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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. What are two purposes for segmentation with a bridge?
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
To create more collision domains and to add more bandwidth for users.
The Network layer creates packets out of segments handed down from the Transport layer.

2. This device can never run full duplex.
Data Link & Physical
Hub
The Transport layer user virtual circuits to create a reliable connection between two hosts.
To create more collision domains and to add more bandwidth for users.

3. What type of RJ45 UTP cable is used between switches?
Router
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
RJ45 UTP crossover cable.
198.211.57.209

4. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
Transport
48 bits (6 bytes)
Data Link & Physical

5. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
To create more collision domains and to add more bandwidth for users.
Data Link
Segments - packets - frames - bits
84:D2:43:B3

6. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
132.210.184.166
Data - segment - packet - frame - bit
Transport

7. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub
11000000.10101000.00001010.00001111
204.51.170.85

8. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Transport layer segments user data.
Network
To create more collision domains and to add more bandwidth for users.
CA:F5:83:EB

9. What is the bit length and expression form of a MAC address?
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
48 bits (6 bytes)
Transport

10. Which layer segments and reassembles data into a data stream?
183/B7
The Physical layer is responsible for the electrical and mechanical connections between devices.
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

11. What is the purpose of flow control?
Switch or bridge
Packet switching - Packet filtering - Internetwork communication - Path selection
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.

12. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
198.211.57.209
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link

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
3 - 2 - 1 - none
D8:1B:3D:76
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.

14. Segmentation of a data stream happens at which layer of the OSI model?
Segments - packets - frames - bits
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
132.210.184.166

15. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Hub
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

16. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
204.51.170.85
Network
Buffering - windowing - congestion avoidance

17. Convert 192.168.10.15 to binary format.
The Data Link layer frames packets received from the Network layer.
11000000.10101000.00001010.00001111
48 bits (6 bytes)
Hub

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

19. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
84:D2:43:B3
Router
RJ45 UTP rolled cable.

20. Logical addressing is used at this layer.
Transport
D8:1B:3D:76
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Network

21. 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.
00001010.00001011.00001100.01100011
Network
Source and destination MAC address and FCS field

22. This device sends and receives information about 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.
Router
Buffering - windowing - congestion avoidance
D8:1B:3D:76

23. Which two fields are contained within an IEEE Ethernet frame header?
Segments - packets - frames - bits
84:D2:43:B3
Source and destination MAC address and FCS field
Fiber-opticcable

24. Which layer is represented by segments?
RJ45 UTP crossover cable.
CA:F5:83:EB
The Transport layer segments user data.
Buffering - windowing - congestion avoidance

25. Which of the following are 3 common types of flow control?
The Data Link layer is responsible for the framing of data packets.
Buffering - windowing - congestion avoidance
10101100.00010000.00010100.00110111
Transport

26. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Data Link & Physical
CA:F5:83:EB
Router
Data Link (LLC sublayer)

27. This layer uses service access points.
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
Switch or bridge

28. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
132.210.184.166
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.
Hub and repeater

29. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Router
Network
Hub and repeater

30. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
10101100.00010000.00010100.00110111
204.51.170.85

31. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Network layer creates packets out of segments handed down from the Transport layer.
11000000.10101000.00001010.00001111
Hub and repeater
Network

32. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
3 - 2 - 1 - none
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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.

33. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Hub
Hub and repeater
Segments - packets - frames - bits
Data Link

34. This layer creates a virtual circuit before transmitting between two end stations.
183/B7
The Session layer sets up - maintains - and terminates sessions between applications.
198.211.57.209
Transport

35. 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?
Fiber-opticcable
Source and destination MAC address and FCS field
The Session layer creates sessions between different hosts' applications.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

36. When data is encapsulated - which is the correct order?
Segments - packets - frames - bits
The Data Link layer frames packets received from the Network layer.
D8:1B:3D:76
Data - segment - packet - frame - bit

37. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Network layer provides routing through an internetwork and logical addressing.
To create more collision domains and to add more bandwidth for users.
183/B7
Hub

38. This device can measure the distance to a remote network.
Router
Data Link (LLC sublayer)
3 - 2 - 1 - none
To create more collision domains and to add more bandwidth for users.

39. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
00001010.00001011.00001100.01100011
The Session layer sets up - maintains - and terminates sessions between applications.
D8:1B:3D:76
84:D2:43:B3

40. This device uses hardware addresses to filter a network.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Switch to switch - host to host - switch to host
Bridge or switch
Network

41. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Data Link & Physical
198.211.57.209
Transport
Switch to switch - host to host - switch to host

42. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
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 is responsible for the framing of data packets.
Hub
The Network layer provides routing through an internetwork and logical addressing.

43. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
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.
The Physical layer is responsible for the electrical and mechanical connections between devices.
48 bits (6 bytes)

44. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer segments user data.
Transport
Hub

45. Which layer is represented by packets?
Data Link
D8:1B:3D:76
The Network layer creates packets out of segments handed down from the Transport layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

46. This device creates one big collision domain and one large broadcast domain.
Switch to switch - host to host - switch to host
Data Link & Physical
Hub
Router

47. 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?
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.
Decrease the window size.
11000000.10101000.00001010.00001111

48. Convert 172.16.20.55 to binary 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.
10101100.00010000.00010100.00110111
Hub and repeater
To provide a means for the receiver to govern the amount of data sent by the sender.

49. 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 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.
Data Link
Hub

50. 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?
The Network layer creates packets out of segments handed down from the Transport layer.
204.51.170.85
Decrease the window size.
Network