PC PRO Ch 11.5-11.9

You are currently using a cellular network plan that provides maximum speeds of up to 10 Gbps for your smart phone. Which of the following cellular network types are you using?

5G

A technician is installing a new SOHO wireless router. Which of the following is the FIRST thing the technician should do to secure the router?

Change the router's default password.

A technician receives a notification from a SOHO router manufacturer of a specific vulnerability that allows attackers to exploit SNMP traps to take over routers. The technician verifies the settings outlined in the notification. Which of the following actions should the technician take NEXT?

Check for and apply firmware updates.

You have just connected a new computer to your local network. The network uses static IP addressing. You find that the computer can communicate with hosts on the same subnet, but not with hosts on a different subnet. No other computers are having problems. Which of the configuration values would you most likely need to change?

Default gateway

After several new computers are connected to a network device, every computer connected to the device begins to experience slow transfer speeds. Which of the following is the FIRST step to troubleshoot this problem?

Determine whether the network device is a hub or a switch.

You have subscribed to a satellite radio service that you use in your car to access music and news on long trips through areas where cellular service is not available. However, when going through long tunnels and heavily forested canyons, you sometimes lose your signal for a short period of time. Which of the following satellite technologies is your service provider using?

GEO

Which of the following hardware devices regenerates a signal out to all connected ports without examining the frame or packet contents?

Hub

You manage a network that has multiple internal subnets. You connect a workstation to the 192.168.1.0 subnet using 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 . . . . . . . : 255.255.255.0 Default Gateway. . . . . . . . . : 192.168.2.1 DNS Servers. . . . . . . . . . . : 192.168.2.20 Which of the following is the MOST likely cause of the problem?

Incorrect default gateway

Which of the following issues causes variations in the latency of VoIP packets?

Jitter

Several of your employees are experiencing limited connectivity issues when trying to access some websites on the internet from their workstations. However, they can access the local company network without any problems. You have already tried using the ip and ipconfig commands to determine that the websites can be reached and that the IP information on the workstations is configured properly. You know that the connection to your internet service provider is working properly as well. What should you do next?

Make sure that the DNS server is functioning properly.

You have just installed a wireless network, but the network is experiencing slow speeds, especially when accessing the internet from your workstation. Which action should you try FIRST to resolve the issue?

Move the wireless access point.

Which of the following locations will contribute the greatest amount of interference to a wireless access point? (Select two.)

Near backup generators Near cordless phones

A technician is installing a network-enabled smart home control system in a SOHO. Which of the following configurations is MOST likely required on the SOHO router in order to access the system from the internet?

Port forwarding

Which Windows network location enables network discovery and allows files and printers to be easily shared?

Private

You want to connect your internal network to an external network in order to provide internet access to your employees. Which of the following network components is designed to make this type of connection?

Router

Which of the following is a specialized controller that you can use to remotely manage all your network devices?

SDN

Which of the following identifies the network name on a wireless network?

SSID

A healthcare organization provides mobile clinics throughout the world and needs to transfer patients' statistical data to a central database via the internet. Which network technology would be BEST to use to ensure network connectivity for any clinic located anywhere in the world, even remote areas?

Satellite

A technician determines that an older network hub that connects 24 workstations is performing poorly due to excessive network collisions. Which of the following network devices would be the BEST replacement?

Switch

You are using a patch panel to connect the computers in your building to the appropriate switches, and you need to connect the Ethernet wires from the building network port cables to the patch panel. Where do you connect the wires on a patch panel?

You connect the wires to the backside of the panel.

You are troubleshooting network connectivity issues on a Windows workstation. Which command would you use to view the network adapter's MAC address?

ipconfig /all

You need to view detailed IP configuration information on your Windows workstation. In addition to the IP address, subnet mask, and default gateway configuration, you need to see the network card's MAC address and the addresses of the DHCP and DNS servers the workstation is communicating with. Which command would you enter at the command line to see this detailed information?

ipconfig /all

When you see the DNS server address, 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. Which command can you enter at the command line to update the DNS server information right away?

ipconfig /flushdns

You are the computer specialist for 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 transfer the shares on the server to a spare server and take 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. Afterward, 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 that the FS1 server cannot be found. Enter the command you can run from Command Prompt on these workstations that will allow them to access the shares on FS1 without performing a full restart.

ipconfig /flushdns

You are troubleshooting network connectivity issues on a workstation. Which command would you use to request new IP configuration information from 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 can you use to view a computer's current connections, active sessions, and ports?

netstat

Resolves (looks up) a speficied hostname's IP address.

nslookup

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

ping

Performs a continuous connection test when used with the -t option.

ping

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

ping

You have had several employees call the help desk where you work, complaining that they are not able to reach the www.widgets.com server. To help troubleshoot this issue, you decide to run a variety of commands. Which of the following commands is MOST likely to return the IP address of the desired server?

ping www.widgets.com

Examine the following output: 4 22 ms 21 ms 22 ms sttlwa01gr02.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.plalca01gr00.bb.ispxy.com [154.11.3.14] 7 40 ms 39 ms 46 ms svl-core-03.inet.ispxy.net [205.171.205.29] 8 75 ms 117 ms 63 ms dia-core-01.inet.ispxy.net [205.171.142.1] Which command produced this output?

tracert

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

tracert

You are the network administrator of a branch office for your company. The branch office network is part of a WAN that covers most of the United States. Users have been complaining that they are unable to access resources over the WAN at the main headquarters. You suspect that one of the routers between your office and the main headquarters is not working properly. Which of the following TCP/IP utilities would be BEST to use to troubleshoot the routers?

tracert

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 of the following commands would work BEST to test network connectivity between your workstation and the server? (Select two.)

tracert ping