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 segments and reassembles data into a data stream?
Switch or bridge
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.
Network
Transport

2. This device can measure the distance to a remote network.
Router
Network
Hub and repeater
RJ45 UTP rolled cable.

3. This device uses hardware addresses to filter a network.
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport
Router
Bridge or switch

4. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Network layer provides routing through an internetwork and logical addressing.
Router
Hub
Router

5. Convert 172.16.20.55 to binary format.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Network
10101100.00010000.00010100.00110111
Packet switching - Packet filtering - Internetwork communication - Path selection

6. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Data Link layer is responsible for the framing of data packets.
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
CA:F5:83:EB

7. Which two fields are contained within an IEEE Ethernet frame header?
Transport
Source and destination MAC address and FCS field
Layer 4
The Presentation layer makes sure that data is in a readable format for the Application layer.

8. 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 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.
The Transport layer segments user data.
10101100.00010000.00010100.00110111

9. 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.
48 bits (6 bytes)
Network
00001010.00001011.00001100.01100011

10. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
CA:F5:83:EB
84:D2:43:B3
3 - 2 - 1 - none

11. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Network
48 bits (6 bytes)
The Data Link layer is responsible for the framing of data packets.
The Transport layer segments user data.

12. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Bridge or switch
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Data Link layer frames packets received from the Network layer.

13. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Decrease the window size.
204.51.170.85
Network

14. Which layer is represented by bits?
3 - 2 - 1 - none
Bridge or switch
RJ45 UTP rolled cable.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

15. What is the bit length and expression form of a MAC address?
Data Link & Physical
48 bits (6 bytes)
183/B7
Hub

16. What is the purpose of flow control?
132.210.184.166
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link
Buffering - windowing - congestion avoidance

17. What type of RJ45 UTP cable is used between switches?
00001010.00001011.00001100.01100011
RJ45 UTP crossover cable.
Network
Router

18. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
00001010.00001011.00001100.01100011
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub and repeater

19. Convert 10.11.12.99 to binary format.
CA:F5:83:EB
The Network layer provides logical addressing - typically IP addressing and routing.
00001010.00001011.00001100.01100011
Data Link (LLC sublayer)

20. This device creates one big collision domain and one large broadcast domain.
Hub
RJ45 UTP rolled cable.
198.211.57.209
Data Link (LLC sublayer)

21. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
The Network layer provides routing through an internetwork and logical addressing.
204.51.170.85
Fiber-opticcable

22. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Switch to switch - host to host - switch to host
Data Link (LLC sublayer)
The Transport layer user virtual circuits to create a reliable connection between two hosts.

23. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Transport layer segments user data.
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).
Switch or bridge
CA:F5:83:EB

24. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Switch or bridge
Buffering - windowing - congestion avoidance
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
183/B7

25. 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?
Bridge or switch
To provide a means for the receiver to govern the amount of data sent by the sender.
The Network layer provides logical addressing - typically IP addressing and routing.
Decrease the window size.

26. Convert 192.168.10.15 to binary format.
Router
Bridge or switch
To provide a means for the receiver to govern the amount of data sent by the sender.
11000000.10101000.00001010.00001111

27. Name four router functions.
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data - segment - packet - frame - bit
Packet switching - Packet filtering - Internetwork communication - Path selection

28. This layer uses service access points.
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.
Switch or bridge
The Session layer creates sessions between different hosts' applications.

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.
Data Link
RJ45 UTP crossover cable.
The Session layer creates sessions between different hosts' applications.

30. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
CA:F5:83:EB
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

31. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
Layer 4
Transport
Transport

32. Logical addressing is used at this layer.
Transport
Network
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

33. Which layer is represented by segments?
198.211.57.209
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.
The Transport layer segments user data.

34. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Transport
Segments - packets - frames - bits
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 takes frames from the Data Link layer and encodes the 1s and 0s into a digital signal for transmission on the network medium.

35. 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.
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 Physical layer is responsible for the electrical and mechanical connections between devices.
48 bits (6 bytes)

36. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
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
D8:1B:3D:76
Data Link

37. Which layer is represented by packets?
The Network layer provides logical addressing - typically IP addressing and routing.
11000000.10101000.00001010.00001111
The Network layer creates packets out of segments handed down from the Transport layer.
The Data Link layer frames packets received from the Network layer.

38. This layer supports flow control and sequencing.
Segments - packets - frames - bits
Layer 4
Router
Transport

39. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Data Link layer is responsible for the framing of data packets.
CA:F5:83:EB
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.

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

41. What are two purposes for segmentation with a bridge?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
To create more collision domains and to add more bandwidth for users.
132.210.184.166
Decrease the window size.

42. This device sends and receives information about the Network layer.
Router
The Network layer creates packets out of segments handed down from the Transport layer.
10101100.00010000.00010100.00110111
D8:1B:3D:76

43. Which layer is represented by frames?
Data - segment - packet - frame - bit
183/B7
The Data Link layer frames packets received from the Network layer.
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).

44. When data is encapsulated - which is the correct order?
Buffering - windowing - congestion avoidance
CA:F5:83:EB
Router
Data - segment - packet - frame - bit

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
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 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).
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.
Network

46. This layer creates a virtual circuit before transmitting between two end stations.
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 Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
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

47. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
11000000.10101000.00001010.00001111
The Physical layer is responsible for the electrical and mechanical connections between devices.
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

48. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
The Transport layer segments user data.
The Session layer creates sessions between different hosts' applications.
CA:F5:83:EB

49. This device can never run full duplex.
Hub
198.211.57.209
Switch or bridge
10101100.00010000.00010100.00110111

50. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
RJ45 UTP rolled cable.
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
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.