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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 responsible for converting data packets from the Data Link layer into electrical signals?
To provide a means for the receiver to govern the amount of data sent by the sender.
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.
Fiber-opticcable
Source and destination MAC address and FCS field

2. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
To create more collision domains and to add more bandwidth for users.
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 Presentation layer makes sure that data is in a readable format for the Application layer.
Layer 4

3. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Data Link (LLC sublayer)
Hub and repeater
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.
Router

4. Name three types of connections that can use full duplex.
198.211.57.209
D8:1B:3D:76
The Data Link layer is responsible for the framing of data packets.
Switch to switch - host to host - switch to host

5. Convert 172.16.20.55 to binary format.
183/B7
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
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
10101100.00010000.00010100.00110111

6. This layer supports flow control and sequencing.
RJ45 UTP crossover cable.
Decrease the window size.
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.

7. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Session layer creates sessions between different hosts' applications.
RJ45 UTP rolled cable.
204.51.170.85
Packet switching - Packet filtering - Internetwork communication - Path selection

8. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
183/B7
Segments - packets - frames - bits
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Presentation layer makes sure that data is in a readable format for the Application layer.

9. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link
Network
The Network layer provides logical addressing - typically IP addressing and routing.

10. This layer uses service access points.
The Presentation layer makes sure that data is in a readable format for the Application layer.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data Link (LLC sublayer)
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

11. 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 Session layer sets up - maintains - and terminates sessions between applications.
Transport
Switch to switch - host to host - switch to host
Decrease the window size.

12. Ethernet is defined at these layers.
Data Link & Physical
The Data Link layer frames packets received from the Network layer.
Hub
Hub

13. 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.
10101100.00010000.00010100.00110111
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

14. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
D8:1B:3D:76
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
3 - 2 - 1 - none
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

15. This layer creates a virtual circuit before transmitting between two end stations.
RJ45 UTP crossover cable.
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data Link

16. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Hub and repeater
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
Switch or bridge

17. Convert 192.168.10.15 to binary format.
3 - 2 - 1 - none
The Transport layer segments user data.
Switch to switch - host to host - switch to host
11000000.10101000.00001010.00001111

18. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
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
48 bits (6 bytes)
Source and destination MAC address and FCS field

19. This device can never run full duplex.
Decrease the window size.
The Data Link layer is responsible for the framing of data packets.
Bridge or switch
Hub

20. What type of RJ45 UTP cable is used between switches?
The Data Link layer is responsible for the framing of data packets.
To create more collision domains and to add more bandwidth for users.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
RJ45 UTP crossover cable.

21. Which layer is represented by frames?
183/B7
Data - segment - packet - frame - bit
The Data Link layer frames packets received from the Network layer.
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.

22. 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?
3 - 2 - 1 - none
The Data Link layer frames packets received from the Network layer.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Router

23. This device uses hardware addresses to filter a network.
Bridge or switch
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 bits (6 bytes)
Hub

24. This device creates many smaller collision domains - but the network is still one large broadcast domain.
CA:F5:83:EB
Transport
Switch or bridge
00001010.00001011.00001100.01100011

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

26. What is the bit length and expression form of a MAC address?
To provide a means for the receiver to govern the amount of data sent by the sender.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub
48 bits (6 bytes)

27. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
The Network layer creates packets out of segments handed down from the Transport 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
The Session layer sets up - maintains - and terminates sessions between applications.

28. This device breaks up collision domains and broadcast domains.
Router
10101100.00010000.00010100.00110111
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.

29. When data is encapsulated - which is the correct order?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data - segment - packet - frame - bit
Router
Router

30. 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.
11000000.10101000.00001010.00001111
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.

31. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Transport
48 bits (6 bytes)
Layer 4
The Physical layer is responsible for the electrical and mechanical connections between devices.

32. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
84:D2:43:B3
D8:1B:3D:76
Decrease the window size.
CA:F5:83:EB

33. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
To provide a means for the receiver to govern the amount of data sent by the sender.
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

34. Which of the following are 3 common types of flow control?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Session layer sets up - maintains - and terminates sessions between applications.
Buffering - windowing - congestion avoidance
The Network layer provides logical addressing - typically IP addressing and routing.

35. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Transport
Buffering - windowing - congestion avoidance
Switch or bridge

36. This device creates one big collision domain and one large broadcast domain.
Data - segment - packet - frame - bit
Hub
Buffering - windowing - congestion avoidance
Switch or bridge

37. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Router
RJ45 UTP crossover cable.
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).

38. Why does the data communication industry use the layered OSI reference model? (Name two)
CA:F5:83:EB
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.
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
48 bits (6 bytes)

39. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Data Link & Physical
Bridge or switch
The Data Link layer is responsible for the framing of data packets.
The Network layer provides logical addressing - typically IP addressing and routing.

40. 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).
Network
132.210.184.166
The Transport layer segments user data.

41. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
48 bits (6 bytes)
132.210.184.166
Transport

42. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
RJ45 UTP rolled cable.
Layer 4
D8:1B:3D:76
Data Link

43. 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 Physical layer is responsible for the electrical and mechanical connections between devices.
Bridge or switch
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Presentation layer makes sure that data is in a readable format for the Application layer.

44. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
Segments - packets - frames - bits
Decrease the window size.
Packet switching - Packet filtering - Internetwork communication - Path selection

45. This device sends and receives information about the Network layer.
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).
Data - segment - packet - frame - bit
To create more collision domains and to add more bandwidth for users.

46. 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).
204.51.170.85
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Fiber-opticcable

47. Which layer is responsible for creating - managing - and terminating sessions between applications?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
CA:F5:83:EB
The Session layer sets up - maintains - and terminates sessions between applications.
Hub

48. Which layer segments and reassembles data into a data stream?
The Session layer sets up - maintains - and terminates sessions between applications.
Switch or bridge
The Network layer creates packets out of segments handed down from the Transport layer.
Transport

49. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Network
The Data Link layer is responsible for the framing of data packets.
Hub and repeater

50. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
204.51.170.85
RJ45 UTP rolled cable.
Layer 4