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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. 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 Session layer sets up - maintains - and terminates sessions between applications.
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.

2. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
48 bits (6 bytes)
Layer 4
CA:F5:83:EB
To provide a means for the receiver to govern the amount of data sent by the sender.

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

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4. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Data Link
204.51.170.85
Switch or bridge

5. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
3 - 2 - 1 - none
The Session layer sets up - maintains - and terminates sessions between applications.
Fiber-opticcable
Data - segment - packet - frame - bit

6. 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?
11000000.10101000.00001010.00001111
Layer 4
Decrease the window size.
CA:F5:83:EB

7. 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
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).
The Network layer provides logical addressing - typically IP addressing and routing.
To create more collision domains and to add more bandwidth for users.
The Data Link layer frames packets received from the Network layer.

8. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
The Transport layer segments user data.
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 rolled cable.
The Physical layer is responsible for the electrical and mechanical connections between devices.

9. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Presentation layer makes sure that data is in a readable format for the Application layer.
84:D2:43:B3
Switch or bridge
The Data Link layer is responsible for the framing of data packets.

10. This device can never run full duplex.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub
183/B7
Data Link

11. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Switch or bridge
Hub
198.211.57.209
Network

12. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
The Network layer creates packets out of segments handed down from the Transport layer.
204.51.170.85
3 - 2 - 1 - none

13. What is the bit length and expression form of a MAC address?
Fiber-opticcable
48 bits (6 bytes)
84:D2:43:B3
Hub

14. Which layer is represented by packets?
Data - segment - packet - frame - bit
The Network layer creates packets out of segments handed down from the Transport layer.
48 bits (6 bytes)
Network

15. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
To create more collision domains and to add more bandwidth for users.
The Session layer creates sessions between different hosts' applications.
204.51.170.85
Switch to switch - host to host - switch to host

16. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
3 - 2 - 1 - none
Data Link (LLC sublayer)
Segments - packets - frames - bits
Layer 4

17. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
132.210.184.166
The Data Link layer is responsible for the framing of data packets.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport

18. Which layer is represented by bits?
Segments - packets - frames - bits
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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.
RJ45 UTP rolled cable.

19. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
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.
RJ45 UTP crossover cable.
11000000.10101000.00001010.00001111

20. This layer supports flow control and sequencing.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
132.210.184.166
Transport
Router

21. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Data Link
3 - 2 - 1 - none
48 bits (6 bytes)
Transport

22. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
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
132.210.184.166
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 create more collision domains and to add more bandwidth for users.

23. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Data Link (LLC sublayer)
183/B7
Transport
Fiber-opticcable

24. What are two purposes for segmentation with a bridge?
The Network layer creates packets out of segments handed down from the Transport layer.
Decrease the window size.
To create more collision domains and to add more bandwidth for users.
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.

25. Convert 192.168.10.15 to binary format.
48 bits (6 bytes)
Buffering - windowing - congestion avoidance
The Physical layer is responsible for the electrical and mechanical connections between devices.
11000000.10101000.00001010.00001111

26. Convert 10.11.12.99 to binary format.
Data - segment - packet - frame - bit
The Data Link layer is responsible for the framing of data packets.
00001010.00001011.00001100.01100011
To create more collision domains and to add more bandwidth for users.

27. This device can measure the distance to a remote network.
Data - segment - packet - frame - bit
Transport
Segments - packets - frames - bits
Router

28. What type of RJ45 UTP cable is used between switches?
Packet switching - Packet filtering - Internetwork communication - Path selection
RJ45 UTP crossover cable.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Switch to switch - host to host - switch to host

29. This device breaks up collision domains and broadcast domains.
Buffering - windowing - congestion avoidance
Transport
Router
48 bits (6 bytes)

30. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
3 - 2 - 1 - none
D8:1B:3D:76
204.51.170.85
The Network layer provides logical addressing - typically IP addressing and routing.

31. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Hub
Transport
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 Data Link layer frames packets received from the Network layer.

32. This device sends and receives information about the Network layer.
Switch or bridge
Data Link (LLC sublayer)
3 - 2 - 1 - none
Router

33. This layer creates a virtual circuit before transmitting between two end stations.
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 - segment - packet - frame - bit
Transport
Source and destination MAC address and FCS field

34. Convert 172.16.20.55 to binary format.
The Session layer creates sessions between different hosts' applications.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
To create more collision domains and to add more bandwidth for users.
10101100.00010000.00010100.00110111

35. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
Source and destination MAC address and FCS field
Switch or bridge
Decrease the window size.

36. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link
183/B7
CA:F5:83:EB

37. Segmentation of a data stream happens at which layer of the OSI model?
The Session layer creates sessions between different hosts' applications.
The Presentation layer makes sure that data is in a readable format for the Application 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
Transport

38. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
84:D2:43:B3
The Data Link layer is responsible for the framing of data packets.
Switch or bridge

39. Which layer is represented by segments?
10101100.00010000.00010100.00110111
D8:1B:3D:76
RJ45 UTP rolled cable.
The Transport layer segments user data.

40. This device uses hardware addresses to filter a network.
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.
Data Link & Physical
Bridge or switch
The Session layer sets up - maintains - and terminates sessions between applications.

41. Ethernet is defined at these layers.
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.
Router
00001010.00001011.00001100.01100011
Data Link & Physical

42. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub and repeater
Hub
Data Link & Physical

43. 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.
3 - 2 - 1 - none
Router
Data Link

44. Name three types of connections that can use full duplex.
The Session layer sets up - maintains - and terminates sessions between applications.
Network
Transport
Switch to switch - host to host - switch to host

45. Which layer is responsible for creating - managing - and terminating sessions between applications?
Data Link & Physical
The Data Link layer frames packets received from the Network layer.
00001010.00001011.00001100.01100011
The Session layer sets up - maintains - and terminates sessions between applications.

46. 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 Network layer creates packets out of segments handed down from the Transport layer.
204.51.170.85
Data Link
The Transport layer user virtual circuits to create a reliable connection between two hosts.

47. This layer uses service access points.
RJ45 UTP crossover cable.
The Transport layer segments user data.
Transport
Data Link (LLC sublayer)

48. Name four router functions.
Switch or bridge
Source and destination MAC address and FCS field
Data Link & Physical
Packet switching - Packet filtering - Internetwork communication - Path selection

49. 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.
RJ45 UTP rolled cable.
204.51.170.85
132.210.184.166

50. Which layer segments and reassembles data into a data stream?
D8:1B:3D:76
Transport
84:D2:43:B3
Network