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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. 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.
D8:1B:3D:76
183/B7
The Network layer creates packets out of segments handed down from the Transport layer.

2. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for the electrical and mechanical connections between devices.

3. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Network layer creates packets out of segments handed down from the Transport layer.
Switch or bridge
Fiber-opticcable
Bridge or switch

4. What are two purposes for segmentation with a bridge?
The Data Link layer frames packets received from the Network layer.
The Network layer provides routing through an internetwork and logical addressing.
Transport
To create more collision domains and to add more bandwidth for users.

5. What type of RJ45 UTP cable is used between switches?
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.
Transport
To create more collision domains and to add more bandwidth for users.

6. Name three types of connections that can use full duplex.
183/B7
Transport
The Data Link layer is responsible for the framing of data packets.
Switch to switch - host to host - switch to host

7. Segmentation of a data stream happens at which layer of the OSI model?
Decrease the window size.
The Network layer provides routing through an internetwork and logical addressing.
Data Link
Transport

8. At which layer is routing implemented - enabling connections and path selection between two end systems?
Segments - packets - frames - bits
The Session layer sets up - maintains - and terminates sessions between applications.
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.

9. Logical addressing is used at this layer.
Network
Data Link & Physical
Hub and repeater
To create more collision domains and to add more bandwidth for users.

10. This device uses hardware addresses to filter a network.
To provide a means for the receiver to govern the amount of data sent by the sender.
Bridge or switch
RJ45 UTP rolled cable.
183/B7

11. Which two fields are contained within an IEEE Ethernet frame header?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link (LLC sublayer)
Source and destination MAC address and FCS field
Network

12. Ethernet is defined at these layers.
Data Link & Physical
The Physical layer is responsible for the electrical and mechanical connections between devices.
Layer 4
Data Link

13. Which layer provides logical addressing that routers will use for path determination?
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.
RJ45 UTP rolled cable.
Transport

14. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Data Link
Network
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Decrease the window size.

15. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data - segment - packet - frame - bit
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.

16. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
Segments - packets - frames - bits
Buffering - windowing - congestion avoidance
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.

17. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Presentation layer makes sure that data is in a readable format for the Application layer.
11000000.10101000.00001010.00001111

18. 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
Network
132.210.184.166
198.211.57.209

19. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Network
Transport
Segments - packets - frames - bits
D8:1B:3D:76

20. 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?
RJ45 UTP crossover cable.
Router
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Network

21. This device sends and receives information about the Network layer.
Router
The Presentation layer makes sure that data is in a readable format for the Application layer.
00001010.00001011.00001100.01100011
Transport

22. Convert 192.168.10.15 to binary format.
D8:1B:3D:76
The Network layer provides logical addressing - typically IP addressing and routing.
11000000.10101000.00001010.00001111
10101100.00010000.00010100.00110111

23. 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
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport

24. Convert 172.16.20.55 to binary format.
3 - 2 - 1 - none
Buffering - windowing - congestion avoidance
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).
10101100.00010000.00010100.00110111

25. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Switch or bridge
Buffering - windowing - congestion avoidance
Layer 4
Data Link

26. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Data - segment - packet - frame - bit
The Session layer sets up - maintains - and terminates sessions between applications.
Decrease the window size.
Segments - packets - frames - bits

27. Which layer is represented by bits?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Router
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

28. This layer supports flow control and sequencing.
Transport
Data Link (LLC sublayer)
132.210.184.166
The Network layer provides logical addressing - typically IP addressing and routing.

29. Which layer is represented by segments?
Data Link & Physical
Hub
The Transport layer segments user data.
204.51.170.85

30. 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.
204.51.170.85
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

31. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
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.
3 - 2 - 1 - none
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 Physical layer is responsible for transporting 1s and 0s in a digital signal.

32. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub
Transport
Hub and repeater
Fiber-opticcable

33. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
198.211.57.209
Transport
The Network layer creates packets out of segments handed down from the Transport layer.
204.51.170.85

34. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
132.210.184.166
Source and destination MAC address and FCS field
Layer 4
198.211.57.209

35. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Session layer creates sessions between different hosts' applications.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub
84:D2:43:B3

36. This device can never run full duplex.
The Transport layer segments user data.
Hub
The Network layer provides logical addressing - typically IP addressing and routing.
To create more collision domains and to add more bandwidth for users.

37. 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
Network
Source and destination MAC address and FCS field
Router

38. When data is encapsulated - which is the correct order?
204.51.170.85
Bridge or switch
Data - segment - packet - frame - bit
48 bits (6 bytes)

39. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Decrease the window size.
CA:F5:83:EB

40. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Transport
RJ45 UTP rolled cable.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Switch or bridge

41. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Data Link
CA:F5:83:EB
84:D2:43:B3
Data Link & Physical

42. Which of the following are 3 common types of flow control?
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
Buffering - windowing - congestion avoidance
Router

43. 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 Data Link layer is responsible for the framing of data packets.
The Session layer creates sessions between different hosts' applications.
Bridge or switch

44. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Network layer provides logical addressing - typically IP addressing and routing.
The Data Link layer is responsible for the framing of data packets.
Hub
198.211.57.209

45. 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?
D8:1B:3D:76
Decrease the window size.
Network
RJ45 UTP rolled cable.

46. What is the bit length and expression form of a MAC address?
132.210.184.166
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
11000000.10101000.00001010.00001111
48 bits (6 bytes)

47. Why does the data communication industry use the layered OSI reference model? (Name two)
The Session layer creates sessions between different hosts' applications.
Transport
CA:F5:83:EB
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.

48. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
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
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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

49. This device breaks up collision domains and broadcast domains.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
84:D2:43:B3
Transport
Router

50. Which layer is represented by frames?
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).
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.
Switch to switch - host to host - switch to host
The Data Link layer frames packets received from the Network layer.