:B3
Router
Transport
10101100.00010000.00010100.00110111

31. This layer uses service access points.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link (LLC sublayer)
Router
RJ45 UTP crossover cable.

32. Which layer is responsible for creating - managing - and terminating sessions between applications?
3 - 2 - 1 - none
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Session layer sets up - maintains - and terminates sessions between applications.

33. 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.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer provides routing through an internetwork and logical addressing.
Decrease the window size.

34. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
RJ45 UTP rolled cable.
84:D2:43:B3
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

35. Name three types of connections that can use full duplex.
3 - 2 - 1 - none
Switch to switch - host to host - switch to host
The Data Link layer is responsible for the framing of data packets.
204.51.170.85

36. Why does the data communication industry use the layered OSI reference model? (Name two)
Segments - packets - frames - bits
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.
00001010.00001011.00001100.01100011
Data Link & Physical

37. This device can measure the distance to a remote network.
To create more collision domains and to add more bandwidth for users.
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
Router

38. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Fiber-opticcable
Transport
183/B7
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

39. Which layer is represented by packets?
The Network layer provides logical addressing - typically IP addressing and routing.
Router
Transport
The Network layer creates packets out of segments handed down from the Transport layer.

40. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Buffering - windowing - congestion avoidance
To provide a means for the receiver to govern the amount of data sent by the sender.
11000000.10101000.00001010.00001111
Segments - packets - frames - bits

41. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Router
CA:F5:83:EB
10101100.00010000.00010100.00110111
Switch or bridge

42. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
00001010.00001011.00001100.01100011
3 - 2 - 1 - none
Data Link & Physical

43. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
00001010.00001011.00001100.01100011
204.51.170.85
132.210.184.166
84:D2:43:B3

44. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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
CA:F5:83:EB

45. This layer creates a virtual circuit before transmitting between two end stations.
Data Link & Physical
To create more collision domains and to add more bandwidth for users.
48 bits (6 bytes)
Transport

46. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
Packet switching - Packet filtering - Internetwork communication - Path selection
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 Network layer provides logical addressing - typically IP addressing and routing.

47. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data Link (LLC sublayer)
Segments - packets - frames - bits
RJ45 UTP rolled cable.

48. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Transport
D8:1B:3D:76
11000000.10101000.00001010.00001111
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

49. This device uses hardware addresses to filter a network.
11000000.10101000.00001010.00001111
Fiber-opticcable
Bridge or switch
The Transport layer user virtual circuits to create a reliable connection between two hosts.

50. This device can never run full duplex.
Router
183/B7
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Hub