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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 is the bit length and expression form of a MAC address?
Source and destination MAC address and FCS field
48 bits (6 bytes)
RJ45 UTP rolled cable.
CA:F5:83:EB

2. This layer uses service access points.
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link (LLC sublayer)
00001010.00001011.00001100.01100011
The Transport layer user virtual circuits to create a reliable connection between two hosts.

3. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
RJ45 UTP crossover cable.
Transport
Switch to switch - host to host - switch to host

4. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
To create more collision domains and to add more bandwidth for users.
Router
Layer 4
CA:F5:83:EB

5. Ethernet is defined at these layers.
Data Link & Physical
Hub
The Session layer sets up - maintains - and terminates sessions between applications.
00001010.00001011.00001100.01100011

6. This device creates one big collision domain and one large broadcast domain.
132.210.184.166
Segments - packets - frames - bits
Hub
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

7. Which of the following are 3 common types of flow control?
Data Link & Physical
Transport
Buffering - windowing - congestion avoidance
11000000.10101000.00001010.00001111

8. Which layer segments and reassembles data into a data stream?
3 - 2 - 1 - none
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport
Router

9. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
3 - 2 - 1 - none
Packet switching - Packet filtering - Internetwork communication - Path selection
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
Bridge or switch

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

11. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
48 bits (6 bytes)
The Physical layer is responsible for the electrical and mechanical connections between devices.
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link

12. 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?
Transport
Switch or bridge
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Decrease the window size.

13. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
183/B7
Data Link
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport

14. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
00001010.00001011.00001100.01100011
The Data Link layer is responsible for the framing of data packets.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

15. Name three types of connections that can use full duplex.
11000000.10101000.00001010.00001111
Switch to switch - host to host - switch to host
Router
Bridge or switch

16. Which two fields are contained within an IEEE Ethernet frame header?
Fiber-opticcable
RJ45 UTP rolled 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
Source and destination MAC address and FCS field

17. When data is encapsulated - which is the correct order?
Data Link
Data - segment - packet - frame - bit
D8:1B:3D:76
Switch to switch - host to host - switch to host

18. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Source and destination MAC address and FCS field
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer provides routing through an internetwork and logical addressing.

19. 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?
84:D2:43:B3
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
RJ45 UTP crossover cable.
Transport

20. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Data Link & Physical
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 or bridge
3 - 2 - 1 - none

21. 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.
Segments - packets - frames - bits
3 - 2 - 1 - none
The Physical layer is responsible for the electrical and mechanical connections between devices.

22. Convert 11001010.11110101.10000011.11101011 to hexadecimal 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
Hub
The Data Link layer frames packets received from the Network layer.
CA:F5:83:EB

23. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
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.
Segments - packets - frames - bits
The Session layer creates sessions between different hosts' applications.
00001010.00001011.00001100.01100011

24. This device breaks up collision domains and broadcast domains.
Router
00001010.00001011.00001100.01100011
The Presentation layer makes sure that data is in a readable format for the Application layer.
Network

25. This device uses hardware addresses to filter a network.
To create more collision domains and to add more bandwidth for users.
The Session layer sets up - maintains - and terminates sessions between applications.
Bridge or switch
Layer 4

26. This device can measure the distance to a remote network.
183/B7
Router
Network
Data Link

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

28. 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 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 Network layer creates packets out of segments handed down from the Transport layer.
84:D2:43:B3
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.

29. Logical addressing is used at this layer.
204.51.170.85
Switch or bridge
Network
Hub

30. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Segments - packets - frames - bits
Layer 4
The Presentation layer makes sure that data is in a readable format for the Application layer.
Source and destination MAC address and FCS field

31. This layer creates a virtual circuit before transmitting between two end stations.
Transport
Hub
The Network layer creates packets out of segments handed down from the Transport layer.
Router

32. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Session layer sets up - maintains - and terminates sessions between applications.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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.

33. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link
The Transport layer segments user data.

34. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Data Link layer frames packets received from the Network layer.
Network
204.51.170.85
Transport

35. Convert 172.16.20.55 to binary format.
Source and destination MAC address and FCS field
Router
10101100.00010000.00010100.00110111
Transport

36. What are two purposes for segmentation with a bridge?
To provide a means for the receiver to govern the amount of data sent by the sender.
The Data Link layer frames packets received from the Network layer.
To create more collision domains and to add more bandwidth for users.
The Transport layer segments user data.

37. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Transport
183/B7
The Session layer creates sessions between different hosts' applications.
Data - segment - packet - frame - bit

38. Which layer is represented by bits?
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.
Fiber-opticcable
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Buffering - windowing - congestion avoidance

39. Which layer is represented by segments?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Transport layer segments user data.
132.210.184.166
Network

40. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Layer 4
11000000.10101000.00001010.00001111
132.210.184.166
The Session layer sets up - maintains - and terminates sessions between applications.

41. Convert 10.11.12.99 to binary format.
198.211.57.209
00001010.00001011.00001100.01100011
Fiber-opticcable
Data Link (LLC sublayer)

42. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Decrease the window size.
D8:1B:3D:76
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
Data - segment - packet - frame - bit

43. Name four router functions.
To provide a means for the receiver to govern the amount of data sent by the sender.
84:D2:43:B3
CA:F5:83:EB
Packet switching - Packet filtering - Internetwork communication - Path selection

44. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
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
Router
Network

45. This device can never run full duplex.
Network
Transport
Data Link
Hub

46. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Router
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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
Hub and repeater

47. Convert 192.168.10.15 to binary format.
RJ45 UTP crossover cable.
Hub
3 - 2 - 1 - none
11000000.10101000.00001010.00001111

48. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Source and destination MAC address and FCS field
RJ45 UTP rolled cable.
132.210.184.166
Router

49. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Router
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.
Packet switching - Packet filtering - Internetwork communication - Path selection
Switch or bridge

50. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Segments - packets - frames - bits
Packet switching - Packet filtering - Internetwork communication - Path selection
11000000.10101000.00001010.00001111