1.
Which of the following uses light for transmitting data?
Correct Answer
A. Optical Fiber
Explanation
Optical Fiber uses light for transmitting data. It is a type of cable made of glass or plastic that uses light signals to transmit data. The data is converted into light pulses and sent through the fiber optic cable. This method allows for faster and more reliable data transmission compared to traditional copper cables, which use electrical signals. Optical fiber is commonly used in telecommunications, internet connections, and networking applications.
2.
A statewide network would be called a LAN.
Correct Answer
B. False
Explanation
A statewide network would not be called a LAN because a LAN (Local Area Network) is a network that covers a small area such as a home, office, or building. A statewide network, on the other hand, covers an entire state. Therefore, a statewide network would be called a WAN (Wide Area Network) instead.
3.
A switch is more intelligent than a hub?
Correct Answer
A. True
Explanation
A switch is more intelligent than a hub because a switch can make decisions based on the destination MAC address to send data only to the intended recipient, while a hub simply broadcasts data to all connected devices. This allows a switch to efficiently manage network traffic and improve network performance, whereas a hub can cause network congestion and slower data transmission. Additionally, a switch can support full-duplex communication, allowing data to be sent and received simultaneously, whereas a hub only supports half-duplex communication.
4.
Which of the following cables have the highest bandwidth?
Correct Answer
C. Optical Fiber
Explanation
Optical Fiber has the highest bandwidth among the given options. This is because optical fiber uses light to transmit data, allowing for much higher data transfer rates compared to other cables. Twisted Pair and Co-axial cables use electrical signals, which have limitations in terms of bandwidth. Copper cables also have lower bandwidth compared to optical fiber. Therefore, optical fiber is the correct answer as it provides the highest bandwidth.
5.
Which of the following is used for a small building or a campus?
Correct Answer
B. LAN
Explanation
A LAN (Local Area Network) is used for a small building or a campus. It is a network that connects computers and devices within a limited area, such as a home, office, or school. LANs are typically faster and more secure than wide area networks (WANs) because they are confined to a smaller geographic area. This makes LANs ideal for small-scale networking needs, providing efficient communication and resource sharing among devices in a localized environment.
6.
Which of the following is used to network computers in different cities and/or countries?
Correct Answer
A. WAN
Explanation
WAN stands for Wide Area Network, which is used to connect computers in different cities and/or countries. It covers a large geographical area and utilizes telecommunication networks to establish connections between remote locations. WAN allows for long-distance communication and enables organizations to connect their branches or offices in different locations, facilitating data sharing and communication between them.
7.
In Bus topology, all computers connect to one central cable line?
Correct Answer
A. True
Explanation
In a bus topology, all computers are connected to one central cable line called the bus. This central cable acts as a communication medium through which data is transmitted. Each computer on the network can send data to all other computers by broadcasting it on the bus. Therefore, the statement "In Bus topology, all computers connect to one central cable line" is true.
8.
Which of the following topologies directly connects each computer to every other computer in the network?
Correct Answer
B. Fully Connected Mesh
Explanation
A fully connected mesh topology directly connects each computer to every other computer in the network. This means that each computer has a dedicated point-to-point link to every other computer, allowing for direct communication between any two computers in the network. This type of topology provides high reliability and fault tolerance, as there are multiple paths available for data transmission. However, it can be expensive and complex to implement, especially as the number of computers in the network increases.
9.
Which of the following is needed for computers on a LAN to access the internet?
Correct Answer
C. Router
Explanation
A router is needed for computers on a LAN to access the internet. A router is a networking device that connects multiple networks together, such as a LAN and the internet. It acts as a gateway between the LAN and the internet, forwarding data packets between the two networks. Unlike a hub or switch, which only provide connectivity within a local network, a router can direct traffic to the appropriate destination on the internet. Therefore, a router is essential for enabling internet access for computers on a LAN.
10.
Which of the following protocols is used to transfer files from one host to another over a TCP-based network?
Correct Answer
B. FTP
Explanation
FTP (File Transfer Protocol) is specifically designed for transferring files over a TCP-based network, such as the internet or an intranet. HTTP (HyperText Transfer Protocol) is used for transmitting web pages, SMTP (Simple Mail Transfer Protocol) is used for sending emails, and SNMP (Simple Network Management Protocol) is used for network management and monitoring. FTP is the correct protocol for file transfers.
11.
A WAN is smaller and more secure than a LAN.
Correct Answer
B. False
Explanation
This statement is false. A WAN (Wide Area Network) is actually larger and less secure than a LAN (Local Area Network). A WAN covers a larger geographical area, such as multiple buildings or cities, and is often connected through public networks like the internet. Due to its larger scale and reliance on public networks, WANs are generally considered to be less secure than LANs, which are limited to a single location and can be more easily controlled and protected.
12.
On a Client/Server Network, the server controls the network and clients.
Correct Answer
A. True
Explanation
In a Client/Server Network, the server is responsible for managing and controlling the network and its clients. The server acts as the central point of control, handling tasks such as authentication, data storage, and resource allocation. It receives requests from clients and responds to them accordingly. Clients, on the other hand, rely on the server for accessing shared resources and services. Therefore, the statement that the server controls the network and clients is true in a Client/Server Network.
13.
The topology that is formed with a closed-loop network of computers is called
Correct Answer
C. A ring topology
Explanation
A ring topology is formed with a closed-loop network of computers where each computer is connected to two other computers, creating a circular network. In this topology, data travels in one direction around the ring, passing through each computer until it reaches its destination. This type of topology is commonly used in token ring networks where a token is passed from one computer to another to control access to the network.
14.
The most common type of network cable for a LAN is
Correct Answer
C. Ethernet Twisted Pair Cable
Explanation
The most common type of network cable for a LAN is the Ethernet Twisted Pair Cable. This type of cable is widely used for local area networks (LANs) as it provides a reliable and high-speed connection. Ethernet Twisted Pair Cables are made up of pairs of twisted copper wires, which help to reduce interference and improve signal quality. They are also relatively inexpensive and easy to install, making them a popular choice for both residential and commercial networking applications. HDMI and AUX cables are typically used for audio and video connections, while Copper Cable is a general term that can refer to various types of cables, including Ethernet cables.
15.
The minimum number of computers needed to create a network is
Correct Answer
B. Two
Explanation
In order to create a network, at least two computers are required. This is because a network is a collection of interconnected devices that can communicate and share resources with each other. With only one computer, there would be no other device to connect to and establish a network. Therefore, a minimum of two computers is necessary to create a network.
16.
P2P is short for what type of newtork
Correct Answer
D. Peer To Peer Network
Explanation
The correct answer is Peer To Peer Network. P2P stands for Peer To Peer, which refers to a type of network where computers or devices are connected directly to each other without the need for a central server. In a P2P network, each device can act as both a client and a server, allowing users to share resources and files directly with each other. This type of network is commonly used for file sharing, online gaming, and communication applications.
17.
The ________ is the largest WAN.
Correct Answer
Internet
Explanation
The Internet is the largest WAN because it connects millions of devices and networks worldwide, allowing for global communication and information exchange. It spans across different countries and continents, providing a vast network infrastructure that enables individuals and organizations to connect and access resources from anywhere in the world. Its extensive reach and scale make it the largest wide area network, facilitating the transmission of data, voice, and multimedia across vast distances.
18.
A _______ is a computer that performs a dedicated function for clients on a network.
Correct Answer
server
Explanation
A server is a computer that performs a dedicated function for clients on a network. It acts as a central hub, responding to requests from clients and delivering the required data or services. Servers are designed to handle multiple client connections simultaneously and provide resources such as file storage, application hosting, and network management. They play a crucial role in managing and distributing resources efficiently within a network, ensuring smooth communication and collaboration between clients.
19.
The rules of how computers communicate, send and receive data on a network are known as the
Correct Answer
D. Network Protocols
Explanation
Network protocols are a set of rules and guidelines that govern how computers communicate, send, and receive data on a network. These protocols define the format and structure of data packets, as well as the procedures for error detection and correction, data compression, encryption, and authentication. They ensure that different devices and software applications can understand and interact with each other effectively, enabling seamless communication and data transfer across the network.
20.
A P2P network allows users to
Correct Answer
B. Directly share files.
Explanation
A P2P network, or peer-to-peer network, enables users to directly share files with each other. Unlike traditional client-server networks where files are stored on a central server and accessed by clients, in a P2P network, files are distributed across multiple devices and can be shared directly between users without the need for a central authority. This allows for faster and more efficient file sharing as it eliminates the bottleneck of a single server.
21.
On a Peer-to-Peer network, all machines are equal, and each may send or receive data.
Correct Answer
A. True
Explanation
In a Peer-to-Peer network, all machines are equal, meaning that there is no central server or hierarchy. Each machine has the ability to both send and receive data, allowing for a decentralized and distributed system where all machines can interact with each other directly. This promotes efficient communication and collaboration among the machines on the network. Therefore, the statement "On a Peer-to-Peer network, all machines are equal, and each may send or receive data" is true.
22.
LAN is short for?
Correct Answer
Local Area Network
Explanation
LAN is an acronym for Local Area Network. A LAN is a computer network that connects devices within a limited area, such as a home, office, or building. It allows for the sharing of resources, such as files, printers, and internet connections, among connected devices. LANs are typically faster and more secure than wide area networks (WANs) as they cover a smaller geographic area.
23.
WAN is short for?
Correct Answer
Wide Area Network
Explanation
WAN stands for Wide Area Network, which refers to a network that spans a large geographical area. It is used to connect multiple local area networks (LANs) together, allowing for communication and data transfer across different locations. WANs are commonly used by organizations to connect their branch offices, data centers, and remote users. This enables them to share resources, access centralized data, and collaborate effectively.
24.
Many companies have private networks that look and act like the internet but are only available to their employees. These networks are called:
Correct Answer
A. An intranet.
Explanation
An intranet is a private network used within an organization that uses internet technologies (such as web browsers and servers) to share information, operational systems, or computing services among employees. It is restricted to authorized users and acts similarly to the internet but is only accessible within the organization. An ISP (Internet Service Provider) provides internet access, while a firewall is a security device.
25.
If a company decided to allow outsiders, like customers, access to an area of their intranet, that area of the network is called?
Correct Answer
D. An extranet.
Explanation
If a company decides to grant access to outsiders, like customers, to a specific area of their internal network, this area is referred to as an extranet. An extranet allows external users to access certain parts of the company's intranet, typically through a secure connection. It provides a controlled and limited level of access to external parties while maintaining the security and privacy of the internal network.
26.
A network allows computers to share peripheral devices like printers and fax machines which save the company money on buying equipment.
Correct Answer
A. True
Explanation
A network allows computers to connect and share resources such as printers and fax machines. This sharing of peripheral devices eliminates the need for each computer to have its own individual equipment, resulting in cost savings for the company. Therefore, the statement is true.
27.
Having a network makes it harder to manage a group of computers.
Correct Answer
B. False
Explanation
Having a network actually makes it easier to manage a group of computers. With a network, administrators can centrally manage and control various aspects of the computers, such as software updates, security settings, and user permissions. This eliminates the need to individually manage each computer, saving time and effort. Additionally, networks allow for easy file sharing and collaboration among users. Therefore, the statement that having a network makes it harder to manage a group of computers is false.
28.
A computer Network is controlled by its
Correct Answer
B. (NOS) Network Operating System.
Explanation
A computer network is controlled by its Network Operating System (NOS). The NOS is responsible for managing and coordinating the network's resources, such as file sharing, printer access, and security protocols. It allows multiple devices to communicate and share information within the network. The NOS also handles tasks like routing data packets, managing network connections, and ensuring efficient data transmission. Without a NOS, the network would not be able to function properly and effectively.
29.
The communication rate over a network is measure by the number of bits that can be transmitted per second, known as
Correct Answer
C. Bandwith
Explanation
Bandwidth refers to the amount of data that can be transmitted over a network in a given amount of time. It is measured in bits per second (bps) and determines the speed or capacity of the network. The higher the bandwidth, the more data can be transmitted simultaneously, resulting in faster and more efficient communication.
30.
A piece of hardware that makes it possible for a computer to send and receive data from another computer.
Correct Answer
A. (NIC) Network Interface Card
Explanation
A Network Interface Card (NIC) is a piece of hardware that allows a computer to connect to a network and send or receive data from other computers. It acts as an interface between the computer and the network, enabling communication and data transfer. Without a NIC, a computer would not be able to connect to a network and exchange information with other devices.
31.
802.11
Correct Answer
D. Standard for wireless networking.
Explanation
802.11 refers to a set of standards for wireless networking, specifying protocols for implementing wireless local area networks (LANs). It encompasses various technologies such as Wi-Fi, defining how devices communicate over wireless networks, ensuring compatibility and interoperability among different wireless devices and networks.
32.
What is a switch?
Correct Answer
A. A type of hub that controls and minimizes the traffic on a network.
Explanation
A switch is a type of hub that controls and minimizes the traffic on a network. Unlike a hub, which broadcasts data to all connected devices, a switch intelligently directs data only to the intended recipient, reducing congestion and improving network performance. Switches operate at the data link layer of the OSI model and use MAC addresses to determine where to send data packets. They are commonly used in local area networks (LANs) to connect multiple devices, such as computers, printers, and servers, allowing them to communicate with each other efficiently.
33.
Before information is sent over the internet, it is broken down into smaller bits of information called
Correct Answer
A. Packages.
Explanation
Information sent over the internet is divided into smaller units called packages. These packages contain the data being transmitted and are used to ensure that the information reaches its destination accurately and efficiently. Each package contains a portion of the data along with necessary addressing and routing information. By breaking down the information into packages, it becomes easier to manage and transmit data across different networks. Therefore, the correct answer is "packages".
34.
This refers to the layout of devices that are connected to a computer network.
Correct Answer
B. Network Topology
Explanation
Network topology refers to the layout or structure of devices that are connected to a computer network. It defines how the devices are interconnected and the pattern of communication between them. Different types of network topologies include bus, star, ring, mesh, and hybrid. Understanding the network topology is essential for network administrators to ensure efficient data transmission, identify potential bottlenecks, and troubleshoot network issues. Therefore, "Network Topology" is the correct answer as it accurately describes the concept of the layout of devices in a computer network.
35.
The topology of the internet is difficult to define due to its size and the large geographic area it covers.
Correct Answer
A. True
Explanation
The statement is true because the internet is a vast network that spans across the globe, connecting millions of devices and networks. Due to its immense size and the fact that it is constantly evolving and expanding, it is challenging to precisely define its exact topology. The internet is made up of numerous interconnected networks, routers, and nodes, forming a complex and decentralized structure. Therefore, it is accurate to say that the topology of the internet is difficult to define due to its extensive reach and geographical coverage.
36.
All network topologies have a common goal: prevent users from sharing resources and data.
Correct Answer
B. False
Explanation
The given statement is false. The common goal of network topologies is actually to facilitate the sharing of resources and data among users. Network topologies define the way devices are connected in a network, and they can be designed to enable efficient communication and resource sharing. Examples of network topologies include bus, star, ring, and mesh. In these topologies, devices are interconnected to allow for the sharing of resources and data, enhancing collaboration and productivity among users.
37.
A VPN can be considered a type of WAN.
Correct Answer
A. True
Explanation
A VPN (Virtual Private Network) can be considered a type of WAN (Wide Area Network) because it allows users to connect to a private network over a public network, such as the internet. VPNs create a secure and encrypted connection, enabling remote users to access resources on a private network as if they were directly connected to it. WANs, on the other hand, are networks that span large geographical areas and connect multiple local area networks (LANs) together. Since a VPN can connect users to a private network over a wide area, it can be classified as a type of WAN.
38.
In a Partially Connected Mesh LAN
Correct Answer
C. Each device is connected to one or more other devices but not all.
Explanation
In a partially connected mesh LAN, each device is connected to one or more other devices but not all. This means that while there are connections between devices, not every device is directly connected to every other device in the network. Some devices may have multiple connections, while others may have only one. This type of network topology allows for redundancy and fault tolerance, as there are multiple paths for data to travel between devices.
39.
Wi-Fi is an insecure form of communication.
Correct Answer
A. True, and users should only connect to known and trusted signals.
Explanation
Wi-Fi is an insecure form of communication because it transmits data over the airwaves, making it susceptible to interception by hackers. Therefore, users should only connect to known and trusted signals to minimize the risk of their personal information being compromised.