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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. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
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
198.211.57.209
Source and destination MAC address and FCS field
Packet switching - Packet filtering - Internetwork communication - Path selection

2. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
Data Link (LLC sublayer)
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub

3. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
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).
Data Link
Buffering - windowing - congestion avoidance

4. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
132.210.184.166
Data Link
Buffering - windowing - congestion avoidance
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.

5. Name four router functions.
3 - 2 - 1 - none
132.210.184.166
204.51.170.85
Packet switching - Packet filtering - Internetwork communication - Path selection

6. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Data Link
Layer 4
183/B7
Router

7. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Switch to switch - host to host - switch to host
Fiber-opticcable
Source and destination MAC address and FCS field
Bridge or switch

8. Segmentation of a data stream happens at which layer of the OSI model?
To provide a means for the receiver to govern the amount of data sent by the sender.
11000000.10101000.00001010.00001111
Transport
The Session layer sets up - maintains - and terminates sessions between applications.

9. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
204.51.170.85
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
D8:1B:3D:76

10. Ethernet is defined at these layers.
Bridge or switch
Network
Data Link & Physical
204.51.170.85

11. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Network layer provides logical addressing - typically IP addressing and routing.
Data Link & Physical
Switch or bridge
Buffering - windowing - congestion avoidance

12. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub and repeater
Buffering - windowing - congestion avoidance
48 bits (6 bytes)

13. Convert 192.168.10.15 to binary format.
The Network layer provides logical addressing - typically IP addressing and routing.
198.211.57.209
The Transport layer user virtual circuits to create a reliable connection between two hosts.
11000000.10101000.00001010.00001111

14. This layer creates a virtual circuit before transmitting between two end stations.
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
183/B7
Transport

15. This device breaks up collision domains and broadcast domains.
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
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

16. Why does the data communication industry use the layered OSI reference model? (Name two)
204.51.170.85
Packet switching - Packet filtering - Internetwork communication - Path selection
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.

17. 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.
To create more collision domains and to add more bandwidth for users.
Hub and repeater
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).

18. This device can measure the distance to a remote network.
The Transport layer segments user data.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
Network

19. Convert 172.16.20.55 to binary format.
Transport
The Data Link layer frames packets received from the Network layer.
10101100.00010000.00010100.00110111
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.

20. This layer uses service access points.
To provide a means for the receiver to govern the amount of data sent by the sender.
Router
Switch or bridge
Data Link (LLC sublayer)

21. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
RJ45 UTP crossover cable.
D8:1B:3D:76

22. Which layer is represented by segments?
Network
The Data Link layer frames packets received from the Network layer.
Bridge or switch
The Transport layer segments user data.

23. Logical addressing is used at this layer.
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
Decrease the window size.
Network
Router

24. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
The Physical layer is responsible for the electrical and mechanical connections between devices.
RJ45 UTP rolled cable.
Buffering - windowing - congestion avoidance
Hub and repeater

25. This layer supports flow control and sequencing.
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).
Decrease the window size.
183/B7
Transport

26. This device can never run full duplex.
Hub
Buffering - windowing - congestion avoidance
The Session layer sets up - maintains - and terminates sessions between applications.
Transport

27. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
11000000.10101000.00001010.00001111
Switch or bridge
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.

28. What are two purposes for segmentation with a bridge?
The Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP crossover cable.
Data Link
To create more collision domains and to add more bandwidth for users.

29. Which layer segments and reassembles data into a data stream?
198.211.57.209
Hub and repeater
Transport
Data Link (LLC sublayer)

30. At which layer is routing implemented - enabling connections and path selection between two end systems?
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.
183/B7
The Network layer provides routing through an internetwork and logical addressing.

31. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Data Link & Physical
Fiber-opticcable
Hub and repeater

32. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Router
The Session layer creates sessions between different hosts' applications.
To provide a means for the receiver to govern the amount of data sent by the sender.

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

34. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Fiber-opticcable
00001010.00001011.00001100.01100011
Hub
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

35. Which layer is responsible for creating - managing - and terminating sessions between applications?
Router
RJ45 UTP crossover cable.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Session layer sets up - maintains - and terminates sessions between applications.

36. Which layer is represented by frames?
204.51.170.85
The Data Link layer frames packets received from the Network layer.
Data Link
To provide a means for the receiver to govern the amount of data sent by the sender.

37. Which two fields are contained within an IEEE Ethernet frame header?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Source and destination MAC address and FCS field
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data - segment - packet - frame - bit

38. When data is encapsulated - which is the correct order?
Layer 4
RJ45 UTP rolled cable.
Data - segment - packet - frame - bit
RJ45 UTP crossover cable.

39. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Data Link layer is responsible for the framing of data packets.
198.211.57.209
Buffering - windowing - congestion avoidance
The Presentation layer makes sure that data is in a readable format for the Application layer.

40. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
To provide a means for the receiver to govern the amount of data sent by the sender.
198.211.57.209
84:D2:43:B3
The Data Link layer frames packets received from the Network layer.

41. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
RJ45 UTP rolled cable.
Layer 4
Transport
RJ45 UTP crossover cable.

42. Which layer is represented by packets?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Network
Buffering - windowing - congestion avoidance
The Network layer creates packets out of segments handed down from the Transport layer.

43. What type of RJ45 UTP cable is used between switches?
D8:1B:3D:76
204.51.170.85
RJ45 UTP crossover cable.
The Session layer creates sessions between different hosts' applications.

44. What is the purpose of flow control?
Switch or bridge
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub

45. Convert 10.11.12.99 to binary format.
Buffering - windowing - congestion avoidance
00001010.00001011.00001100.01100011
Bridge or switch
RJ45 UTP rolled cable.

46. 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.
Transport
Bridge or switch
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

47. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
84:D2:43:B3
RJ45 UTP crossover cable.
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.

48. This device creates one big collision domain and one large broadcast domain.
RJ45 UTP crossover cable.
Data - segment - packet - frame - bit
Hub
Layer 4

49. 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?
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.
Network
The Data Link layer is responsible for the framing of data packets.

50. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Network layer creates packets out of segments handed down from the Transport layer.
183/B7
Transport