A+ core 1

Which of the following network technologies is packaged as part of a BRI plan?

ISDN

Which of the following cloud computing solutions delivers software applications to a client either over the internet or on a local area network?

SaaS (Software as a Service)

You need to provide DHCP and file share services to a physical network. These services should be deployed using virtualization. Which type of virtualization should you implement?

Virtual servers

A user is configuring an email client application and decides to use the TCP/IP suite protocol that will store all messages on the email server so that they can be synchronized across a laptop, a smartphone, and a web email client. This protocol will store the email messages on the email server until the user explicitly deletes them. Which of the following TCP/IP port numbers will the client application typically use while using this protocol to contact the email server?

143

An administrator configures a server to run the TCP/IP suite protocol that allows users to download files contained in specific directories on the server and also protects access to those files by requiring user authentication. Which of the following TCP/IP port numbers allow this protocol to work properly?

20, 21

Which port does Telnet use?

23

What is the maximum number of nodes Z-Wave allows on its mesh network?

232

You've just installed the DNS service on a Windows server. Which port must be opened in the server's firewall to allow clients to access the service?

53

Which wireless standard can stream data at a rate of up to 54 Mbps using a frequency of 5 GHz?

802.11a

Which IEEE wireless standards specify transmission speeds up to 54 Mbps?

802.11a, 802.11g

A wireless technology standard for exchanging data over short distances.

Bluetooth

You have a user who takes his laptop home every day after work. When he's working in the office, the laptop must get an IP address from the DHCP server so you configure it to obtain IP and DNS information automatically. When he's working from home, the laptop must use IP and DNS information that connects with his home network. Which IP addressing method can you use to make sure he gets a network connection at home?

Alternate IP configuration

Which of the following are characteristics of the 802.11g wireless standard?

Backwards compatible with 802.11b devices. Operates in the 2.4 GHz range. Maximum bandwidth of 54 Mbps.

Which of the following methods can be used to connect a printer to a network?

Connect your printer to an external print server device that is connected to the network. Plug an Ethernet cable into the network port in the printer.

You are in the process of building a new computer. You would like to configure your computer to use SLI to improve performance while playing your favorite game. Which of the following will MOST likely be part of the configuration process?

Connect at least one monitor to the graphics card. Purchase a motherboard with two (or more) PCIe x16 slots. Purchase two graphics cards with SLI and similar specifications.

One of your customers wants to configure a small network in his home. The home has three floors, and there are computers on each floor. This customer needs to share files between computers, print to a centrally located printer, and have access to the internet. Which of the following print solutions would BEST meet this client's needs?

Create a Wi-Fi infrastructure network

As an IT technician for your company, you have been notified that the Windows domain does not seem to be functioning properly. Being familiar with domains, you are fairly confident you know what the issue is. But just to be safe, you take the applicable time to gather additional information and to identify what, if anything, has changed. Which of the following is the BEST next step?

Create a hypothesis.

You are the manager in charge of maintaining desktop computers. A user reports that she can't turn her computer on. After some investigation, you find that the power supply is malfunctioning. Which of the following actions should you perform NEXT?

Create an action plan

Currently, the users in your company are required to use their IP addresses when connecting to other hosts. Since IP addresses are difficult to remember, you want to implement a protocol on your network that allows computers to automatically find another host's IP address using a logical name. Which of the following protocols would be the BEST to implement?

DNS (Domain Name System)

Which component in a laser printer applies toner to the drum, causing the toner to stick to the charged areas on the drum?

Developing roller

To fix a problem you are having with your PC, you have determined that you must flash the computer's BIOS. Which of the following would MOST likely need to be completed prior to flashing the BIOS?

Download the flash utility or tool from the manufacturer's website. Properly identify the motherboard.

Can support multiple networks on each of its interfaces, unlike the physical version

Virtual router

Memory is not properly seated or missing/the motherboard is defective.

First boot of a new computer

You have a virtual machine and have installed the Windows 10 operating system on it. You want this machine to be able to communicate with the physical network using a bridged connection t over the physical host's network adapter. Which of the following connection types will you use when configuring the virtual switch in Hyper-V Manager?

External network

You currently use a Windows 7 Ultimate desktop system. You have been asked to evaluate Windows 10 as a possible upgrade for the Windows 7 systems you manage. You decide to install Windows 10 in a VHD file on your Windows 7 system. To ensure that the evaluation is realistic, you need to ensure the best possible performance. Which type of VHD file should you use?

Fixed size

You are using a crimper to attach an RJ45 connector to a Cat 6 UTP cable. You need to use the T568A standard to connect the individual wires to the connector. Which wire should be connected to pin 1?

Green with white

Incompletely or improperly doing this can cause errors that appear to be memory-related.

Hardware installation or removal

You are the IT technician for your company. Which of the following mechanisms would BEST allow you to resolve a hostname into its associated IP address?

Hosts file

A physical location where you can obtain wireless internet access using a WLAN.

Hotspot

Which of the following protocols is used by an email client to retrieve messages from an email server and gives users the option to keep mail messages on the server?

IMAP

A technician is configuring the static TCP/IP settings on a client computer. Which of the following configurations are needed for internet communications?

IP address including a subnet mask (IPv4) or subnet prefix length (IPv6). DNS server address. Default gateway address.

You were recently hired by a small start-up company. The company is in a small office and has several remote employees. You have been asked to find a business service that would accommodate the current size of the company but would also be able to scale as the company grows. The service needs to provide adequate storage, as well as additional computing power. Which cloud service model should you use?

IaaS (Infrastructure as a Service)

You are responsible for managing client workstations for your company. A frantic user calls you one morning exclaiming, "Nothing is working!" Which of the following actions should you perform FIRST?

Identify the problem

If a printer is not Wi-Fi capable, how can it be set up to provide the most reliable wireless printing?

If the printer is Ethernet capable, it can be connected to the network through a wireless router.

A network in a small geographic area that typically uses wires to connect systems together.

LAN (local area network)

Your company needs to print a lot of high-quality black-and-white text documents. These documents need to be printed as quickly and inexpensively as possible. The printer must also have the capacity to perform duplex printing. Which of the following printers BEST meets the printing requirements for your company?

Laser

A set of subnets connected to each other, typically by wires, using at least one router

Local Area Network (LAN)

The 802.11ac wireless networking standard provides increased bandwidth and communication speeds by using which of the following technologies?

MU-MIMO to allow multiple users to use the same channel. Channel bonding to combine more channels in the 5 GHz band to allow for up to 160MHz-wide channels.

The memory is not compatible and was not installed and configured properly.

Memory upgrade

A network that is typically owned and managed by a city as a public utility

Metropolitan Area Network (MAN)

Provides mobile devices with access to network resources and software applications on their home network when they connect using other wireless or wired networks.

Mobile VPN

Which of the following refers to placing two processors on a single processor chip or die?

Multi-core

A connector used to emulate cryptographic smart card functionalities.

NFC

Zoey has brought her computer in for servicing. When she dropped off her computer, she mentioned that her computer will sometimes spontaneously reboot and freezes occasionally. Which of the following is the MOST likely cause of this problem?

Overheated CPU

Which of the following best describes the Platform as a Service (PaaS) cloud computing service model?

PaaS delivers everything a developer needs to build an application onto the cloud infrastructure.

A small network used for connecting devices, such as a notebook computer, a wireless headset, a wireless-printer, and a smartphone.

Personal Area Network (PAN)

A technician is running a network above a dropped ceiling that is also used for ventilation. The cable must be twisted pair and must be capable of Gigabit Ethernet speeds. Which of the following cables should be used?

Plenum-rated CAT-6a

You are in the process of building a new computer. You would like to configure your computer to use Crossfire to improve performance when playing your favorite game. Which of the following will be part of the configuration process?

Purchase two identical video cards.

You installed a new toner cartridge in a company-owned laser printer and did some maintenance tasks you noticed that needed to be done. What should you do next?

Reset the page count

When you print from your laser printer, the paper contains faint images from previous printouts. When you print from your laser printer, the paper contains faint images from previous printouts. Which of the following components is MOST likely the cause?

Rubber scraper. Fluorescent lamp.

You've used your Windows workstation to map a drive to a shared folder on a Windows server. Which protocol was used to access the share?

SMB (Server Message Block)

Which protocol is used to send email messages from a mail client to a mail server?

SMTP (Secure Message Transfer Protocol

Occasionally, Rachel works from another Mac in her office, rather than her own, and needs to be able to access her Mac while she is away from her desk. Which option can Rachel use to access her MAC?

Screen sharing

This event can require more memory and can cause problems if there is not enough memory when it occurs.

Software installation

Allows you to share the internet connection of a phone with a laptop.

Tethering

You have just finished replacing the motherboard in your friend Ethan's computer with the same type of motherboard it originally had. You tested the motherboard by powering it on and verifying that the operating system started, and his applications were working. Now Ethan is complaining that his computer no longer recognizes his external hard drive. Which of the following is MOST likely causing the external hard drive not to function?

The USB front panel connector was not properly connected.

Which of the following identifies the prefix component of an IPv6 address?

The first four quartets of an IPv6 address. The first 64 bits of an IPv6 address.

Which of the following identifies the Interface ID component of an IPv6 address?

The last four quartets of an IPv6 address. the last 64 bits of an IPv6 address.

A technician is unable to install virtualization software on a host computer. The host has more free disk space than required. Which of the following is MOST likely to be the cause?

The motherboard UEFI/BIOS doesn't support hardware assisted virtualization.

A maintenance worker accidentally nicks a bundle of network cables routed to multiple wall jacks in a conference room. Only one of the cable's wires are severed. A technician is tasked with replacing the cable. Which of the following tools would the technician MOST likely use to identify which wall jack connects to the severed cable?

Tone generator and probe

Which component in a laser printer charges the paper to attract toner?

Transfer roller

You are building a new computer from both new and used parts. The video card is a PCIe video card that requires an 8-pin power connector. However, your power supply doesn't have an 8-pin PCIe power connector. Which solution would be the least expensive option for your system?

Use an adapter cable to connect two 4-pin Molex connectors to the 8-pin PCIe connector.

Can be defined within the virtual switch and associated with specific hosts

Virtual VLAN

Aubrey, an employee in the marketing department, has told you that when she prints to her laser printer, faint ghost-like images are being printed on her new page. As an IT administrator, you check with other employees who use the same printer and find that they are not experiencing the same problem. Which of the following would be the best fix for this issue?

Use preprinted paper that has been printed with laser-compatible printer toner.

For the past several days, the print jobs from the inkjet printer are missing colors and leaving gaps. Which of the following will MOST likely resolve the problem?

Use the automatic print head cleaning feature.

Which of the following are options for connecting a computing device, such as a notebook computer or a tablet, to a cellular network?

Use the device's Wi-Fi to connect to the network through a cellular Wi-Fi hot spot. Use an integrated cellular antennae to connect the device directly to the cellular network. Use a USB cable to connect the device to the network through a smartphone. Use a USB cellular antennae to connect the device directly to the cellular network.

A company has built a video streaming service that supplies training videos. Quickly transmitting video data to customers is more important than guaranteed delivery. Which of the following transport layer TCP/IP suite protocols is MOST likely used for this service?

User Datagram Protocol (UDP)

Uses Ethernet standards to transmit and receive frames on the network

Virtual network interface

Which of the following are true concerning the Virtual Desktop Infrastructure (VDI)?

User desktop environments are centrally hosted on servers instead of on individual desktop systems. In the event of a widespread malware infection, the administrator can quickly reimage all user desktops on a few central servers.

Which term refers to a software implementation of a computer system that executes programs like a physical machine?

Virtual machine

You have just purchased a new home and want to purchase a home theater computer system. Which of the following hardware selection criteria is the MOST important for this system?

Video card with HDMI output. HTPC form factor.

A few of your employees have complained that their computers sometimes shut down spontaneously. You have noticed that these employees all work in a part of the building where the air condition does not adequately cool the room. These employees also use CPU-intensive programs. You suspect that the spontaneous shutdowns are caused by overheating. Which of the following is the SIMPLEST way to monitor the temperature of the computer's CPU?

Viewing the temperature from within the BIOS.

A group of networks that are geographically isolated, but are connected to form a large internetwork.

Wide Area Network (WAN)

Similar to a standard LAN, but uses radio signals instead of wires to connect systems together.

Wireless Local Area Network (WLAN)

Which component in a laser printer applies toner to the drum, causing the toner to stick to charged areas on the drum?

developing roller

A technician is replacing a SOHO router and has configured the DHCP to assign private IP addresses to hosts on the local network. These hosts can communicate with each other, but users cant browse the internet. Which of the following changes to the SOHO router is most likely to restore internet connectivity?

configure the SOHO router of NAT

Which term describes the layer of software that resides between the virtual operating system and the physical hardware it is running on in a virtualization environment?

hypervisor

Recently, your laptop won't power on, and the battery is not charging. You suspect the block on the power cord (also known as a brick) no longer works. Which tool will help you troubleshoot this problem?

multimeter

Which of the following are true regarding a dual-channel memory bandwidth configuration?

the memory controller must support dual channels. bandwidth is increased by 5-15%.

You turn on your desktop computer. You can hear the fans start up, but the monitor remains blank. You wait a while, but it doesn't appear that anything else is happening. The hard drive activity light doesn't show activity, and you never hear the sound that plays when Windows loads. Which components are the most likely cause of the problem?

video card, memory, processor

Implemented within the hypervisor to monitor and filter traffic on the virtual network as it flows between virtual machines

virtual firewall

Which term refers to a software implementation of a computer system that executes programs like a physical machine?

virtual machine

Builds a table that identifies which MAC addresses are connected to each of its ports

virtual switch