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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. 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.
RJ45 UTP crossover cable.
183/B7
CA:F5:83:EB

2. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Hub
Switch or bridge
Bridge or switch
204.51.170.85

3. This device breaks up collision domains and broadcast domains.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport
Router
Data Link

4. Which two fields are contained within an IEEE Ethernet frame header?
To provide a means for the receiver to govern the amount of data sent by the sender.
Source and destination MAC address and FCS field
48 bits (6 bytes)
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

5. Which layer is represented by frames?
Source and destination MAC address and FCS field
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
The Data Link layer frames packets received from the Network layer.

6. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Switch or bridge
198.211.57.209
The Data Link layer is responsible for the framing of data packets.
Switch to switch - host to host - switch to host

7. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Switch or bridge
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).
CA:F5:83:EB
Fiber-opticcable

8. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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 takes frames from the Data Link layer and encodes the 1s and 0s into a digital signal for transmission on the network medium.
Router
Hub

9. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
84:D2:43:B3
CA:F5:83:EB
D8:1B:3D:76
204.51.170.85

10. 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?
Switch or bridge
To provide a means for the receiver to govern the amount of data sent by the sender.
RJ45 UTP crossover cable.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

11. Segmentation of a data stream happens at which layer of the OSI 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
00001010.00001011.00001100.01100011
Router
Transport

12. Which layer segments and reassembles data into a data stream?
The Data Link layer is responsible for the framing of data packets.
Transport
84:D2:43:B3
The Session layer creates sessions between different hosts' applications.

13. 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 Data Link layer frames packets received from the Network layer.
48 bits (6 bytes)
The Network layer provides routing through an internetwork and logical addressing.

14. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
The Transport layer segments user data.
Router
The Data Link layer is responsible for the framing of data packets.

15. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Session layer creates sessions between different hosts' applications.
Hub
204.51.170.85
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

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

17. 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?
10101100.00010000.00010100.00110111
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Decrease the window size.

18. 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.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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).
Switch or bridge

19. This layer supports flow control and sequencing.
11000000.10101000.00001010.00001111
84:D2:43:B3
Transport
Data - segment - packet - frame - bit

20. Ethernet is defined at these layers.
Data Link & Physical
RJ45 UTP crossover cable.
Hub and repeater
3 - 2 - 1 - none

21. What are two purposes for segmentation with a bridge?
CA:F5:83:EB
Fiber-opticcable
Network
To create more collision domains and to add more bandwidth for users.

22. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
D8:1B:3D:76
CA:F5:83:EB
Data Link

23. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
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
Layer 4
The Session layer sets up - maintains - and terminates sessions between applications.

24. Logical addressing is used at this layer.
48 bits (6 bytes)
Data - segment - packet - frame - bit
Bridge or switch
Network

25. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub and repeater
CA:F5:83:EB
The Network layer creates packets out of segments handed down from the Transport layer.

26. This device can measure the distance to a remote network.
Router
132.210.184.166
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 Link & Physical

27. This device uses hardware addresses to filter a network.
Bridge or switch
Router
To create more collision domains and to add more bandwidth for users.
Hub

28. Convert 172.16.20.55 to binary 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).
183/B7
Network
10101100.00010000.00010100.00110111

29. At which layer is routing implemented - enabling connections and path selection between two end systems?
204.51.170.85
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
183/B7
The Network layer provides routing through an internetwork and logical addressing.

30. Convert 192.168.10.15 to binary format.
The Session layer creates sessions between different hosts' applications.
11000000.10101000.00001010.00001111
RJ45 UTP crossover cable.
00001010.00001011.00001100.01100011

31. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.
48 bits (6 bytes)
Source and destination MAC address and FCS field

32. Which layer is represented by bits?
11000000.10101000.00001010.00001111
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
198.211.57.209
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. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
Data Link
Data Link & Physical
Segments - packets - frames - bits

34. Which of the following are 3 common types of flow control?
RJ45 UTP rolled cable.
Transport
The Session layer creates sessions between different hosts' applications.
Buffering - windowing - congestion avoidance

35. This device creates one big collision domain and one large broadcast domain.
RJ45 UTP crossover cable.
Data - segment - packet - frame - bit
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub

36. This layer uses service access points.
Data Link (LLC sublayer)
Buffering - windowing - congestion avoidance
Hub
Router

37. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Decrease the window size.
132.210.184.166
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.
Layer 4

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
Fiber-opticcable
The Transport layer segments user data.
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

39. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
183/B7

40. What type of RJ45 UTP cable is used between switches?
CA:F5:83:EB
Hub and repeater
RJ45 UTP crossover cable.
Segments - packets - frames - bits

41. This device sends and receives information about the Network layer.
Router
The Network layer creates packets out of segments handed down from the Transport layer.
11000000.10101000.00001010.00001111
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

42. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Network layer provides routing through an internetwork and logical addressing.
Data Link
84:D2:43:B3
CA:F5:83:EB

43. Name four router functions.
Source and destination MAC address and FCS field
Data Link (LLC sublayer)
Packet switching - Packet filtering - Internetwork communication - Path selection
CA:F5:83:EB

44. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Switch to switch - host to host - switch to host
The Network layer creates packets out of segments handed down from the Transport layer.
Network
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

45. Which layer is responsible for creating - managing - and terminating sessions between applications?
Router
The Session layer sets up - maintains - and terminates sessions between applications.
10101100.00010000.00010100.00110111
Switch or bridge

46. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
Transport
Hub
Buffering - windowing - congestion avoidance

47. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Layer 4
198.211.57.209
Hub
3 - 2 - 1 - none

48. Which layer is represented by segments?
Transport
Transport
84:D2:43:B3
The Transport layer segments user data.

49. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
CA:F5:83:EB
48 bits (6 bytes)
Data Link
84:D2:43:B3

50. When data is encapsulated - which is the correct order?
To create more collision domains and to add more bandwidth for users.
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
Router