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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 10000100.11010010.10111000.10100110 to decimal IP format.
Router
132.210.184.166
Fiber-opticcable
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.

2. Ethernet is defined at these layers.
Router
Data Link & Physical
84:D2:43:B3
The Physical layer is responsible for the electrical and mechanical connections between devices.

3. Why does the data communication industry use the layered OSI reference model? (Name two)
RJ45 UTP crossover cable.
The Transport layer segments user data.
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

4. When data is encapsulated - which is the correct order?
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
Network
Data - segment - packet - frame - bit
Hub

5. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Fiber-opticcable
Layer 4
10101100.00010000.00010100.00110111
The Session layer creates sessions between different hosts' applications.

6. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Buffering - windowing - congestion avoidance
3 - 2 - 1 - none
The Transport layer segments user data.
The Network layer creates packets out of segments handed down from the Transport layer.

7. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
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.
Transport
Transport

8. What are two purposes for segmentation with a bridge?
Buffering - windowing - congestion avoidance
To create more collision domains and to add more bandwidth for users.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
48 bits (6 bytes)

9. 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 Session layer creates sessions between different hosts' applications.
The Network layer creates packets out of segments handed down from the Transport layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport

10. Which layer segments and reassembles data into a data stream?
To provide a means for the receiver to govern the amount of data sent by the sender.
Router
Transport
The Network layer provides routing through an internetwork and logical addressing.

11. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
Router
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.
Fiber-opticcable

12. This device can never run full duplex.
Hub
84:D2:43:B3
D8:1B:3D:76
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

13. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Transport layer user virtual circuits to create a reliable connection between two hosts.
11000000.10101000.00001010.00001111
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
Buffering - windowing - congestion avoidance

14. This layer uses service access points.
Hub and repeater
Router
Data Link (LLC sublayer)
Segments - packets - frames - bits

15. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Packet switching - Packet filtering - Internetwork communication - Path selection
Network
Data Link
Source and destination MAC address and FCS field

16. Segmentation of a data stream happens at which layer of the OSI model?
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 provide a means for the receiver to govern the amount of data sent by the sender.
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport

17. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Fiber-opticcable
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport

18. Convert 10.11.12.99 to binary format.
Layer 4
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
00001010.00001011.00001100.01100011
Data Link & Physical

19. Which of the following are 3 common types of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
Data - segment - packet - frame - bit
Buffering - windowing - congestion avoidance
Packet switching - Packet filtering - Internetwork communication - Path selection

20. This device creates one big collision domain and one large broadcast domain.
Router
Transport
Hub
The Network layer provides logical addressing - typically IP addressing and routing.

21. Which layer is represented by segments?
Fiber-opticcable
Switch or bridge
00001010.00001011.00001100.01100011
The Transport layer segments user data.

22. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
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.
RJ45 UTP rolled cable.
Hub and repeater

23. 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.
The Session layer creates sessions between different hosts' applications.
84:D2:43:B3
Data - segment - packet - frame - bit

24. 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.
204.51.170.85
Fiber-opticcable
Layer 4

25. This device uses hardware addresses to filter a network.
Source and destination MAC address and FCS field
The Session layer creates sessions between different hosts' applications.
Bridge or switch
To create more collision domains and to add more bandwidth for users.

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.
Source and destination MAC address and FCS field
84:D2:43:B3
Network

27. This layer creates a virtual circuit before transmitting between two end stations.
Switch to switch - host to host - switch to host
Hub and repeater
Hub
Transport

28. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Hub and repeater
Hub
Router

29. Which layer is represented by bits?
Bridge or switch
Transport
Source and destination MAC address and FCS field
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

30. Which layer is represented by packets?
Switch or bridge
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).
132.210.184.166
The Network layer creates packets out of segments handed down from the Transport layer.

31. This layer supports flow control and sequencing.
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub
The Session layer sets up - maintains - and terminates sessions between applications.

32. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
00001010.00001011.00001100.01100011
D8:1B:3D:76
Hub and repeater
The Physical layer is responsible for the electrical and mechanical connections between devices.

33. Which two fields are contained within an IEEE Ethernet frame header?
Network
Segments - packets - frames - bits
To create more collision domains and to add more bandwidth for users.
Source and destination MAC address and FCS field

34. Convert 192.168.10.15 to binary format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
11000000.10101000.00001010.00001111
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer provides routing through an internetwork and logical addressing.

35. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
Data - segment - packet - frame - bit
Fiber-opticcable
The Network layer provides logical addressing - typically IP addressing and routing.

36. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Segments - packets - frames - bits
Hub and repeater
Data - segment - packet - frame - bit
132.210.184.166

37. Convert 172.16.20.55 to binary format.
Transport
198.211.57.209
10101100.00010000.00010100.00110111
Hub

38. 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?
Layer 4
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Fiber-opticcable
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

39. 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.
Fiber-opticcable
The Session layer sets up - maintains - and terminates sessions between applications.
3 - 2 - 1 - none

40. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Buffering - windowing - congestion avoidance
Switch to switch - host to host - switch to host
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.

41. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Source and destination MAC address and FCS field
Switch or bridge
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).

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

43. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
Router
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.

44. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
Segments - packets - frames - bits
RJ45 UTP crossover cable.
Bridge or switch

45. Name four router functions.
The Network layer provides routing through an internetwork and logical addressing.
The Network layer creates packets out of segments handed down from the Transport layer.
132.210.184.166
Packet switching - Packet filtering - Internetwork communication - Path selection

46. 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?
Segments - packets - frames - bits
Router
Decrease the window size.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

47. This device breaks up collision domains and broadcast domains.
Hub
Router
132.210.184.166
Transport

48. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Transport layer segments user data.
Transport
Switch or bridge
84:D2:43:B3

49. Logical addressing is used at this layer.
Switch to switch - host to host - switch to host
To create more collision domains and to add more bandwidth for users.
Segments - packets - frames - bits
Network

50. Which layer provides logical addressing that routers will use for path determination?
To provide a means for the receiver to govern the amount of data sent by the sender.
183/B7
The Network layer provides logical addressing - typically IP addressing and routing.
To create more collision domains and to add more bandwidth for users.