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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. At which layer is routing implemented - enabling connections and path selection between two end systems?
Transport
The Transport layer segments user data.
Bridge or switch
The Network layer provides routing through an internetwork and logical addressing.

2. 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
The Presentation layer makes sure that data is in a readable format for the Application layer.
00001010.00001011.00001100.01100011

3. This device creates one big collision domain and one large broadcast domain.
The Network layer provides routing through an internetwork and logical addressing.
Hub
Segments - packets - frames - bits
Hub and repeater

4. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
204.51.170.85
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router

5. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
RJ45 UTP rolled cable.
10101100.00010000.00010100.00110111
Data Link (LLC sublayer)
Fiber-opticcable

6. Name four router functions.
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
Buffering - windowing - congestion avoidance
Layer 4

7. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
To create more collision domains and to add more bandwidth for users.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport

8. Which layer is represented by bits?
The Data Link layer is responsible for the framing of data packets.
D8:1B:3D:76
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.

9. Convert 172.16.20.55 to binary format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data Link (LLC sublayer)
10101100.00010000.00010100.00110111
The Data Link layer frames packets received from the Network layer.

10. Which layer is responsible for creating - managing - and terminating sessions between applications?
RJ45 UTP crossover cable.
3 - 2 - 1 - none
The Session layer sets up - maintains - and terminates sessions between applications.
The Transport layer segments user data.

11. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Transport
183/B7
The Network layer provides routing through an internetwork and logical addressing.
The Transport layer segments user data.

12. Which layer is represented by segments?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Decrease the window size.
The Transport layer segments user data.
132.210.184.166

13. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Session layer sets up - maintains - and terminates sessions between applications.
204.51.170.85
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

14. What is the purpose of flow control?
Network
The Session layer sets up - maintains - and terminates sessions between applications.
To provide a means for the receiver to govern the amount of data sent by the sender.
198.211.57.209

15. This device can never run full duplex.
48 bits (6 bytes)
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub

16. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Data Link
Decrease the window size.
Switch or bridge
The Transport layer user virtual circuits to create a reliable connection between two hosts.

17. What type of RJ45 UTP cable is used between switches?
Data Link (LLC sublayer)
Buffering - windowing - congestion avoidance
Data - segment - packet - frame - bit
RJ45 UTP crossover cable.

18. This device uses hardware addresses to filter a network.
RJ45 UTP rolled cable.
Bridge or switch
Transport
RJ45 UTP crossover cable.

19. When data is encapsulated - which is the correct order?
The Network layer provides routing through an internetwork and logical addressing.
Router
Router
Data - segment - packet - frame - bit

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

21. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Data - segment - packet - frame - bit
The Network layer provides logical addressing - typically IP addressing and routing.
The Network layer creates packets out of segments handed down from the Transport 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.

22. Which two fields are contained within an IEEE Ethernet frame header?
CA:F5:83:EB
Data Link (LLC sublayer)
Source and destination MAC address and FCS field
The Transport layer user virtual circuits to create a reliable connection between two hosts.

23. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
198.211.57.209
The Data Link layer frames packets received from the Network layer.
132.210.184.166
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

24. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Network layer provides routing through an internetwork and logical addressing.
To provide a means for the receiver to govern the amount of data sent by the sender.
198.211.57.209
RJ45 UTP crossover cable.

25. This layer creates a virtual circuit before transmitting between two end stations.
RJ45 UTP rolled cable.
Transport
Source and destination MAC address and FCS field
Data Link

26. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Network layer creates packets out of segments handed down from the Transport layer.
The Data Link layer is responsible for the framing of data packets.
Source and destination MAC address and FCS field
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

27. This device sends and receives information about the Network layer.
Router
Segments - packets - frames - bits
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).

28. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Switch or bridge
Data Link & Physical
Data Link
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

29. Why does the data communication industry use the layered OSI reference model? (Name two)
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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.
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

30. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Buffering - windowing - congestion avoidance
The Network layer creates packets out of segments handed down from the Transport layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer provides logical addressing - typically IP addressing and routing.

31. This device breaks up collision domains and broadcast domains.
Router
Transport
10101100.00010000.00010100.00110111
3 - 2 - 1 - none

32. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
CA:F5:83:EB
The Session layer sets up - maintains - and terminates sessions between applications.
132.210.184.166
Segments - packets - frames - bits

33. 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
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).
Network
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

34. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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 Transport layer segments user data.
Switch or bridge

35. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Network
Hub

36. This layer supports flow control and sequencing.
The Transport layer segments user data.
Transport
Source and destination MAC address and FCS field
D8:1B:3D:76

37. What are two purposes for segmentation with a bridge?
Hub
The Network layer creates packets out of segments handed down from the Transport layer.
To create more collision domains and to add more bandwidth for users.
The Session layer sets up - maintains - and terminates sessions between applications.

38. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Network
Hub
198.211.57.209

39. Which layer segments and reassembles data into a data stream?
The Session layer sets up - maintains - and terminates sessions between applications.
3 - 2 - 1 - none
Transport
00001010.00001011.00001100.01100011

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

41. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
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
204.51.170.85
Packet switching - Packet filtering - Internetwork communication - Path selection

42. Ethernet is defined at these layers.
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 Physical layer is responsible for the electrical and mechanical connections between devices.
Decrease the window size.
Data Link & Physical

43. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
The Data Link layer frames packets received from the Network layer.
183/B7
Router

44. 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
The Data Link layer frames packets received from the Network layer.
The Session layer sets up - maintains - and terminates sessions between applications.
48 bits (6 bytes)

45. Which layer is represented by frames?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network
The Data Link layer frames packets received from the Network layer.
48 bits (6 bytes)

46. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Router
The Data Link layer is responsible for the framing of data packets.
204.51.170.85
Hub and repeater

47. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
The Physical layer is responsible for the electrical and mechanical connections between devices.
D8:1B:3D:76
Hub
Decrease the window size.

48. Which of the following are 3 common types of flow control?
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.
Buffering - windowing - congestion avoidance
Network
Source and destination MAC address and FCS field

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

50. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
CA:F5:83:EB
84:D2:43:B3
Data Link (LLC sublayer)