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

2. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Bridge or switch
204.51.170.85
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router

3. Logical addressing is used at this layer.
Data Link
10101100.00010000.00010100.00110111
Router
Network

4. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Network layer creates packets out of segments handed down from the Transport layer.
Transport
Router
Data Link

5. This device can never run full duplex.
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
48 bits (6 bytes)
Hub

6. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Router
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.
To create more collision domains and to add more bandwidth for users.
Transport

7. Ethernet is defined at these layers.
Network
To provide a means for the receiver to govern the amount of data sent by the sender.
The Transport layer segments user data.
Data Link & Physical

8. Which layer provides logical addressing that routers will use for path determination?
10101100.00010000.00010100.00110111
Switch or bridge
11000000.10101000.00001010.00001111
The Network layer provides logical addressing - typically IP addressing and routing.

9. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
D8:1B:3D:76
84:D2:43:B3
The Network layer creates packets out of segments handed down from the Transport layer.
To provide a means for the receiver to govern the amount of data sent by the sender.

10. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Buffering - windowing - congestion avoidance
Network
Switch or bridge
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

11. Which layer segments and reassembles data into a data stream?
Transport
Data Link & Physical
Data - segment - packet - frame - bit
D8:1B:3D:76

12. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Hub
3 - 2 - 1 - none
The Data Link layer is responsible for the framing of data packets.
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).

13. Convert 10.11.12.99 to binary format.
Switch or bridge
D8:1B:3D:76
10101100.00010000.00010100.00110111
00001010.00001011.00001100.01100011

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

15. Which layer is represented by frames?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
10101100.00010000.00010100.00110111
To provide a means for the receiver to govern the amount of data sent by the sender.
The Data Link layer frames packets received from the Network layer.

16. 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?
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).
Packet switching - Packet filtering - Internetwork communication - Path selection
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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

17. This device sends and receives information about the Network layer.
Network
Router
RJ45 UTP crossover cable.
Data Link

18. Name four router functions.
Layer 4
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer segments user data.

19. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
RJ45 UTP rolled cable.
3 - 2 - 1 - none
Router
Switch to switch - host to host - switch to host

20. Which of the following are 3 common types of flow control?
Bridge or switch
Hub
Buffering - windowing - congestion avoidance
D8:1B:3D:76

21. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
204.51.170.85
Router

22. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Transport
48 bits (6 bytes)
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.

23. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
CA:F5:83:EB
Bridge or switch
132.210.184.166
Network

24. Convert 192.168.10.15 to binary format.
Switch to switch - host to host - switch to host
Data Link
11000000.10101000.00001010.00001111
Packet switching - Packet filtering - Internetwork communication - Path selection

25. 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).
RJ45 UTP crossover cable.
D8:1B:3D:76
To create more collision domains and to add more bandwidth for users.

26. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
84:D2:43:B3
Hub and repeater
Buffering - windowing - congestion avoidance
Bridge or switch

27. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
3 - 2 - 1 - none
The Session layer creates sessions between different hosts' applications.
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.

28. What is the purpose of flow control?
84:D2:43:B3
The Session layer sets up - maintains - and terminates sessions between applications.
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport

29. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
3 - 2 - 1 - none
Transport
10101100.00010000.00010100.00110111
Layer 4

30. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
84:D2:43:B3

31. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
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
D8:1B:3D:76

32. This layer uses service access points.
Bridge or switch
RJ45 UTP crossover cable.
Data Link (LLC sublayer)
Router

33. Which layer is responsible for creating - managing - and terminating sessions between applications?
Hub and repeater
198.211.57.209
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Session layer sets up - maintains - and terminates sessions between applications.

34. Name three types of connections that can use full duplex.
Transport
48 bits (6 bytes)
The Network layer provides routing through an internetwork and logical addressing.
Switch to switch - host to host - switch to host

35. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Fiber-opticcable
CA:F5:83:EB
Data Link & Physical
To create more collision domains and to add more bandwidth for users.

36. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Bridge or switch
D8:1B:3D:76
Router
Transport

37. This layer supports flow control and sequencing.
Transport
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.
Fiber-opticcable

38. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
10101100.00010000.00010100.00110111
RJ45 UTP crossover cable.
Data Link & Physical

39. When data is encapsulated - which is the correct order?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data - segment - packet - frame - bit
The Session layer sets up - maintains - and terminates sessions between applications.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

40. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Network
Fiber-opticcable
The Transport layer segments user data.
Decrease the window size.

41. Which layer is represented by bits?
Data Link & Physical
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 Physical layer is responsible for transporting 1s and 0s in a digital signal.
Switch to switch - host to host - switch to host

42. This device can measure the distance to a remote network.
Data - segment - packet - frame - bit
Router
The Network layer creates packets out of segments handed down from the Transport layer.
183/B7

43. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
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.
The Presentation layer makes sure that data is in a readable format for the Application layer.

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

45. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Router
To provide a means for the receiver to govern the amount of data sent by the sender.
D8:1B:3D:76
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

46. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
198.211.57.209
The Transport layer segments user data.
Network
CA:F5:83:EB

47. 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?
Decrease the window size.
204.51.170.85
00001010.00001011.00001100.01100011
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

48. This device creates one big collision domain and one large broadcast domain.
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.
The Data Link layer is responsible for the framing of data packets.
Hub

49. What type of RJ45 UTP cable is used between switches?
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).
Router
RJ45 UTP crossover cable.
Transport

50. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
RJ45 UTP rolled cable.
Segments - packets - frames - bits
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Switch or bridge