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. Segmentation of a data stream happens at which layer of the OSI model?
Router
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport
11000000.10101000.00001010.00001111

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

3. 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?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Physical layer is responsible for the electrical and mechanical connections between devices.
Decrease the window size.
Fiber-opticcable

4. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Router
Buffering - windowing - congestion avoidance
Switch or bridge
The Session layer creates sessions between different hosts' applications.

5. Which of the following are 3 common types of flow control?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
48 bits (6 bytes)
Router
Buffering - windowing - congestion avoidance

6. This device sends and receives information about the Network layer.
Hub and repeater
The Network layer provides routing through an internetwork and logical addressing.
Router
D8:1B:3D:76

7. This layer supports flow control and sequencing.
198.211.57.209
Transport
Buffering - windowing - congestion avoidance
Data Link & Physical

8. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Router
00001010.00001011.00001100.01100011
The Network layer creates packets out of segments handed down from the Transport layer.

9. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Network
Fiber-opticcable
Segments - packets - frames - bits
Decrease the window size.

10. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Transport layer segments user data.
The Network layer provides routing through an internetwork and logical addressing.
Router
Switch to switch - host to host - switch to host

11. Name three types of connections that can use full duplex.
10101100.00010000.00010100.00110111
The Session layer creates sessions between different hosts' applications.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Switch to switch - host to host - switch to host

12. Which layer is responsible for creating - managing - and terminating sessions between applications?
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link
The Session layer sets up - maintains - and terminates sessions between applications.

13. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
10101100.00010000.00010100.00110111
RJ45 UTP rolled cable.
3 - 2 - 1 - none
The Data Link layer frames packets received from the Network layer.

14. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
The Session layer creates sessions between different hosts' applications.
Decrease the window size.
Data - segment - packet - frame - bit

15. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Transport layer segments user data.
Network
183/B7
48 bits (6 bytes)

16. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Hub and repeater
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.
84:D2:43:B3

17. Which layer is represented by bits?
Data Link
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Decrease the window size.
Transport

18. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
11000000.10101000.00001010.00001111
The Transport layer user virtual circuits to create a reliable connection between two hosts.
84:D2:43:B3
Transport

19. 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?
Switch to switch - host to host - switch to host
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).
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

20. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
The Network layer provides logical addressing - typically IP addressing and routing.
Data Link & Physical
204.51.170.85

21. This device can measure the distance to a remote 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
Packet switching - Packet filtering - Internetwork communication - Path selection
Router
Switch or bridge

22. Which layer is represented by frames?
Segments - packets - frames - bits
Hub
To create more collision domains and to add more bandwidth for users.
The Data Link layer frames packets received from the Network layer.

23. Ethernet is defined at these layers.
RJ45 UTP crossover cable.
Switch to switch - host to host - switch to host
Data Link & Physical
Hub and repeater

24. Logical addressing is used at this layer.
Network
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

25. What are two purposes for segmentation with a bridge?
183/B7
To create more collision domains and to add more bandwidth for users.
Transport
The Data Link layer is responsible for the framing of data packets.

26. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub and repeater
11000000.10101000.00001010.00001111
84:D2:43:B3

27. 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.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Session layer creates sessions between different hosts' applications.

28. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Hub
198.211.57.209
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

29. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Router
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.
The Physical layer is responsible for the electrical and mechanical connections between devices.

30. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Layer 4
3 - 2 - 1 - none
204.51.170.85
Transport

31. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
The Session layer creates sessions between different hosts' applications.
Router
RJ45 UTP rolled cable.

32. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
204.51.170.85
Router
Hub

33. What is the bit length and expression form of a MAC address?
10101100.00010000.00010100.00110111
48 bits (6 bytes)
Buffering - windowing - congestion avoidance
3 - 2 - 1 - none

34. Which layer is represented by segments?
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.
The Network layer provides routing through an internetwork and logical addressing.
D8:1B:3D:76

35. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
D8:1B:3D:76
Network
183/B7
The Presentation layer makes sure that data is in a readable format for the Application layer.

36. Which layer segments and reassembles data into a data stream?
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link
Hub and repeater
Transport

37. This device uses hardware addresses to filter a network.
Bridge or switch
00001010.00001011.00001100.01100011
11000000.10101000.00001010.00001111
The Transport layer user virtual circuits to create a reliable connection between two hosts.

38. This device breaks up collision domains and broadcast domains.
Data Link & Physical
3 - 2 - 1 - none
The Session layer creates sessions between different hosts' applications.
Router

39. When data is encapsulated - which is the correct order?
Transport
The Transport layer segments user data.
Router
Data - segment - packet - frame - bit

40. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
84:D2:43:B3
Switch or bridge
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

41. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Packet switching - Packet filtering - Internetwork communication - Path selection
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.
11000000.10101000.00001010.00001111
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

42. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
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.
Layer 4
Data Link & Physical
Data Link

43. Which layer provides logical addressing that routers will use for path determination?
Hub
Transport
The Network layer provides routing through an internetwork and logical addressing.
The Network layer provides logical addressing - typically IP addressing and routing.

44. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
To create more collision domains and to add more bandwidth for users.
Data Link & Physical
Packet switching - Packet filtering - Internetwork communication - Path selection

45. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
183/B7
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport
10101100.00010000.00010100.00110111

46. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
204.51.170.85
CA:F5:83:EB

47. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Network
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Segments - packets - frames - bits
Hub and repeater

48. What is the purpose of flow control?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Buffering - windowing - congestion avoidance
Hub
To provide a means for the receiver to govern the amount of data sent by the sender.

49. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router
Switch to switch - host to host - switch to host
Layer 4

50. 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.
The Network layer creates packets out of segments handed down from the Transport layer.
The Transport layer segments user data.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.