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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. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Session layer sets up - maintains - and terminates sessions between applications.
Packet switching - Packet filtering - Internetwork communication - Path selection
11000000.10101000.00001010.00001111
3 - 2 - 1 - none

2. What is the bit length and expression form of a MAC address?
D8:1B:3D:76
48 bits (6 bytes)
The Transport layer segments user data.
Data Link & Physical

3. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
To provide a means for the receiver to govern the amount of data sent by the sender.
RJ45 UTP crossover cable.
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

4. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Router
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

5. 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?
10101100.00010000.00010100.00110111
To provide a means for the receiver to govern the amount of data sent by the sender.
Decrease the window size.
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.

6. 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
198.211.57.209
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).

7. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
RJ45 UTP rolled cable.
84:D2:43:B3
Decrease the window size.
Transport

8. What are two purposes for segmentation with a bridge?
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.
To create more collision domains and to add more bandwidth for users.
RJ45 UTP rolled cable.
Hub

9. Which layer provides logical addressing that routers will use for path determination?
00001010.00001011.00001100.01100011
10101100.00010000.00010100.00110111
The Network layer provides logical addressing - typically IP addressing and routing.
Packet switching - Packet filtering - Internetwork communication - Path selection

10. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Data Link layer frames packets received from the Network layer.
CA:F5:83:EB
204.51.170.85

11. 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.
Transport
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

12. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Switch to switch - host to host - switch to host
The Session layer creates sessions between different hosts' applications.
The Session layer sets up - maintains - and terminates sessions between applications.
CA:F5:83:EB

13. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Transport layer segments user data.
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.
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 - segment - packet - frame - bit

14. This device uses hardware addresses to filter a network.
Bridge or switch
Hub
Transport
RJ45 UTP rolled cable.

15. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
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.
Source and destination MAC address and FCS field
Fiber-opticcable
Transport

16. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Session layer creates sessions between different hosts' applications.
RJ45 UTP rolled cable.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Data Link layer is responsible for the framing of data packets.

17. What type of RJ45 UTP cable is used between switches?
The Physical layer is responsible for the electrical and mechanical connections between devices.
RJ45 UTP crossover cable.
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.
Hub

18. Convert 192.168.10.15 to binary format.
Bridge or switch
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.
11000000.10101000.00001010.00001111

19. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Router
Layer 4
Switch to switch - host to host - switch to host
The Transport layer segments user data.

20. Which layer is responsible for creating - managing - and terminating sessions between applications?
D8:1B:3D:76
The Network layer provides routing through an internetwork and logical addressing.
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.

21. Name four router functions.
183/B7
10101100.00010000.00010100.00110111
Packet switching - Packet filtering - Internetwork communication - Path selection
198.211.57.209

22. 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
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 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).

23. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Decrease the window size.
Layer 4
198.211.57.209
Router

24. This layer supports flow control and sequencing.
Network
The Session layer creates sessions between different hosts' applications.
Transport
Network

25. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
84:D2:43:B3
Fiber-opticcable
Packet switching - Packet filtering - Internetwork communication - Path selection

26. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
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
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 Network layer provides logical addressing - typically IP addressing and routing.

27. This device can never run full duplex.
Hub
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Transport layer segments user data.
Hub and repeater

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

29. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Network layer creates packets out of segments handed down from the Transport layer.
183/B7
84:D2:43:B3
The Physical layer is responsible for the electrical and mechanical connections between devices.

30. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Transport
132.210.184.166
CA:F5:83:EB
Transport

31. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
10101100.00010000.00010100.00110111
Layer 4
Data Link (LLC sublayer)

32. Why does the data communication industry use the layered OSI reference model? (Name two)
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 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.
Transport

33. 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.
Network
The Transport layer segments user data.
132.210.184.166

34. At which layer is routing implemented - enabling connections and path selection between two end systems?
Switch or bridge
183/B7
The Network layer provides routing through an internetwork and logical addressing.
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.

35. Which layer is represented by packets?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub
The Network layer creates packets out of segments handed down from the Transport layer.
84:D2:43:B3

36. This device creates one big collision domain and one large broadcast domain.
Hub
Router
CA:F5:83:EB
Decrease the window size.

37. What is the purpose of flow control?
RJ45 UTP rolled cable.
The Presentation layer makes sure that data is in a readable format for the Application layer.
00001010.00001011.00001100.01100011
To provide a means for the receiver to govern the amount of data sent by the sender.

38. Which of the following are 3 common types of flow control?
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.
Buffering - windowing - congestion avoidance
RJ45 UTP rolled cable.

39. 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?
84:D2:43:B3
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

40. This layer uses service access points.
Data Link (LLC sublayer)
The Network layer provides routing through an internetwork and logical addressing.
The Network layer provides logical addressing - typically IP addressing and routing.
Switch or bridge

41. This device breaks up collision domains and broadcast domains.
Packet switching - Packet filtering - Internetwork communication - Path selection
Router
Hub
The Network layer provides routing through an internetwork and logical addressing.

42. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Network
Router
The Network layer provides routing through an internetwork and logical addressing.
Data Link

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

44. Which layer segments and reassembles data into a data stream?
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
Switch to switch - host to host - switch to host
Data Link & Physical

45. This device sends and receives information about the Network layer.
Data Link (LLC sublayer)
The Data Link layer is responsible for the framing of data packets.
The Network layer provides logical addressing - typically IP addressing and routing.
Router

46. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Switch or bridge
Data Link & Physical
Bridge or switch
Hub and repeater

47. Ethernet is defined at these layers.
204.51.170.85
Data Link & Physical
Bridge or switch
To create more collision domains and to add more bandwidth for users.

48. This layer creates a virtual circuit before transmitting between two end stations.
Transport
Network
Data Link
Buffering - windowing - congestion avoidance

49. 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.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Transport layer segments user data.

50. This device can measure the distance to a remote network.
Transport
Router
The Transport layer segments user data.
Data Link (LLC sublayer)