Chapter 6B Networking (6.8-6.14)

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.)

- 10.0.12.15 - 172.18.188.67 - 192.168.12.253

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). Use the arrows to move the correct steps from left to right. Use the up and down arrows to put the steps in the correct order, from the first step at the top to last step at the bottom.

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

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.

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

- Implement WPA2. - Disable SSID broadcast on the WAP.

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

- 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 160-MHz-wide channels.

Which of the following are antenna types that are commonly used in wireless networks

- Omnidirectional antenna - Directional antenna

You work in an office that uses Linux and Windows servers. The network uses the IP protocol. You are sitting at a Windows workstation and an application you are using is unable to connect to a Windows server named FileSrv2. Which commands can you use to test network connectivity between your workstation and the server? (Select two)

- Ping - Tracert

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

Which of the following tools allow for remote management of servers? (Select Two.)

- Telnet - SSH

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).

- The network location is not set to Home Network. - Network Discovery has been disabled on your computer.

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 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. - Use an integrated cellular antennae to connect the device directly to the cellular network. - Use a USB cellular antennae to connect the device directly to the cellular network.

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? (Select TWO).

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

Which IEEE Wireless standards specify transmission speeds up to 54 Mbps? (Select Two)

-802.11a -802.11g

Which of the following are characteristics of Bluetooth? (Select two.)

-Ad hoc connections -2.4 GHz radio wireless

Which of the following are characteristics of the 802.11g wireless standard? (Select Three.)

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

A portable computer connected to a printer with an infrared works fine inside your office. However, when you go outside, it works sporadically. Which of the following would BEST resolve this issue? (Select TWO)

-Block direct and reflected sunlight from the pathway between the PC and the printer. -Move the printer closer to the computer.

Which of the following locations will contribute the greatest amount of interface for a wireless access point?

-Near backup generators -Near cordless phones

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

-RJ-11 connectors -Filters or splitters

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

-Two data Channels -Dial-up connection -One control channel

What is the maximum range of the Bluetooth 2.0 specification for Class 1 devices?

100 M

Which data transmission rate is defined by the IEEE 802.11b wireless standard?

11 Mbps

Which of the following is not one of the ranges of IP addresses defined in RFC 1918 that are commonly used behind a NAT router?

169.254.0.1 - 169.254.255.254

Which of the following is the maximum transmission speed for Bluetooth v3 and v4 devices?

24 Mbps

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

802.11a

Which of the following wireless networking standards uses a frequency of 5GHz and supports transmission speeds up to 1.3 Gbps ?

802.11ac

You are designing a wireless network for a client. Your client needs the network to support a data rate of at least 150 Mbps. In addition, the client already has a wireless telephone system installed that operates 2.4 GHz. Which 802.11 standard will work best in this situation?

802.11n

You have been contacted by OsCorp to recommend a wireless Internet solution. The wireless strategy must support a transmission range of 150 feet, use a frequency range of 2.4 GHz, and provide the highest possible transmission speeds. Which of the following wireless solutions would you recommend?

802.11n

Which type of configuration would you use if you wanted to deploy 802.11n technology to communicate directly between two computers using a wireless connection?

Ad hoc

Up to 10 meters for Class 2 devices.

Bluetooth

Up to 100 meters for Class 1 devices.

Bluetooth

You need a type of wireless connection that can transfer data between your phone, PDA, and laptop. You are transferring sensitive information. Which of the following would be the BEST choice?

Bluetooth

You want to use a wireless keyboard and mouse with your laptop computer. Which method should you choose?

Bluetooth

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

Cellular

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

Copper telephone wire.

Which of the following is not an example of wireless networking communications?

DSL

While configuring a SOHO (Small or Home Office) 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 (web browser) 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 feature would you use?

HomeGroup

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

ISDN

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 hops to the destination Web server. What is the most likely cause of the problem?

Incorrect DNS server address.

You manage a network that has multiple internal subnets. You connect a workstation to the 192.168.1.0/24 subnet This workstation can communicate with some hosts on private network, but not with other host. You run IPCONFIG/ALL and see the following: Ethernet adapter Local Area Connection : Connection- specific DNS Suffix . : mydomain . local Description . . . Broadcom network adapter Physical Address . : 00 - AA-BB-CC-74-EF DHCP Enabled . . . . . . . No Autoconfiguration Enabled . Yes IPv4 Address 192 . 168 . 1 . 102(Preferred) Subnet Mask . 255 . 255 . 0 . 0 Default Gateway : 192 . 168 . 2.1 DNS Servers . . 192 . 168 . 2 . 20 what is most likely cause of the problem?

Incorrect default gateway

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: Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : mydomain.local Description . . . . . . . : Broadcom network adapter Physical Address . . . . . . : 00-AA-BB-CC-74-EF DHCP Enabled . . . . . . . : No Autoconfiguration enabled . . . : Yes 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 the MOST likely cause of the problem?

Incorrect subnet mask

Up to 30 meters in areas without interference.

Infrared

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 the other computers. Which of the following will MOST likely fix for your issue?

Join the laptop to the HomeGroup.

You are an IT technician for your company. Your boss has asked you to set up and configure a wireless network to service all the conference rooms. Which of the following features lets you allow or reject client connections based on the hardware address?

MAC address filtering

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

Modem

Which of the following wireless communication technologies can be described as follows? - Has a very limited transmission range, of less than two inches. -Used with credit cards and passports. -Slower than other wireless technologies. -Constantly emitting a signal.

NFC

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

SSH

Which of the following is used on a wireless network to identify the network name?

SSID

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 are an IT technician for your company and would like to be able to: - Establish a remote server management session. - Send encrypted (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?

Telnet

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 the cause of the problem?

The client system has moved too far away from the access point.

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.

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?

The user is out of the effective range of the wireless access point on her floor.

Which of the following are good reasons to enable NAT?

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

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 wold you MOST likely perform on the router?

Update the firmware

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

WPA2

Which of the following is true when the DHCP setting is disabled in a wireless network?

Wireless clients must use a static IP address range to connect to the network.

One of your customers has hired you to set up and configure a SOHO (Small or Home Office) 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 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 from the command prompt and learn that your system has been assigned an IP address of 169.254.1.12. While of the following is MOST likely caused you to obtain that address?

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

Portable devices have a software-controlled switch that disables all wireless functionality. In the location provided, type the name of this software-controlled switch? (TYPE)

airplane mode

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 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 see the network card's MAC address and the addresses of the DHCP and DNS servers the workstation is communicating with. What command would you enter at the command line to see this detailed information? ------------------------------------ ------------------------------------ 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? -------------------------------------------------------------------------- (Type response)

ipconfig /all ipconfig /flushdns

You are the computer specialist in a small business. Your company server is named FS1 and has an IP address of 10.0.2. The hardware in your company server has started to experience intermittent failure, so you transferred the shares on the server to a spare server and took 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 10.0.03. 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. (Type response)

ipconfig /flushdns

Which command would you use to have a workstation stop using an IP address that it obtained from a DHCP server?

ipconfig /release

You are troubleshooting network connectivity issues on a workstation. Which command would you use to request new IP configuration information form a DHCP server?

ipconfig /renew

Displays active sessions. ports, sockets and the local routing table.

netstat

Displays current connections and incoming and outgoing connections.

netstat

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

netstat

A user is having problems connecting to other computers using host names. Which of the following commands will BEST help you troubleshoot this problem?

nslookup

Examine the following output: Server: helicuplar.xct.takro.net Address: 209.53.4.130 Name: westsim.com Address: 64.78.193.84

nslookup

Resolves (looks up) the IP address of the specified hostname.

nslookup

A few simple replies to this request from the remote host indicates that a connection exists between sender and receiver.

ping

Examine the following output. Reply from 64.78.193.84: bytes=32 time=86ms TTL=115 Reply from 64.78.193.84: bytes=32 time=43ms TTL=115 Reply from 64.78.193.84: bytes=32 time=44ms TTL=115 Reply from 64.78.193.84: bytes=32 time=44ms TTL=115 Which of the following utilities produced this output?

ping

Sends an ICMP echo request/reply packet to a remote host.

ping

When used with the -t option, performs a continuous connection test.

ping

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

Examine the following output: 4 22 ms 21 ms 22 ms sttlawa01gr02.bb.ispxy.com [154.11.10.62] 5 39 ms 39 ms 65 ms plalca01gr00.bb.ispxy.com [154.11.12.11] 6 39 ms 39 ms 39 ms Rwest.placa01gr00.bb.ispxy.com [154.11.3.14] 7 40 ms 39 ms 46 ms svl-core-03.inet.ispoxy.net [205.171.206.29] 8 75 ms 117 ms 63 ms dia-core-01.inet.ispxy.net [205.151.142.1] Which of the following produced this output?

tracert

Tests connectivity between devices and shows the routers in the path between the two devices.

tracert