ITE 7.0 Chapter 6
Port Forwarding
A customer has a web server for a small business. The business uses both wired and wireless networking. A Linksys WRT300N wireless router provides wireless and wired connectivity. What firewall option may be enabled in order for customers to gain access to the web server from their remote locations?
2001:0db8:cafe:4500
A device has been assigned the IPv6 address of 2001:0db8:cafe:4500:1000:00d8:0058:00ab/64. Which is the network identifier of the device?
The gateway IP address is misconfigured.
A new computer workstation has been installed in a small office. The user of the workstation can print a document using a network printer on the LAN, but cannot access the Internet. What is a possible cause of the problem?
the website for the manufacturer of the NIC
A technician wishes to update the NIC driver for a computer. What is the best location for finding new drivers for the NIC?
Identify a problem
Step 1 of the 6 step troubleshooting process. This step requires a technician asking a customer a series of questions about the problem
nslookup command
What command can be used to troubleshoot domain name resolution issues?
Workstations are assigned with IP addresses in the 169.254.0.0/16 network.
What is a result when the DHCP servers are not operational in a network?
Optional Values
preferred Domain Name System (DNS) server address and the alternate DNS server address
ipconfig /release
A computer has been assigned an IP address of 169.254.33.16. What command initiates the process of requesting a new IP address?
It cannot communicate outside its own network.
A computer is assigned an IP address of 169.254.33.16. What can be said about the computer, based on the assigned address?
The DNS server address is misconfigured on the workstation., The web server information is misconfigured on the DNS server.
A user reports that the corporate web server cannot be accessed. A technician verifies that the web server can be accessed by its IP address. What are two possible causes of the problem?
Document findings, actions, and outcomes
the final stage of the 6 step troubleshooting process
The wireless router still has the factory default IP address
A wireless router is displaying the IP address of 192.168.0.1. What could this mean?
link-local address
IP address used by a device to communicate with other computers connected to the same network within the same IP address range
The DHCP server is unreachable
What is the problem if a computer automatically configures an IP address in the 169.254.x.x address range?
Whitelisting
Which filtering method uses IP addresses to specify allowed devices on your network?
DHCP (Dynamic Host Configuration Protocol)
Which protocol dynamically assigns IP addresses to network devices?
ICMP (Internet Control Message Protocol)
Which protocol is used by ping to test connectivity between network hosts?
ping
a protocol that uses ICMP echo request messages to test connectivity between devices
Network Address Translation
a protocol used to convert a private IP address to an Internet-routable address
QoS
a protocol used to guarantee that certain traffic types, like voice and video, are priortized over traffic that is not as time-sensitive, such as email or web browsing
IP address
addressing that is assigned by a network administrator based on the location of the device within the network
MAC address
addressing that is hard coded onto the network interface card by the manufacturer
automatic private IP addressing
an address in the range of 169.254.0.0 - 169.254.255.255 that is automatically assigned by the operating system
default gateway
identifies the router that this device uses to access the internet or another network
IP Address (Internet Protocol Address)
identifies this device on the network
subnet mask
identify the network on which this device is connected
