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 segments?
The Transport layer segments user data.
Network
The Network layer provides logical addressing - typically IP addressing and routing.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

2. This device breaks up collision domains and broadcast domains.
Router
Data Link & Physical
Source and destination MAC address and FCS field
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

3. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Network layer provides logical addressing - typically IP addressing and routing.
Hub and repeater
The Transport layer segments user data.
Segments - packets - frames - bits

4. Why does the data communication industry use the layered OSI reference model? (Name two)
The Session layer creates sessions between different hosts' 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.
10101100.00010000.00010100.00110111
Switch or bridge

5. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
RJ45 UTP crossover 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
The Data Link layer frames packets received from the Network layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

6. Ethernet is defined at these layers.
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
Layer 4
Data Link & Physical
RJ45 UTP crossover cable.

7. This device sends and receives information about the Network layer.
Router
RJ45 UTP crossover cable.
The Session layer creates sessions between different hosts' applications.
D8:1B:3D:76

8. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
RJ45 UTP rolled cable.
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.
10101100.00010000.00010100.00110111

9. Which layer is represented by packets?
Source and destination MAC address and FCS field
The Network layer creates packets out of segments handed down from the Transport layer.
Hub and repeater
CA:F5:83:EB

10. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer creates packets out of segments handed down from the Transport layer.
198.211.57.209
Switch or bridge

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

12. 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 Physical layer is responsible for transporting 1s and 0s in a digital signal.
Switch to switch - host to host - switch to host
Router

13. Which layer provides logical addressing that routers will use for path determination?
Data Link & Physical
Data Link
The Network layer provides logical addressing - typically IP addressing and routing.
Fiber-opticcable

14. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
Hub and repeater
183/B7
11000000.10101000.00001010.00001111

15. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
RJ45 UTP crossover cable.
Data - segment - packet - frame - bit
Transport

16. Convert 172.16.20.55 to binary format.
Fiber-opticcable
10101100.00010000.00010100.00110111
The Data Link layer frames packets received from the Network layer.
84:D2:43:B3

17. Logical addressing is used at this layer.
D8:1B:3D:76
10101100.00010000.00010100.00110111
Network
11000000.10101000.00001010.00001111

18. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Data Link layer is responsible for the framing of data packets.
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 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.

19. This device uses hardware addresses to filter a network.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
Data Link & Physical
Bridge or switch

20. What type of RJ45 UTP cable is used between switches?
Bridge or switch
Transport
RJ45 UTP crossover cable.
The Physical layer is responsible for the electrical and mechanical connections between devices.

21. Segmentation of a data stream happens at which layer of the OSI model?
Transport
Segments - packets - frames - bits
Data Link
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

22. What is the purpose of flow control?
Switch or bridge
To create more collision domains and to add more bandwidth for users.
The Data Link layer is responsible for the framing of data packets.
To provide a means for the receiver to govern the amount of data sent by the sender.

23. At which layer is routing implemented - enabling connections and path selection between two end systems?
Hub
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.
Data Link (LLC sublayer)

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

25. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
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.
The Data Link layer is responsible for the framing of data packets.
To provide a means for the receiver to govern the amount of data sent by the sender.

26. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Data Link & Physical
The Physical layer is responsible for the electrical and mechanical connections between devices.
To provide a means for the receiver to govern the amount of data sent by the sender.
Network

27. This device creates one big collision domain and one large broadcast domain.
Hub
RJ45 UTP crossover cable.
Source and destination MAC address and FCS field
The Network layer creates packets out of segments handed down from the Transport layer.

28. Which layer is responsible for creating - managing - and terminating sessions between applications?
3 - 2 - 1 - none
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
The Transport layer segments user data.

29. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
00001010.00001011.00001100.01100011
Hub and repeater
Network

30. Which layer is represented by 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 is responsible for transporting 1s and 0s in a digital signal.
Source and destination MAC address and FCS field
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

31. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Session layer creates sessions between different hosts' applications.
Transport
The Transport layer segments user data.
204.51.170.85

32. This device can never run full duplex.
Data Link & Physical
CA:F5:83:EB
3 - 2 - 1 - none
Hub

33. Which layer segments and reassembles data into a data stream?
Router
Transport
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

34. When data is encapsulated - which is the correct order?
Switch or bridge
Network
132.210.184.166
Data - segment - packet - frame - bit

35. This layer uses service access points.
Data Link (LLC sublayer)
Transport
Data Link & Physical
The Network layer provides logical addressing - typically IP addressing and routing.

36. 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?
198.211.57.209
Layer 4
RJ45 UTP crossover cable.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

37. 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.
CA:F5:83:EB
Buffering - windowing - congestion avoidance
Network

38. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link (LLC sublayer)
Data Link
Segments - packets - frames - bits
Layer 4

39. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
Transport
The Network layer provides routing through an internetwork and logical addressing.
Router

40. Name four router functions.
Transport
The Session layer creates sessions between different hosts' applications.
Packet switching - Packet filtering - Internetwork communication - Path selection
183/B7

41. 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
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
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).
Fiber-opticcable

42. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Data Link layer is responsible for the framing of data packets.
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.
Hub

43. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
Data Link & Physical
The Network layer creates packets out of segments handed down from the Transport layer.
Data - segment - packet - frame - bit

44. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
RJ45 UTP crossover cable.
198.211.57.209
The Network layer provides logical addressing - typically IP addressing and routing.
Transport

45. Which layer is represented by frames?
48 bits (6 bytes)
Hub and repeater
The Data Link layer frames packets received from the Network layer.
The Session layer sets up - maintains - and terminates sessions between applications.

46. Convert 192.168.10.15 to binary format.
To create more collision domains and to add more bandwidth for users.
11000000.10101000.00001010.00001111
Source and destination MAC address and FCS field
The Presentation layer makes sure that data is in a readable format for the Application layer.

47. This device can measure the distance to a remote network.
Transport
Router
Data Link (LLC sublayer)
Hub

48. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
11000000.10101000.00001010.00001111
Data Link
132.210.184.166
Bridge or switch

49. This layer creates a virtual circuit before transmitting between two end stations.
Transport
The Session layer creates sessions between different hosts' applications.
Data Link
RJ45 UTP crossover cable.

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