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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 segments and reassembles data into a data stream?
Transport
3 - 2 - 1 - none
The Transport layer segments user data.
Hub and repeater

2. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
132.210.184.166
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport

3. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
Packet switching - Packet filtering - Internetwork communication - Path selection
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides logical addressing - typically IP addressing and routing.

4. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
Layer 4
3 - 2 - 1 - none

5. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Hub and repeater
Segments - packets - frames - bits
Router
Data Link (LLC sublayer)

6. Which layer is represented by packets?
Hub and repeater
The Transport layer segments user data.
The Network layer creates packets out of segments handed down from the Transport layer.
The Session layer sets up - maintains - and terminates sessions between applications.

7. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Network layer provides logical addressing - typically IP addressing and routing.
The Session layer sets up - maintains - and terminates sessions between applications.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport

8. 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.
The Data Link layer frames packets received from the Network layer.
D8:1B:3D:76
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.

9. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
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
Source and destination MAC address and FCS field

10. Convert 192.168.10.15 to binary format.
Network
Data - segment - packet - frame - bit
Source and destination MAC address and FCS field
11000000.10101000.00001010.00001111

11. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
132.210.184.166
204.51.170.85
RJ45 UTP rolled cable.
The Session layer creates sessions between different hosts' applications.

12. At which layer is routing implemented - enabling connections and path selection between two end systems?
Transport
84:D2:43:B3
The Network layer provides routing through an internetwork and logical addressing.
Fiber-opticcable

13. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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
Data Link & Physical
To provide a means for the receiver to govern the amount of data sent by the sender.

14. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
84:D2:43:B3
Fiber-opticcable
The Data Link layer frames packets received from the Network layer.
CA:F5:83:EB

15. Ethernet is defined at these layers.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
To create more collision domains and to add more bandwidth for users.
Hub
Data Link & Physical

16. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
The Network layer provides logical addressing - typically IP addressing and routing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Fiber-opticcable
D8:1B:3D:76

17. This device creates one big collision domain and one large broadcast domain.
The Network layer provides logical addressing - typically IP addressing and routing.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub
D8:1B:3D:76

18. This device sends and receives information about the Network layer.
Data - segment - packet - frame - bit
11000000.10101000.00001010.00001111
Hub
Router

19. 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?
The Network layer provides routing through an internetwork and logical addressing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Data Link layer is responsible for the framing of data packets.
Data Link & Physical

20. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
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
Router
Transport

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

22. Which layer provides logical addressing that routers will use for path determination?
Hub
132.210.184.166
Hub and repeater
The Network layer provides logical addressing - typically IP addressing and routing.

23. What is the purpose of flow control?
Hub and repeater
10101100.00010000.00010100.00110111
Bridge or switch
To provide a means for the receiver to govern the amount of data sent by the sender.

24. This device can never run full duplex.
84:D2:43:B3
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).
Hub
Segments - packets - frames - bits

25. Name four router functions.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Packet switching - Packet filtering - Internetwork communication - Path selection
Network
Switch to switch - host to host - switch to host

26. 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
Data - segment - packet - frame - bit
RJ45 UTP crossover cable.
10101100.00010000.00010100.00110111

27. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
3 - 2 - 1 - none
Segments - packets - frames - bits
198.211.57.209
The Data Link layer is responsible for the framing of data packets.

28. 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.
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport
Data Link & Physical

29. Convert 10.11.12.99 to binary format.
The Network layer creates packets out of segments handed down from the Transport layer.
00001010.00001011.00001100.01100011
Source and destination MAC address and FCS field
132.210.184.166

30. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link (LLC sublayer)

31. 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.
To create more collision domains and to add more bandwidth for users.
Network
Transport

32. Which of the following are 3 common types of flow control?
Packet switching - Packet filtering - Internetwork communication - Path selection
Switch or bridge
Buffering - windowing - congestion avoidance
Data Link

33. Segmentation of a data stream happens at which layer of the OSI model?
Data Link & Physical
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link (LLC sublayer)
Transport

34. This device uses hardware addresses to filter a network.
Bridge or switch
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Switch or bridge
Decrease the window size.

35. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
132.210.184.166
Switch to switch - host to host - switch to host
Transport

36. This layer creates a virtual circuit before transmitting between two end stations.
Buffering - windowing - congestion avoidance
Data - segment - packet - frame - bit
Hub and repeater
Transport

37. 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
Data Link (LLC sublayer)
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).
Segments - packets - frames - bits
Switch or bridge

38. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
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.
198.211.57.209
The Data Link layer frames packets received from the Network layer.

39. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
To create more collision domains and to add more bandwidth for users.

40. This device breaks up collision domains and broadcast domains.
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.
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

41. This layer supports flow control and sequencing.
Switch or bridge
183/B7
Transport
Source and destination MAC address and FCS field

42. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
10101100.00010000.00010100.00110111
Bridge or switch
Switch to switch - host to host - switch to host
Network

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?
Router
Switch to switch - host to host - switch to host
The Transport layer user virtual circuits to create a reliable connection between two hosts.
84:D2:43:B3

44. 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.
Transport
Network
The Session layer creates sessions between different hosts' applications.

45. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Switch or bridge
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.
Hub and repeater

46. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
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
198.211.57.209
3 - 2 - 1 - none

47. Convert 172.16.20.55 to binary format.
Router
Segments - packets - frames - bits
CA:F5:83:EB
10101100.00010000.00010100.00110111

48. Name three types of connections that can use full duplex.
Segments - packets - frames - bits
Data - segment - packet - frame - bit
The Network layer creates packets out of segments handed down from the Transport layer.
Switch to switch - host to host - switch to host

49. This device can measure the distance to a remote network.
Switch or bridge
Router
D8:1B:3D:76
RJ45 UTP crossover cable.

50. 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.
The Data Link layer frames packets received from the Network layer.
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.