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Test your basic knowledge |
Cisco Prep
Start Test
Study First
Subjects
:
cisco
,
it-skills
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. 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.
Router
The Data Link layer is responsible for the framing of data packets.
Transport
2. This layer creates a virtual circuit before transmitting between two end stations.
Transport
Data Link & Physical
RJ45 UTP crossover cable.
Router
3. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
The Data Link layer is responsible for the framing of data packets.
Transport
4. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
The Data Link layer is responsible for the framing of data packets.
Switch to switch - host to host - switch to host
Hub
5. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Hub
Switch or bridge
Data Link
D8:1B:3D:76
6. Segmentation of a data stream happens at which layer of the OSI model?
Hub
Hub and repeater
84:D2:43:B3
Transport
7. This device breaks up collision domains and broadcast domains.
The Network layer provides routing through an internetwork and logical addressing.
Source and destination MAC address and FCS field
Router
The Session layer creates sessions between different hosts' applications.
8. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
Transport
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
9. What is the purpose of flow control?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
00001010.00001011.00001100.01100011
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.
10. Which layer segments and reassembles data into a data stream?
Buffering - windowing - congestion avoidance
Transport
00001010.00001011.00001100.01100011
The Network layer creates packets out of segments handed down from the Transport layer.
11. Why does the data communication industry use the layered OSI reference model? (Name two)
Decrease the window size.
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.
CA:F5:83:EB
12. Logical addressing is used at this layer.
Network
198.211.57.209
132.210.184.166
48 bits (6 bytes)
13. What are two purposes for segmentation with a bridge?
Decrease the window size.
132.210.184.166
To create more collision domains and to add more bandwidth for users.
RJ45 UTP crossover cable.
14. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Switch or bridge
Hub and repeater
Network
00001010.00001011.00001100.01100011
15. Which layer provides logical addressing that routers will use for path determination?
Hub and repeater
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
16. 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?
204.51.170.85
The Transport layer user virtual circuits to create a reliable connection between two hosts.
D8:1B:3D:76
The Session layer creates sessions between different hosts' applications.
17. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
RJ45 UTP rolled cable.
204.51.170.85
The Presentation layer makes sure that data is in a readable format for the Application layer.
18. This device sends and receives information about the Network layer.
Router
Data - segment - packet - frame - bit
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
19. This device creates one big collision domain and one large broadcast domain.
The Session layer sets up - maintains - and terminates sessions between applications.
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.
Hub
The Session layer creates sessions between different hosts' applications.
20. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Decrease the window size.
198.211.57.209
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data - segment - packet - frame - bit
21. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Bridge or switch
3 - 2 - 1 - none
Hub
RJ45 UTP crossover cable.
22. Ethernet is defined at these layers.
The Data Link layer frames packets received from the Network layer.
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.
Data Link & Physical
Hub
23. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
Source and destination MAC address and FCS field
The Data Link layer is responsible for the framing of data packets.
The Network layer provides logical addressing - typically IP addressing and routing.
24. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
To create more collision domains and to add more bandwidth for users.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
RJ45 UTP crossover cable.
Buffering - windowing - congestion avoidance
25. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
Data Link & Physical
00001010.00001011.00001100.01100011
The Transport layer user virtual circuits to create a reliable connection between two hosts.
26. This layer uses service access points.
The Transport layer segments user data.
Data Link (LLC sublayer)
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link
27. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Transport
84:D2:43:B3
183/B7
Hub
28. Which layer is represented by bits?
Buffering - windowing - congestion avoidance
The Network layer provides logical addressing - typically IP addressing and routing.
The Network layer provides routing through an internetwork and logical addressing.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
29. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Network layer provides routing through an internetwork and logical addressing.
Hub
183/B7
10101100.00010000.00010100.00110111
30. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Presentation layer makes sure that data is in a readable format for the Application layer.
198.211.57.209
The Physical layer is responsible for the electrical and mechanical connections between devices.
Segments - packets - frames - bits
31. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
Router
11000000.10101000.00001010.00001111
Hub
32. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
The Transport layer segments user data.
Layer 4
Switch to switch - host to host - switch to host
33. Which layer is represented by frames?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Data Link layer frames packets received from the Network layer.
The Data Link layer is responsible for the framing of data packets.
Network
34. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
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.
RJ45 UTP crossover cable.
10101100.00010000.00010100.00110111
35. 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?
198.211.57.209
10101100.00010000.00010100.00110111
Transport
Decrease the window size.
36. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Router
132.210.184.166
10101100.00010000.00010100.00110111
37. 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 - segment - packet - frame - bit
Data Link (LLC sublayer)
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
38. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
RJ45 UTP rolled cable.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network
198.211.57.209
39. Which layer is responsible for keeping the data from different applications separate on the network?
40. What type of RJ45 UTP cable is used between switches?
132.210.184.166
The Presentation layer makes sure that data is in a readable format for the Application layer.
RJ45 UTP crossover cable.
Transport
41. Which layer is represented by segments?
The Transport layer segments user data.
84:D2:43:B3
Router
Transport
42. Convert 10.11.12.99 to binary 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
To provide a means for the receiver to govern the amount of data sent by the sender.
00001010.00001011.00001100.01100011
Layer 4
43. 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).
Hub
Bridge or switch
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
44. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
The Data Link layer frames packets received from the Network layer.
Transport
Data - segment - packet - frame - bit
45. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
48 bits (6 bytes)
Transport
46. This device can measure the distance to a remote network.
Transport
Fiber-opticcable
CA:F5:83:EB
Router
47. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
3 - 2 - 1 - none
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router
132.210.184.166
48. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Data - segment - packet - frame - bit
The Data Link layer frames packets received from the Network layer.
198.211.57.209
Transport
49. Which of the following are 3 common types of flow control?
Bridge or switch
Buffering - windowing - congestion avoidance
48 bits (6 bytes)
Hub
50. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Switch to switch - host to host - switch to host
The Data Link layer is responsible for the framing of data packets.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Segments - packets - frames - bits