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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. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
3 - 2 - 1 - none
198.211.57.209
Transport

2. Logical addressing is used at this layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Session layer creates sessions between different hosts' applications.
10101100.00010000.00010100.00110111
Network

3. Which layer is represented by packets?
The Data Link layer frames packets received from the Network layer.
Transport
The Network layer creates packets out of segments handed down from the Transport layer.
11000000.10101000.00001010.00001111

4. What are two purposes for segmentation with a bridge?
Decrease the window size.
Segments - packets - frames - bits
183/B7
To create more collision domains and to add more bandwidth for users.

5. Which layer is represented by bits?
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 Physical layer is responsible for transporting 1s and 0s in a digital signal.
RJ45 UTP rolled cable.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

6. This device creates one big collision domain and one large broadcast domain.
Decrease the window size.
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub

7. Segmentation of a data stream happens at which layer of the OSI model?
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport
The Session layer creates sessions between different hosts' applications.
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.

8. Which of the following are 3 common types of flow control?
11000000.10101000.00001010.00001111
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Buffering - windowing - congestion avoidance

9. Convert 10.11.12.99 to binary format.
The Session layer creates sessions between different hosts' applications.
Data Link
00001010.00001011.00001100.01100011
Source and destination MAC address and FCS field

10. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
48 bits (6 bytes)
Switch or bridge
84:D2:43:B3
Transport

11. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
11000000.10101000.00001010.00001111
Data Link & Physical
198.211.57.209
Segments - packets - frames - bits

12. 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
3 - 2 - 1 - none
Transport
Data Link & Physical

13. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Data Link (LLC sublayer)
Hub
Switch or bridge
48 bits (6 bytes)

14. 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?
Transport
183/B7
RJ45 UTP rolled cable.
Decrease the window size.

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

16. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
11000000.10101000.00001010.00001111
To provide a means for the receiver to govern the amount of data sent by the sender.
183/B7
84:D2:43:B3

17. This device breaks up collision domains and broadcast domains.
48 bits (6 bytes)
Router
Fiber-opticcable
The Network layer provides routing through an internetwork and logical addressing.

18. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
The Transport layer segments user data.
204.51.170.85
Switch or bridge

19. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
10101100.00010000.00010100.00110111
To provide a means for the receiver to govern the amount of data sent by the sender.
CA:F5:83:EB

20. Why does the data communication industry use the layered OSI reference model? (Name two)
Network
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.
3 - 2 - 1 - none
10101100.00010000.00010100.00110111

21. 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.
The Data Link layer is responsible for the framing of data packets.
10101100.00010000.00010100.00110111

22. 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?
Transport
00001010.00001011.00001100.01100011
The Transport layer segments user data.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

23. Convert 192.168.10.15 to binary format.
3 - 2 - 1 - none
11000000.10101000.00001010.00001111
Hub and repeater
Data Link & Physical

24. 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.
Transport
Router
Data Link (LLC sublayer)

25. Which layer segments and reassembles data into a data stream?
Data Link & Physical
Transport
The Data Link layer frames packets received from the Network layer.
The Session layer sets up - maintains - and terminates sessions between applications.

26. 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).
Layer 4
Hub
D8:1B:3D:76

27. Name four router functions.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Source and destination MAC address and FCS field
Packet switching - Packet filtering - Internetwork communication - Path selection
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

28. Which two fields are contained within an IEEE Ethernet frame header?
The Transport layer segments user data.
Transport
Data - segment - packet - frame - bit
Source and destination MAC address and FCS field

29. What type of RJ45 UTP cable is used between switches?
The Session layer creates sessions between different hosts' applications.
Router
11000000.10101000.00001010.00001111
RJ45 UTP crossover cable.

30. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
132.210.184.166
RJ45 UTP crossover cable.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

31. Which layer provides logical addressing that routers will use for path determination?
The Network layer creates packets out of segments handed down from the Transport layer.
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
Source and destination MAC address and FCS field

32. 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.
Hub and repeater
Switch to switch - host to host - switch to host
198.211.57.209

33. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Data Link & Physical
Fiber-opticcable
204.51.170.85
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

34. This device can never run full duplex.
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub
84:D2:43:B3
Data - segment - packet - frame - bit

35. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
RJ45 UTP rolled cable.
The Presentation layer makes sure that data is in a readable format for the Application layer.
204.51.170.85

36. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
00001010.00001011.00001100.01100011
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.
Data Link
Transport

37. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Transport
48 bits (6 bytes)
D8:1B:3D:76
CA:F5:83:EB

38. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Decrease the window size.
Router
The Data Link layer is responsible for the framing of data packets.
The Presentation layer makes sure that data is in a readable format for the Application layer.

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?
Transport
Data - segment - packet - frame - bit
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 Transport layer user virtual circuits to create a reliable connection between two hosts.

40. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Decrease the window size.
Transport

41. This layer creates a virtual circuit before transmitting between two end stations.
Network
48 bits (6 bytes)
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.

42. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Network layer provides routing through an internetwork and logical addressing.
132.210.184.166
Network
204.51.170.85

43. This device can measure the distance to a remote network.
Data Link (LLC sublayer)
Router
The Transport layer segments user data.
183/B7

44. Which layer is represented by segments?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Transport layer segments user data.
The Presentation layer makes sure that data is in a readable format for the Application layer.
132.210.184.166

45. When data is encapsulated - which is the correct order?
To create more collision domains and to add more bandwidth for users.
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.
Data Link (LLC sublayer)
Data - segment - packet - frame - bit

46. This device uses hardware addresses to filter a network.
84:D2:43:B3
Bridge or switch
Data Link (LLC sublayer)
The Session layer creates sessions between different hosts' applications.

47. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
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
The Presentation layer makes sure that data is in a readable format for the Application layer.

48. What is the bit length and expression form of a MAC address?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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

49. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Physical layer is responsible for the electrical and mechanical connections between devices.
RJ45 UTP crossover cable.
CA:F5:83:EB
48 bits (6 bytes)

50. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Packet switching - Packet filtering - Internetwork communication - Path selection
3 - 2 - 1 - none
The Network layer provides logical addressing - typically IP addressing and routing.
Hub