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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 represented by segments?
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.
The Transport layer segments user data.
Switch or bridge

2. At which layer is routing implemented - enabling connections and path selection between two end systems?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data Link & Physical
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides routing through an internetwork and logical addressing.

3. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Hub and repeater
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.
132.210.184.166
Data Link & Physical

4. 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.
Hub and repeater
Network
Router

5. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
48 bits (6 bytes)
The Session layer creates sessions between different hosts' applications.
Segments - packets - frames - bits
The Network layer provides routing through an internetwork and logical addressing.

6. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Data Link
183/B7
132.210.184.166
198.211.57.209

7. Name three types of connections that can use full duplex.
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
3 - 2 - 1 - none
The Physical layer is responsible for the electrical and mechanical connections between devices.

8. 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?
Switch or bridge
Decrease the window size.
Data Link & Physical
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

9. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data - segment - packet - frame - bit
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
10101100.00010000.00010100.00110111

10. 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 Transport layer segments user data.
The Data Link layer frames packets received from the Network layer.
204.51.170.85

11. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Buffering - windowing - congestion avoidance
198.211.57.209
To create more collision domains and to add more bandwidth for users.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

12. Which of the following are 3 common types of flow control?
Data Link & Physical
Buffering - windowing - congestion avoidance
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Bridge or switch

13. This device uses hardware addresses to filter a network.
Decrease the window size.
Bridge or switch
84:D2:43:B3
The Presentation layer makes sure that data is in a readable format for the Application layer.

14. Convert 10.11.12.99 to binary format.
Transport
00001010.00001011.00001100.01100011
The Session layer creates sessions between different hosts' applications.
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.

15. Segmentation of a data stream happens at which layer of the OSI model?
The Session layer creates sessions between different hosts' applications.
Data Link & Physical
D8:1B:3D:76
Transport

16. What is the purpose of flow control?
3 - 2 - 1 - none
Decrease the window size.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Network layer creates packets out of segments handed down from the Transport layer.

17. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Hub and repeater
Network
Data - segment - packet - frame - bit
84:D2:43:B3

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?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer creates packets out of segments handed down from the Transport layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
204.51.170.85

19. This layer supports flow control and sequencing.
Data Link (LLC sublayer)
Transport
204.51.170.85
The Network layer provides logical addressing - typically IP addressing and routing.

20. What are two purposes for segmentation with a bridge?
Switch or bridge
The Physical layer is responsible for the electrical and mechanical connections between devices.
To create more collision domains and to add more bandwidth for users.
183/B7

21. This device can measure the distance to a remote network.
Router
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
RJ45 UTP crossover cable.

22. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
3 - 2 - 1 - none
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport

23. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Session layer creates sessions between different hosts' applications.
Switch or bridge
Packet switching - Packet filtering - Internetwork communication - Path selection
Switch to switch - host to host - switch to host

24. This device breaks up collision domains and broadcast domains.
Packet switching - Packet filtering - Internetwork communication - Path selection
Router
Bridge or switch
132.210.184.166

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

26. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Hub and repeater
Router
To create more collision domains and to add more bandwidth for users.

27. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
3 - 2 - 1 - none
Transport
48 bits (6 bytes)

28. This layer creates a virtual circuit before transmitting between two end stations.
198.211.57.209
11000000.10101000.00001010.00001111
3 - 2 - 1 - none
Transport

29. This device sends and receives information about the Network layer.
Router
Data Link & Physical
The Data Link layer frames packets received from the Network layer.
The Session layer sets up - maintains - and terminates sessions between applications.

30. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Session layer creates sessions between different hosts' applications.
Hub and repeater
00001010.00001011.00001100.01100011
The Session layer sets up - maintains - and terminates sessions between applications.

31. Which layer is represented by 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
The Network layer creates packets out of segments handed down from the Transport layer.
11000000.10101000.00001010.00001111
Transport

32. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Layer 4
Data Link & Physical
The Transport layer segments user data.
The Presentation layer makes sure that data is in a readable format for the Application layer.

33. 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).
Bridge or switch
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router

34. 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?
Hub
Decrease the window size.
204.51.170.85
The Transport layer user virtual circuits to create a reliable connection between two hosts.

35. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Transport layer segments user data.

36. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Layer 4
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 is responsible for transporting 1s and 0s in a digital signal.
D8:1B:3D:76

37. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub
10101100.00010000.00010100.00110111
00001010.00001011.00001100.01100011

38. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
10101100.00010000.00010100.00110111
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.
Data - segment - packet - frame - bit

39. What is the bit length and expression form of a MAC address?
00001010.00001011.00001100.01100011
84:D2:43:B3
48 bits (6 bytes)
Network

40. Which layer provides logical addressing that routers will use for path determination?
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
The Network layer provides logical addressing - typically IP addressing and routing.
84:D2:43:B3

41. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
To provide a means for the receiver to govern the amount of data sent by the sender.
RJ45 UTP rolled cable.
Network
CA:F5:83:EB

42. This device can never run full duplex.
Network
The Network layer creates packets out of segments handed down from the Transport layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub

43. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides routing through an internetwork and logical addressing.
Transport

44. This layer uses service access points.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
132.210.184.166
Data Link (LLC sublayer)
The Session layer sets up - maintains - and terminates sessions between applications.

45. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
The Session layer sets up - maintains - and terminates sessions between applications.
The Session layer creates sessions between different hosts' applications.
Transport

46. This device creates one big collision domain and one large broadcast domain.
198.211.57.209
Hub
Router
Transport

47. 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 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).
Packet switching - Packet filtering - Internetwork communication - Path selection

48. Logical addressing is used at this layer.
Network
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).
Source and destination MAC address and FCS field
Router

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 Network layer provides routing through an internetwork and logical addressing.
To create more collision domains and to add more bandwidth for users.
Switch to switch - host to host - switch to host

50. Convert 192.168.10.15 to binary format.
Segments - packets - frames - bits
RJ45 UTP rolled cable.
D8:1B:3D:76
11000000.10101000.00001010.00001111