IT Essentials Chapter 8 Quiz Answers Online

This item is based on information contained in the presentation.
Routers, switches, and firewalls are infrastructure devices that can be provided in the cloud.

Cloud service providers use one or more data centers for services and resources such as data storage. A data center is a data storage facility located inside the company and maintained by the IT staff or leased from a co-location provider where the maintenance can be done by the provider or the corporate IT staff.

If the LEDs are unlit, it could mean that either the NIC, the switch port, or the cable is faulty. it might also indicate an issue with the NIC configuration. Green or amber lights typically mean that the NIC is functioning correctly. A flashing green or amber light often indicates network activity.

Windows Remote Desktop allows a technician to log in to a remote computer through an existing user account. The technician can run programs and view and manipulate files within the system of the remote computer.

Normally, the closer a wireless NIC is to an access point, the faster the connectivity. This problem does not require the network password to be reissued. The combination of the low bandwidth and the intermittent connectivity is pointing towards a weak signal or interference from outside sources.

Broadband technology uses different frequencies, divided into different channels, to allow simultaneous transmission of multiple different signals on the same cable. DSL, cable, and satellite are examples of broadband network connections.

Network preventive maintenance procedures include checking the condition of cables, network devices, servers, and computers to make sure that they are kept clean and are in good working order.

The dollar sign ($) at the end of a folder name will identify that folder as an administrative share.

Wireless routers use Network Address Translation to translate internal or private addresses into Internet-routable or public addresses.

In troubleshooting, once data is gathered from the user, the technician must identify the problem.

Dynamic Host Configuration Protocol (DHCP) can be used to allow end devices to automatically configure IP information, such as their IP address, subnet mask, DNS server, and default gateway. The DNS service is used to provide domain name resolution, mapping hostnames to IP addresses. Telnet is a method for remotely accessing a CLI session of a switch or router. Traceroute is a command used to determine the path a packet takes as it traverses the network.

Look in the curriculum graphics. The closer to the CO the connection is located, the higher the possible DSL speed.

The nslookup command was created to allow a user to manually query a DNS server to resolve a given host name. The ipconfig /displaydns command only displays previously resolved DNS entries. The tracert command was created to examine the path that packets take as they cross a network and can resolve a hostname by automatically querying a DNS server. The net command is used to manage network computers, servers, printers, and network drives.

An IDS system is implemented to passively monitor the traffic on a network. Both an IPS and a firewall actively monitor network traffic and take immediate actions when previously defined security criteria match. A proxy server, when it functions as a firewall, also actively monitors the traffic that travels through it and takes immediate actions.