Computer Networking Quiz (C)

Question 1

The correct answer is: c: Both wired and wireless connections

Networks can use both wired (e.g. Ethernet) and wireless (e.g. Wi-Fi) connections to transmit data.

Question 2

The correct answer is: a: A secure and private connection over a public, business, or home network.

Option B is incorrect as a VPN does not provide a direct connection. An internet connection over a public, business, or home network is required to connect to a VPN.

Option C is incorrect as a VPN offers no such guarantee.

Option D is incorrect as that is a public network.

Question 3

The correct answer is: a: WAN

The internet is the largest WAN as it is a wide network of computers and servers that are connected together using routers and switches on a global scale.

Question 4

The correct answer is: d: PAN (Personal Area Network)

Option B is incorrect as that is the largest type of network.

Option A is incorrect as that is the second largest type of network.

Option C is incorrect as a LAN is larger than a PAN.

Question 5

The correct answer is: c: Nearby devices within a limited area, such as a school.

Option A is incorrect as a LAN is not limited to two devices.

Option B is incorrect as that is a WAN.

Option D is incorrect as that is a PAN.

Question 6

The correct answer is: a: To provide a much larger address space for the internet.

Option B is incorrect as IPv6 does not provide any extra security to IPv4.

Option C is incorrect as IPv6 does not provide a higher data transfer rate for any data transmission mediums.

Option D is incorrect as IPv6 was not designed to allow customers to do this.

Question 7

The correct answer is: d: 10 Gb/s

Question 8

The correct answer is: c: Microwaves

Microwaves interfere with the Wi-Fi connection as microwaves release radiation waves in one direction and Wi-Fi releases waves in all directions. Microwaves always interfere with Wi-Fi signals when they are running and cause a slower internet connection.

Option B is incorrect as even though using a weak Wi-Fi password will increase the risks of unauthorised use of a wireless network, it will not interfere with the Wi-Fi signals.

Options A and B are incorrect as these will never interfere with Wi-Fi signals.

Question 9

The correct answer is: c: 503

Option A is incorrect as 403 means that access to the requested page is forbidden.

Option B is incorrect as 404 means that the requested page cannot be found.

Option D is incorrect as 511 means that the client needs to authenticate in order to gain network access.

Question 10

The correct answer is: a: If one computer crashes or malfunctions, it will not disrupt the whole system.

Option B is incorrect as peer-to-peer communication is not more secure than central methods of file sharing. In fact, it is less secure as users can share viruses and malware more easily since they don't have to maintain a central server.

Option C is incorrect as peer-to-peer communication does not use a central server. That is a disadvantage of central communication.

Option D is incorrect as it is not any easier to backup data than central methods of file sharing.

Question 11

The correct answer is: b: Updating information between two or more devices so that it remains identical on every device.

Option D is incorrect as that is multicasting.

Question 12

The correct answer is: c: It requires a central network device to connect the nodes together.

A ring topology does not require a central network device to connect the nodes together.

Options A, B, and D are all true statements.

Question 13

The correct answer is: b: An internet-layer protocol

Question 14

The correct answer is: a: Wireless layer

Options B, C, and D are all examples of relevant OSI model layers.

Question 15

The correct answer is: d: HTTPS

Question 16

The correct answer is: b: False

IPv6 does not use subnet masks. Instead, it has a prefix-length. The prefix-length defines how many bits of the address are available in the network.

Question 17

The correct answer is: a: A hub

Hubs are much more basic than network switches and routers as they only transmit data to connected devices, which connect through Ethernet ports, and have no routing tables, IP addresses, or connections to sources other than local computers, which basically means no internet access.

Question 18

The correct answer is: c: Hardware identification number that allows each device on a network to be uniquely identified.

Option B is incorrect as that is an IP address.

Option A is incorrect as that is an SSID.

Option D is incorrect as that is a port number.

Question 19

The correct answer is: a: TCP works by two computers beginning to connect by a handshake, whilst in UDP communications, one computer can begin transferring data to the other computer and it does not go through this process.

Question 20

The correct answer is: d: They cannot connect separate networks together.

Option B is incorrect as they are used to extend the coverage area of a wireless network. That is the main role of them.

Option C is incorrect as they can handle both analogue and digital data.

Option A is incorrect as they are easy to set up and install.

Question 21

The correct answer is: b: Bridge and a router

A brouter, also known as a bridging router, is a piece of networking hardware that works as both a bridge and a router by routing data to nodes in a network and connecting two separate networks together.

Question 22

The correct answer is: b: 1 year

Domain names must be registered for a minimum of 1 year before they expire.

Question 23

The correct answer is: a: Hosted services delivered over the internet are used to store, manage, and process data rather than personal computers or local servers.

Option C is incorrect as cloud-based software does not usually have to be installed on individual computers to access cloud computing services.

Option D is incorrect as cloud computing offers no such guarantee.

Question 24

The correct answer is: d: ICANN

Question 25

The correct answer is: b: An internet service provider (ISP)

Options A, C, and D are incorrect as these do not provide leased lines.

Question 26

The correct answer is: a: True

A bus topology, also known as a line topology, is an older type of network topology where all nodes of the network are directly connected to a central cable, known as a backbone or a bus.

Question 27

The correct answer is: d: Is not connected to a network.

A computer that is used on its own without requiring a connection to a network is known as a standalone computer as it "stands by itself", as suggested in the word.

Question 28

The correct answer is: a: A printer

There are times when DHCP should not be used and static IP addresses should be considered. It should not be used for devices that do not move around and need frequent access. Examples include printers. Assigning a printer with a changing IP address would be inconvenient as it would cause every device that is connected to the printer to have to update its settings on a regular basis in order to connect to the printer.

Question 29

The correct answer is: b: The URL

Option A is incorrect as the domain name is the unique address of a website that can be seen in the URL field of the web browser. Domain names have a custom name. (e.g. computerhelp4all.com is the domain name of this website). The domain name does not uniquely identify a file.

Options B and D are incorrect as MAC addresses and SSIDs are never used to identify files on the internet.

Question 30

The correct answer is: a: 99.99%

Ideally, a web server should have 99.99% uptime, since downtime, even of only a few hours can have a negative impact on a business as they may be unable to access important information and it can cause loss of revenue, especially if the business sells products online.

Question 31

The correct answer is: c: RTP

Option B is incorrect as that stands for Session Initiation Protocol and is used to initiate, maintain, and terminate real-time communication sessions with network devices.

Option D is incorrect as that stands for Real-Time Streaming Protocol and is used for controlling the streaming of media, not delivering live media over the internet.

Option A is incorrect as that stands for Voice over Internet Protocol and is a technology used for the delivery of voice communications over the internet

Question 32

The correct answer is: b: False

Tree topologies combine the features of star and bus topologies.

Question 33

The correct answer is: a: SIP

Question 34

The correct answer is: a: True

HTTP allows users to communicate with web resources, such as HTML pages, CSS sheets, images, and video files by the use of hypertext messages from web browsers to servers

Question 35

The correct answer is: a: Bandwidth

Bandwidth is more important because video data is large and a high bandwidth is required. Latency is not as important because data can be buffered, so the speed of data reaching the destination is less important.

Question 36

The correct answer is: c: Bits per second

Question 37

The correct answer is: b: Because it is designed to use less power and be less expensive to set up than Wi-Fi.

Options A and C are incorrect as Bluetooth and Wi-Fi are wireless technologies that do not use any wires or cables to transmit data.

Option D is incorrect as Bluetooth does not require an internet connection in order for devices to connect.

Question 38

The correct answer is: a: It is an easy method of sharing data.

Option B is incorrect as managing a large network can be complicated.

Option C is incorrect as there is a risk of networks getting hacked into.

Option D is incorrect as viruses and malware can spread over a network. It is the most common way that they spread.

Question 39

The correct answer is: a: True

HTTPS will help with SEO as it is a minor ranking factor for search engines, such as Google.

Question 40

The correct answer is: c: Digital Subscriber Line

DSL is the slowest type of broadband because it uses copper wires to transmit data.

Option D is incorrect as that is the fastest type of broadband.

Option C is incorrect as that is the second fastest type of broadband.