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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 specifies voltage - wire speed - and pinout cables and moves bits between devices?
3 - 2 - 1 - none
183/B7
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.

2. 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?
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.
48 bits (6 bytes)
The Transport layer user virtual circuits to create a reliable connection between two hosts.

3. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Transport layer segments user data.
198.211.57.209
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
10101100.00010000.00010100.00110111

4. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
84:D2:43:B3
Fiber-opticcable
Packet switching - Packet filtering - Internetwork communication - Path selection
48 bits (6 bytes)

5. Which layer provides logical addressing that routers will use for path determination?
To provide a means for the receiver to govern the amount of data sent by the sender.
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 Network layer provides logical addressing - typically IP addressing and routing.
Bridge or switch

6. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Layer 4
RJ45 UTP crossover cable.
Bridge or switch

7. This device can measure the distance to a remote network.
3 - 2 - 1 - none
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).
Packet switching - Packet filtering - Internetwork communication - Path selection

8. Which layer is represented by bits?
Transport
Switch to switch - host to host - switch to host
Packet switching - Packet filtering - Internetwork communication - Path selection
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

9. This layer supports flow control and sequencing.
Transport
Switch or bridge
Segments - packets - frames - bits
10101100.00010000.00010100.00110111

10. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Router
3 - 2 - 1 - none
Transport
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

11. This device creates one big collision domain and one large broadcast domain.
The Transport layer segments user data.
Router
Hub
132.210.184.166

12. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
D8:1B:3D:76
Bridge or switch
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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

13. Which layer is represented by segments?
RJ45 UTP rolled cable.
The Transport layer segments user data.
Router
The Session layer creates sessions between different hosts' applications.

14. 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.
Data Link & Physical
The Data Link layer is responsible for the framing of data packets.
Decrease the window size.

15. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
Router
84:D2:43:B3
To provide a means for the receiver to govern the amount of data sent by the sender.

16. Convert 172.16.20.55 to binary format.
198.211.57.209
3 - 2 - 1 - none
10101100.00010000.00010100.00110111
To create more collision domains and to add more bandwidth for users.

17. This device uses hardware addresses to filter a network.
Router
48 bits (6 bytes)
Bridge or switch
Fiber-opticcable

18. Which two fields are contained within an IEEE Ethernet frame header?
The Data Link layer is responsible for the framing of data packets.
Source and destination MAC address and FCS field
Transport
Network

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

20. At which layer is routing implemented - enabling connections and path selection between two end systems?
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.
The Network layer provides routing through an internetwork and logical addressing.
Buffering - windowing - congestion avoidance

21. 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.
Segments - packets - frames - bits
Transport
Network

22. This layer creates a virtual circuit before transmitting between two end stations.
Data Link (LLC sublayer)
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport
Router

23. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Switch to switch - host to host - switch to host
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link & Physical

24. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
84:D2:43:B3
Data Link & Physical
00001010.00001011.00001100.01100011

25. Which layer is responsible for creating - managing - and terminating sessions between applications?
RJ45 UTP rolled cable.
Layer 4
Packet switching - Packet filtering - Internetwork communication - Path selection
The Session layer sets up - maintains - and terminates sessions between applications.

26. Convert 11001010.11110101.10000011.11101011 to hexadecimal 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.
The Physical layer is responsible for the electrical and mechanical connections between devices.
CA:F5:83:EB
Transport

27. Name three types of connections that can use full duplex.
Hub
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.
The Session layer sets up - maintains - and terminates sessions between applications.

28. This device breaks up collision domains and broadcast domains.
Fiber-opticcable
Router
Decrease the window size.
204.51.170.85

29. This device sends and receives information about the Network layer.
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link (LLC sublayer)
Router
00001010.00001011.00001100.01100011

30. Convert 10.11.12.99 to binary format.
Data Link & Physical
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Session layer creates sessions between different hosts' applications.
00001010.00001011.00001100.01100011

31. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
The Session layer sets up - maintains - and terminates sessions between applications.
Data - segment - packet - frame - bit
Hub and repeater

32. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
To create more collision domains and to add more bandwidth for users.
D8:1B:3D:76
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.
RJ45 UTP rolled cable.

33. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Packet switching - Packet filtering - Internetwork communication - Path selection
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
10101100.00010000.00010100.00110111

34. 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?
3 - 2 - 1 - none
Fiber-opticcable
Decrease the window size.
Network

35. Segmentation of a data stream happens at which layer of the OSI model?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Network
Fiber-opticcable
Transport

36. This device can never run full duplex.
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 Network layer provides routing through an internetwork and logical addressing.
Router
Hub

37. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
183/B7
Source and destination MAC address and FCS field
Router
Network

38. Ethernet is defined at these layers.
Data Link & Physical
Transport
Hub and repeater
The Network layer provides routing through an internetwork and logical addressing.

39. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Network layer provides logical addressing - typically IP addressing and routing.
132.210.184.166
183/B7
Data Link & Physical

40. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Decrease the window size.
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.
To create more collision domains and to add more bandwidth for users.

41. What is the bit length and expression form of a MAC address?
Hub
3 - 2 - 1 - none
84:D2:43:B3
48 bits (6 bytes)

42. What are two purposes for segmentation with a bridge?
Data Link (LLC sublayer)
11000000.10101000.00001010.00001111
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

43. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
The Data Link layer is responsible for the framing of data packets.
The Session layer creates sessions between different hosts' applications.
132.210.184.166
183/B7

44. This layer uses service access points.
The Session layer sets up - maintains - and terminates sessions between applications.
Data Link (LLC sublayer)
Router
Hub

45. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
To create more collision domains and to add more bandwidth for users.
Hub and repeater
Data Link & Physical
The Presentation layer makes sure that data is in a readable format for the Application layer.

46. Convert 192.168.10.15 to binary format.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
84:D2:43:B3
To create more collision domains and to add more bandwidth for users.
11000000.10101000.00001010.00001111

47. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
3 - 2 - 1 - none
D8:1B:3D:76
Transport
Layer 4

48. What is the purpose of flow control?
Source and destination MAC address and FCS field
RJ45 UTP crossover cable.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

49. Name four router functions.
Router
Fiber-opticcable
48 bits (6 bytes)
Packet switching - Packet filtering - Internetwork communication - Path selection

50. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Hub
Transport
Segments - packets - frames - bits