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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 layer creates a virtual circuit before transmitting between two end stations.
3 - 2 - 1 - none
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).
Data Link
Transport

2. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
The Data Link layer is responsible for the framing of data packets.
The Data Link layer frames packets received from the Network layer.
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. 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 Transport layer user virtual circuits to create a reliable connection between two hosts.
Segments - packets - frames - bits
Data - segment - packet - frame - bit
10101100.00010000.00010100.00110111

4. Ethernet is defined at these layers.
84:D2:43:B3
Data Link & Physical
Fiber-opticcable
Transport

5. 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.
RJ45 UTP rolled cable.
Transport
Bridge or switch

6. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
10101100.00010000.00010100.00110111
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
Hub and repeater

7. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
Data Link
D8:1B:3D:76
Fiber-opticcable

8. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
RJ45 UTP rolled cable.
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.
10101100.00010000.00010100.00110111
Fiber-opticcable

9. 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 Network layer creates packets out of segments handed down from the Transport layer.
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.

10. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
48 bits (6 bytes)
Data Link & Physical
Network

11. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
The Transport layer segments user data.
3 - 2 - 1 - none
To create more collision domains and to add more bandwidth for users.

12. What is the bit length and expression form of a MAC address?
RJ45 UTP crossover cable.
The Data Link layer frames packets received from the Network layer.
Segments - packets - frames - bits
48 bits (6 bytes)

13. This device creates one big collision domain and one large broadcast domain.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub
183/B7
84:D2:43:B3

14. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
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
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

15. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link (LLC sublayer)
132.210.184.166

16. 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?
Packet switching - Packet filtering - Internetwork communication - Path selection
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).
183/B7

17. Which two fields are contained within an IEEE Ethernet frame header?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Source and destination MAC address and FCS field
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.

18. At which layer is routing implemented - enabling connections and path selection between two end systems?
Switch or bridge
Switch to switch - host to host - switch to host
The Network layer provides routing through an internetwork and logical addressing.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

19. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Router
Router
RJ45 UTP rolled cable.
Data Link & Physical

20. 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 Session layer sets up - maintains - and terminates sessions between applications.
84:D2:43:B3
Router

21. When data is encapsulated - which is the correct order?
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.
Data Link (LLC sublayer)
Router
Data - segment - packet - frame - bit

22. This layer uses service access points.
The Data Link layer frames packets received from the Network layer.
Source and destination MAC address and FCS field
11000000.10101000.00001010.00001111
Data Link (LLC sublayer)

23. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
Hub
RJ45 UTP rolled cable.
The Network layer creates packets out of segments handed down from the Transport layer.

24. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data - segment - packet - frame - bit
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

25. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Network layer provides routing through an internetwork and logical addressing.
CA:F5:83:EB
Data - segment - packet - frame - bit
The Data Link layer is responsible for the framing of data packets.

26. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
To create more collision domains and to add more bandwidth for users.
00001010.00001011.00001100.01100011
Switch to switch - host to host - switch to host

27. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Hub
Source and destination MAC address and FCS field
The Session layer creates sessions between different hosts' applications.
The Physical layer is responsible for the electrical and mechanical connections between devices.

28. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Switch to switch - host to host - switch to host
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
132.210.184.166
Transport

29. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
3 - 2 - 1 - none
The Transport layer segments user data.
Data Link & Physical
The Data Link layer is responsible for the framing of data packets.

30. Logical addressing is used at this layer.
Router
Buffering - windowing - congestion avoidance
Network
The Transport layer segments user data.

31. What are two purposes for segmentation with a bridge?
The Transport layer segments user data.
Transport
To create more collision domains and to add more bandwidth for users.
Transport

32. What is the purpose of flow control?
84:D2:43:B3
The Presentation layer makes sure that data is in a readable format for the Application layer.
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.

33. 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.
132.210.184.166
198.211.57.209
10101100.00010000.00010100.00110111

34. Convert 10.11.12.99 to binary format.
48 bits (6 bytes)
84:D2:43:B3
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.
00001010.00001011.00001100.01100011

35. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Router
Transport
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
Switch or bridge

36. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Data - segment - packet - frame - bit
D8:1B:3D:76
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.

37. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Bridge or switch

38. Which layer is represented by bits?
132.210.184.166
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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).
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

39. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
10101100.00010000.00010100.00110111
The Data Link layer is responsible for the framing of data packets.
Packet switching - Packet filtering - Internetwork communication - Path selection

40. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
198.211.57.209
Bridge or switch
RJ45 UTP crossover cable.

41. This device can never run full duplex.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Switch or bridge
Hub

42. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
48 bits (6 bytes)
3 - 2 - 1 - none
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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

43. This layer supports flow control and sequencing.
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.
Transport
Router

44. Name three types of connections that can use full duplex.
11000000.10101000.00001010.00001111
Switch to switch - host to host - switch to host
00001010.00001011.00001100.01100011
The Transport layer user virtual circuits to create a reliable connection between two hosts.

45. This device creates many smaller collision domains - but the network is still one large broadcast domain.
84:D2:43:B3
The Transport layer segments user data.
Switch or bridge
The Network layer provides logical addressing - typically IP addressing and routing.

46. This device uses hardware addresses to filter a network.
Network
Bridge or switch
The Data Link layer is responsible for the framing of data packets.
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.

47. This device can measure the distance to a remote network.
Fiber-opticcable
Transport
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.

48. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Data Link layer frames packets received from the Network layer.
RJ45 UTP crossover cable.
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.

49. Which layer segments and reassembles data into a data stream?
Data - segment - packet - frame - bit
Switch or bridge
Hub
Transport

50. Which layer is responsible for creating - managing - and terminating sessions between applications?
Source and destination MAC address and FCS field
The Session layer sets up - maintains - and terminates sessions between applications.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
To create more collision domains and to add more bandwidth for users.