1.
Which definition describes the term Internet?
Correct Answer
C. A network of networks that connects countries around the world
Explanation
The term "Internet" refers to a network of networks that connects countries around the world. It is a global system of interconnected computer networks that allows for the transmission and exchange of data and information. This definition highlights the expansive nature of the Internet, emphasizing its ability to connect various networks across different countries and facilitate communication and access to information on a global scale.
2.
What type of connection point is a point of presence (POP)?
Correct Answer
D. Between an ISP and a home-based LAN
Explanation
A point of presence (POP) is a physical location where an Internet Service Provider (ISP) has equipment and infrastructure to connect their network to the internet. It serves as an access point for connecting the ISP's network to the customer's home-based Local Area Network (LAN). Therefore, the correct answer is between an ISP and a home-based LAN.
3.
What is the term for the group of high-speed data links that interconnect ISPs?
Correct Answer
E. Internet backbone
Explanation
The term for the group of high-speed data links that interconnect ISPs is the Internet backbone. This refers to the main network infrastructure that carries internet traffic between different regions and countries. It is responsible for providing the necessary bandwidth and connectivity for ISPs to exchange data and connect to other networks.
4.
Which device can act as a router, switch, and wireless access point in one package?
Correct Answer
E. ISR
Explanation
An ISR (Integrated Services Router) can act as a router, switch, and wireless access point in one package. It combines the functions of these devices into a single unit, providing routing capabilities to connect multiple networks, switching capabilities to connect devices within a network, and wireless access point functionality to enable wireless connectivity. This integration simplifies network management and reduces the need for multiple devices, making it a versatile and efficient solution for network infrastructure.
5.
What are the three characteristics of business-class ISP service?
Correct Answer(s)
A. Fast connections
B. Extra web space
E. Additional e-mail accounts
Explanation
The three characteristics of business-class ISP service are fast connections, extra web space, and additional e-mail accounts. These features are important for businesses as they require reliable and high-speed internet connections to carry out their operations efficiently. Extra web space allows businesses to host more data and content on their websites, while additional e-mail accounts enable them to manage multiple email addresses for various departments or employees. These features cater specifically to the needs of businesses and help them enhance their online presence and communication capabilities.
6.
What is a major characteristic of asymmetric Internet service?
Correct Answer
C. Upload speeds and download speeds are different.
Explanation
A major characteristic of asymmetric Internet service is that the upload speeds and download speeds are different. This means that the rate at which data can be uploaded to the Internet is different from the rate at which data can be downloaded from the Internet.
7.
Which three elements are required to successfully connect to the Internet?
Correct Answer(s)
A. An IP address
C. A network connection
E. Access to an Internet service provider
Explanation
To successfully connect to the Internet, three elements are required. Firstly, an IP address is needed, which is a unique identifier assigned to each device connected to the network. Secondly, a network connection is necessary to establish a physical or wireless connection to the Internet. Lastly, access to an Internet service provider is required, as they provide the infrastructure and services necessary to connect to the Internet.
8.
What term describes each router through which a packet travels when moving between source and destination networks?
Correct Answer
C. Hop
Explanation
The term that describes each router through which a packet travels when moving between source and destination networks is "hop". A hop refers to the movement of a packet from one router to another in a network. As the packet moves from the source network to the destination network, it passes through multiple routers, with each router representing a hop in the network path.
9.
What does the tracert command test?
Correct Answer
C. The network path to a destination
Explanation
The tracert command is used to test the network path to a destination. It helps identify the route taken by packets from the source to the destination, showing the IP addresses of the routers in between. This allows network administrators to troubleshoot network connectivity issues and identify any bottlenecks or problems along the way.
10.
What type of end-user connectivity requires that an ISP have a DSLAM device in their network?
Correct Answer
C. Digital subscriber line technology
Explanation
Digital Subscriber Line (DSL) technology requires an ISP to have a DSLAM (Digital Subscriber Line Access Multiplexer) device in their network. A DSLAM is responsible for connecting multiple DSL lines from end-users and aggregating the traffic onto a high-speed backbone network. This technology allows for high-speed internet access over existing copper telephone lines, making it a popular choice for residential and small business users.
11.
Why would an ISP require a CMTS device on their network?
Correct Answer
A. To connect end users using cable technology
Explanation
An ISP would require a CMTS (Cable Modem Termination System) device on their network to connect end users using cable technology. The CMTS acts as a bridge between the ISP's network and the cable modems used by the end users. It receives incoming data from the ISP's network and transmits it to the appropriate cable modems, allowing users to access the internet via cable connections. Therefore, having a CMTS device is necessary for providing internet services to end users using cable technology.
12.
Refer
to the graphic. What type of cabling is shown?
Correct Answer
D. Fiber
13.
Refer
to the graphic. What type of cabling is shown?
Correct Answer
B. UTP
Explanation
The graphic is not provided, so it is difficult to determine the exact type of cabling shown. However, the correct answer is UTP (Unshielded Twisted Pair) based on the given options. UTP is a common type of cabling used for Ethernet networks, where pairs of wires are twisted together to reduce interference. It is widely used in homes and offices for networking purposes.
14.
Which two places are most appropriate to use UTP cabling?
Correct Answer(s)
B. In a home office network
E. Inside a school building
Explanation
UTP cabling, which stands for Unshielded Twisted Pair, is most appropriate to use in a home office network and inside a school building. UTP cables are commonly used in these environments because they are cost-effective, easy to install, and provide sufficient performance for typical data transmission needs. Additionally, UTP cables are not affected by electromagnetic interference (EMI), making them suitable for areas where EMI is not an issue. However, UTP cabling may not be the best choice for connecting buildings or in a cable TV network, where longer distances and higher data rates may require the use of other types of cables.
15.
What does adherence to cabling standards ensure?
Correct Answer
D. Reliable data communications
Explanation
Adherence to cabling standards ensures reliable data communications. Following cabling standards means that the cables are installed correctly, with proper connectors, termination, and grounding. This ensures that the data signals are transmitted accurately and efficiently, minimizing errors and disruptions in communication. By adhering to these standards, organizations can ensure that their data transmissions are reliable and consistent, leading to improved network performance and overall data integrity.
16.
Refer
to the graphic. What type of cable is shown?
Correct Answer
A. Crossover
17.
What connector is used to terminate Ethernet unshielded twisted pair (UTP) cabling?
Correct Answer
D. RJ-45
Explanation
The RJ-45 connector is used to terminate Ethernet unshielded twisted pair (UTP) cabling. This connector is commonly used in networking applications to connect devices such as computers, routers, and switches to a local area network (LAN). It has eight pins and is designed to provide a reliable and secure connection for Ethernet communication. The RJ-45 connector is widely used in both residential and commercial settings for wired internet connections.
18.
Which two characteristics describe copper patch panels?
Correct Answer(s)
B. Uses RJ-45 jacks
D. Allows quick rearrangements of network connections
Explanation
Copper patch panels use RJ-45 jacks, which are specifically designed for Ethernet connections. These jacks are commonly used in local area networks (LANs) to connect devices such as computers, switches, and routers. Additionally, copper patch panels allow for quick rearrangements of network connections, making it easier to modify and reconfigure the network layout as needed. This flexibility is especially beneficial in environments where network changes are frequent, such as data centers or office spaces that frequently reorganize their network infrastructure.
19.
What are the two advantages of cable management?
Correct Answer(s)
B. Aids in isolation of cabling problems
C. Protects cables from pHysical damage
Explanation
Cable management has two main advantages. Firstly, it aids in the isolation of cabling problems. This means that if there is an issue with a specific cable, it can be easily identified and resolved without affecting the entire network. Secondly, cable management protects cables from physical damage. By organizing and securing cables properly, the risk of them being accidentally pulled, twisted, or damaged is minimized. This helps to ensure the longevity and reliability of the network infrastructure.
20.
What are the two common causes of signal degradation when using UTP cabling?
Correct Answer(s)
B. Having improper termination
E. Using low quality cables or connectors
Explanation
The two common causes of signal degradation when using UTP cabling are having improper termination and using low quality cables or connectors. Improper termination refers to not properly connecting the cables to the devices, which can result in signal loss or interference. Using low quality cables or connectors can also lead to signal degradation as they may not be able to effectively transmit the signals, resulting in loss of data or poor connectivity.
21.
What are the three commonly followed standards for constructing and installing cabling?
Correct Answer(s)
A. Pinouts
B. Cable lengths
D. Connector types
Explanation
The three commonly followed standards for constructing and installing cabling are pinouts, cable lengths, and connector types. Pinouts refer to the arrangement of pins or wires in a connector, which must be consistent for proper communication. Cable lengths are important to ensure that the cables reach their intended destinations without signal degradation. Connector types are standardized to ensure compatibility between different devices and cables. These standards help ensure reliable and efficient communication through cabling systems.