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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 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.
Fiber-opticcable
Source and destination MAC address and FCS field
RJ45 UTP crossover cable.

2. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Network layer creates packets out of segments handed down from the Transport layer.
84:D2:43:B3
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.

3. 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 & Physical
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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.

4. This layer creates a virtual circuit before transmitting between two end stations.
Bridge or switch
Data Link (LLC sublayer)
Hub and repeater
Transport

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

6. Logical addressing is used at this layer.
RJ45 UTP crossover cable.
Network
D8:1B:3D:76
48 bits (6 bytes)

7. Convert 172.16.20.55 to binary format.
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Decrease the window size.
10101100.00010000.00010100.00110111

8. This device can never run full duplex.
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
Network
Decrease the window size.

9. Convert 10.11.12.99 to binary format.
Router
00001010.00001011.00001100.01100011
84:D2:43:B3
10101100.00010000.00010100.00110111

10. Convert 11000110.11010011.00111001.11010001 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.
198.211.57.209
Transport
Hub

11. 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
204.51.170.85
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).
The Network layer provides logical addressing - typically IP addressing and routing.

12. At which layer is routing implemented - enabling connections and path selection between two end systems?
Router
Transport
The Network layer provides routing through an internetwork and logical addressing.
183/B7

13. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Data Link layer is responsible for the framing of data packets.
Network
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. Convert 11001100.00110011.10101010.01010101 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.
204.51.170.85
Data Link & Physical
The Network layer creates packets out of segments handed down from the Transport layer.

15. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
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
D8:1B:3D:76

16. Segmentation of a data stream happens at which layer of the OSI model?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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).
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport

17. Which of the following are 3 common types of flow control?
10101100.00010000.00010100.00110111
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Buffering - windowing - congestion avoidance

18. Which layer is represented by segments?
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.
Data Link
The Transport layer segments user data.

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

20. 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 Network layer provides logical addressing - typically IP addressing and routing.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.

21. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
183/B7
11000000.10101000.00001010.00001111
Layer 4

22. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Hub
204.51.170.85
The Session layer sets up - maintains - and terminates sessions between applications.

23. Convert 192.168.10.15 to binary format.
The Session layer sets up - maintains - and terminates sessions between applications.
Hub and repeater
Data Link (LLC sublayer)
11000000.10101000.00001010.00001111

24. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
132.210.184.166
The Data Link layer is responsible for the framing of data packets.
Data Link
Layer 4

25. Name four router functions.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
Packet switching - Packet filtering - Internetwork communication - Path selection

26. This layer supports flow control and sequencing.
10101100.00010000.00010100.00110111
Layer 4
Router
Transport

27. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Data Link & Physical
Switch or bridge
Segments - packets - frames - bits
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

28. 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?
Decrease the window size.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Session layer sets up - maintains - and terminates sessions between applications.
198.211.57.209

29. This device can measure the distance to a remote network.
198.211.57.209
Hub
Packet switching - Packet filtering - Internetwork communication - Path selection
Router

30. What is the purpose of flow control?
Bridge or switch
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for the electrical and mechanical connections between devices.
10101100.00010000.00010100.00110111

31. Which layer is represented by bits?
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
RJ45 UTP crossover cable.
Network

32. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
3 - 2 - 1 - none
183/B7
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).

33. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Data Link (LLC sublayer)
Fiber-opticcable
To provide a means for the receiver to govern the amount of data sent by the sender.
CA:F5:83:EB

34. This device sends and receives information about the Network layer.
Fiber-opticcable
Router
The Session layer sets up - maintains - and terminates sessions between applications.
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

35. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
D8:1B:3D:76
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.

36. This device uses hardware addresses to filter a network.
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).
Bridge or switch
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

37. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Network
The Network layer creates packets out of segments handed down from the Transport layer.
Transport
Switch or bridge

38. Which layer is responsible for creating - managing - and terminating sessions between applications?
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 Transport layer user virtual circuits to create a reliable connection between two hosts.
The Session layer sets up - maintains - and terminates sessions between applications.
Transport

39. When data is encapsulated - which is the correct order?
Source and destination MAC address and FCS field
To create more collision domains and to add more bandwidth for users.
Data Link (LLC sublayer)
Data - segment - packet - frame - bit

40. Ethernet is defined at these layers.
Network
Data Link & Physical
D8:1B:3D:76
Source and destination MAC address and FCS field

41. 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.
Router
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.

42. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
84:D2:43:B3
The Transport layer segments user data.
Fiber-opticcable
Layer 4

43. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
198.211.57.209
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
Network
To create more collision domains and to add more bandwidth for users.

44. What type of RJ45 UTP cable is used between switches?
Hub and repeater
RJ45 UTP crossover cable.
48 bits (6 bytes)
10101100.00010000.00010100.00110111

45. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Hub
Hub and repeater
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

46. Which layer is represented by frames?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Transport layer segments user data.
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.

47. Which layer is represented by packets?
The Data Link layer is responsible for the framing of data packets.
198.211.57.209
RJ45 UTP rolled cable.
The Network layer creates packets out of segments handed down from the Transport layer.

48. What are two purposes for segmentation with a bridge?
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 Network layer creates packets out of segments handed down from the Transport layer.
Layer 4

49. This device breaks up collision domains and broadcast domains.
Router
Transport
Hub
Bridge or switch

50. This layer uses service access points.
RJ45 UTP crossover cable.
The Data Link layer is responsible for the framing of data packets.
Data Link (LLC sublayer)
Layer 4