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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. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Transport
00001010.00001011.00001100.01100011
Data - segment - packet - frame - bit

2. What is the purpose of flow control?
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Transport layer segments user data.
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.

3. This layer supports flow control and sequencing.
132.210.184.166
Transport
Hub and repeater
The Session layer creates sessions between different hosts' applications.

4. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
00001010.00001011.00001100.01100011
The Data Link layer frames packets received from the Network layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
RJ45 UTP rolled cable.

5. Segmentation of a data stream happens at which layer of the OSI model?
The Physical layer is responsible for the electrical and mechanical connections between devices.
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.

6. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Router
Segments - packets - frames - bits
Network
Network

7. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
10101100.00010000.00010100.00110111
132.210.184.166
Network
Layer 4

8. Which layer is responsible for creating - managing - and terminating sessions between applications?
Network
The Session layer sets up - maintains - and terminates sessions between applications.
Hub and repeater
The Network layer creates packets out of segments handed down from the Transport layer.

9. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
132.210.184.166
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
11000000.10101000.00001010.00001111
Switch or bridge

10. Which of the following are 3 common types of flow control?
48 bits (6 bytes)
Transport
Buffering - windowing - congestion avoidance
Bridge or switch

11. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Hub and repeater
Buffering - windowing - congestion avoidance
Layer 4

12. Which layer provides logical addressing that routers will use for path determination?
3 - 2 - 1 - none
The Network layer provides logical addressing - typically IP addressing and routing.
The Data Link layer is responsible for the framing of data packets.
Network

13. Which layer is represented by segments?
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 Network layer provides routing through an internetwork and logical addressing.
The Transport layer segments user data.
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

14. This device can measure the distance to a remote network.
Data - segment - packet - frame - bit
Router
CA:F5:83:EB
The Physical layer is responsible for the electrical and mechanical connections between devices.

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

16. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Source and destination MAC address and FCS field
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).
Segments - packets - frames - bits

17. Which layer is represented by bits?
To create more collision domains and to add more bandwidth for users.
Data - segment - packet - frame - bit
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.

18. Why does the data communication industry use the layered OSI reference model? (Name two)
Packet switching - Packet filtering - Internetwork communication - Path selection
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
Decrease the window size.

19. Logical addressing is used at this layer.
Fiber-opticcable
Network
00001010.00001011.00001100.01100011
3 - 2 - 1 - none

20. This device breaks up collision domains and broadcast domains.
The Session layer sets up - maintains - and terminates sessions between applications.
Router
Network
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

21. 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.
RJ45 UTP crossover cable.
Data - segment - packet - frame - bit
Transport

22. This device uses hardware addresses to filter a network.
Transport
Bridge or switch
The Data Link layer frames packets received from the Network layer.
Segments - packets - frames - bits

23. What is the bit length and expression form of a MAC address?
Decrease the window size.
Buffering - windowing - congestion avoidance
48 bits (6 bytes)
D8:1B:3D:76

24. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Hub
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
Fiber-opticcable

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

26. This layer uses service access points.
Network
Hub
Data Link (LLC sublayer)
Transport

27. What are two purposes for segmentation with a bridge?
00001010.00001011.00001100.01100011
D8:1B:3D:76
To create more collision domains and to add more bandwidth for users.
Transport

28. Convert 192.168.10.15 to binary format.
Network
Router
Transport
11000000.10101000.00001010.00001111

29. This device can never run full duplex.
198.211.57.209
The Network layer creates packets out of segments handed down from the Transport layer.
Hub
Data Link & Physical

30. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
10101100.00010000.00010100.00110111
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.

31. Which two fields are contained within an IEEE Ethernet frame header?
Segments - packets - frames - bits
Source and destination MAC address and FCS field
Router
Bridge or switch

32. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Layer 4
84:D2:43:B3
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub and repeater

33. What type of RJ45 UTP cable is used between switches?
183/B7
Decrease the window size.
Hub and repeater
RJ45 UTP crossover cable.

34. Which layer is represented by frames?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Data Link layer frames packets received from the Network layer.
RJ45 UTP rolled cable.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

35. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Source and destination MAC address and FCS field
The Data Link layer frames packets received from the Network layer.
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

36. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Hub
Bridge or switch
3 - 2 - 1 - none
11000000.10101000.00001010.00001111

37. Name three types of connections that can use full duplex.
To create more collision domains and to add more bandwidth for users.
Data - segment - packet - frame - bit
The Data Link layer is responsible for the framing of data packets.
Switch to switch - host to host - switch to host

38. 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
Data Link & Physical
Switch to switch - host to host - switch to host
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).

39. This device sends and receives information about the Network layer.
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.
CA:F5:83:EB
Router

40. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
D8:1B:3D:76
The Data Link layer is responsible for the framing of data packets.
Transport
10101100.00010000.00010100.00110111

41. Which layer segments and reassembles data into a data stream?
Segments - packets - frames - bits
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

42. 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?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
204.51.170.85
10101100.00010000.00010100.00110111
Bridge or switch

43. 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?
Hub
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Packet switching - Packet filtering - Internetwork communication - Path selection
Router

44. This layer creates a virtual circuit before transmitting between two end stations.
3 - 2 - 1 - none
Fiber-opticcable
Transport
The Transport layer segments user data.

45. 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 logical addressing - typically IP addressing and routing.
11000000.10101000.00001010.00001111
132.210.184.166
Decrease the window size.

46. Ethernet is defined at these layers.
Hub
Data Link & Physical
The Network layer provides logical addressing - typically IP addressing and routing.
CA:F5:83:EB

47. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
Transport
The Network layer provides routing through an internetwork and logical addressing.
Network

48. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
48 bits (6 bytes)
Layer 4
Fiber-opticcable
Decrease the window size.

49. Convert 10.11.12.99 to binary format.
Buffering - windowing - congestion avoidance
The Data Link layer is responsible for the framing of data packets.
Network
00001010.00001011.00001100.01100011

50. When data is encapsulated - which is the correct order?
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
Data - segment - packet - frame - bit
To create more collision domains and to add more bandwidth for users.