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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 device sends and receives information about the Network layer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Router
Layer 4

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

3. Which layer is represented by frames?
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.
Transport
To create more collision domains and to add more bandwidth for users.

4. Which layer is represented by bits?
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).
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Transport layer segments user data.

5. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Data Link (LLC sublayer)
Network
Fiber-opticcable
CA:F5:83:EB

6. This device breaks up collision domains and broadcast domains.
Router
Network
204.51.170.85
Data Link (LLC sublayer)

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

8. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
The Network layer provides logical addressing - typically IP addressing and routing.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
132.210.184.166
11000000.10101000.00001010.00001111

9. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
11000000.10101000.00001010.00001111
The Data Link layer is responsible for the framing of data packets.
Data Link
Switch to switch - host to host - switch to host

10. Which layer provides logical addressing that routers will use for path determination?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport
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.

11. 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?
Hub
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.
Transport

12. What type of RJ45 UTP cable is used between switches?
The Network layer creates packets out of segments handed down from the Transport layer.
RJ45 UTP crossover cable.
Data - segment - packet - frame - bit
Switch or bridge

13. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
84:D2:43:B3
Packet switching - Packet filtering - Internetwork communication - Path selection
132.210.184.166

14. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer creates sessions between different hosts' applications.
Transport
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 Session layer sets up - maintains - and terminates sessions between applications.

15. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Session layer sets up - maintains - and terminates sessions between applications.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer provides routing through an internetwork and logical addressing.
84:D2:43:B3

16. Logical addressing is used at this layer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Network
Router
Hub

17. Convert 192.168.10.15 to binary format.
Hub
11000000.10101000.00001010.00001111
Layer 4
CA:F5:83:EB

18. What is the bit length and expression form of a MAC address?
Data Link
Packet switching - Packet filtering - Internetwork communication - Path selection
11000000.10101000.00001010.00001111
48 bits (6 bytes)

19. Ethernet is defined at these layers.
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport
Data Link & Physical
The Physical layer is responsible for the electrical and mechanical connections between devices.

20. Which layer segments and reassembles data into a data stream?
To create more collision domains and to add more bandwidth for users.
10101100.00010000.00010100.00110111
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

21. Convert 10000100.11010010.01000011.10110011 to hexadecimal 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.
84:D2:43:B3
Transport
132.210.184.166

22. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
D8:1B:3D:76
Data Link
Switch or bridge

23. Convert 10.11.12.99 to binary format.
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
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.
00001010.00001011.00001100.01100011

24. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Bridge or switch
The Session layer creates sessions between different hosts' 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).
RJ45 UTP rolled cable.

25. 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?
Router
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
Decrease the window size.

26. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Hub and repeater
183/B7
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.

27. When data is encapsulated - which is the correct order?
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
132.210.184.166
Data - segment - packet - frame - bit

28. Convert 172.16.20.55 to binary format.
RJ45 UTP rolled cable.
10101100.00010000.00010100.00110111
Hub
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. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
10101100.00010000.00010100.00110111
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer provides logical addressing - typically IP addressing and routing.
CA:F5:83:EB

30. Which of the following are 3 common types of flow control?
RJ45 UTP rolled cable.
Buffering - windowing - congestion avoidance
Network
Router

31. What are two purposes for segmentation with a bridge?
The Data Link layer frames packets received from the Network layer.
Router
To create more collision domains and to add more bandwidth for users.
Hub

32. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Switch to switch - host to host - switch to host
The Transport layer segments user data.
Segments - packets - frames - bits
Transport

33. Which layer is represented by packets?
183/B7
Network
The Network layer creates packets out of segments handed down from the Transport layer.
Network

34. This device uses hardware addresses to filter a network.
Hub
00001010.00001011.00001100.01100011
Transport
Bridge or switch

35. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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
Router
Data Link
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

36. This device creates many smaller collision domains - but the network is still one large broadcast domain.
132.210.184.166
Switch or bridge
11000000.10101000.00001010.00001111
Network

37. This device can measure the distance to a remote network.
Router
48 bits (6 bytes)
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Data Link layer is responsible for the framing of data packets.

38. Segmentation of a data stream happens at which layer of the OSI model?
132.210.184.166
Data Link (LLC sublayer)
Fiber-opticcable
Transport

39. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Hub and repeater
CA:F5:83:EB
204.51.170.85
To provide a means for the receiver to govern the amount of data sent by the sender.

40. Name three types of connections that can use full duplex.
The Session layer sets up - maintains - and terminates sessions between applications.
Switch to switch - host to host - switch to host
Layer 4
Decrease the window size.

41. 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 Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
Segments - packets - frames - bits
D8:1B:3D:76

42. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Data Link layer frames packets received from the Network layer.
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.
RJ45 UTP crossover cable.
The Network layer provides routing through an internetwork and logical addressing.

43. This device creates one big collision domain and one large broadcast domain.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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
Hub

44. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Network layer provides routing through an internetwork and logical addressing.
84:D2:43:B3
To create more collision domains and to add more bandwidth for users.
Hub and repeater

45. 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).
Bridge or switch
Segments - packets - frames - bits
Fiber-opticcable

46. Why does the data communication industry use the layered OSI reference model? (Name two)
11000000.10101000.00001010.00001111
Network
The Transport layer segments user data.
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.

47. What is the purpose of flow control?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
To provide a means for the receiver to govern the amount of data sent by the sender.
Network
The Network layer provides routing through an internetwork and logical addressing.

48. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
RJ45 UTP rolled cable.
Layer 4
CA:F5:83:EB
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

49. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
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 - 2 - 1 - none
The Network layer creates packets out of segments handed down from the Transport layer.
To provide a means for the receiver to govern the amount of data sent by the sender.

50. This layer uses service access points.
Data Link (LLC sublayer)
Hub and repeater
RJ45 UTP crossover cable.
198.211.57.209