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- 1. Multiple Choice
How many bits of the following IP address are available to assign host IP addresses?
192.168.0.1 /16
8
16
32
128
- 2. Multiple Choice
IPv4 addresses have 32 bits. How many bits are IPv6 addresses?
32
64
256
128
- 3. Multiple Choice
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
- 4. Multiple Choice
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
- 5. Multiple Choice
What is the main point of changing the channel your wireless router is using?
Reduce interference
Improve Security
Improve Range
Improve Bandwidth
- 6. Multiple Choice
What protocol conserves IPv4 addresses and makes sure that private IPv4 addresses are not routed over the internet?
NAT
DHCP
DNS
HTTP
- 7. Multiple Choice
What commands could be used to reinitiate the DHCP process? (Pick 2)
ipconfig /release
ipconfig /renew
ping
nslookup
- 8. Multiple ChoiceWhich service translates domain names into IP addresses?DNSDHCPHTTPFTP
- 9. Multiple Choice
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
- 10. Multiple Choice
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
- 11. Multiple Choice
Ping can be used to diagnose connectivity issues. What type of messages does ping use?
DNS
DHCP
nslookup
ICMP
- 12. Multiple ChoiceThis is the last step of the troubleshooting process?Document Findings, Actions, and OutcomesVerify Full System FunctionalityTrain network usersEstablish a plan of action
- 13. Multiple Choice
What could cause a computer to have an IP address of 169.254.10.20?
Virus
Bad Cable
Behind on installing updates
Problem at the ISP
- 14. Multiple ChoiceWhich of the following could NOT be the cause of a link light not being lit on your NIC?Bad driver for NICBad CableUser sharing permission set incorrectlyProblem at the ISP
- 15. Multiple ChoiceIf you default gateway is configured incorrectly what symptom might you see?IP address of 169.254.5.60Ability to connect to local computers but not the InternetAbility to connect to the Internet but not local machinesNo link light on NIC
- 16. Multiple Choice
Which firewall setting would you use to allow incoming traffic on a specific port number if there was outgoing traffic on a specific port number?
MAC Address Filtering
Port Triggering
Port Forwarding
IP Address Whitelisting
- 17. Multiple Choice
Identify the two rules that can be used to compress IPv6 addresses.
Leading zeros in any segment can be omitted
All zeros can be omitted
A single string of contiguous all-zero segments can be replaced by a double colon
All strings of contiguous all-zero segments can be replaced by double colons
All segments that have similar numbers can be replaced by a colon
- 18. Multiple Choice
Identify the proper compression of the following IPv6 address.
2001:3db8:acad:00a0:3700:0000:0000:a100
2001:db8:acad:a0:3700:0:a100
2001:3db8:acad:a0:3700::a100
2001:3db8:acad:a:37::0:a1
2001:3db8:acad:00a:37:0000:0000:a1
- 19. Multiple Choice
Identify the host and network portion of the following IPv6 address.
2001:3db8:acad:00a0:3700:0000:0000:a100 /64
Host 2001:3db8:acad:00a0
Host 3700:0000:0000:a100
Network 2001:3db8:acad:00a0:3700
Network 2001:3db8:acad:00a0
- 20. Multiple Choice
What is the subnet mask of a computer that has the following IP assignment?
192.168.0.1 /8
255.255.255.0
255.255.0.0
255.0.0.0
255.255.255.255
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