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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. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Segments - packets - frames - bits
10101100.00010000.00010100.00110111

2. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router

3. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
183/B7
Layer 4
RJ45 UTP rolled cable.

4. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Switch or bridge
D8:1B:3D:76
Hub
198.211.57.209

5. This layer supports flow control and sequencing.
Transport
To create more collision domains and to add more bandwidth for users.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer segments user data.

6. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides routing through an internetwork and logical addressing.
132.210.184.166
84:D2:43:B3

7. Which layer is represented by bits?
Transport
3 - 2 - 1 - none
D8:1B:3D:76
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

8. This layer uses service access points.
RJ45 UTP crossover cable.
Data Link (LLC sublayer)
The Network layer provides routing through an internetwork and logical addressing.
00001010.00001011.00001100.01100011

9. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Data Link & Physical
The Transport layer segments user data.
The Network layer creates packets out of segments handed down from the Transport layer.

10. Convert 10.11.12.99 to binary format.
Switch to switch - host to host - switch to host
The Session layer sets up - maintains - and terminates sessions between applications.
00001010.00001011.00001100.01100011
3 - 2 - 1 - none

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?
132.210.184.166
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Packet switching - Packet filtering - Internetwork communication - Path selection
48 bits (6 bytes)

12. Convert 192.168.10.15 to binary format.
Transport
11000000.10101000.00001010.00001111
Fiber-opticcable
RJ45 UTP rolled cable.

13. This device breaks up collision domains and broadcast domains.
00001010.00001011.00001100.01100011
Router
Transport
Bridge or switch

14. What is the bit length and expression form of a MAC address?
The Data Link layer frames packets received from the Network layer.
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
Transport

15. What type of RJ45 UTP cable is used between switches?
To provide a means for the receiver to govern the amount of data sent by the sender.
The Session layer creates sessions between different hosts' applications.
48 bits (6 bytes)
RJ45 UTP crossover cable.

16. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Transport layer segments user data.
Data Link (LLC sublayer)
3 - 2 - 1 - none
The Data Link layer is responsible for the framing of data packets.

17. This device sends and receives information about the Network layer.
Router
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub
Hub

18. This device can never run full duplex.
Transport
Router
Layer 4
Hub

19. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Packet switching - Packet filtering - Internetwork communication - Path selection
Buffering - windowing - congestion avoidance
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Network

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

21. Logical addressing is used at this layer.
Layer 4
Segments - packets - frames - bits
132.210.184.166
Network

22. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Source and destination MAC address and FCS field
Layer 4
CA:F5:83:EB
Router

23. 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?
To create more collision domains and to add more bandwidth for users.
Network
Decrease the window size.
Fiber-opticcable

24. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Bridge or switch
84:D2:43:B3
00001010.00001011.00001100.01100011
RJ45 UTP rolled cable.

25. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
The Data Link layer is responsible for the framing of data packets.
183/B7
Data - segment - packet - frame - bit

26. Convert 172.16.20.55 to binary format.
The Transport layer segments user data.
The Data Link layer is responsible for the framing of data packets.
10101100.00010000.00010100.00110111
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).

27. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
84:D2:43:B3
To create more collision domains and to add more bandwidth for users.
3 - 2 - 1 - none

28. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
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 the electrical and mechanical connections between devices.
3 - 2 - 1 - none

29. What are two purposes for segmentation with a bridge?
Layer 4
To create more collision domains and to add more bandwidth for users.
CA:F5:83:EB
RJ45 UTP crossover cable.

30. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Bridge or switch
Hub and repeater
204.51.170.85
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.

31. Name three types of connections that can use full duplex.
00001010.00001011.00001100.01100011
Switch to switch - host to host - switch to host
Transport
RJ45 UTP rolled cable.

32. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
To create more collision domains and to add more bandwidth for users.
Switch to switch - host to host - switch to host
Network

33. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
Switch to switch - host to host - switch to host
Hub and repeater
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

34. This device can measure the distance to a remote network.
132.210.184.166
Hub and repeater
To create more collision domains and to add more bandwidth for users.
Router

35. What is the purpose of flow control?
Decrease the window size.
198.211.57.209
To provide a means for the receiver to govern the amount of data sent by the sender.
3 - 2 - 1 - none

36. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
The Network layer provides routing through an internetwork and logical addressing.
D8:1B:3D:76
00001010.00001011.00001100.01100011
The Presentation layer makes sure that data is in a readable format for the Application layer.

37. This layer creates a virtual circuit before transmitting between two end stations.
Transport
Source and destination MAC address and FCS field
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link (LLC sublayer)

38. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Switch or bridge
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 is responsible for transporting 1s and 0s in a digital signal.
Router

39. 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 Session layer sets up - maintains - and terminates sessions between applications.
Transport
The Data Link layer frames packets received from the Network layer.

40. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Data Link & Physical
Packet switching - Packet filtering - Internetwork communication - Path selection
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).

41. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Network layer provides routing through an internetwork and logical addressing.
Hub
Router
Data Link & Physical

42. Why does the data communication industry use the layered OSI reference model? (Name two)
198.211.57.209
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.
CA:F5:83:EB
Layer 4

43. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Transport
Source and destination MAC address and FCS field
The Physical layer is responsible for the electrical and mechanical connections between devices.

44. Which layer is represented by frames?
To provide a means for the receiver to govern the amount of data sent by the sender.
48 bits (6 bytes)
The Data Link layer frames packets received from the Network layer.
00001010.00001011.00001100.01100011

45. Which layer is represented by segments?
Fiber-opticcable
Switch or bridge
The Transport layer segments user data.
RJ45 UTP rolled cable.

46. 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.
198.211.57.209
3 - 2 - 1 - none
Hub

47. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Router
11000000.10101000.00001010.00001111
183/B7
Network

48. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Transport
Network
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

49. 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
Buffering - windowing - congestion avoidance
Layer 4
Data Link & Physical
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).

50. 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.
Hub
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 Transport layer segments user data.