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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 provides logical addressing that routers will use for path determination?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Decrease the window size.
The Network layer provides logical addressing - typically IP addressing and routing.
The Data Link layer frames packets received from the Network layer.

2. Which layer is represented by frames?
Data Link & Physical
The Network layer creates packets out of segments handed down from the Transport layer.
Hub and repeater
The Data Link layer frames packets received from the Network layer.

3. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
198.211.57.209
Transport
84:D2:43:B3
CA:F5:83:EB

4. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
RJ45 UTP rolled cable.
11000000.10101000.00001010.00001111
Switch or bridge

5. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
The Transport layer segments user data.
The Network layer creates packets out of segments handed down from the Transport layer.
Hub

6. This layer uses service access points.
Data Link (LLC sublayer)
Transport
Source and destination MAC address and FCS field
The Transport layer user virtual circuits to create a reliable connection between two hosts.

7. 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 Transport layer segments user data.
204.51.170.85
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

8. Which of the following are 3 common types of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link (LLC sublayer)
Buffering - windowing - congestion avoidance
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

9. This layer supports flow control and sequencing.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Switch to switch - host to host - switch to host
D8:1B:3D:76
Transport

10. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub and repeater

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?
Data Link (LLC sublayer)
Hub and repeater
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Physical layer is responsible for the electrical and mechanical connections between devices.

12. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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 creates packets out of segments handed down from the Transport layer.
132.210.184.166

13. Which layer is responsible for creating - managing - and terminating sessions between applications?
Data Link (LLC sublayer)
RJ45 UTP rolled cable.
The Session layer creates sessions between different hosts' applications.
The Session layer sets up - maintains - and terminates sessions between applications.

14. This device breaks up collision domains and broadcast domains.
Router
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.
Switch or bridge

15. This device can measure the distance to a remote network.
The Session layer sets up - maintains - and terminates sessions between applications.
D8:1B:3D:76
84:D2:43:B3
Router

16. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Session layer sets up - maintains - and terminates sessions between applications.
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer provides routing through an internetwork and logical addressing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

17. This device creates one big collision domain and one large broadcast domain.
198.211.57.209
Data Link & Physical
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub

18. 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?
Hub and repeater
3 - 2 - 1 - none
The Session layer creates sessions between different hosts' applications.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

19. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Buffering - windowing - congestion avoidance
Source and destination MAC address and FCS field
Transport
Hub and repeater

20. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Data Link layer is responsible for the framing of data packets.
Transport
3 - 2 - 1 - none
Layer 4

21. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Hub
Data Link (LLC sublayer)
204.51.170.85
Buffering - windowing - congestion avoidance

22. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
Network
The Session layer sets up - maintains - and terminates sessions between applications.

23. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub and repeater
Segments - packets - frames - bits

24. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
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.
Source and destination MAC address and FCS field

25. Convert 10.11.12.99 to binary format.
RJ45 UTP rolled cable.
To create more collision domains and to add more bandwidth for users.
The Session layer sets up - maintains - and terminates sessions between applications.
00001010.00001011.00001100.01100011

26. 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.
D8:1B:3D:76
Network
The Session layer sets up - maintains - and terminates sessions between applications.

27. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Data Link layer frames packets received from the Network layer.
198.211.57.209
D8:1B:3D:76
Data - segment - packet - frame - bit

28. What is the bit length and expression form of a MAC address?
To create more collision domains and to add more bandwidth for users.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
48 bits (6 bytes)
The Network layer provides routing through an internetwork and logical addressing.

29. 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
132.210.184.166
Switch or bridge
The Physical layer is responsible for the electrical and mechanical connections between devices.

30. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
The Data Link layer frames packets received from the Network layer.
183/B7
RJ45 UTP rolled cable.
132.210.184.166

31. 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 Data Link layer frames packets received from the Network layer.
Data Link & Physical
The Session layer sets up - maintains - and terminates sessions between applications.

32. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Hub and repeater
CA:F5:83:EB
Transport
Transport

33. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Decrease the window size.
The Data Link layer frames packets received from the Network layer.
D8:1B:3D:76
Hub and repeater

34. When data is encapsulated - which is the correct order?
Hub and repeater
Data - segment - packet - frame - bit
84:D2:43:B3
The Network layer provides routing through an internetwork and logical addressing.

35. Which two fields are contained within an IEEE Ethernet frame header?
Switch or bridge
Transport
Source and destination MAC address and FCS field
Segments - packets - frames - bits

36. This layer creates a virtual circuit before transmitting between two end stations.
10101100.00010000.00010100.00110111
Transport
The Session layer sets up - maintains - and terminates sessions between applications.
11000000.10101000.00001010.00001111

37. This device uses hardware addresses to filter a network.
Data - segment - packet - frame - bit
48 bits (6 bytes)
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Bridge or switch

38. This device sends and receives information about the Network layer.
The Network layer provides logical addressing - typically IP addressing and routing.
Decrease the window size.
The Data Link layer frames packets received from the Network layer.
Router

39. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Network
Source and destination MAC address and FCS field
The Data Link layer is responsible for the framing of data packets.
00001010.00001011.00001100.01100011

40. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Transport
Switch or bridge
Router

41. Which layer segments and reassembles data into a data stream?
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Switch to switch - host to host - switch to host
Transport

42. 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.
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.

43. What type of RJ45 UTP cable is used between switches?
132.210.184.166
RJ45 UTP crossover cable.
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
10101100.00010000.00010100.00110111

44. Which layer is represented by packets?
CA:F5:83:EB
183/B7
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer creates packets out of segments handed down from the Transport layer.

45. Convert 192.168.10.15 to binary format.
Router
11000000.10101000.00001010.00001111
84:D2:43:B3
Switch or bridge

46. Why does the data communication industry use the layered OSI reference model? (Name two)
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).
Transport
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. Which layer is represented by segments?
Data Link (LLC sublayer)
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer segments user data.
3 - 2 - 1 - none

48. Ethernet is defined at these layers.
Data Link & Physical
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
00001010.00001011.00001100.01100011
Decrease the window size.

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

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50. Logical addressing is used at this layer.
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub and repeater