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. This device can measure the distance to a remote network.
Transport
Bridge or switch
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.

2. Why does the data communication industry use the layered OSI reference model? (Name two)
Hub and repeater
3 - 2 - 1 - none
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

3. This device creates one big collision domain and one large broadcast domain.
Transport
Data Link (LLC sublayer)
Hub
Packet switching - Packet filtering - Internetwork communication - Path selection

4. This layer supports flow control and sequencing.
The Network layer provides routing through an internetwork and logical addressing.
00001010.00001011.00001100.01100011
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport

5. Which layer is represented by bits?
183/B7
204.51.170.85
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
RJ45 UTP rolled cable.

6. This device breaks up collision domains and broadcast domains.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router
Fiber-opticcable
The Data Link layer is responsible for the framing of data packets.

7. Convert 10.11.12.99 to binary format.
The Network layer provides logical addressing - typically IP addressing and routing.
00001010.00001011.00001100.01100011
204.51.170.85
Hub and repeater

8. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Data Link (LLC sublayer)
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.

9. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
198.211.57.209
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Data Link layer is responsible for the framing of data packets.
Transport

10. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
Hub
To provide a means for the receiver to govern the amount of data sent by the sender.
204.51.170.85

11. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
204.51.170.85
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
Transport

12. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Data Link & Physical
Fiber-opticcable
Segments - packets - frames - bits
11000000.10101000.00001010.00001111

13. 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.
Layer 4
Router
RJ45 UTP crossover cable.

14. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Layer 4
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
RJ45 UTP crossover cable.
3 - 2 - 1 - none

15. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
To create more collision domains and to add more bandwidth for users.
84:D2:43:B3
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).
CA:F5:83:EB

16. This layer uses service access points.
Network
The Session layer creates sessions between different hosts' applications.
204.51.170.85
Data Link (LLC sublayer)

17. What is the purpose of flow control?
Bridge or switch
198.211.57.209
The Data Link layer frames packets received from the Network layer.
To provide a means for the receiver to govern the amount of data sent by the sender.

18. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
204.51.170.85
Router
The Network layer creates packets out of segments handed down from the Transport layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.

19. This device uses hardware addresses to filter a network.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Router
Bridge or switch
Data Link (LLC sublayer)

20. Which layer is responsible for creating - managing - and terminating sessions between applications?
Bridge or switch
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
The Session layer sets up - maintains - and terminates sessions between applications.

21. Which layer is represented by packets?
To provide a means for the receiver to govern the amount of data sent by the sender.
Switch or bridge
The Network layer creates packets out of segments handed down from the Transport layer.
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.

22. Convert 192.168.10.15 to binary format.
The Data Link layer frames packets received from the Network layer.
11000000.10101000.00001010.00001111
RJ45 UTP crossover cable.
3 - 2 - 1 - none

23. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
00001010.00001011.00001100.01100011
Transport
Layer 4

24. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link (LLC sublayer)
10101100.00010000.00010100.00110111

25. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Router
3 - 2 - 1 - none
Network
To provide a means for the receiver to govern the amount of data sent by the sender.

26. What are two purposes for segmentation with a bridge?
Network
Hub and repeater
Data Link (LLC sublayer)
To create more collision domains and to add more bandwidth for users.

27. Name four router functions.
Transport
Hub and repeater
11000000.10101000.00001010.00001111
Packet switching - Packet filtering - Internetwork communication - Path selection

28. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Network layer provides routing through an internetwork and logical addressing.
Network
Hub and repeater
198.211.57.209

29. 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.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer creates packets out of segments handed down from the Transport layer.

30. Name three types of connections that can use full duplex.
RJ45 UTP crossover cable.
The Network layer creates packets out of segments handed down from the Transport layer.
3 - 2 - 1 - none
Switch to switch - host to host - switch to host

31. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Network
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
132.210.184.166

32. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Hub
The Network layer creates packets out of segments handed down from the Transport layer.
The Data Link layer is responsible for the framing of data packets.

33. When data is encapsulated - which is the correct order?
Transport
To create more collision domains and to add more bandwidth for users.
Data - segment - packet - frame - bit
Transport

34. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Router
Fiber-opticcable
Data Link & Physical

35. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link
Router
48 bits (6 bytes)

36. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Network layer provides routing through an internetwork and logical addressing.
Router
3 - 2 - 1 - none
Hub

37. 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.
The Session layer sets up - maintains - and terminates sessions between applications.
Data Link
Transport

38. 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.
Fiber-opticcable
The Presentation layer makes sure that data is in a readable format for the Application layer.
11000000.10101000.00001010.00001111

39. This device can never run full duplex.
Hub and repeater
RJ45 UTP rolled cable.
Fiber-opticcable
Hub

40. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Router
RJ45 UTP rolled cable.
Data Link & Physical

41. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Bridge or switch
RJ45 UTP rolled cable.
Transport
D8:1B:3D:76

42. 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?
Transport
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.
Decrease the window size.

43. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Transport
The Data Link layer is responsible for the framing of data packets.
Hub and repeater
132.210.184.166

44. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link & Physical
The Session layer creates sessions between different hosts' applications.

45. 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
Switch to switch - host to host - switch to host
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.
Network

46. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
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 Presentation layer makes sure that data is in a readable format for the Application layer.
198.211.57.209

47. Ethernet is defined at these layers.
Hub
00001010.00001011.00001100.01100011
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link & Physical

48. What type of RJ45 UTP cable is used between switches?
Transport
183/B7
RJ45 UTP crossover cable.
To create more collision domains and to add more bandwidth for users.

49. Logical addressing is used at this layer.
3 - 2 - 1 - none
Network
11000000.10101000.00001010.00001111
183/B7

50. Which layer segments and reassembles data into a data stream?
The Session layer sets up - maintains - and terminates sessions between applications.
Buffering - windowing - congestion avoidance
Transport
Hub