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 manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Router
The Presentation layer makes sure that data is in a readable format for the Application layer.
Network
Bridge or switch

2. Convert 192.168.10.15 to binary format.
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
11000000.10101000.00001010.00001111
The Transport layer user virtual circuits to create a reliable connection between two hosts.

3. What is the bit length and expression form of a MAC address?
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.
48 bits (6 bytes)
The Session layer sets up - maintains - and terminates sessions between applications.
The Transport layer segments user data.

4. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
84:D2:43:B3
10101100.00010000.00010100.00110111
48 bits (6 bytes)

5. 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?
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.
Packet switching - Packet filtering - Internetwork communication - Path selection
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

6. This layer supports flow control and sequencing.
Transport
The Data Link layer is responsible for the framing of data packets.
Router
10101100.00010000.00010100.00110111

7. This device can measure the distance to a remote network.
Switch or bridge
Router
D8:1B:3D:76
The Network layer creates packets out of segments handed down from the Transport layer.

8. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Transport
Bridge or switch
The Data Link layer is responsible for the framing of data packets.
The Physical layer is responsible for the electrical and mechanical connections between devices.

9. Which layer provides logical addressing that routers will use for path determination?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
D8:1B:3D:76
The Network layer provides logical addressing - typically IP addressing and routing.
84:D2:43:B3

10. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Data Link
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
3 - 2 - 1 - none

11. Ethernet is defined at these layers.
Data Link & Physical
Switch to switch - host to host - switch to host
Router
D8:1B:3D:76

12. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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.
Transport

13. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
RJ45 UTP crossover cable.
The Session layer creates sessions between different hosts' applications.
Router

14. This device creates one big collision domain and one large broadcast domain.
Transport
Hub
204.51.170.85
Network

15. Segmentation of a data stream happens at which layer of the OSI model?
RJ45 UTP crossover cable.
Transport
198.211.57.209
Router

16. This device uses hardware addresses to filter a network.
The Presentation layer makes sure that data is in a readable format for the Application layer.
48 bits (6 bytes)
Bridge or switch
Hub and repeater

17. Which of the following are 3 common types of flow control?
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
Buffering - windowing - congestion avoidance
The Physical layer is responsible for the electrical and mechanical connections between devices.

18. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Source and destination MAC address and FCS field
The Data Link layer frames packets received from the Network layer.
Data Link
Hub

19. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Switch or bridge
Source and destination MAC address and FCS field
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.

20. Convert 172.16.20.55 to binary format.
Router
Transport
10101100.00010000.00010100.00110111
The Network layer provides routing through an internetwork and logical addressing.

21. This device breaks up collision domains and broadcast domains.
Data Link (LLC sublayer)
Router
Hub
3 - 2 - 1 - none

22. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Data Link layer is responsible for the framing of data packets.
132.210.184.166
204.51.170.85
Switch or bridge

23. At which layer is routing implemented - enabling connections and path selection between two end systems?
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.
The Network layer provides routing through an internetwork and logical addressing.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

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

25. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
10101100.00010000.00010100.00110111
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
204.51.170.85
The Network layer provides logical addressing - typically IP addressing and routing.

26. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
D8:1B:3D:76
198.211.57.209
Packet switching - Packet filtering - Internetwork communication - Path selection
CA:F5:83:EB

27. Logical addressing is used at this layer.
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.
Data Link & Physical
Network

28. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Router
The Network layer provides routing through an internetwork and logical addressing.
Buffering - windowing - congestion avoidance

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

30. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Transport
Hub and repeater
The Data Link layer is responsible for the framing of data packets.
183/B7

31. When data is encapsulated - which is the correct order?
10101100.00010000.00010100.00110111
Source and destination MAC address and FCS field
CA:F5:83:EB
Data - segment - packet - frame - bit

32. This layer uses service access points.
Data Link (LLC sublayer)
To provide a means for the receiver to govern the amount of data sent by the sender.
The Network layer provides routing through an internetwork and logical addressing.
Transport

33. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
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
Hub and repeater

34. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
RJ45 UTP crossover cable.
Layer 4
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.
To provide a means for the receiver to govern the amount of data sent by the sender.

35. Why does the data communication industry use the layered OSI reference model? (Name two)
CA:F5:83:EB
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.
Transport
Transport

36. Which layer is represented by bits?
CA:F5:83:EB
Data Link & Physical
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Network

37. 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 Network layer provides routing through an internetwork and logical addressing.
Decrease the window size.
The Transport layer segments user data.
Network

38. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Source and destination MAC address and FCS field
D8:1B:3D:76
To provide a means for the receiver to govern the amount of data sent by the sender.

39. Which layer is represented by frames?
204.51.170.85
The Data Link layer frames packets received from the Network layer.
Switch or bridge
11000000.10101000.00001010.00001111

40. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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
Network
Fiber-opticcable

41. This device sends and receives information about the Network layer.
Router
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.
Switch to switch - host to host - switch to host

42. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
00001010.00001011.00001100.01100011
132.210.184.166
RJ45 UTP crossover cable.

43. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
Data - segment - packet - frame - bit
The Transport layer user virtual circuits to create a reliable connection between two hosts.
To provide a means for the receiver to govern the amount of data sent by the sender.

44. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Packet switching - Packet filtering - Internetwork communication - Path selection
11000000.10101000.00001010.00001111
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
183/B7

45. Which layer is responsible for creating - managing - and terminating sessions between applications?
48 bits (6 bytes)
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 Session layer sets up - maintains - and terminates sessions between applications.
3 - 2 - 1 - none

46. This layer creates a virtual circuit before transmitting between two end stations.
Transport
3 - 2 - 1 - none
Bridge or switch
RJ45 UTP crossover cable.

47. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Session layer creates sessions between different hosts' applications.
204.51.170.85
The Session layer sets up - maintains - and terminates sessions between applications.
Segments - packets - frames - bits

48. 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.
Transport
84:D2:43:B3
Network

49. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Segments - packets - frames - bits
CA:F5:83:EB
The Network layer provides routing through an internetwork and logical addressing.
The Transport layer segments user data.

50. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
48 bits (6 bytes)
The Data Link layer frames packets received from the Network layer.
Fiber-opticcable
Segments - packets - frames - bits