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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 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?
204.51.170.85
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Data Link layer is responsible for the framing of data packets.
183/B7

2. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
Transport
132.210.184.166
Source and destination MAC address and FCS field

3. This layer uses service access points.
The Data Link layer frames packets received from the Network layer.
Data Link (LLC sublayer)
48 bits (6 bytes)
CA:F5:83:EB

4. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
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 crossover cable.
Transport
3 - 2 - 1 - none

5. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
204.51.170.85
CA:F5:83:EB
The Physical layer is responsible for the electrical and mechanical connections between devices.
183/B7

6. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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 Session layer sets up - maintains - and terminates sessions between applications.
Router
The Network layer creates packets out of segments handed down from the Transport layer.

7. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
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 creates sessions between different hosts' applications.
Bridge or switch

8. 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.
Hub and repeater
Network
Hub

9. This device breaks up collision domains and broadcast domains.
Switch or bridge
The Transport layer segments user data.
To create more collision domains and to add more bandwidth for users.
Router

10. Convert 10.11.12.99 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.
The Data Link layer frames packets received from the Network layer.
00001010.00001011.00001100.01100011
Router

11. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
183/B7
Switch to switch - host to host - switch to host
Router
Network

12. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
CA:F5:83:EB
132.210.184.166
Packet switching - Packet filtering - Internetwork communication - Path selection
The Presentation layer makes sure that data is in a readable format for the Application layer.

13. 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
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport
The Network layer provides routing through an internetwork and logical addressing.

14. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Segments - packets - frames - bits
Switch to switch - host to host - switch to host
204.51.170.85
The Presentation layer makes sure that data is in a readable format for the Application layer.

15. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Data Link & Physical
Hub and repeater
Hub
48 bits (6 bytes)

16. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Network
Source and destination MAC address and FCS field
Fiber-opticcable
Transport

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

18. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data - segment - packet - frame - bit
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

19. When data is encapsulated - which is the correct order?
Router
Hub and repeater
Data - segment - packet - frame - bit
10101100.00010000.00010100.00110111

20. Convert 192.168.10.15 to binary format.
Switch to switch - host to host - switch to host
198.211.57.209
11000000.10101000.00001010.00001111
Network

21. This layer supports flow control and sequencing.
10101100.00010000.00010100.00110111
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
The Transport layer segments user data.

22. This device creates one big collision domain and one large broadcast domain.
CA:F5:83:EB
Switch or bridge
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub

23. This layer creates a virtual circuit before transmitting between two end stations.
The Network layer provides routing through an internetwork and logical addressing.
Transport
RJ45 UTP rolled cable.
Router

24. Convert 172.16.20.55 to binary format.
Data Link
10101100.00010000.00010100.00110111
00001010.00001011.00001100.01100011
The Session layer creates sessions between different hosts' applications.

25. Logical addressing is used at this layer.
Network
Source and destination MAC address and FCS field
198.211.57.209
Decrease the window size.

26. Segmentation of a data stream happens at which layer of the OSI model?
Transport
204.51.170.85
To provide a means for the receiver to govern the amount of data sent by the sender.
The Data Link layer is responsible for the framing of data packets.

27. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
10101100.00010000.00010100.00110111
11000000.10101000.00001010.00001111
The Data Link layer is responsible for the framing of data packets.
48 bits (6 bytes)

28. Which layer is represented by frames?
CA:F5:83:EB
The Data Link layer frames packets received from the Network layer.
Bridge or switch
The Transport layer segments user data.

29. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
204.51.170.85
Data Link (LLC sublayer)
The Network layer provides routing through an internetwork and logical addressing.

30. Which layer is responsible for creating - managing - and terminating sessions between applications?
Bridge or switch
The Session layer sets up - maintains - and terminates sessions between applications.
The Data Link layer is responsible for the framing of data packets.
132.210.184.166

31. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
Fiber-opticcable
10101100.00010000.00010100.00110111
3 - 2 - 1 - none

32. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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 is responsible for the framing of data packets.
The Network layer provides routing through an internetwork and logical addressing.

33. 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.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Session layer creates sessions between different hosts' applications.
Fiber-opticcable

34. What is the purpose of flow control?
RJ45 UTP rolled cable.
3 - 2 - 1 - none
The Transport layer segments user data.
To provide a means for the receiver to govern the amount of data sent by the sender.

35. Which layer segments and reassembles data into a data stream?
The Data Link layer is responsible for the framing of data packets.
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).
Fiber-opticcable
Transport

36. Which layer provides logical addressing that routers will use for path determination?
Hub
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.
To provide a means for the receiver to govern the amount of data sent by the sender.

37. At which layer is routing implemented - enabling connections and path selection between two end systems?
RJ45 UTP crossover cable.
Router
The Network layer provides routing through an internetwork and logical addressing.
132.210.184.166

38. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Segments - packets - frames - bits
Layer 4
Buffering - windowing - congestion avoidance
The Session layer creates sessions between different hosts' applications.

39. Name four router functions.
11000000.10101000.00001010.00001111
Packet switching - Packet filtering - Internetwork communication - Path selection
Network
10101100.00010000.00010100.00110111

40. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Hub
3 - 2 - 1 - none
198.211.57.209

41. This device can never run full duplex.
Source and destination MAC address and FCS field
Data - segment - packet - frame - bit
Hub
3 - 2 - 1 - none

42. This device sends and receives information about the Network layer.
183/B7
132.210.184.166
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.
Router

43. Which layer is represented by bits?
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.
The Session layer creates sessions between different hosts' applications.

44. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
183/B7
Switch to switch - host to host - switch to host
The Network layer provides routing through an internetwork and logical addressing.
84:D2:43:B3

45. What are two purposes for segmentation with a bridge?
The Network layer provides routing through an internetwork and logical addressing.
Source and destination MAC address and FCS field
To create more collision domains and to add more bandwidth for users.
The Network layer provides logical addressing - typically IP addressing and routing.

46. Which of the following are 3 common types of flow control?
Fiber-opticcable
RJ45 UTP rolled cable.
Buffering - windowing - congestion avoidance
The Session layer creates sessions between different hosts' applications.

47. Name three types of connections that can use full duplex.
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 crossover cable.
Switch or bridge
Switch to switch - host to host - switch to host

48. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Switch to switch - host to host - switch to host
The Physical layer is responsible for the electrical and mechanical connections between devices.
Router

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

50. This device uses hardware addresses to filter a network.
RJ45 UTP crossover cable.
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 Data Link layer frames packets received from the Network layer.
Bridge or switch