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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 is the purpose of flow control?
The Data Link layer frames packets received from the Network layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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.

2. Which layer segments and reassembles data into a data stream?
10101100.00010000.00010100.00110111
Layer 4
The Network layer provides logical addressing - typically IP addressing and routing.
Transport

3. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
CA:F5:83:EB
The Network layer provides routing through an internetwork and logical addressing.
Layer 4
Bridge or switch

4. 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.
Source and destination MAC address and FCS field
183/B7
The Presentation layer makes sure that data is in a readable format for the Application layer.

5. This device can never run full duplex.
Transport
Hub
To provide a means for the receiver to govern the amount of data sent by the sender.
198.211.57.209

6. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
204.51.170.85
The Network layer creates packets out of segments handed down from the Transport layer.
Network
Transport

7. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
To create more collision domains and to add more bandwidth for users.
Data Link & Physical
Packet switching - Packet filtering - Internetwork communication - Path selection

8. Ethernet is defined at these layers.
Data Link & Physical
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Source and destination MAC address and FCS field

9. At which layer is routing implemented - enabling connections and path selection between two end systems?
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.
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.
The Network layer provides routing through an internetwork and logical addressing.

10. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
RJ45 UTP rolled cable.
Router
The Network layer creates packets out of segments handed down from the Transport layer.

11. Which layer is represented by bits?
The Transport layer segments user data.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
204.51.170.85
183/B7

12. This layer creates a virtual circuit before transmitting between two end stations.
Switch to switch - host to host - switch to host
The Data Link layer is responsible for the framing of data packets.
Hub
Transport

13. 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?
Hub
Transport
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.

14. Which layer is represented by segments?
Transport
11000000.10101000.00001010.00001111
Data Link
The Transport layer segments user data.

15. This layer uses service access points.
Data Link (LLC sublayer)
To provide a means for the receiver to govern the amount of data sent by the sender.
Router
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.

16. This device can measure the distance to a remote network.
To provide a means for the receiver to govern the amount of data sent by the sender.
11000000.10101000.00001010.00001111
Router
Data Link & Physical

17. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
Packet switching - Packet filtering - Internetwork communication - Path selection
Switch to switch - host to host - switch to host
Data Link & Physical

18. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Network
D8:1B:3D:76
3 - 2 - 1 - none
204.51.170.85

19. This layer supports flow control and sequencing.
Buffering - windowing - congestion avoidance
Transport
The Session layer creates sessions between different hosts' applications.
84:D2:43:B3

20. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Network layer creates packets out of segments handed down from the Transport layer.
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
The Data Link layer frames packets received from the Network layer.

21. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Network
11000000.10101000.00001010.00001111
3 - 2 - 1 - none
The Presentation layer makes sure that data is in a readable format for the Application layer.

22. What are two purposes for segmentation with a bridge?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data Link (LLC sublayer)
To create more collision domains and to add more bandwidth for users.
Network

23. This device breaks up collision domains and broadcast domains.
Switch to switch - host to host - switch to host
Network
198.211.57.209
Router

24. This device creates one big collision domain and one large broadcast domain.
Hub
183/B7
Data Link & Physical
Transport

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

26. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
48 bits (6 bytes)
00001010.00001011.00001100.01100011
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
RJ45 UTP rolled cable.

27. Logical addressing is used at this layer.
RJ45 UTP crossover cable.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Network
Decrease the window size.

28. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Buffering - windowing - congestion avoidance
Data - segment - packet - frame - bit
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 is responsible for the framing of data packets.

29. Which layer is responsible for creating - managing - and terminating sessions between applications?
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.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Network layer provides routing through an internetwork and logical addressing.

30. What type of RJ45 UTP cable is used between switches?
Bridge or switch
The Data Link layer frames packets received from the Network layer.
RJ45 UTP crossover cable.
11000000.10101000.00001010.00001111

31. Which layer provides logical addressing that routers will use for path determination?
00001010.00001011.00001100.01100011
The Network layer provides logical addressing - typically IP addressing and routing.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
48 bits (6 bytes)

32. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Decrease the window size.
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
Segments - packets - frames - bits
Data Link (LLC sublayer)

33. Which layer is represented by frames?
Source and destination MAC address and FCS field
Data Link (LLC sublayer)
3 - 2 - 1 - none
The Data Link layer frames packets received from the Network layer.

34. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
The Session layer creates sessions between different hosts' applications.
Bridge or switch
To create more collision domains and to add more bandwidth for users.

35. Which of the following are 3 common types of flow control?
Switch or bridge
Segments - packets - frames - bits
Buffering - windowing - congestion avoidance
204.51.170.85

36. What is the bit length and expression form of a MAC address?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
183/B7
48 bits (6 bytes)
Router

37. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub and repeater
Fiber-opticcable
The Data Link layer is responsible for the framing of data packets.

38. This device sends and receives information about the Network layer.
Router
Bridge or switch
The Session layer sets up - maintains - and terminates sessions between applications.
Data Link

39. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
204.51.170.85
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Hub and repeater
Router

40. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Hub
Switch or bridge
48 bits (6 bytes)

41. 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?
Layer 4
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link (LLC sublayer)
Data Link

42. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link
48 bits (6 bytes)
The Session layer creates sessions between different hosts' applications.

43. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides logical addressing - typically IP addressing and routing.
Fiber-opticcable

44. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Session layer sets up - maintains - and terminates sessions between applications.
Switch or bridge
Decrease the window size.
204.51.170.85

45. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Buffering - windowing - congestion avoidance
Switch or bridge
Data Link & Physical
132.210.184.166

46. Why does the data communication industry use the layered OSI reference model? (Name two)
The Session layer sets up - maintains - and terminates sessions between applications.
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.
Hub and repeater
Network

47. 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.
The Network layer provides logical addressing - typically IP addressing and routing.
10101100.00010000.00010100.00110111
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.

48. 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
Data Link
Layer 4
Switch or bridge
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).

49. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
10101100.00010000.00010100.00110111
CA:F5:83:EB
Segments - packets - frames - bits
Bridge or switch

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