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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. This layer uses service access points.
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 (LLC sublayer)
The Network layer provides routing through an internetwork and logical addressing.
3 - 2 - 1 - none

2. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
183/B7
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.
D8:1B:3D:76
Buffering - windowing - congestion avoidance

3. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
The Network layer provides routing through an internetwork and logical addressing.
48 bits (6 bytes)
204.51.170.85

4. Convert 192.168.10.15 to binary format.
To create more collision domains and to add more bandwidth for users.
Router
183/B7
11000000.10101000.00001010.00001111

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

6. 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).
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub

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

8. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.

9. Name four router functions.
Router
The Presentation layer makes sure that data is in a readable format for the Application layer.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Data Link layer is responsible for the framing of data packets.

10. This device can measure the distance to a remote network.
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
RJ45 UTP crossover cable.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

11. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
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.
Layer 4
Buffering - windowing - congestion avoidance
The Presentation layer makes sure that data is in a readable format for the Application layer.

12. 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?
Hub and repeater
183/B7
CA:F5:83:EB
The Transport layer user virtual circuits to create a reliable connection between two hosts.

13. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
11000000.10101000.00001010.00001111
Packet switching - Packet filtering - Internetwork communication - Path selection

14. 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
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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).

15. This device can never run full duplex.
RJ45 UTP rolled cable.
Network
Hub
Transport

16. What type of RJ45 UTP cable is used between switches?
198.211.57.209
Data Link (LLC sublayer)
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.

17. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Transport
Router
198.211.57.209
Transport

18. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
The Data Link layer is responsible for the framing of data packets.
The Session layer sets up - maintains - and terminates sessions between applications.
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).

19. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
The Physical layer is responsible for the electrical and mechanical connections between devices.
84:D2:43:B3
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

20. 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.
The Network layer provides routing through an internetwork and logical addressing.
Segments - packets - frames - bits
The Data Link layer frames packets received from the Network layer.

21. 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?
Data Link
Decrease the window size.
The Network layer provides logical addressing - typically IP addressing and routing.
Transport

22. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Transport
Fiber-opticcable
To provide a means for the receiver to govern the amount of data sent by the sender.
3 - 2 - 1 - none

23. Convert 10.11.12.99 to binary format.
The Data Link layer frames packets received from the Network layer.
Transport
00001010.00001011.00001100.01100011
Hub

24. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Hub
Hub
The Transport layer user virtual circuits to create a reliable connection between two hosts.

25. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
10101100.00010000.00010100.00110111
The Physical layer is responsible for the electrical and mechanical connections between devices.
Fiber-opticcable
CA:F5:83:EB

26. When data is encapsulated - which is the correct order?
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
Data - segment - packet - frame - bit
84:D2:43:B3

27. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Data Link & Physical
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Network
132.210.184.166

28. Which layer segments and reassembles data into a data stream?
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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 Transport layer user virtual circuits to create a reliable connection between two hosts.

29. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Switch to switch - host to host - switch to host
D8:1B:3D:76
Router
Buffering - windowing - congestion avoidance

30. This device breaks up collision domains and broadcast domains.
00001010.00001011.00001100.01100011
Router
Transport
The Session layer creates sessions between different hosts' applications.

31. Ethernet is defined at these layers.
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link & Physical
Network
204.51.170.85

32. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Data Link layer frames packets received from the Network layer.
Data Link
Router
183/B7

33. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
132.210.184.166
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.
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

34. Logical addressing is used at this layer.
Network
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.
84:D2:43:B3

35. What is the bit length and expression form of a MAC address?
Transport
Buffering - windowing - congestion avoidance
48 bits (6 bytes)
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

36. This device uses hardware addresses to filter a network.
Bridge or switch
Data Link
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub

37. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Hub
Bridge or switch
84:D2:43:B3
Data Link (LLC sublayer)

38. Segmentation of a data stream happens at which layer of the OSI model?
Transport
132.210.184.166
The Data Link layer is responsible for the framing of data packets.
To provide a means for the receiver to govern the amount of data sent by the sender.

39. Convert 172.16.20.55 to binary format.
Data - segment - packet - frame - bit
The Network layer provides logical addressing - typically IP addressing and routing.
00001010.00001011.00001100.01100011
10101100.00010000.00010100.00110111

40. This layer creates a virtual circuit before transmitting between two end stations.
Transport
10101100.00010000.00010100.00110111
Data - segment - packet - frame - bit
RJ45 UTP crossover cable.

41. This device creates one big collision domain and one large broadcast domain.
Hub
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011
Source and destination MAC address and FCS field

42. This layer supports flow control and sequencing.
Transport
Switch to switch - host to host - switch to host
Segments - packets - frames - bits
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

43. Which two fields are contained within an IEEE Ethernet frame header?
The Transport layer segments user data.
The Session layer creates sessions between different hosts' applications.
CA:F5:83:EB
Source and destination MAC address and FCS field

44. Which layer is represented by bits?
The Network layer creates packets out of segments handed down from the Transport layer.
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.
RJ45 UTP crossover cable.

45. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Transport layer segments user data.
Router
Data - segment - packet - frame - bit
3 - 2 - 1 - none

46. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
The Session layer creates sessions between different hosts' applications.
The Network layer creates packets out of segments handed down from the Transport layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.

47. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Data Link
The Network layer provides routing through an internetwork and logical addressing.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

48. Why does the data communication industry use the layered OSI reference model? (Name two)
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 logical addressing - typically IP addressing and routing.
Hub and repeater
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.

49. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
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.
198.211.57.209
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

50. At which layer is routing implemented - enabling connections and path selection between two end systems?
CA:F5:83:EB
The Network layer provides routing through an internetwork and logical addressing.
Buffering - windowing - congestion avoidance
Decrease the window size.