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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. This device creates one big collision domain and one large broadcast domain.
Source and destination MAC address and FCS field
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub
RJ45 UTP rolled cable.

2. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
Transport
Data Link & Physical
Fiber-opticcable

3. Which layer is represented by packets?
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.
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.

4. What are two purposes for segmentation with a bridge?
The Session layer creates sessions between different hosts' applications.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Layer 4
To create more collision domains and to add more bandwidth for users.

5. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
Source and destination MAC address and FCS field
84:D2:43:B3
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.

6. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Transport
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

7. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
84:D2:43:B3
Data - segment - packet - frame - bit
00001010.00001011.00001100.01100011

8. What type of RJ45 UTP cable is used between switches?
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
D8:1B:3D:76
RJ45 UTP crossover cable.
Router

9. This device can measure the distance to a remote network.
Decrease the window size.
132.210.184.166
RJ45 UTP rolled cable.
Router

10. This layer uses service access points.
Switch to switch - host to host - switch to host
Transport
Layer 4
Data Link (LLC sublayer)

11. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
Buffering - windowing - congestion avoidance
Data Link

12. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
132.210.184.166
CA:F5:83:EB
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Transport layer segments user data.

13. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network
The Data Link layer is responsible for the framing of data packets.

14. At which layer is routing implemented - enabling connections and path selection between two end systems?
To provide a means for the receiver to govern the amount of data sent by the sender.
Bridge or switch
Layer 4
The Network layer provides routing through an internetwork and logical addressing.

15. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Data Link layer frames packets received from the Network layer.
To create more collision domains and to add more bandwidth for users.
Transport
198.211.57.209

16. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Hub and repeater
Source and destination MAC address and FCS field
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.

17. What is the purpose of flow control?
Fiber-opticcable
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer provides logical addressing - typically IP addressing and routing.
To provide a means for the receiver to govern the amount of data sent by the sender.

18. This device uses hardware addresses to filter a network.
The Transport layer segments user data.
Bridge or switch
204.51.170.85
10101100.00010000.00010100.00110111

19. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link (LLC sublayer)
D8:1B:3D:76

20. 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?
Switch or bridge
84:D2:43:B3
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.

21. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Network layer provides logical addressing - typically IP addressing and routing.
Network
Data Link
Buffering - windowing - congestion avoidance

22. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Hub
Fiber-opticcable
Router
3 - 2 - 1 - none

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?
Router
Decrease the window size.
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.

24. Which of the following are 3 common types of flow control?
The Transport layer segments user data.
Buffering - windowing - congestion avoidance
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.

25. This device breaks up collision domains and broadcast domains.
11000000.10101000.00001010.00001111
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
48 bits (6 bytes)

26. Convert 192.168.10.15 to binary format.
00001010.00001011.00001100.01100011
Network
11000000.10101000.00001010.00001111
CA:F5:83:EB

27. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub
132.210.184.166
D8:1B:3D:76

28. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
48 bits (6 bytes)
Buffering - windowing - congestion avoidance
204.51.170.85

29. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
Source and destination MAC address and FCS field
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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.

30. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
RJ45 UTP rolled cable.
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

31. Logical addressing is used at this layer.
Network
11000000.10101000.00001010.00001111
Data Link (LLC sublayer)
Data Link

32. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
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).
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub
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.

33. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Data Link layer frames packets received from the Network layer.
48 bits (6 bytes)
Switch or bridge
Data Link

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

35. This layer creates a virtual circuit before transmitting between two end stations.
Packet switching - Packet filtering - Internetwork communication - Path selection
183/B7
Router
Transport

36. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
CA:F5:83:EB
204.51.170.85
RJ45 UTP rolled cable.
To create more collision domains and to add more bandwidth for users.

37. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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 Presentation layer makes sure that data is in a readable format for the Application layer.
Hub and repeater

38. This device can never run full duplex.
Hub
The Transport layer user virtual circuits to create a reliable connection between two hosts.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Session layer creates sessions between different hosts' applications.

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.
Hub and repeater
The Data Link layer is responsible for the framing of data packets.
Network

40. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Router
3 - 2 - 1 - none
Data Link

41. Why does the data communication industry use the layered OSI reference model? (Name two)
To provide a means for the receiver to govern the amount of data sent by the sender.
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
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.
Transport

42. Segmentation of a data stream happens at which layer of the OSI model?
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).
Transport
RJ45 UTP rolled cable.
Layer 4

43. 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
Transport
The Session layer creates sessions between different hosts' applications.
Data Link
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).

44. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
RJ45 UTP crossover cable.
Buffering - windowing - congestion avoidance
Segments - packets - frames - bits
Data Link

45. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
198.211.57.209
Bridge or switch

46. Which layer is represented by segments?
Router
204.51.170.85
The Transport layer segments user data.
Hub and repeater

47. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Decrease the window size.
84:D2:43:B3
Data - segment - packet - frame - bit
Layer 4

48. This layer supports flow control and sequencing.
Transport
The Network layer provides routing through an internetwork and logical addressing.
The Transport layer segments user data.
48 bits (6 bytes)

49. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
132.210.184.166
Segments - packets - frames - bits
The Session layer creates sessions between different hosts' applications.

50. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Source and destination MAC address and FCS field
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.