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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. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
RJ45 UTP rolled cable.
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
183/B7

2. Which layer is represented by segments?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Transport layer segments user data.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport

3. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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.

4. This layer creates a virtual circuit before transmitting between two end stations.
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.
84:D2:43:B3
10101100.00010000.00010100.00110111

5. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
Hub
Switch to switch - host to host - switch to host
To provide a means for the receiver to govern the amount of data sent by the sender.

6. Put the following in order of encapsulation: Packets - Frames - Bits - 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).
Segments - packets - frames - bits
11000000.10101000.00001010.00001111
Router

7. Convert 172.16.20.55 to binary format.
RJ45 UTP crossover cable.
10101100.00010000.00010100.00110111
Layer 4
3 - 2 - 1 - none

8. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
84:D2:43:B3
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.
Hub
Network

9. 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 routing through an internetwork and logical addressing.
The Data Link layer is responsible for the framing of data packets.
Fiber-opticcable
Decrease the window size.

10. Logical addressing is used at this layer.
Switch or bridge
Decrease the window size.
Network
Transport

11. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Layer 4
The Presentation layer makes sure that data is in a readable format for the Application layer.
RJ45 UTP rolled cable.
The Session layer sets up - maintains - and terminates sessions between applications.

12. This device can measure the distance to a remote network.
Bridge or switch
Switch or bridge
Router
D8:1B:3D:76

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

14. This device can never run full duplex.
Decrease the window size.
RJ45 UTP crossover cable.
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.

15. This device creates one big collision domain and one large broadcast domain.
Hub
Transport
D8:1B:3D:76
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

16. Ethernet is defined at these layers.
Data Link & Physical
Packet switching - Packet filtering - Internetwork communication - Path selection
Segments - packets - frames - bits
The Session layer creates sessions between different hosts' applications.

17. Name three types of connections that can use full duplex.
84:D2:43:B3
Switch to switch - host to host - switch to host
Bridge or switch
Packet switching - Packet filtering - Internetwork communication - Path selection

18. 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.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Network
D8:1B:3D:76

19. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
RJ45 UTP rolled cable.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Switch or bridge

20. Why does the data communication industry use the layered OSI reference model? (Name two)
RJ45 UTP crossover cable.
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.
Hub and repeater

21. 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?
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
The Session layer sets up - maintains - and terminates sessions between applications.
183/B7

22. What are two purposes for segmentation with a bridge?
Data Link
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
183/B7
To create more collision domains and to add more bandwidth for users.

23. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
Layer 4
Network
The Session layer sets up - maintains - and terminates sessions between applications.

24. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Fiber-opticcable
To create more collision domains and to add more bandwidth for users.
Layer 4
Packet switching - Packet filtering - Internetwork communication - Path selection

25. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
00001010.00001011.00001100.01100011
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Fiber-opticcable
48 bits (6 bytes)

26. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
Router
The Transport layer segments user data.
Buffering - windowing - congestion avoidance

27. What is the purpose of flow control?
To create more collision domains and to add more bandwidth for users.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
To provide a means for the receiver to govern the amount of data sent by the sender.
Router

28. What type of RJ45 UTP cable is used between switches?
The Network layer creates packets out of segments handed down from the Transport layer.
Fiber-opticcable
RJ45 UTP crossover cable.
3 - 2 - 1 - none

29. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
The Session layer sets up - maintains - and terminates sessions between applications.
Decrease the window size.
204.51.170.85

30. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Decrease the window size.
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
D8:1B:3D:76

31. What is the bit length and expression form of a MAC address?
Source and destination MAC address and FCS field
The Data Link layer is responsible for the framing of data packets.
Data - segment - packet - frame - bit
48 bits (6 bytes)

32. This layer uses service access points.
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link (LLC sublayer)
The Transport layer segments user data.
198.211.57.209

33. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
84:D2:43:B3
Transport
RJ45 UTP rolled cable.
Router

34. This device uses hardware addresses to filter a network.
RJ45 UTP rolled cable.
84:D2:43:B3
Bridge or switch
Fiber-opticcable

35. This layer supports flow control and sequencing.
Packet switching - Packet filtering - Internetwork communication - Path selection
3 - 2 - 1 - none
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.

36. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Transport layer segments user data.
204.51.170.85
D8:1B:3D:76
198.211.57.209

37. Segmentation of a data stream happens at which layer of the OSI model?
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
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport

38. 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.
Transport
Data Link & Physical
D8:1B:3D:76

39. Which of the following are 3 common types of flow control?
The Data Link layer is responsible for the framing of data packets.
Buffering - windowing - congestion avoidance
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport

40. This device breaks up collision domains and broadcast domains.
Router
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub
The Transport layer segments user data.

41. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Network layer provides routing through an internetwork and logical addressing.
The Data Link layer is responsible for the framing of data packets.
Fiber-opticcable
The Physical layer is responsible for the electrical and mechanical connections between devices.

42. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
Decrease the window size.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport

43. 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
3 - 2 - 1 - none
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 Physical layer is responsible for transporting 1s and 0s in a digital signal.

44. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
D8:1B:3D:76
Network
The Data Link layer frames packets received from the Network layer.
204.51.170.85

45. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Layer 4
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.
Switch or bridge

46. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
D8:1B:3D:76
183/B7
Data Link & Physical
The Transport layer segments user data.

47. 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?
Source and destination MAC address and FCS field
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Fiber-opticcable

48. Which layer is represented by bits?
The Network layer provides logical addressing - typically IP addressing and routing.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.

49. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Data - segment - packet - frame - bit
Hub and repeater
The Data Link layer is responsible for the framing of data packets.
Switch or bridge

50. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
CA:F5:83:EB
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 Transport layer segments user data.