CompTIA A+ 220-901 4.0 Networking and Troubleshooting

How can you check your local TCP/IP connection

"PING localhost Ping 127.0.0.1

What should you do if you get the error message "invalid media type"?

Format HD

You find that a shared network printer's printouts are faded. You replace the toner cartridge, but the printouts are still faded. What is the source of the problem?

Fuser

Which of the following Windows commands do you use to browse all local network computers and their shared resources?

Netview

When you use your laser printer, the toner is not fused to the paper. What can you do to fix it?

Set the fuser mode for the paper

In which of the following circumstances would you use the nslookup utility?

To verify a computer's name from its Internet Protocol (IP) address

What utility can you sue to find a bottleneck when diagnosing TCP/IP connectivity

Tracert

Several users report that they can only see and connect to other workstations, but cannot connect to other network resources or to the Internet. What common failure point do you check?

Check DHCP

You have a single user who cannot connect to the Internet, but he can connect to all internal servers, to printers, and to internal web servers. What should you check as the probable cause?

Check his browser's proxy settings

A single user reports that his Wi-Fi signal is very weak—to the point of being unusable. What do you check for him?

Check sources of signal interference near him

Several users report that they can only see and connect to other workstations, but cannot connect to other network resources or to the Internet. What common failure point do you check?

Check the Dynamic Host Configuration Protocol (DHCP) server

Several users report that they cannot connect to the Internet. You try from your workstation and verify that you too cannot connect to the Internet. What do you check as a possible point of failure?

Check the Internet router for connectivity to your provider

A user tells you that she cannot connect to some network resource while others are readily accessible and no one else has the same problem. What do you check in order to investigate this problem?

Check the user's Active Directory and shared resource permissions

You have a user who complains that, while he can connect to everything on the network, he cannot connect to the Internet, but other users can. Where do you look to solve the problem?

Check the user's default gateway in Transmission Control Protocol/Internet Protocol (TCP/IP) network settings

If you have exhausted all troubleshooting possibilities in your network for slow performance or for intermittent connectivity problems, where should you turn to next for a solution?

Check with your Internet provider for any outages or problems

Which database does the nslookup utility query for information about a host?

Domain Name System (DNS)

In which situations should Continuous Aware Mode be configured on Wireless Lan Clients?

"Laptops that plugged in & Desktops that are plugged in

A customer calls and says that her computer will not boot. The customer reports that she can hear the fan and drives running and the lights on the box are lit but the screen is blank. Which components would you take to the site to fix the problem?

"Video card & Monitor

Several users notify you that the network is slow. How do you investigate the problem?

Check the switch or switches for activity

A user in your company installs a new application that includes a new updated video driver on his Windows 8 professional computer. After the installation, they restart their computer and after logging on they find that when moving windows and dialog boxes that the display is distorted. you need to find the correct video driver for the new application. Meanwhile, you need to ensure that the user can run his other applications without video distortion. What should be your response?

Roll back the driver.

Which Windows command line tool do you use to test all points along a route to a specific host or destination?

Tracert

Which networking command can help you determine the points along the route the computer uses to send a packet to a destination?

Tracert

You find that you have no network connectivity after a thorough physical connectivity check between your computer and the Ethernet jack. What do you check next?

Verify that the operating system recognizes the network interface card (NIC)

You just purchased a widescreen flat panel display. The old monitor was configured at 800x600 resolution. You install the new display and it works properly, but when you try to change the resolution setting to the recommended 1280 x 768 the resolution is not available. What is the problem?

Video memory is too slow

Which networking command allows you to confirm that the computer can connect to a Domain Name System (DNS) server and resolve an IP address for a given computer name?

ipconfig /all

Which of the following Windows command line network commands will clear Internet Protocol (IP) address information from a Dynamic Host Configuration Protocol (DHCP) server or from Automatic Private IP Addressing (APIPA)?

ipconfig /release

Which networking command allows you to confirm that the computer can connect to a Domain Name System (DNS) server and resolve an IP address for a given computer name?

nslookup

If you set up your Dynamic Host Configuration Protocol (DHCP) server to resolve Internet Protocol (IP) address conflicts, which of the following problems does this action resolve?

Assignment of duplicate IP addresses

The customer has a problem with some program applications being displayed with missing lines, details and other graphic problems. Which of the following settings could you change to help this problem?

Reduce the hardware graphics acceleration

If your laser printer's fuser roller is warped or worn, which output symptom will you observe?

Repeating horizontal lines or white spaces

Which tool would you use to troubleshoot network issues such as interference and signal strength on a wireless network?

A Wi-Fi spectrum analyzer

Which of the following is NOT a cause of vertical lines on a laser printer output?

A dirty fuser roller

To use the netdom command utility, what must you have in place?

Active Directory Domain Services (AD DS)

An application has installation requirements of 1GB Ram, 2MB video memory and 15GB HD space. When you try to install the program on your laptop, it displays an error message, "Insufficient memory". You know for a fact that your system has exactly 4GB of RAm and your video card is set at 2GB. There is more than 250GB free HD available. What will resolve this error?

Add more RAM

You are working on a 10-user network that has frequent troubles at night. The network almost never has trouble in the daytime while the lights are off. This problem is most likely?

Incorrect cable routing

You are troubleshooting a throughput problem on an 802.11b wireless network. A user complains that as she moves about the office, her client device loses connections to network resources. The client still shows a signal received from the access point, but cannot access the network. You determine that the client signal cannot reach the access point. How would you resolve this problem?

Increase Client Radio Power

An incorrectly configured hosts file on a user workstation can result in which problem?

It can result in failed services or connections to the incorrect hosts.

Your modem works fine most of the time but some connections deliver bad characters. What is the cause?

Line Noise

Which of the following tests checks the transmit and receive functions of a local modem?

Local Digital Loopback

Which Windows command line utility do you use to map a network drive to a shared resource on another computer?

NET

Which of the following commands would you use to view active network connections to your computer?

Netstat

What is the first step when configuring a HD into a system?

Partition

Which of the following is the correct syntax for the command to ping another computer until you stop it manually?

Ping -t hostname

Which of the following is a common cause of low-quality image printing from a laser printer?

Poor-quality paper

When you try to print to a network printer that you know you have access to, you receive an "access denied" message. What do you do to resolve the issue?

Power cycle the printer to refresh all connections

You have a customer who calls you to report her computer shuts down and reboots on its own when she tries to start it. What could be the cause?

Power supply is not providing enough power to the system

If you see streaks on a printed page, which part of the printer needs to be cleaned?

Printer Heads

What tool is helpful in determining where a print job is faulting?

Printer Spooler

If you attempt to connect to a known wireless network Service Set Identifier (SSID), but receive a message that the SSID is not found, what is the problem?

Someone has changed the access poin'ts SSD

An employee is complaining that when he turns his lights on in the office, he can't connect to the network. With the light off his sytem works fine. What can be the problem?

The cable system is faulty

IP address conflicts can occur on a network when system administrators do what to workstations without performing some preparative work on the Dynamic Host Configuration Protocol (DHCP) server?

When they assign Static IP Addresses

Several users complain that a newly repaired printer is not printing for them. What do you suspect is the problem?

Windows does not recognize the printer as being online.

A WMC computer is having display problems. How can you adjust the graphics hardware acceleration so that you can troubleshoot the problem?

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