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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. What are two purposes for segmentation with a bridge?
00001010.00001011.00001100.01100011
The Transport layer user virtual circuits to create a reliable connection between two hosts.
To create more collision domains and to add more bandwidth for users.
48 bits (6 bytes)

2. Ethernet is defined at these layers.
Hub and repeater
The Network layer provides logical addressing - typically IP addressing and routing.
Data Link & Physical
198.211.57.209

3. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
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.
Layer 4
84:D2:43:B3

4. 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
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
183/B7

5. What is the purpose of flow control?
84:D2:43:B3
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.
To provide a means for the receiver to govern the amount of data sent by the sender.

6. At which layer is routing implemented - enabling connections and path selection between two end systems?
Network
10101100.00010000.00010100.00110111
The Network layer provides routing through an internetwork and logical addressing.
Layer 4

7. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Hub
Router
Transport
Switch or bridge

8. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Network
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Transport layer segments user data.

9. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
Transport
Buffering - windowing - congestion avoidance
204.51.170.85

10. 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?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link
Hub

11. Convert 192.168.10.15 to binary format.
Transport
To create more collision domains and to add more bandwidth for users.
The Session layer sets up - maintains - and terminates sessions between applications.
11000000.10101000.00001010.00001111

12. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Fiber-opticcable
RJ45 UTP crossover cable.
To provide a means for the receiver to govern the amount of data sent by the sender.

13. Which layer is represented by frames?
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
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 frames packets received from the Network layer.

14. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
84:D2:43:B3
Hub

15. Name three types of connections that can use full duplex.
Data - segment - packet - frame - bit
Switch to switch - host to host - switch to host
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Source and destination MAC address and FCS field

16. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
10101100.00010000.00010100.00110111
132.210.184.166
Router
Hub

17. What is the bit length and expression form of a MAC address?
The Session layer sets up - maintains - and terminates sessions between applications.
Fiber-opticcable
48 bits (6 bytes)
RJ45 UTP crossover cable.

18. Which layer is represented by packets?
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer creates packets out of segments handed down from the Transport layer.
The Data Link layer frames packets received from the Network layer.

19. This layer supports flow control and sequencing.
Switch or bridge
Transport
Buffering - windowing - congestion avoidance
Hub

20. Which layer segments and reassembles data into a data stream?
Hub
Transport
Fiber-opticcable
Buffering - windowing - congestion avoidance

21. Why does the data communication industry use the layered OSI reference model? (Name two)
Source and destination MAC address and FCS field
11000000.10101000.00001010.00001111
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.

22. Which layer is represented by bits?
Fiber-opticcable
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

23. Which layer is represented by segments?
The Network layer creates packets out of segments handed down from the Transport layer.
The Transport layer segments user data.
198.211.57.209
Router

24. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Switch or bridge

25. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
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.
Fiber-opticcable
The Data Link layer is responsible for the framing of data packets.

26. Segmentation of a data stream happens at which layer of the OSI model?
Transport
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
The Transport layer segments user data.

27. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Hub and repeater
The Transport layer user virtual circuits to create a reliable connection between two hosts.
204.51.170.85
Decrease the window size.

28. 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
The Data Link layer is responsible for the framing of data packets.
Layer 4
The Session layer sets up - maintains - and terminates sessions between applications.

29. This device can measure the distance to a remote network.
D8:1B:3D:76
Router
Data - segment - packet - frame - bit
198.211.57.209

30. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
Transport
204.51.170.85
Router

31. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
48 bits (6 bytes)
The Network layer provides logical addressing - typically IP addressing and routing.
Data Link & Physical

32. 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 Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer provides logical addressing - typically IP addressing and routing.
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.

33. 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.
RJ45 UTP crossover cable.
Layer 4
10101100.00010000.00010100.00110111

34. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
To create more collision domains and to add more bandwidth for users.
11000000.10101000.00001010.00001111
Router

35. 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.
The Network layer provides logical addressing - typically IP addressing and routing.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

36. Name four router functions.
204.51.170.85
183/B7
Router
Packet switching - Packet filtering - Internetwork communication - Path selection

37. 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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
204.51.170.85
Router

38. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
D8:1B:3D:76
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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.

39. Logical addressing is used at this layer.
Network
RJ45 UTP rolled cable.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Session layer creates sessions between different hosts' applications.

40. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Fiber-opticcable
Switch to switch - host to host - switch to host
Source and destination MAC address and FCS field
The Presentation layer makes sure that data is in a readable format for the Application layer.

41. Which of the following are 3 common types of flow control?
Transport
Buffering - windowing - congestion avoidance
RJ45 UTP crossover cable.
CA:F5:83:EB

42. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Transport
Data Link (LLC sublayer)
48 bits (6 bytes)

43. This layer creates a virtual circuit before transmitting between two end stations.
The Network layer creates packets out of segments handed down from the Transport layer.
48 bits (6 bytes)
The Data Link layer frames packets received from the Network layer.
Transport

44. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
132.210.184.166
The Physical layer is responsible for the electrical and mechanical connections between devices.
48 bits (6 bytes)
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

45. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
132.210.184.166
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.
Bridge or switch

46. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Presentation layer makes sure that data is in a readable format for the Application layer.
To create more collision domains and to add more bandwidth for users.
Layer 4
The Transport layer user virtual circuits to create a reliable connection between two hosts.

47. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
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
48 bits (6 bytes)

48. This device creates one big collision domain and one large broadcast domain.
Switch to switch - host to host - switch to host
198.211.57.209
Hub
Data - segment - packet - frame - bit

49. This device can never run full duplex.
CA:F5:83:EB
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

50. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Hub
Source and destination MAC address and FCS field
RJ45 UTP rolled cable.
Fiber-opticcable