Test your basic knowledge |

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. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Network
3 - 2 - 1 - none
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer provides routing through an internetwork and logical addressing.

2. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Transport
Segments - packets - frames - bits
84:D2:43:B3
Data - segment - packet - frame - bit

3. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Decrease the window size.
The Data Link layer is responsible for the framing of data packets.
Data - segment - packet - frame - bit
84:D2:43:B3

4. This device can measure the distance to a remote network.
The Network layer provides logical addressing - typically IP addressing and routing.
Router
198.211.57.209
Hub and repeater

5. This device can never run full duplex.
Transport
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).
Hub
Data Link (LLC sublayer)

6. This device uses hardware addresses to filter a 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.
Bridge or switch
84:D2:43:B3
Data Link (LLC sublayer)

7. Which layer is responsible for creating - managing - and terminating sessions between applications?
204.51.170.85
The Session layer sets up - maintains - and terminates sessions between applications.
132.210.184.166
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

8. Ethernet is defined at these layers.
Data Link & Physical
Hub
Decrease the window size.
11000000.10101000.00001010.00001111

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

10. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
RJ45 UTP crossover cable.
Router
Switch or bridge

11. At which layer is routing implemented - enabling connections and path selection between two end systems?
RJ45 UTP rolled cable.
Hub and repeater
The Network layer provides routing through an internetwork and logical addressing.
Layer 4

12. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Hub and repeater
Hub
Packet switching - Packet filtering - Internetwork communication - Path selection
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

13. This device creates many smaller collision domains - but the network is still one large broadcast domain.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Switch or bridge
The Data Link layer is responsible for the framing of data packets.
Transport

14. 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 Session layer sets up - maintains - and terminates sessions between applications.
The Presentation layer makes sure that data is in a readable format for the Application layer.
CA:F5:83:EB
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).

15. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Decrease the window size.
Packet switching - Packet filtering - Internetwork communication - Path selection
Switch or bridge
Segments - packets - frames - bits

16. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Transport
Data Link
RJ45 UTP crossover cable.

17. This layer supports flow control and sequencing.
The Session layer creates sessions between different hosts' applications.
Layer 4
Bridge or switch
Transport

18. Which layer is represented by packets?
The Session layer sets up - maintains - and terminates sessions between applications.
D8:1B:3D:76
The Network layer creates packets out of segments handed down from the Transport layer.
Fiber-opticcable

19. When data is encapsulated - which is the correct order?
Data Link (LLC sublayer)
Packet switching - Packet filtering - Internetwork communication - Path selection
Data - segment - packet - frame - bit
00001010.00001011.00001100.01100011

20. This device creates one big collision domain and one large broadcast domain.
Transport
Transport
Hub and repeater
Hub

21. 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?
The Data Link layer is responsible for the framing of data packets.
RJ45 UTP crossover cable.
Transport
Decrease the window size.

22. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
183/B7
198.211.57.209
Packet switching - Packet filtering - Internetwork communication - Path selection
D8:1B:3D:76

23. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
To provide a means for the receiver to govern the amount of data sent by the sender.
RJ45 UTP rolled cable.
Transport
132.210.184.166

24. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Switch or bridge
Bridge or switch

25. What are two purposes for segmentation with a bridge?
The Session layer sets up - maintains - and terminates sessions between applications.
To create more collision domains and to add more bandwidth for users.
Data Link & Physical
Packet switching - Packet filtering - Internetwork communication - Path selection

26. Name three types of connections that can use full duplex.
Bridge or switch
Switch to switch - host to host - switch to host
Switch or bridge
Router

27. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Data Link layer frames packets received from the Network layer.
Data - segment - packet - frame - bit
183/B7
Fiber-opticcable

28. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
To create more collision domains and to add more bandwidth for users.
RJ45 UTP rolled cable.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Source and destination MAC address and FCS field

29. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
48 bits (6 bytes)
The Physical layer is responsible for the electrical and mechanical connections between devices.
204.51.170.85
The Session layer sets up - maintains - and terminates sessions between applications.

30. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Data Link layer is responsible for the framing of data packets.
Bridge or switch
Layer 4
The Transport layer user virtual circuits to create a reliable connection between two hosts.

31. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
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.
Router

32. This layer uses service access points.
Data Link (LLC sublayer)
The Transport layer segments user data.
84:D2:43:B3
Data - segment - packet - frame - bit

33. 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.
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
Hub

34. Which layer is represented by frames?
The Transport layer segments user data.
The Data Link layer frames packets received from the Network layer.
The Session layer creates sessions between different hosts' applications.
Bridge or switch

35. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
132.210.184.166
Network
Source and destination MAC address and FCS field
3 - 2 - 1 - none

36. Which layer segments and reassembles data into a data stream?
Transport
Data Link (LLC sublayer)
11000000.10101000.00001010.00001111
Fiber-opticcable

37. Convert 192.168.10.15 to binary format.
Router
11000000.10101000.00001010.00001111
Router
204.51.170.85

38. Logical addressing is used at this layer.
The Network layer provides routing through an internetwork and logical addressing.
Data Link (LLC sublayer)
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).
Network

39. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Decrease the window size.
204.51.170.85
198.211.57.209
D8:1B:3D:76

40. Which of the following are 3 common types of flow control?
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
Buffering - windowing - congestion avoidance
Network

41. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Transport
Transport
198.211.57.209
Data Link

42. 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.
Transport
Transport
Switch or bridge

43. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Router
Bridge or switch

44. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
The Transport layer segments user data.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
132.210.184.166

45. Which layer is represented by bits?
Fiber-opticcable
00001010.00001011.00001100.01100011
Bridge or switch
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

46. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
Packet switching - Packet filtering - Internetwork communication - Path selection
Switch or bridge
Hub

47. Which layer provides logical addressing that routers will use for path determination?
The Session layer sets up - maintains - and terminates sessions between applications.
48 bits (6 bytes)
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.

48. Which two fields are contained within an IEEE Ethernet frame header?
3 - 2 - 1 - none
The Network layer provides logical addressing - typically IP addressing and routing.
Source and destination MAC address and FCS field
00001010.00001011.00001100.01100011

49. This device sends and receives information about the Network layer.
Packet switching - Packet filtering - Internetwork communication - Path selection
Data - segment - packet - frame - bit
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Router

50. This layer creates a virtual circuit before transmitting between two end stations.
Transport
CA:F5:83:EB
Router
3 - 2 - 1 - none