IT Essentials Ch 6 Review - Applied Networking

How many bits of the following IP address are available to assign host IP addresses?

192.168.0.1 /16

• 8

• 16

• 32

• 128

IPv4 addresses have 32 bits. How many bits are IPv6 addresses?

• 32

• 64

• 256

• 128

Which of the following should you check if host on a wireless network is really slow? (Pick all that apply.)

• Interference from other wireless sources

• Too far from access point

• Update to NIC driver

• DHCP Service Down

Which firewall setting would you use to allow traffic to a web server on your local network but prevent it from getting to other devices on your network?

• MAC Address Filtering

• Port Triggering

• Port Forwarding

• IP Address Whitelisting

What is the main point of changing the channel your wireless router is using?

• Reduce interference

• Improve Security

• Improve Range

• Improve Bandwidth

What protocol conserves IPv4 addresses and makes sure that private IPv4 addresses are not routed over the internet?

• NAT

• DHCP

• DNS

• HTTP

What commands could be used to reinitiate the DHCP process? (Pick 2)

• ipconfig /release

• ipconfig /renew

• ping

• nslookup

Which service translates domain names into IP addresses?

• DNS
• DHCP
• HTTP
• FTP

A customer calls and says that they have been sending and receiving emails all morning but cannot access web pages. What service is likely down?

• POP

• SMTP

• IMAP

• DNS

• DHCP

Which of the following could be used to enhance the security of a wireless network? (Pick ALL that apply.)

• Use WPA2 encryption

• Use MAC Address Filtering to block unwanted hosts

• Whitelist IP addresses of wanted hosts

• Reset the Wireless Router to Factory Defaults