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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. Which layer is represented by bits?
The Physical layer is responsible for the electrical and mechanical connections between devices.
48 bits (6 bytes)
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Layer 4

2. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Segments - packets - frames - bits
The Data Link layer is responsible for the framing of data packets.
D8:1B:3D:76
84:D2:43:B3

3. This layer creates a virtual circuit before transmitting between two end stations.
The Session layer creates sessions between different hosts' applications.
183/B7
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.

4. This device uses hardware addresses to filter a 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
Transport
Bridge or switch
Hub

5. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
D8:1B:3D:76
Router
Network
The Session layer creates sessions between different hosts' applications.

6. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
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).
132.210.184.166
To create more collision domains and to add more bandwidth for users.
The Network layer provides logical addressing - typically IP addressing and routing.

7. This device creates one big collision domain and one large broadcast domain.
183/B7
Hub
The Data Link layer is responsible for the framing of data packets.
Packet switching - Packet filtering - Internetwork communication - Path selection

8. Which layer is represented by segments?
48 bits (6 bytes)
Data Link (LLC sublayer)
The Transport layer segments user data.
To create more collision domains and to add more bandwidth for users.

9. 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
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Layer 4
Hub and repeater

10. This device sends and receives information about the Network layer.
Data - segment - packet - frame - bit
Transport
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).
Router

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

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12. This device can measure the distance to a remote network.
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub and repeater
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).
Router

13. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Segments - packets - frames - bits
84:D2:43:B3
D8:1B:3D:76
Hub

14. 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 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.
Decrease the window size.
RJ45 UTP crossover cable.
Packet switching - Packet filtering - Internetwork communication - Path selection

15. Which two fields are contained within an IEEE Ethernet frame header?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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.
The Network layer provides routing through an internetwork and logical addressing.
Source and destination MAC address and FCS field

16. This device can never run full duplex.
132.210.184.166
11000000.10101000.00001010.00001111
Hub
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

17. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
The Session layer creates sessions between different hosts' applications.
198.211.57.209
Hub

18. This device breaks up collision domains and broadcast domains.
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub
Fiber-opticcable

19. Name three types of connections that can use full duplex.
Transport
Switch to switch - host to host - switch to host
84:D2:43:B3
The Network layer provides logical addressing - typically IP addressing and routing.

20. Why does the data communication industry use the layered OSI reference model? (Name two)
Fiber-opticcable
Data Link
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

21. At which layer is routing implemented - enabling connections and path selection between two end systems?
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub
The Network layer provides routing through an internetwork and logical addressing.
Fiber-opticcable

22. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
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
Buffering - windowing - congestion avoidance

23. Which layer provides logical addressing that routers will use for path determination?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport
The Network layer provides logical addressing - typically IP addressing and routing.

24. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
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.
00001010.00001011.00001100.01100011
204.51.170.85
198.211.57.209

25. Name four router functions.
Buffering - windowing - congestion avoidance
Data - segment - packet - frame - bit
The Presentation layer makes sure that data is in a readable format for the Application layer.
Packet switching - Packet filtering - Internetwork communication - Path selection

26. This layer supports flow control and sequencing.
To create more collision domains and to add more bandwidth for users.
Decrease the window size.
132.210.184.166
Transport

27. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Data Link (LLC sublayer)
Fiber-opticcable
Transport
84:D2:43:B3

28. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
RJ45 UTP rolled cable.
198.211.57.209
Network
Hub

29. Segmentation of a data stream happens at which layer of the OSI model?
Router
D8:1B:3D:76
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

30. Which layer is represented by packets?
Router
Router
84:D2:43:B3
The Network layer creates packets out of segments handed down from the Transport layer.

31. 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
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).
Hub and repeater
48 bits (6 bytes)
Transport

32. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Source and destination MAC address and FCS field
D8:1B:3D:76
Transport

33. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
To provide a means for the receiver to govern the amount of data sent by the sender.
Layer 4
Hub

34. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
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.
Segments - packets - frames - bits
Layer 4

35. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Hub
48 bits (6 bytes)
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 Physical layer is responsible for the electrical and mechanical connections between devices.

36. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
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 Physical layer is responsible for transporting 1s and 0s in a digital signal.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

37. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Transport layer segments user data.
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.

38. When data is encapsulated - which is the correct order?
Fiber-opticcable
183/B7
Data - segment - packet - frame - bit
Data Link (LLC sublayer)

39. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
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
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

40. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub
Router
183/B7

41. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Session layer creates sessions between different hosts' applications.
Switch to switch - host to host - switch to host
Hub and repeater
204.51.170.85

42. Convert 192.168.10.15 to binary format.
Fiber-opticcable
The Transport layer segments user data.
Router
11000000.10101000.00001010.00001111

43. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
Transport
CA:F5:83:EB
Packet switching - Packet filtering - Internetwork communication - Path selection

44. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
Layer 4
Packet switching - Packet filtering - Internetwork communication - Path selection
204.51.170.85

45. Which layer is represented by frames?
Transport
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Data Link layer frames packets received from the Network layer.

46. 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.
Hub and repeater
Switch or bridge
Router

47. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
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
Switch to switch - host to host - switch to host
The Data Link layer is responsible for the framing of data packets.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

48. Convert 10.11.12.99 to binary format.
Transport
Network
00001010.00001011.00001100.01100011
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

49. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Data Link (LLC sublayer)
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.
Fiber-opticcable

50. This layer uses service access points.
84:D2:43:B3
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport
Data Link (LLC sublayer)