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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 responsible for creating - managing - and terminating sessions between applications?
D8:1B:3D:76
84:D2:43:B3
The Session layer sets up - maintains - and terminates sessions between applications.
204.51.170.85

2. Which layer provides logical addressing that routers will use for path determination?
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer provides logical addressing - typically IP addressing and routing.
The Transport layer segments user data.

3. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Transport
Router
204.51.170.85
132.210.184.166

4. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Data Link & Physical
The Transport layer segments user data.
3 - 2 - 1 - none
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. What is the bit length and expression form of a MAC address?
Segments - packets - frames - bits
Decrease the window size.
The Network layer provides logical addressing - typically IP addressing and routing.
48 bits (6 bytes)

6. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
RJ45 UTP rolled cable.
The Data Link layer is responsible for the framing of data packets.

7. Which layer segments and reassembles data into a data stream?
Layer 4
Transport
Data - segment - packet - frame - bit
10101100.00010000.00010100.00110111

8. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
The Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP rolled cable.
The Session layer creates sessions between different hosts' applications.

9. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
Segments - packets - frames - bits
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Physical layer is responsible for the electrical and mechanical connections between devices.

10. Name three types of connections that can use full duplex.
84:D2:43:B3
Data Link
Switch to switch - host to host - switch to host
The Network layer provides routing through an internetwork and logical addressing.

11. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Buffering - windowing - congestion avoidance
Network
Transport
Segments - packets - frames - bits

12. This device can measure the distance to a remote network.
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
D8:1B:3D:76
Router

13. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Switch to switch - host to host - switch to host
Fiber-opticcable
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 rolled cable.

14. This device can never run full duplex.
RJ45 UTP rolled cable.
Hub
RJ45 UTP crossover cable.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

15. 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.
3 - 2 - 1 - none
48 bits (6 bytes)
Hub and repeater

16. Which layer is represented by packets?
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.
Decrease the window size.
10101100.00010000.00010100.00110111
The Network layer creates packets out of segments handed down from the Transport layer.

17. Convert 10.11.12.99 to binary format.
The Session layer creates sessions between different hosts' applications.
00001010.00001011.00001100.01100011
Fiber-opticcable
The Data Link layer is responsible for the framing of data packets.

18. 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 rolled cable.
The Network layer creates packets out of segments handed down from the Transport layer.
Source and destination MAC address and FCS field

19. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Switch or bridge
Transport
Layer 4
Decrease the window size.

20. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Source and destination MAC address and FCS field
The Presentation layer makes sure that data is in a readable format for the Application layer.
Network
Buffering - windowing - congestion avoidance

21. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
204.51.170.85
Hub and repeater
183/B7
RJ45 UTP rolled cable.

22. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
RJ45 UTP rolled cable.
Switch to switch - host to host - switch to host
132.210.184.166
Hub

23. Convert 192.168.10.15 to binary format.
The Network layer creates packets out of segments handed down from the Transport layer.
11000000.10101000.00001010.00001111
Data Link (LLC sublayer)
The Data Link layer frames packets received from the Network layer.

24. This device breaks up collision domains and broadcast domains.
Router
Network
RJ45 UTP rolled cable.
The Network layer provides logical addressing - typically IP addressing and routing.

25. This device uses hardware addresses to filter a network.
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.
The Session layer creates sessions between different hosts' applications.
Bridge or switch

26. What is the purpose of flow control?
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.
Switch or bridge
The Network layer provides routing through an internetwork and logical addressing.

27. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Data Link layer is responsible for the framing of data packets.
48 bits (6 bytes)
183/B7
Transport

28. Which layer is represented by frames?
Transport
Hub
84:D2:43:B3
The Data Link layer frames packets received from the Network layer.

29. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
RJ45 UTP rolled cable.
Bridge or switch
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

30. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Switch to switch - host to host - switch to host
Hub and repeater
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.

31. Logical addressing is used at this layer.
The Network layer creates packets out of segments handed down from the Transport layer.
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).
Network
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

32. Name four router functions.
Buffering - windowing - congestion avoidance
Router
Source and destination MAC address and FCS field
Packet switching - Packet filtering - Internetwork communication - Path selection

33. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Presentation layer makes sure that data is in a readable format for the Application layer.
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.
The Network layer provides routing through an internetwork and logical addressing.

34. This layer creates a virtual circuit before transmitting between two end stations.
Transport
The Data Link layer is responsible for the framing of data packets.
Router
3 - 2 - 1 - none

35. Which layer is represented by segments?
The Data Link layer frames packets received from the Network layer.
Switch to switch - host to host - switch to host
Transport
The Transport layer segments user data.

36. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Layer 4
Packet switching - Packet filtering - Internetwork communication - Path selection
Router
Switch or bridge

37. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
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 Physical layer is responsible for the electrical and mechanical connections between devices.
204.51.170.85
Router

38. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
RJ45 UTP crossover cable.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Switch to switch - host to host - switch to host
Buffering - windowing - congestion avoidance

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

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

41. This device sends and receives information about the Network layer.
Router
Data Link
To create more collision domains and to add more bandwidth for users.
Hub

42. Which layer is represented by bits?
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.
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.

43. 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?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer creates packets out of segments handed down from the Transport layer.
D8:1B:3D:76

44. Ethernet is defined at these layers.
Network
84:D2:43:B3
Data Link & Physical
Transport

45. What type of RJ45 UTP cable is used between switches?
The Network layer provides routing through an internetwork and logical addressing.
The Physical layer is responsible for the electrical and mechanical connections between devices.
RJ45 UTP crossover cable.
RJ45 UTP rolled cable.

46. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
48 bits (6 bytes)
Transport
D8:1B:3D:76
To create more collision domains and to add more bandwidth for users.

47. Convert 172.16.20.55 to binary format.
Transport
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
10101100.00010000.00010100.00110111

48. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
Hub
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

49. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub
Data - segment - packet - frame - bit

50. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
48 bits (6 bytes)
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
00001010.00001011.00001100.01100011
Hub