ICT Computing Essentials - Lesson 4 Review B

Help desk technicians spend their time on the phone, helping resolve issues for customers. What type of wireless network device forms a personal area network (PAN) so the technicians can keep their hands free while helping customers?

• Satellite

• Bluetooth

• Wi-fi (802.11)

• Broadband

Emily is visiting the library with her laptop. She is able to access the internet using her device on the library's wi-fi after inputting her library card number and PIN. What type of networking standard is Emily using for wireless internet access?

• Bluetooth

• Twisted pair

• 802.11

• 4G

Dan finished a meeting early with a client and wants to catch up on his e-mails from work. Dan notices that the local coffee shop has free wi-fi access. What network hardware is allowing Dan to connect his computer to the wi-fi network?

• Router

• Switch

• Gateway

• Access Point

Timothy is working on his home computer, and needs to connect several peripherals, including his mobile phone, camera, and printer. He connects a device to one of his USB ports, and connects the peripherals to the device. What kind of device is Timothy using?

• Hub

• Router

• Gateway

• Modem

A common network protocol was created for users to be able to easily access a company's unique IP address by remembering the text-based URL address instead of a complicated sequence of numbers. Which protocol allows users to find a Web site by remembering only the name?

• TCP/IP

• POP

• HTTP

• DNS

In the client/server model, two computers must communicate with each other to exchange information. Which protocol controls how data is transmitted across the network?

• DCHP

• TCP/IP

• HTTP

• SMTP

Which layer of the OSI Reference Model is the first layer to receive a message from another device?

• Transport layer

• Data link layer

• Application layer

• Physical layer

What is the difference between Internet Message Access Protocol (IMAP) and Post Office Protocol (POP) for incoming e-mails?

• IMAP is used for sending outgoing e-mail, while POP is used for receiving incoming e-mail.

• IMAP and POP are both e-mail protocols for incoming e-mail.

• IMAP downloads all the messages, while POP stores e-mail messages on the e-mail server.

• IMAP stores e-mail messages on the e-mail server, while POP downloads the messages from the e-mail server.

Adam is at work on the corporate LAN. His coworker Silvia is across the country from Adam. She needs to access files stored on Adam's computer as well as other computers on the LAN, but she is not part of the LAN. Which IP address does Silvia need to access the files located on the network?

• The LAN router's public IP address.

• She can not access the files.

• Adam's computer's private IP address.

• The LAN router's private IP address.

Nisa and her family are tech-savvy when it comes to computers. They all print documents on their home printer, from their own phones and mobile devices. The printer is using Bluetooth wireless technology. Nisa's friend is visiting, and wants to print some concert tickets from her own phone. When Nisa's friend tries to use the Bluetooth wireless technology, an error pops-up with no communication. Why might this be happening to Nisa's friend?

• Nisa's friend doesn't have the latest phone, which means she doesn't have the technology to print items via Bluetooth.

• All the devices in Nisa's family are connected to a network which assigns private IP addresses. Nisa's friend is not connected to the network.

• Nisa's friend is not tech-savvy and doesn't know much about computers.

• Nisa's friend doesn't know the public IP address of her phone.