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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. 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.
10101100.00010000.00010100.00110111
Decrease the window size.
Hub

2. This device breaks up collision domains and broadcast domains.
The Session layer creates sessions between different hosts' applications.
Router
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport

3. 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.
Transport
The Session layer creates sessions between different hosts' applications.

4. Segmentation of a data stream happens at which layer of the OSI model?
Switch to switch - host to host - switch to host
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
84:D2:43:B3

5. This device creates one big collision domain and one large broadcast domain.
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub
Router
132.210.184.166

6. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011
Router
84:D2:43:B3

7. Which layer is represented by frames?
132.210.184.166
Fiber-opticcable
Transport
The Data Link layer frames packets received from the Network layer.

8. This device can never run full duplex.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
Hub
Bridge or switch

9. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Network layer creates packets out of segments handed down from the Transport layer.
Network
Source and destination MAC address and FCS field
Packet switching - Packet filtering - Internetwork communication - Path selection

10. This layer supports flow control and sequencing.
Hub and repeater
The Transport layer segments user data.
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport

11. Logical addressing is used at this layer.
Hub and repeater
The Physical layer is responsible for the electrical and mechanical connections between devices.
Network
Router

12. 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.
Network
Switch or bridge
Switch to switch - host to host - switch to host

13. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
10101100.00010000.00010100.00110111
132.210.184.166
Buffering - windowing - congestion avoidance

14. This device sends and receives information about the Network layer.
00001010.00001011.00001100.01100011
Router
Decrease the window size.
Segments - packets - frames - bits

15. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Hub and repeater
Network
3 - 2 - 1 - none
The Session layer sets up - maintains - and terminates sessions between applications.

16. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
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
Source and destination MAC address and FCS field
132.210.184.166

17. Which layer is responsible for creating - managing - and terminating sessions between applications?
To create more collision domains and to add more bandwidth for users.
Data Link (LLC sublayer)
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 Session layer sets up - maintains - and terminates sessions between applications.

18. Convert 172.16.20.55 to binary format.
Switch or bridge
The Data Link layer frames packets received from the Network layer.
10101100.00010000.00010100.00110111
The Network layer creates packets out of segments handed down from the Transport layer.

19. Ethernet is defined at these layers.
Transport
Data Link & Physical
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
3 - 2 - 1 - none

20. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Switch or bridge
Hub and repeater
The Presentation layer makes sure that data is in a readable format for the Application layer.
Network

21. Which layer is represented by packets?
Transport
Switch to switch - host to host - switch to host
RJ45 UTP crossover cable.
The Network layer creates packets out of segments handed down from the Transport layer.

22. What are two purposes for segmentation with a bridge?
11000000.10101000.00001010.00001111
To create more collision domains and to add more bandwidth for users.
The Data Link layer frames packets received from the Network layer.
Switch to switch - host to host - switch to host

23. Which layer is represented by segments?
Transport
The Session layer sets up - maintains - and terminates sessions between applications.
The Transport layer segments user data.
Transport

24. Which of the following are 3 common types of flow control?
Transport
Data Link (LLC sublayer)
Buffering - windowing - congestion avoidance
The Session layer sets up - maintains - and terminates sessions between applications.

25. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Decrease the window size.
To provide a means for the receiver to govern the amount of data sent by the sender.

26. This device uses hardware addresses to filter a network.
Bridge or switch
Data Link
183/B7
Fiber-opticcable

27. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Data Link & Physical
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 Presentation layer makes sure that data is in a readable format for the Application layer.

28. Name four router functions.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Network
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer creates packets out of segments handed down from the Transport layer.

29. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
00001010.00001011.00001100.01100011
84:D2:43:B3
Layer 4
D8:1B:3D:76

30. Which layer is represented by bits?
84:D2:43:B3
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
To create more collision domains and to add more bandwidth for users.
Hub

31. 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
D8:1B:3D:76
Hub
The Data Link layer frames packets received from the Network layer.

32. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
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.
Transport
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.

33. 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
Bridge or switch
D8:1B:3D:76
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).

34. This layer uses service access points.
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
Network
Data Link (LLC sublayer)

35. 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.
D8:1B:3D:76
00001010.00001011.00001100.01100011
11000000.10101000.00001010.00001111

36. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
Buffering - windowing - congestion avoidance
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.

37. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Hub and repeater
11000000.10101000.00001010.00001111
Segments - packets - frames - bits
The Network layer provides logical addressing - typically IP addressing and routing.

38. Convert 192.168.10.15 to binary format.
Router
D8:1B:3D:76
11000000.10101000.00001010.00001111
Layer 4

39. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Layer 4
Data Link
RJ45 UTP rolled cable.
11000000.10101000.00001010.00001111

40. Why does the data communication industry use the layered OSI reference model? (Name two)
Bridge or switch
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.
Fiber-opticcable

41. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Bridge or switch
Transport
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.
D8:1B:3D:76

42. When data is encapsulated - which is the correct order?
The Network layer provides routing through an internetwork and logical addressing.
10101100.00010000.00010100.00110111
Data - segment - packet - frame - bit
183/B7

43. Which layer segments and reassembles data into a data stream?
Data Link & Physical
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
To provide a means for the receiver to govern the amount of data sent by the sender.

44. What is the bit length and expression form of a MAC address?
Fiber-opticcable
RJ45 UTP rolled cable.
48 bits (6 bytes)
3 - 2 - 1 - none

45. 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?
84:D2:43:B3
10101100.00010000.00010100.00110111
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Layer 4

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

47. 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.
Network
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.

48. What type of RJ45 UTP cable is used between switches?
10101100.00010000.00010100.00110111
Fiber-opticcable
RJ45 UTP crossover cable.
Source and destination MAC address and FCS field

49. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
To create more collision domains and to add more bandwidth for users.
Transport
Transport
198.211.57.209

50. This layer creates a virtual circuit before transmitting between two end stations.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport
Router
204.51.170.85