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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. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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
Decrease the window size.
132.210.184.166

2. This device sends and receives information about the Network layer.
Source and destination MAC address and FCS field
Hub and repeater
Decrease the window size.
Router

3. 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 provides logical addressing - typically IP addressing and routing.
The Network layer creates packets out of segments handed down from the Transport layer.
The Session layer creates sessions between different hosts' applications.

4. When data is encapsulated - which is the correct order?
The Data Link layer is responsible for the framing of data packets.
198.211.57.209
Data - segment - packet - frame - bit
Transport

5. This device uses hardware addresses to filter a network.
Bridge or switch
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Hub
Switch or bridge

6. Which layer is represented by bits?
Switch or bridge
Segments - packets - frames - bits
Data Link & Physical
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

7. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
RJ45 UTP crossover cable.
Switch or bridge
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

8. This device can never run full duplex.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
84:D2:43:B3
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

9. This device breaks up collision domains and broadcast domains.
11000000.10101000.00001010.00001111
Router
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).
Network

10. Which layer segments and reassembles data into a data stream?
The Data Link layer frames packets received from the Network layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.
To create more collision domains and to add more bandwidth for users.
Transport

11. 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?
Data Link & Physical
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.
The Session layer sets up - maintains - and terminates sessions between applications.

12. 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.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer provides logical addressing - typically IP addressing and routing.
CA:F5:83:EB

13. Which layer is responsible for creating - managing - and terminating sessions between applications?
10101100.00010000.00010100.00110111
CA:F5:83:EB
The Session layer sets up - maintains - and terminates sessions between applications.
To provide a means for the receiver to govern the amount of data sent by the sender.

14. What is the purpose of flow control?
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.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

15. Convert 172.16.20.55 to binary format.
84:D2:43:B3
Network
10101100.00010000.00010100.00110111
Hub

16. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Bridge or switch
11000000.10101000.00001010.00001111
3 - 2 - 1 - none

17. Name three types of connections that can use full duplex.
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 to switch - host to host - switch to host
The Session layer sets up - maintains - and terminates sessions between applications.
The Session layer creates sessions between different hosts' applications.

18. Which layer is represented by frames?
198.211.57.209
The Data Link layer frames packets received from the Network layer.
Switch to switch - host to host - switch to host
The Network layer creates packets out of segments handed down from the Transport layer.

19. 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?
Buffering - windowing - congestion avoidance
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 Transport layer segments user data.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

20. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Data Link layer is responsible for the framing of data packets.
3 - 2 - 1 - none
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link & Physical

21. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Data Link & Physical
Segments - packets - frames - bits
RJ45 UTP rolled cable.
Transport

22. 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
Data - segment - packet - frame - bit
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).
Network
The Session layer sets up - maintains - and terminates sessions between applications.

23. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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
CA:F5:83:EB
The Transport layer segments user data.

24. What type of RJ45 UTP cable is used between switches?
Fiber-opticcable
The Network layer provides routing through an internetwork and logical addressing.
Router
RJ45 UTP crossover cable.

25. Convert 192.168.10.15 to binary format.
D8:1B:3D:76
The Session layer creates sessions between different hosts' applications.
11000000.10101000.00001010.00001111
The Data Link layer frames packets received from the Network layer.

26. 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.
Packet switching - Packet filtering - Internetwork communication - Path selection
Decrease the window size.

27. Logical addressing is used at this layer.
Switch to switch - host to host - switch to host
Network
Data - segment - packet - frame - bit
198.211.57.209

28. This device creates one big collision domain and one large broadcast domain.
Data Link (LLC sublayer)
Hub
Transport
48 bits (6 bytes)

29. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Buffering - windowing - congestion avoidance
Hub
The Data Link layer is responsible for the framing of data packets.

30. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Data Link
00001010.00001011.00001100.01100011
198.211.57.209
Data - segment - packet - frame - bit

31. This layer creates a virtual circuit before transmitting between two end stations.
Transport
Decrease the window size.
CA:F5:83:EB
Layer 4

32. Which two fields are contained within an IEEE Ethernet frame header?
CA:F5:83:EB
Source and destination MAC address and FCS field
Network
204.51.170.85

33. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
183/B7
48 bits (6 bytes)
Fiber-opticcable
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. Ethernet is defined at these layers.
183/B7
Data Link & Physical
To provide a means for the receiver to govern the amount of data sent by the sender.
84:D2:43:B3

35. Which of the following are 3 common types of flow control?
183/B7
Buffering - windowing - congestion avoidance
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011

36. Name four router functions.
198.211.57.209
Packet switching - Packet filtering - Internetwork communication - Path selection
Data - segment - packet - frame - bit
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

37. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
10101100.00010000.00010100.00110111
Hub and repeater
D8:1B:3D:76
Network

38. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Buffering - windowing - congestion avoidance
The Network layer creates packets out of segments handed down from the Transport layer.
Source and destination MAC address and FCS field
Layer 4

39. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
00001010.00001011.00001100.01100011
Buffering - windowing - congestion avoidance
198.211.57.209

40. 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?
Router
D8:1B:3D:76
Decrease the window size.
Buffering - windowing - congestion avoidance

41. Segmentation of a data stream happens at which layer of the OSI model?
Router
CA:F5:83:EB
Transport
Hub

42. Which layer is represented by packets?
Source and destination MAC address and FCS field
48 bits (6 bytes)
The Network layer creates packets out of segments handed down from the Transport layer.
183/B7

43. What is the bit length and expression form of a MAC address?
Decrease the window size.
48 bits (6 bytes)
10101100.00010000.00010100.00110111
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

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

45. Which layer provides logical addressing that routers will use for path determination?
The Data Link layer frames packets received from the Network layer.
Router
Transport
The Network layer provides logical addressing - typically IP addressing and routing.

46. Why does the data communication industry use the layered OSI reference model? (Name two)
Switch or bridge
48 bits (6 bytes)
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.
Bridge or switch

47. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
3 - 2 - 1 - none
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Transport layer segments user data.
The Data Link layer frames packets received from the Network layer.

48. 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
CA:F5:83:EB
Router
48 bits (6 bytes)

49. What are two purposes for segmentation with a bridge?
Router
84:D2:43:B3
Buffering - windowing - congestion avoidance
To create more collision domains and to add more bandwidth for users.

50. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
10101100.00010000.00010100.00110111
Transport
84:D2:43:B3