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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 combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Session layer creates sessions between different hosts' applications.
The Data Link layer is responsible for the framing of data packets.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport

2. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
132.210.184.166
198.211.57.209
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.

3. Convert 172.16.20.55 to binary format.
CA:F5:83:EB
10101100.00010000.00010100.00110111
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Source and destination MAC address and FCS field

4. Logical addressing is used at this layer.
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Network
Hub

5. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
84:D2:43:B3
Router
Layer 4

6. 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 Session layer sets up - maintains - and terminates sessions between applications.
RJ45 UTP rolled cable.

7. This device breaks up collision domains and broadcast domains.
Fiber-opticcable
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.
Router

8. This device can measure the distance to a remote network.
10101100.00010000.00010100.00110111
The Network layer provides logical addressing - typically IP addressing and routing.
Router
Buffering - windowing - congestion avoidance

9. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
To provide a means for the receiver to govern the amount of data sent by the sender.
10101100.00010000.00010100.00110111
The Session layer creates sessions between different hosts' applications.

10. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
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).
Router
Segments - packets - frames - bits

11. Which layer is responsible for creating - managing - and terminating sessions between applications?
Router
The Session layer sets up - maintains - and terminates sessions between applications.
Router
Fiber-opticcable

12. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Physical layer is responsible for the electrical and mechanical connections between devices.
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 & Physical

13. 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 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 rolled cable.
Network

14. This layer supports flow control and sequencing.
Fiber-opticcable
Data Link
Switch to switch - host to host - switch to host
Transport

15. Convert 10.11.12.99 to binary format.
198.211.57.209
11000000.10101000.00001010.00001111
Transport
00001010.00001011.00001100.01100011

16. Convert 192.168.10.15 to binary format.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Data Link layer frames packets received from the Network layer.
11000000.10101000.00001010.00001111
198.211.57.209

17. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub and repeater
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).
Source and destination MAC address and FCS field

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

19. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
48 bits (6 bytes)
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.
3 - 2 - 1 - none
204.51.170.85

20. Which layer provides logical addressing that routers will use for path determination?
D8:1B:3D:76
Data Link (LLC sublayer)
The Network layer provides logical addressing - typically IP addressing and routing.
RJ45 UTP rolled cable.

21. Which layer segments and reassembles data into a data stream?
To create more collision domains and to add more bandwidth for users.
The Network layer creates packets out of segments handed down from the Transport layer.
The Network layer provides routing through an internetwork and logical addressing.
Transport

22. Why does the data communication industry use the layered OSI reference model? (Name two)
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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
CA:F5:83:EB

23. Which layer is represented by bits?
Decrease the window size.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
D8:1B:3D:76
The Data Link layer frames packets received from the Network layer.

24. Which layer is represented by packets?
204.51.170.85
Router
Transport
The Network layer creates packets out of segments handed down from the Transport layer.

25. This device sends and receives information about the Network layer.
To create more collision domains and to add more bandwidth for users.
The Data Link layer is responsible for the framing of data packets.
198.211.57.209
Router

26. This device can never run full duplex.
Hub
132.210.184.166
Data - segment - packet - frame - bit
Fiber-opticcable

27. This device uses hardware addresses to filter a network.
Router
Bridge or switch
The Session layer sets up - maintains - and terminates sessions between applications.
Hub

28. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Data Link (LLC sublayer)
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network
Switch to switch - host to host - switch to host

29. 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.
Transport
Source and destination MAC address and FCS field
To create more collision domains and to add more bandwidth for users.

30. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Data Link
3 - 2 - 1 - none
Network
Router

31. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Data Link (LLC sublayer)
Router
The Transport layer segments user data.

32. This layer uses service access points.
Data Link (LLC sublayer)
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.
Switch to switch - host to host - switch to host
132.210.184.166

33. 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?
To create more collision domains and to add more bandwidth for users.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
Router

34. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
132.210.184.166
Data Link & Physical
204.51.170.85

35. 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
RJ45 UTP crossover cable.
Data Link (LLC sublayer)
183/B7
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).

36. Which two fields are contained within an IEEE Ethernet frame header?
00001010.00001011.00001100.01100011
10101100.00010000.00010100.00110111
The Data Link layer is responsible for the framing of data packets.
Source and destination MAC address and FCS field

37. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Data Link & Physical
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
204.51.170.85

38. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Session layer sets up - maintains - and terminates sessions between applications.
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
Switch or bridge

39. Name three types of connections that can use full duplex.
The Session layer sets up - maintains - and terminates sessions between applications.
Switch to switch - host to host - switch to host
Layer 4
The Transport layer segments user data.

40. Ethernet is defined at these layers.
RJ45 UTP crossover cable.
Data Link & Physical
Hub
Switch or bridge

41. What is the purpose of flow control?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport
48 bits (6 bytes)

42. 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.
Decrease the window size.
198.211.57.209

43. 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.
Switch or bridge
3 - 2 - 1 - none
Router

44. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Decrease the window size.
Switch or bridge
RJ45 UTP rolled cable.
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).

45. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Network
84:D2:43:B3
Fiber-opticcable
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).

46. This device creates one big collision domain and one large broadcast domain.
Hub
Network
Data Link
Packet switching - Packet filtering - Internetwork communication - Path selection

47. What are two purposes for segmentation with a bridge?
183/B7
To create more collision domains and to add more bandwidth for users.
Data Link (LLC sublayer)
Switch or bridge

48. Segmentation of a data stream happens at which layer of the OSI model?
Transport
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 creates sessions between different hosts' applications.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

49. This layer creates a virtual circuit before transmitting between two end stations.
D8:1B:3D:76
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
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport

50. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Data Link & Physical
183/B7
Transport
Hub