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. Which layer is represented by packets?
11000000.10101000.00001010.00001111
The Data Link layer frames packets received from the Network layer.
The Network layer creates packets out of segments handed down from the Transport layer.
84:D2:43:B3

2. This device breaks up collision domains and broadcast domains.
Transport
Router
To create more collision domains and to add more bandwidth for users.
Bridge or switch

3. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Physical layer is responsible for the electrical and mechanical connections between devices.
Segments - packets - frames - bits
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
To create more collision domains and to add more bandwidth for users.

4. 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?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Fiber-opticcable
The Transport layer segments user data.
Transport

5. Which layer segments and reassembles data into a data stream?
Transport
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
The Physical layer is responsible for the electrical and mechanical connections between devices.

6. This layer uses service access points.
00001010.00001011.00001100.01100011
Data Link (LLC sublayer)
3 - 2 - 1 - none
Network

7. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Router
Network
48 bits (6 bytes)
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

8. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Network layer provides routing through an internetwork and logical addressing.
The Data Link layer is responsible for the framing of data packets.
Data Link
Router

9. Which two fields are contained within an IEEE Ethernet frame header?
Switch to switch - host to host - switch to host
Source and destination MAC address and FCS field
To create more collision domains and to add more bandwidth for users.
Buffering - windowing - congestion avoidance

10. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub and repeater
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 rolled cable.

11. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
To create more collision domains and to add more bandwidth for users.
Hub and repeater
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.
Segments - packets - frames - bits

12. This device sends and receives information about the Network layer.
Hub
84:D2:43:B3
Layer 4
Router

13. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Hub and repeater
The Network layer provides logical addressing - typically IP addressing and routing.
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

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

15. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Data - segment - packet - frame - bit
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport

16. Which layer is represented by frames?
183/B7
The Data Link layer frames packets received from the Network layer.
The Data Link layer is responsible for the framing of data packets.
Source and destination MAC address and FCS field

17. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Network
CA:F5:83:EB
Data Link
The Data Link layer is responsible for the framing of data packets.

18. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Router
00001010.00001011.00001100.01100011
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.
Switch or bridge

19. Logical addressing is used at this layer.
The Network layer provides routing through an internetwork and logical addressing.
The Session layer creates sessions between different hosts' applications.
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.

20. This device can measure the distance to a remote network.
204.51.170.85
To create more collision domains and to add more bandwidth for users.
Layer 4
Router

21. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Data Link layer frames packets received from the Network layer.
The Network layer provides logical addressing - typically IP addressing and routing.
10101100.00010000.00010100.00110111
198.211.57.209

22. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Bridge or switch
The Network layer creates packets out of segments handed down from the Transport layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
204.51.170.85

23. This layer creates a virtual circuit before transmitting between two end stations.
D8:1B:3D:76
Source and destination MAC address and FCS field
Layer 4
Transport

24. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
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
3 - 2 - 1 - none
Data Link (LLC sublayer)
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.

25. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
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.
183/B7

26. 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.
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 Session layer creates sessions between different hosts' applications.
Data Link & Physical

27. Which layer is represented by bits?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
CA:F5:83:EB
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
132.210.184.166

28. This layer supports flow control and sequencing.
The Session layer creates sessions between different hosts' applications.
Transport
48 bits (6 bytes)
132.210.184.166

29. Name four router functions.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Packet switching - Packet filtering - Internetwork communication - Path selection
RJ45 UTP crossover cable.
Data Link & Physical

30. This device uses hardware addresses to filter a network.
Data Link (LLC sublayer)
Bridge or switch
Data - segment - packet - frame - bit
Data Link

31. Convert 192.168.10.15 to binary format.
Data Link (LLC sublayer)
D8:1B:3D:76
11000000.10101000.00001010.00001111
183/B7

32. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
132.210.184.166
Segments - packets - frames - bits
The Network layer provides routing through an internetwork and logical addressing.
Layer 4

33. When data is encapsulated - which is the correct order?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data - segment - packet - frame - bit
3 - 2 - 1 - none
The Presentation layer makes sure that data is in a readable format for the Application layer.

34. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
183/B7
48 bits (6 bytes)
Data Link
The Presentation layer makes sure that data is in a readable format for the Application layer.

35. 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?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Decrease the window size.
00001010.00001011.00001100.01100011
Transport

36. Which layer is represented by segments?
Layer 4
The Transport layer segments user data.
Hub and repeater
Packet switching - Packet filtering - Internetwork communication - Path selection

37. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Hub and repeater
132.210.184.166
Bridge or switch

38. 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?
183/B7
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.
The Presentation layer makes sure that data is in a readable format for the Application layer.

39. This device can never run full duplex.
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
198.211.57.209
Hub
The Network layer provides logical addressing - typically IP addressing and routing.

40. Segmentation of a data stream happens at which layer of the OSI model?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Decrease the window size.
Transport
10101100.00010000.00010100.00110111

41. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
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
Decrease the window size.
10101100.00010000.00010100.00110111

42. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer provides logical addressing - typically IP addressing and routing.
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.

43. What are two purposes for segmentation with a bridge?
Buffering - windowing - congestion avoidance
The Transport layer segments user data.
To create more collision domains and to add more bandwidth for users.
The Session layer sets up - maintains - and terminates sessions between applications.

44. This device creates one big collision domain and one large broadcast domain.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer provides routing through an internetwork and logical addressing.
183/B7
Hub

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
Segments - packets - frames - bits
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 Transport layer user virtual circuits to create a reliable connection between two hosts.
The Data Link layer frames packets received from the Network layer.

46. What type of RJ45 UTP cable is used between switches?
CA:F5:83:EB
RJ45 UTP crossover cable.
00001010.00001011.00001100.01100011
Segments - packets - frames - bits

47. Which layer provides logical addressing that routers will use for path determination?
Switch to switch - host to host - switch to host
The Transport layer segments user data.
Hub
The Network layer provides logical addressing - typically IP addressing and routing.

48. What is the purpose of flow control?
Layer 4
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link (LLC sublayer)
84:D2:43:B3

49. Which of the following are 3 common types of flow control?
RJ45 UTP crossover cable.
Buffering - windowing - congestion avoidance
Data Link & Physical
204.51.170.85

50. Convert 10.11.12.99 to binary format.
To create more collision domains and to add more bandwidth for users.
00001010.00001011.00001100.01100011
Fiber-opticcable
132.210.184.166