Time limit: 0
Quiz-summary
0 of 25 questions completed
Questions:
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
Information
Network Addressing and Basic Troubleshooting Module 1 - 3 Checkpoint Test Online
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 25 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Average score |
|
Your score |
|
Categories
- Not categorized 0%
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- Answered
- Review
-
Question 1 of 25
1. Question
1 pointsA network specialist has been hired to install a network in a company that assembles airplane engines. Because of the nature of the business, the area is highly affected by electromagnetic interference. Which type of network media should be recommended so that the data communication will not be affected by EMI?Correct
Incorrect
Hint
Optical fiber uses light to transmit signals. Therefore, fiber-optic cable is not affected by EMI or RFI. -
Question 2 of 25
2. Question
1 pointsWhich physical layer network standard would use 8B/10B encoding?Correct
Incorrect
Hint
In Manchester encoding, the transition occurs at the middle of each bit period. Manchester encoding is used in older Ethernet standards such as 10BASE-T. Ethernet 100BASE-X family uses 4B/5B encoding and 1000BASE-X uses 8B/10B encoding. -
Question 3 of 25
3. Question
1 pointsWhat are two characteristics of STP cable? (Choose two.)Correct
Incorrect
Hint
STP provides better noise protection than does UTP cabling. However, compared to UTP cable, STP cable is significantly more expensive and difficult to install. If the cable is improperly grounded, the shield may act as an antenna and pick up unwanted signals. -
Question 4 of 25
4. Question
1 pointsIn addition to the cable length, what two factors could interfere with the communication carried over UTP cables? (Choose two.)Correct
Incorrect
Hint
Copper media is widely used in network communications. However, copper media is limited by distance and signal interference. Data is transmitted on copper cables as electrical pulses. The electrical pulses are susceptible to interference from two sources: – Electromagnetic interference (EMI) or radio frequency interference (RFI) – EMI and RFI signals can distort and corrupt the data signals being carried by copper media – Crosstalk – Crosstalk is a disturbance caused by the electric or magnetic fields of a signal on one wire interfering with the signal in an adjacent wire. -
Question 5 of 25
5. Question
1 pointsWhat is a primary role of the Physical layer in transmitting data on the network?Correct
Incorrect
Hint
The OSI physical layer provides the means to transport the bits that make up a frame across the network media. This layer accepts a complete frame from the data link layer and encodes it as a series of signals that are transmitted to the local media. -
Question 6 of 25
6. Question
1 pointsHow do goodput, throughput, and bandwidth relate to network data transmissions?Correct
Incorrect
Hint
Bandwidth is the capacity at which a medium can carry data, so it is always higher than throughput and goodput. Goodput is throughput minus traffic overhead for establishing sessions, acknowledgments, encapsulation, and retransmitted bits, so it is always lower than throughput. -
Question 7 of 25
7. Question
1 pointsTwo network interns are working for a company that is installing new networks with both copper and fiber-optic cabling. The interns are reviewing information in preparation for the work. What is a property of a fiber-optic connector?Correct
Incorrect
Hint
Straight-tip connectors lock securely with a “twist-on/twist-off” bayonet-style mechanism. SC connectors are a widely-adopted LAN and WAN connector that uses a push-pull mechanism to ensure positive insertion. LC simplex connectors are a smaller version of the SC connector. A duplex multimode LC connector is similar to an LC simplex connector, but uses a duplex connector. -
Question 8 of 25
8. Question
1 pointsWhat is CSMA/CA on a network?Correct
Incorrect
Hint
Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) is a wireless technology that allows only one device to transmit on a channel at a given moment and prevents collisions from occurring. -
Question 9 of 25
9. Question
1 pointsWhen troubleshooting network problems, where would a network administrator find the configuration information, such as the computer names and the IP addresses that are used?Correct
Incorrect
Hint
A logical topology usually contains relevant network configuration information, such as the following: – Device names – Device IP addressing – Network designations – Configuration information -
Question 10 of 25
10. Question
1 pointsYou are asked to document your school network. What type of topology diagram would you draw to show how devices are connected to the network?Correct
Incorrect
Hint
There are two types of topology diagrams. The logical topology uses icons to identify network devices and show how the devices are connected to the school network. The physical topology diagram shows where the network devices are actually located in each room of the school. -
Question 11 of 25
11. Question
1 pointsAlthough CSMA/CD is still a feature of Ethernet, why is it no longer necessary?Correct
Incorrect
Hint
The use of Layer 2 switches operating in full-duplex mode eliminates collisions, thereby eliminating the need for CSMA/CD. -
Question 12 of 25
12. Question
1 pointsWhich statement describes an extended star topology?Correct
Incorrect
Hint
In an extended star topology, central intermediate devices interconnect other star topologies. -
Question 13 of 25
13. Question
1 pointsIn what communication mode does an Ethernet switch operate by default?Correct
Incorrect
Hint
Ethernet switches operate in full-duplex mode by default when powered on. Point-to-point and mesh are logical topologies. -
Question 14 of 25
14. Question
1 pointsA technician has been asked to develop a physical topology for a network that provides a high level of redundancy. Which physical topology requires that every node is attached to every other node on the network?Correct
Incorrect
Hint
The mesh topology provides high availability because every node is connected to all other nodes. Mesh topologies can be found in WANs. A partial mesh topology can also be used where some, but not all, end points connect to one another. -
Question 15 of 25
15. Question
1 pointsHow do hosts ensure that their packets are directed to the correct network destination?Correct
Incorrect
Hint
Hosts must maintain their own local routing table to ensure that network layer packets are directed to the correct destination network. This local table typically contains a route to the loopback interface, a route to the network that the host is connected to, and a local default route, which represents the route that packets must take to reach all remote network addresses. -
Question 16 of 25
16. Question
1 pointsWhat network address and subnet mask combination would be used to create a default static route that matches any IPv4 destination?Correct
Incorrect
Hint
For a route to be considered a default static route it must use a network ID and subnetmask combination that will match any destination IP address. The address and mask of 0.0.0.0 0.0.0.0 in a static route will create a route table entry that matches any destination. -
Question 17 of 25
17. Question
1 pointsWhat routing table entry has a next hop address associated with a destination network?Correct
Incorrect
Hint
Routing table entries for remote routes will have a next hop IP address. The next hop IP address is the address of the router interface of the next device to be used to reach the destination network. Directly-connected and local routes have no next hop, because they do not require going through another router to be reached. -
Question 18 of 25
18. Question
1 pointsWhich feature on a Cisco router permits the forwarding of traffic for which there is no specific route?Correct
Incorrect
Hint
A default static route is used as a gateway of last resort to forward unknown destination traffic to a next hop/exit interface. The next-hop or exit interface is the destination to send traffic to on a network after the traffic is matched in a router. The route source is the location a route was learned from. -
Question 19 of 25
19. Question
1 pointsIf the default gateway is configured incorrectly on the host, what is the impact on communications?Correct
Incorrect
Hint
A default gateway is only required to communicate with devices on another network. The absence of a default gateway does not affect connectivity between devices on the same local network. -
Question 20 of 25
20. Question
1 pointsA computer has to send a packet to a destination host in the same LAN. How will the packet be sent?Correct
Incorrect
Hint
If the destination host is in the same LAN as the source host, there is no need for a default gateway. A default gateway is needed if a packet needs to be sent outside the LAN. -
Question 21 of 25
21. Question
1 pointsWhich portion of the network layer address does a router use to forward packets?Correct
Incorrect
Hint
There are two parts to an a network layer address, the network and host portions. Routers are not concerned about delivering packets to hosts. Routers are concerned with delivering packets to the network that a destination host is a member of. -
Question 22 of 25
22. Question
1 pointsWhy are two strands of fiber used for a single fiber optic connection?Correct
Incorrect
Hint
Light can only travel in one direction down a single strand of fiber. In order to allow for full-duplex communication two strands of fiber must be connected between each device. -
Question 23 of 25
23. Question
1 pointsWhat is a common characteristic of both CSMA/CD and CSMA/CA?Correct
Incorrect
Hint
All protocols based on CSMA are nondeterministic. Ethernet implements CSMA/CD and 802.11 (wireless, not Ethernet) implements CSMA/CA. Although there are a number of methods to avoid collisions, they may occur. -
Question 24 of 25
24. Question
1 pointsIn which hybrid logical topology are some devices fully interconnected with all other devices, while some are not?Correct
Incorrect
Hint
In a hybrid topology like a partial mesh topology, some devices are fully interconnected with all others while some are not. -
Question 25 of 25
25. Question
1 pointsWhich statement describes the logical topology for a LAN?Correct
Incorrect
Hint
A logical topology describes how the hosts access the network medium, whether the network is a broadcast network, a token passing network, or any other type of network.