Hardware Exam 3

Which device functions as a bridge between the wired and wireless portions of a network?

Wireless Access Point

Your company has recently been hired to install a smart security system for a large office building. The system will include security cameras, voicecontrolled lights, smart locks, and smart thermostats. Some of the security cameras will be installed outdoors throughout the parking lot. Which wireless IoT protocol should your company use for the installation?

Zigbee because it is always encrypted

Besides Command Prompt, what's another Windows utility that can be sued to run ipconfig?

PowerShell

What are the main types of coaxial cable? (choose 2)

RG-6 RG-59

If the owner of the computer and printer wanted to make that printer available to other computers on the network, how would that be accomplished?

Share the printer

While visiting a coffee shop, you see a poster advertising a concert for a music group you'd love to see. You notice there's an NFC tag at the bottom with additional information about the concert. Which of the following devices would likely be able to read the NFC tag?

Smartphone

Which of these connection technologies can you use to connect a device to your home LAN? (choose 2)

WiFi, Ethernet

An APIPA is an automatic private IP address. Which of these other IP addresses is private? (choose 2)

10.173.169.2 172.21.191.9

You are configuring email on a customer's computer. Which port should you configure for pop.companymail.com? For smtp.companymail.com?

110, 25

What's the maximum amount of power provided by a PoE switch?

25.5 W

You're setting up a secure email server on your local network that you want clients to be able to access from the Internet using IMAP4 and SMTP. Which ports should you open in your firewall?

587 and 993

Why are some cases designed with a soft, inner lining, and a hard, outer shell?

Better shock absorption than single later cases

Which of these connection technologies might your ISP use to connect your home LAN to the internet? (choose 3)

DSL, Fiber, Cable

Which of these would likely cause a power button to stick

Damage from a drop or fall Debris in the opening around the button

Which Windows utility can you use to access the Network and Sharing center?

Device Manager

The address cengage.com identifies a specific network, and is called a...

Domain Name

You have just finished installing a network adapter and booted up the system, installing the drivers. You open File Explorer on a remote computer and don't see the computer on which you installed the new NIC. What is the first thing you check? The second thing?

Is the computer using dynamic or static IP addressing? Do the lights on the adapter indicate it's functioning correctly?

Which of the following devices is mote likely to be paired with a laptop via Bluetooth

Keyboard

Which encryption protocols might be used to secure a VPN connection? Choose all that apply.

L2TP PPTP IPsec

What component inside the client desktop computer communicates directly with the SOHO router?

Network Card

If Melanie's computer were a Linux system, which command would you use to test the computer's ability to communicate with Google's server?

Ping 8.8.8.8

Which of these devices adds power to an ethernet cable?

PoE injector

Which wireless traffic management technique sends a specified kind of traffic from the Internet to a particular computer on the private network?

Port forwarding

You're trying to cast a video presentation from your tablet to a projector for a training session with some new hires. Although you tested it successfully yesterday, today the connection is not cooperating. You've closed apps you're not using, and you've checked that the projector and the tablet are working otherwise. Of the following troubleshooting steps, which should you try first? Second?

Restart the projector Restart the tablet

What protocol can be used to secure HTTP?

SSL | TLS

FTP is not a secure protocol, What protocol can be used to make FTP safer?

SSL/TLS

How many layers are in the OSI model?

Seven

Your SOHO router has failed and you have installed a new router. The old router's static IP address on the network is 192.168.0.1. The new router has a static IP address of 10.0.0.1. You go to a computer to configure the new router and enter 10.0.0.1 in the browser address box. The router does not respond. You open a command prompt window and try to ping the router, which does not work. Next, you verify that the router has connectivity and you see that its local connection light is blinking, indicating connectivity. What is the most likely problem and its best solution?

The computer and the router are not in the same subnet. Release and renew the IP address of the computer.

What information can be determined from a device's MAC address?

The device's manufacturer

What does an SSID tell you?

The name of the wireless network

What device on a small business network could be used to broadcast the network's WiFi signal?

WAP

Which of the following are valid IPv6 addresses? Select all that apply.

fe80::64d2:bd2e:fa62:b911 ::1

Which of these commands would give you the most relevant and efficient output if you wanted to know which IP address is associated with the web server at www. google.com?

nslookup www.google.com

You run the ipconfig command on your computer, and it reports an IP address of 169.254.75.10 on the Ethernet interface. Which device assigned this IP address to the interface?

the local computer

What is a small MAN called?

CAN

Which of the following tools can be used to determine if a network cable is good? Choose all that apply.

Cable tester Crimper Network multimeter

Which of these cables supports Gigabit Ethernet?

CatSe Cat6

Which of these cables supports fast ethernet?

CatSe Cat6 Cat5

Which of these wireless technologies typically reaches across the farthest distance?

Cellular

You're at the store to buy a car charger for your dad's iPhone. There are several options with many different types of connectors. Which of these connectors should you choose?

LIghtning

A friend of yours is having trouble getting good Internet service. He says his house is too remote for cable TV—he doesn't even have a telephone line to his house. He's also really frustrated with satellite service because cloudy skies or storms often disrupt the signal. You ask him what provider he uses for his cell phone. He says he has Verizon for his cell, which gets a good signal at his house. What Internet service will you recommend he look in to for his home network?

LTE installed internet

A hub transmits all incoming messages to all of its ports except the port where the messages came in. A switch usually sends messages only to the destination computer. What information does a switch collect from messages crossing its interfaces so it knows where to send data in future transmissions?

MAC address

What are the main types of fiber-optic cable? (choose 2)

MMF SMF

The laptop's IP address is a private address. However, the router uses a public IP address to communicate on the internet. What technique allows the router to communicate publicly on behalf of the computer on the private LAN?

NAT

What function does a DNS server perform?

Name Resolution

What function does a DNS server perform?

Name resolution

Which of these devices can be connected using a straight-through cable?

PC to Switch Switch to Router

Your boss asks you to transmit a small file that includes sensitive personnel data to a server on the network. The server is running a Telnet server and an FTPS server. Why is it not a good idea to use Telnet to reach the remote computer?

Telnet transmissions are not encrypted.

After the computer's DNS cache is cleared, where will it most likely look to resolve the domain name the next time you enter cengage.com in your browser?

The ISP's DNS server

After the computers DNS cache is cleared, where will it most likely look to resolve the Domain name the next time you enter cengage.com in your browser?

The ISP's DNS server

You've just received a call from Human Resources asking for assistance with a problem. One of your company's employees, Renee, has recently undergone extensive surgery and will be homebound for 3-5 months. She plans on working from home and needs a solution to enable frequent and extended access to the company network's resources. Which WAN technology will you need to configure for Renee and which tool will you use to configure it?

VPN using the Network and Sharing Center

You have just installed a SOHO router in a customer's home and the owner has called to say his son is complaining that Internet gaming is too slow. His son is using a wireless laptop. Which possibilities should you consider to speed up the son's gaming experience? Select all that apply.

Verify that the wireless connection is using the fastest wireless standard the router supports. Suggest the son use a wired Gigabit Ethernet connection to the network. Enable QoS for the gaming applications on the router and on the son's computer.

Which 802.11 wireless encryption type is least secure?

WEP

A blacklist includes devices that are explicitly blocked. What type of list includes devices that are explicitly allowed?

Whitelist

Which of these technologies can provide a wireless connection between a printer and another device?

WiFi | Bluetooth

Which of these network connections would allow your smartphone to sync your photos to your online account? Choose all that apply.

WiFi | Cellular

What network technology can create a private network connection over a public network?

VPN

Which two of the following hosts on a corporate intranet are on the same subnet?

172.54.98.3 255.255.255.0.0 172.52.72.89 255.255.0.0

In which of the following networks would you be most likely to find a SOHO router hosting the network?

A home office

What device insie the smartphone prompts the OS to change the screen orientation?

Accelerometer

Which of the following mobile device OSs are open source? Choose all that apply.

Chrome OS Android

Which Windows utility can you use to access the Network and Sharing Center (Choose 2)?

Control Panel / Command Prompt

What kind of connector is used to connect the ISP's coaxial cable to the modem cable modem?

F connector

Which of the following IPv6 addresses could be this computer's link-local address?

FE80::9c13:4983::8154

If your home LAN is connected to the Internet with DSL, what device would need to be installed on your network in addition to the device you would use for a network connected to the Internet using a cable service?

Filters

What does a DHCP server do?

Gives IP addresses to network devices

An app that cost you $4.99 is missing from your Android. What is the best way to restore the missing app?

Go to the Play Store where you bought the app and install it again.

Which wire pairs are used on 100BaseT network?

Green Pair Orange Pair

Which of the following is NOT an appropriate tool to use when repairing a smartphone?

Handheld vacuum magnetized screwdriver

Besides POP3, what other protocol could be used by an email client to receive an email?

IMAP4

Which wireless technology do most optical mouse devices use to track their movements over a mouse pad?

Infrared

As an IT technician, you arrive at a customer's home office to troubleshoot problems he's experiencing with his printer. While questioning the customer to get an understanding of his network, you find that he has a new Wi-Fi router that connects wirelessly to a new desktop and two new laptops, in addition to multiple smartphones, tablets, and the network printer. He also has several smart home devices, including security cameras, light switches, door locks, and a thermostat supported by an IoT controller hub. To work on the printer, which type of network will you be interacting with?

LAN

You need a VPN to connect to a private, remote network in order to access some files. You click the network icon in your taskbar to establish the connection and realize there is no VPN option available on the menu. What tool do you need to use to fix this problem?

Network and Sharing Center

What component inside the client desktop computer communicates directly with the SOHO router?

Network card

Your customer then asks you if it would be worth the investment for him to have Ethernet cabling installed to reach each of his workstations, instead of connecting them by Wi-Fi to his network. Specifically, he wants to know if that would speed up communications for the workstations. You examine his router and find that it's using 802.11ac Wi-Fi. Would you advise him to upgrade to Ethernet? Why or why not?

No, because 802.11ac speeds are faster than Ethernet

When using the T568B Standard, which wire pair is used for transmitting? which pair for receiving?

Orange pair, green pair

Suppose you're connecting a non-PoE wireless access point to a PoE-capable switch, and you want to run power to the access pint over the Ethernet cable. What device do you need to adds to this configuration to make it work?

PoE splitter

FTP requires confirmation that a file was successfully transmitted to a client, but it has no built-in mechanism to track this information for itself. What protocol does FTP rely on at the Transport layer of the TCP/IP model to ensure delivery is complete?

TCP

If an Application layer protocol needs to ensure a delivery of data to its destination, which Transport layer protocol should it use?

TCP

What symptom would you mote likely notice if a phone's batter were installed in the wrong direction?

The phone would not power on

You work for a company that provides dozens of the same smartphone model for its employees. While troubleshooting one smartphone that won't connect to the cellular network, you call the provider's tech support number for some assistance. The technician asks for the device's IMEI. What is she trying to determine?

The specific device you're calling about

Which of these cable connectors is largest?

USB-A

Which Chromebook security feature ensures that malware can't change the OS's system files?

Verified Boot