Infrastructure IV

Lisa works as an administrative assistant at a busy office. Her daily tasks include preparing reports, memos, and other important documents for distribution to colleagues and clients. Which of the following devices can Lisa use for printing physical documents?

• Printer

• Keyboard

• Mouse

• Scanner

Answer explanation

A printer is a device that is primarily used for printing physical documents. It accepts electronic data from a computer and produces a hard copy of that data on paper or other printable material. A scanner is a device used for converting physical documents or images into digital format. It captures the content of a document or image and creates a digital representation that can be stored, edited, or transmitted electronically. Scanners are not primarily used for printing physical documents. A mouse is an input device used to control the movement of a cursor or pointer on a computer screen. It allows users to interact with graphical user interfaces and perform various actions such as selecting, clicking, and dragging. Similar to the keyboard, a mouse is not primarily used for printing physical documents. A keyboard is an input device used for entering data and commands into a computer. It consists of a set of keys that correspond to letters, numbers, symbols, and various control functions. While a keyboard is an essential part of the input process, it is not primarily used for printing physical documents.

Which of the following is an example of an IP-based peripheral device?

• USB Flash Drive

• Network printer

• Bluetooth Mouse

• HDMI Monitor

Answer explanation

Explanation

A network printer is an example of an IP-based peripheral. It connects to a network, has its own IP address, and can be accessed by multiple devices on the same network. An HDMI monitor is a display device that connects to a computer via an HDMI cable. It is not an IP-based peripheral. A Bluetooth mouse connects to a computer wirelessly via Bluetooth technology. It is not an IP-based peripheral. A USB flash drive is a storage device that connects to a computer typically via a USB port. It is not an IP-based peripheral.

Which statement describes the network communication's process of packet transmission?

• Sender breaks the communications data into several small pieces, packets , before sending it to a receiver.

• Transmission packets happens only in sequence one by one over the same path.

• senders sends the entire communication data at once to the receiver.

• sender encrypts te data before sending it to the receiver.

Answer explanation

Explanation

The process of packet transmission involves breaking data down into small, manageable packets before they're sent. Network communication doesn't involve sending the entire content data at once. One large file would choke up the network and cause delays. While encrypting data can be an aspect of secure communication, it is not a fundamental part of the packet transmission process. In an ideal condition, packet transmission does not happen sequentially only, packets can take different paths from source to destination.

John is setting up his home office network and wants to connect his computer to the router using an Ethernet cable. He examines the back of his computer and notices a small rectangular Ethernet port with eight metal contacts. Based on the scenario, which type of connector is commonly used for wired Ethernet connections?

• RJ-45

• RJ-11

• USB Connector

• FireWire Connector

Answer explanation

Explanation

This is the correct answer. The RJ-45 connector is widely used for wired Ethernet connections. It has eight pins and is capable of transmitting data at high speeds. USB connectors are used for connecting various peripheral devices to a computer, such as printers and external hard drives. They are not specifically designed for Ethernet connections. FireWire connectors, also known as IEEE 1394 connectors, are used for high-speed data transfer between devices like digital cameras and external hard drives. They are not commonly used for Ethernet connections. This type of connector is commonly used for telephone connections. It has four or six pins and is not suitable for Ethernet connections.

John is setting up a new computer system at his home office. He wants to connect his computer to the internet and use a wired network connection for stability and speed. Which of the following network connections is most suitable for this situation? (Select TWO).

• DSL

• NFC

• Wi-Fi

• Cable

Answer explanation

Cable connections utilize coaxial cables, typically provided by cable service providers. They offer high-speed internet access and are commonly used for home internet connections. DSL (Digital Subscriber Line) uses telephone lines to transmit digital data. It provides internet connectivity through existing telephone infrastructure and offers reliable speeds for residential and small business users. Near Field Communication (NFC) is designed for short-range data transfer, and would not be suitable for this scenario. Wireless connections, such as Wi-Fi, utilize radio waves to transmit data over the air. They offer convenient and flexible connectivity, allowing devices to connect to the internet without the need for physical cables. This is a wireless option and not a wired one.

Which of these refers to a network that extends over a large geographical area?

• LAN

• HTTP

• DNS

• WAN

Answer explanation

Explanation

A Wide Area Network (WAN) is a network that extends over a broad area, which can even span across cities, regions, or countries. DNS (Domain Name System) is the naming protocol for devices connected to the internet or a private network. It doesn't pertain to the size or coverage area of a network. HTTP (HyperText Transfer Protocol) is a protocol used for transmitting hypermedia documents, such as HTML. It has no connection to the geographical spread of a network. A Local Area Network (LAN) is a network that covers a relatively small area, like a home, office, or a group of nearby buildings.

Which type of NIC provides network connectivity through physical cables?

• Wired NIC

• Wireless NIC

• On-Board-Nic

• Add-on card Nic

Answer explanation

A wired NIC (Network Interface Card) uses physical cables, such as Ethernet cables, to establish network connectivity. It enables a computer to connect to a network using wired connections. An on-board NIC refers to a network interface that is integrated into the motherboard of a computer. It can be either wired or wireless, depending on the specific implementation. A wireless NIC, also known as a Wi-Fi adapter, provides network connectivity without the need for physical cables. It allows devices to connect to wireless networks. An add-on card NIC refers to a separate network interface card that is installed in a computer's expansion slot to provide network connectivity. It can be either wired or wireless.

John recently purchased a new monitor for his computer. He wants to connect it to his computer to enjoy high-quality visuals. However, he is unsure which connector he should use to establish the connection. The monitor has multiple input options available. What is the most efficient and reliable method to determine the correct connector for his computer and monitor?

• Use a VGA connector as it is a commonly used connector for display connections.

• Ask a friend who is knowledgeable about computer hardware to help him identify the correct connector.

• Refer to the computer's user manual or manufacturer website for info on supported display connectors

• Look at the monitor's input options and the available output options on his computer

Answer explanation

Examining the available input options on the display and the computer will quickly allow John to determine the connector he can use. This approach helps ensure a compatible connection between the two devices. VGA connectors are commonly used for monitor connections. However, it may not be the correct connector for John's specific computer and display. While seeking help is an option, it may not be the most reliable or efficient method. Referring to the computer's user manual or manufacturer's website for info on supported display connectors but won't provide him with information about the specific display options on his monitor. It will also take more time than looking at the computer and monitor to see what options are available.

Which of the following is NOT a protocol used for sending email?

• HTTP/S

• IMAP

• SMTP

• POP3

Answer explanation

Explanation

HTTP stands for Hypertext Transfer Protocol, and HTTPS is a secure variant of it. They are used for transmitting hypertext over the internet, commonly associated with web browsers and not used for sending emails. POP (Post Office Protocol) is a protocol used by local email clients to retrieve email from a remote server. IMAP (Internet Message Access Protocol) is a protocol used by email clients to retrieve messages from a mail server. SMTP (Simple Mail Transfer Protocol) is a protocol used for sending e-mails over the internet.

Which of the following wireless communication protocols is the oldest?

• 802.11B

• 802.11N

• 802.11G

• 802.11ac

Answer explanation

Explanation

The 802.11b standard is the oldest of the provided choices, having been released in 1999. It is thus the most antiquated. 802.11n, standardized in 2009. It is not the oldest standard of the available options. The 802.11g standard, approved in 2003, succeeded 802.11b and predates 802.11n and 802.11ac. Therefore, it doesn't qualify as the oldest. This standard is more recent than 802.11b, it came out in 2013.