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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 is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
The Network layer provides logical addressing - typically IP addressing and routing.
D8:1B:3D:76
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.

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

3. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Router
48 bits (6 bytes)
The Physical layer is responsible for the electrical and mechanical connections between devices.

4. Which layer is represented by bits?
Hub
The Network layer provides logical addressing - typically IP addressing and routing.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
To provide a means for the receiver to govern the amount of data sent by the sender.

5. Convert 10.11.12.99 to binary 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.
00001010.00001011.00001100.01100011
Data - segment - packet - frame - bit
Hub

6. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
Hub and repeater
Segments - packets - frames - bits
Switch to switch - host to host - switch to host

7. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Data Link layer is responsible for the framing of data packets.
The Session layer sets up - maintains - and terminates sessions between applications.
The Physical layer is responsible for the electrical and mechanical connections between devices.

8. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
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 Network layer provides routing through an internetwork and logical addressing.
132.210.184.166

9. Logical addressing is used at this layer.
Transport
Transport
Source and destination MAC address and FCS field
Network

10. This device can never run full duplex.
183/B7
D8:1B:3D:76
Hub
Layer 4

11. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Transport
Hub and repeater
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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

12. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Data Link
183/B7
Network
198.211.57.209

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

14. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Source and destination MAC address and FCS field
The Presentation layer makes sure that data is in a readable format for the Application layer.
Fiber-opticcable
3 - 2 - 1 - none

15. This device sends and receives information about the Network layer.
Data - segment - packet - frame - bit
The Network layer creates packets out of segments handed down from the Transport layer.
Router
204.51.170.85

16. This device breaks up collision domains and broadcast domains.
The Transport layer segments user data.
Buffering - windowing - congestion avoidance
Router
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.

17. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Transport
Network
Fiber-opticcable
The Session layer creates sessions between different hosts' applications.

18. 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.
132.210.184.166
Data Link & Physical
Data Link

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

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20. Which layer is responsible for creating - managing - and terminating sessions between applications?
84:D2:43:B3
To provide a means for the receiver to govern the amount of data sent by the sender.
Fiber-opticcable
The Session layer sets up - maintains - and terminates sessions between applications.

21. 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.
183/B7
Router
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

22. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
D8:1B:3D:76
3 - 2 - 1 - none
The Network layer provides logical addressing - typically IP addressing and routing.

23. 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
The Physical layer is responsible for the electrical and mechanical connections between devices.
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.

24. This layer uses service access points.
Fiber-opticcable
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link (LLC sublayer)
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

25. This layer creates a virtual circuit before transmitting between two end stations.
RJ45 UTP rolled cable.
Buffering - windowing - congestion avoidance
48 bits (6 bytes)
Transport

26. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
D8:1B:3D:76
Buffering - windowing - congestion avoidance

27. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Switch to switch - host to host - switch to host
RJ45 UTP crossover cable.
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.
RJ45 UTP rolled cable.

28. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
Transport
The Data Link layer is responsible for the framing of data packets.
11000000.10101000.00001010.00001111

29. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
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
D8:1B:3D:76

30. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Router
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

31. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Transport
RJ45 UTP crossover cable.
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link

32. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
3 - 2 - 1 - none
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
Bridge or switch

33. Which layer provides logical addressing that routers will use for path determination?
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.
11000000.10101000.00001010.00001111
D8:1B:3D:76

34. Which of the following are 3 common types of flow control?
The Data Link layer is responsible for the framing of data packets.
Hub
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.

35. 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.
The Data Link layer is responsible for the framing of data packets.
00001010.00001011.00001100.01100011
11000000.10101000.00001010.00001111

36. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer segments user data.
198.211.57.209
Data Link & Physical

37. This device creates many smaller collision domains - but the network is still one large broadcast domain.
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
The Data Link layer frames packets received from the Network layer.
Switch or bridge

38. This device can measure the distance to a remote network.
Decrease the window size.
Router
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

39. 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
Network
Source and destination MAC address and FCS field
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 Session layer creates sessions between different hosts' applications.

40. At which layer is routing implemented - enabling connections and path selection between two end systems?
Decrease the window size.
Hub and repeater
Switch to switch - host to host - switch to host
The Network layer provides routing through an internetwork and logical addressing.

41. Convert 172.16.20.55 to binary format.
11000000.10101000.00001010.00001111
Decrease the window size.
10101100.00010000.00010100.00110111
Network

42. Ethernet is defined at these layers.
Source and destination MAC address and FCS field
To provide a means for the receiver to govern the amount of data sent by the sender.
Network
Data Link & Physical

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?
RJ45 UTP rolled cable.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network
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 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link (LLC sublayer)
Network

45. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Data - segment - packet - frame - bit
Decrease the window size.
CA:F5:83:EB

46. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
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 Presentation layer makes sure that data is in a readable format for the Application layer.
Buffering - windowing - congestion avoidance

47. This device uses hardware addresses to filter a network.
84:D2:43:B3
Bridge or switch
11000000.10101000.00001010.00001111
Hub

48. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

49. Name four router functions.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Session layer creates sessions between different hosts' applications.
The Transport layer segments user data.
Packet switching - Packet filtering - Internetwork communication - Path selection

50. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
Transport
Data Link & Physical
The Transport layer segments user data.