C.S. Assessment 10/26

You need to view detailed IP configuration information on Windows workstation. In addition to the IP address, subnet mask, and default gateway configuration, you need to know the network card's MAC address and the addresses of the DHCP and DNS servers the workstation is communicating with. When you see the address of the DNS server, you realize that this information needs to be updated. Earlier in the day, you implemented a new DNS server with a new IP address. The workstation will update this information in 24 hours. What command can you enter at the command line to update the DNS server information right away?

1. ipconfig /all 2. ipconfig /flushdns

Which of the following is not one of the ranges of IP addresses defined in RFC 918 that are commonly used behind a NAT router?

169.254.0.1-169.254.255.254

You have a computer that is connected to the Internet through a NAT router. You want to use a private addressing scheme for your computer. Which of the following IP addresses could you assign to the computer? - Select three

192.168.12.253 172.18.188.67 10.0.12.15

Which of the following types of Internet connection services can allow you to be truly mobile while maintaining your Internet connection?

Cellular

A user on your network has been moved to another office down the hall. After the move she calls you, complaining that she has only occasional network access through her wireless connection. Which of the following is MOST likely not the cause of the problem?

Client system has moved too far away from the access point.

List the general steps that are used to configure a SOHO router and set up the network. Assume that the wireless router does not also function as a modem.

Configure the Internet connection Configure the wireless router Enable NAT Configure DHCP Secure the SOHO network

Which type of network medium is used by an Integrated Services Digital Network (ISDN) adapter?

Copper telephone wire

A customer has called and indicated that he thinks his neighbor is connecting to his wireless access point to use his high-speed internet connection. Which of the following will MOST likely help resolve this issue? - Select two

Disable SSID broadcast Implement WPA2

You are configuring an ADSL connection. Which of the following will be part of the configuration? - Select two

Filters or splitters RJ-11 (telephone) connectors

While configuring a SOHO for one of your customers, you decide to enable quality of service (QoS). Which of the following is the BEST example of a network feature that could now be implemented?

Give VoIP network traffic higher priority and more bandwidth than HTTP traffic.

You have a Windows 7 computer connected to a small network that is not part of a domain. You want to see the computers and printers on the network. Which features would you use?

HomeGroup

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

ISDN

You have a small wireless network with less than 50 client computers. You upgraded the hardware on two wireless devices so you can use a better security standard than WEP. Now you need to implement the new security standard. You need the greatest amount of security with the least amount of effort and without replacing any of the wireless infrastructure. Which of the following steps would you MOST likely perform? - Select two

Implement WPA2-AES Configure each client with the same key.

Your home computer belongs to a homegroup so that resources can be shared between other computers you have in your home. Where would you find the resources that are being shared from other computers?

In the Libraries container in Windows Explorer

A user reports that he can't browse to a specific website on the Internet. From his computer, you find that a ping test to the Web server succeeds. A trace route test shows 17 hope to the destination Web serrver. What is likely the cause of the problem?

Incorrect DNS server address

You manage a network that has multiple internal subnets. You connect a workstation to the 192.168.1.0 subnet, which uses the default subnet mask. This workstation can communicate with some hosts on the private network, but not with other hosts. You run ipconfig /all and see the following: Connection-specific DNS Suffix: mydomain.local Description: Broadcom network adapter Physical Address: 00-AA-BB-CC-74-EF DHCP disabled Autocinfiguration enabled IPv4 Address: 192.168.1.102 (preferred) Subnet mask: 255.255.0.0 Default Gateway: 192.168.1.1 DNS servers: 192.168.1.20, 192.168.1.27 Which of the following is most likely cause of the problem?

Incorrect subnet mask

Which actions allow you to access the Internet on your laptop via a cellular network?

Install a cellular USB adapter in a open port on the laptop.

You have a small network. All computers are running Windows 7. you have created a HomeGroup for your network. You have a laptop that you use at work that runs Windows 7 Professional. You connect the laptop to the network. You are unable to see shared files on other computers. Which of the following will most likely fix your issue?

Join the laptop to the HomeGroup.

To access the Internet through the Publicly Switched Telephone Network (PSTN), what kind of connectivity device must you use?

Modem

Matching 1. Resolves the IP address of the specified hostname nslookup 2. Tests connectivity between devices and shows the routers in the path between the two devices tracert 3. Sends an ICMP echo request/reply packet to a remote host ping 4. Displays current connections and incoming and outgoing connections netstat 5. A few simple replies to this request from the remote host indicates that a connection exists between sender and receiver ping 6. Displays active sessions, ports, socketse and the local routing table. netstat 7. When used with the -t option, performs a continuous connection test.

N/A

You want to join your computer to a HomeGroup but you don't see any HomeGroups on your home network. You know they have been set up on other computers at home. Which of the following is most likely preventing you from seeing the homegroups that have been created? - Select two

Network Discovery turned off The network location is not set to Home Network

What is the name of the utility, which is similar to Telnet, that you can use to establish a secure remote server management session?

SSH

You are an IT technician for your company and would like to be able to: Establish a remote server management session Send unencrypted (clear text) transmissions to the remote server Manage specialized industrial and scientific devices. Which of the following utilities would be the best to use to accomplish these tasks?

SSH

Which of the following tools allow for remote management of servers? - Select two

SSH Telnet

A healthcare organization provides mobile clinics throughout the world and needs to transfer patient statistical data to a central database via the Internet. Which network technology should you select to ensure network connectivity for any clinic located anywhere in the world, even remote areas?

Satellite

You have a small wireless network that uses multiple access points. The network uses WPA and broadcasts the SSID. WPA2 is not supported by the wireless access points. You want to connect a laptop computer to the wireless network. Which of the following parameters will you MOST likely need to configure on the laptop? - Select two

TKIP encryption Preshared key

You are installing a satellite connection so your home office can connect to the Internet. Which of the following statements is true?

The satellite dish must be pointed in the correct direction for communicating with the satellite

Which of the following are good reasons to enable NAT?

To translate between Internet IP addresses and the IP addresses on your private network.

Which of the following are features of Basic Rate ISDN (BRI)? - Select three

Two data channels Dial-up connection One control channel

You recently installed a wireless router in a small home office.One of your main goals is to avoid security holes and bugs. Which of the following tasks would you MOST likely perform on the router?

Update the firmware

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

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

A user calls to report that she is experiencing intermittent problems while accessing the wireless network from her laptop computer. While talking to her, you discover that she is trying to work from the break room two floors above the floor where she normally works. Which of the following is the MOST likely cause of her connectivity problem?

User is out of the effective range of the wireless access point.

You need to add security for your wireless network. you would like to use the most secure method. Which method should you implement?

WPA2

One of your customers has hired you to set up and configure a SOHO network. Which of the following is the PRIMARY device required?

Wireless router

You are talking with a customer support technician on the telephone. The technician recommends downloading a particular driver from the Internet. When you try to connect to the Internet using your dial-up modem, you can't. What is the problem?

You need to hang up.

You're trying to access your office network with your Windows workstation from home using your organization's virtual private network (VPN). Your DSL modem has connected to your ISP, but you can't connect to your office network. You issue the ipconfig command prompt and learn that your system has been assigned an IP address of 169.254.1.12

Your ISP's DHCP server isn't working properly.

Because of how simple they are to set up, you want to create a homegroup at the office. What is most likely to prevent you from setting up a homegroup at work?

Your computer belongs to a domain Your network location is not set to Home Network.

Which of the following utilities can you use from the command line on a Linux system to see a list of the installed network interfaces, along with their current status and configuration?

ifconfig

You are the computer specialist in a small business. Your company server is named FS1 and has an IP address of 10.0.0.2. The hardware in your company server has started to experience intermittent failures, so you transferred the shares on the server to a spare server andtook the main server offline. The spare server has an IP address of 10.0.0.3. You edit the existing A record for FS1 on your company's DNS server and redirect the hostname to the spare server's IP address of 10.0.0.3. After doing so, most users are able to access the shares on the spare server by hostname, but several users cannot. Instead, they see an error message indicating the FS1 server could not be found Enter the command you can run from the command prompt on these workstations that will allow them to access the shares on FS1 without performing a full restart.

ipconfig /flushdns

Which utility would you use to view current connections and active sessions and ports on a computer?

netstat

You are troubleshooting connectivity between your computer and the www.widgets.com server, whose IP address is 192.168.1.1. Which of the following commands tests connectivity to the device as well as name resolution?

ping www.widgets.com