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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. This layer supports flow control and sequencing.
Switch or bridge
11000000.10101000.00001010.00001111
Transport
To create more collision domains and to add more bandwidth for users.

2. Name three types of connections that can use full duplex.
Fiber-opticcable
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
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.

3. 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?
11000000.10101000.00001010.00001111
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.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

4. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Hub
3 - 2 - 1 - none
Network

5. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Transport
RJ45 UTP rolled cable.
Switch or bridge
D8:1B:3D:76

6. 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.
84:D2:43:B3
RJ45 UTP crossover cable.
The Session layer sets up - maintains - and terminates sessions between applications.

7. This layer creates a virtual circuit before transmitting between two end stations.
Data Link (LLC sublayer)
D8:1B:3D:76
RJ45 UTP rolled cable.
Transport

8. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates 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).
Segments - packets - frames - bits
D8:1B:3D:76

9. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Network layer creates packets out of segments handed down from the Transport layer.
00001010.00001011.00001100.01100011
Data Link & Physical
3 - 2 - 1 - none

10. When data is encapsulated - which is the correct order?
Router
Hub
Data - segment - packet - frame - bit
Transport

11. This device can measure the distance to a remote network.
Router
The Session layer sets up - maintains - and terminates sessions between applications.
Decrease the window size.
3 - 2 - 1 - none

12. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
48 bits (6 bytes)
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer provides routing through an internetwork and logical addressing.
CA:F5:83:EB

13. 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).
Packet switching - Packet filtering - Internetwork communication - Path selection
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub and repeater

14. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Data Link layer is responsible for the framing of data packets.
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
Switch or bridge

15. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
3 - 2 - 1 - none
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
198.211.57.209

16. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
RJ45 UTP crossover cable.
Data Link (LLC sublayer)
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Data Link layer is responsible for the framing of data packets.

17. What type of RJ45 UTP cable is used between switches?
Hub
Router
RJ45 UTP crossover cable.
Router

18. Why does the data communication industry use the layered OSI reference model? (Name two)
198.211.57.209
204.51.170.85
Data Link & Physical
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.

19. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
Network
The Session layer creates sessions between different hosts' applications.
3 - 2 - 1 - none

20. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
204.51.170.85
RJ45 UTP rolled cable.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

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?
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
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.

22. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Transport
Network
Switch to switch - host to host - switch to host

23. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Segments - packets - frames - bits
204.51.170.85
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

24. This device uses hardware addresses to filter a network.
Segments - packets - frames - bits
Bridge or switch
RJ45 UTP rolled cable.
Router

25. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Router
Data - segment - packet - frame - bit
Transport
D8:1B:3D:76

26. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Network layer provides routing through an internetwork and logical addressing.
Bridge or switch
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Session layer sets up - maintains - and terminates sessions between applications.

27. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
The Data Link layer frames packets received from the Network layer.
The Data Link layer is responsible for the framing of data packets.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

28. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
Packet switching - Packet filtering - Internetwork communication - Path selection
198.211.57.209
Data Link (LLC sublayer)

29. Convert 192.168.10.15 to binary format.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
11000000.10101000.00001010.00001111
Network
Router

30. This device breaks up collision domains and broadcast domains.
183/B7
Data Link
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router

31. Which layer provides logical addressing that routers will use for path determination?
Data - segment - packet - frame - bit
Transport
Data Link & Physical
The Network layer provides logical addressing - typically IP addressing and routing.

32. Logical addressing is used at this layer.
Network
Transport
The Data Link layer is responsible for the framing of data packets.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

33. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Switch or bridge
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.
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).

34. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Transport
The Data Link layer is responsible for the framing of data packets.
10101100.00010000.00010100.00110111
Switch or bridge

35. This layer uses service access points.
Data Link (LLC sublayer)
Switch or bridge
Data Link & Physical
CA:F5:83:EB

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

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37. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Data - segment - packet - frame - bit
Router
The Data Link layer is responsible for the framing of data packets.
Layer 4

38. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
3 - 2 - 1 - none
Segments - packets - frames - bits
The Transport layer segments user data.
The Physical layer is responsible for the electrical and mechanical connections between devices.

39. Which layer is represented by packets?
Layer 4
RJ45 UTP crossover cable.
The Network layer creates packets out of segments handed down from the Transport layer.
Router

40. This device can never run full duplex.
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.
Hub
Switch or bridge

41. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Hub and repeater
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
132.210.184.166
Data Link

42. Segmentation of a data stream happens at which layer of the OSI model?
Transport
Source and destination MAC address and FCS field
To provide a means for the receiver to govern the amount of data sent by the sender.
D8:1B:3D:76

43. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data - segment - packet - frame - bit
To provide a means for the receiver to govern the amount of data sent by the sender.

44. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
The Network layer creates packets out of segments handed down from the Transport layer.
3 - 2 - 1 - none
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

45. Convert 10000100.11010010.01000011.10110011 to hexadecimal 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).
Source and destination MAC address and FCS field
84:D2:43:B3
Packet switching - Packet filtering - Internetwork communication - Path selection

46. Which layer is represented by bits?
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
198.211.57.209
Source and destination MAC address and FCS field

47. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Source and destination MAC address and FCS field
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.
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

48. Convert 10.11.12.99 to binary format.
The Session layer creates sessions between different hosts' applications.
Segments - packets - frames - bits
Buffering - windowing - congestion avoidance
00001010.00001011.00001100.01100011

49. Which layer is represented by segments?
84:D2:43:B3
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
The Transport layer segments user data.

50. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
The Transport layer segments user data.
Network
84:D2:43:B3