CNET-157 FINAL EXAM 2025 UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED
ANSWERS(COMPLETE SOLUTIONS) ASSURED SUCCESS/GRADED A+
Almost immediately after a server migration project, employees are complaining that they can't reach
the Internet. You sit down at a machine and try to ping a well-known website, which fails. You then try
to ping a known public IP address, which succeeds. What is most likely the problem? - (answer)DNS
settings are incorrect.
What does the ping message "Destination host unreachable" message mean? - (answer)An ARP reply
was not received.
What does the ping message "Destination net unreachable" mean? - (answer)A router in the path from
the source to the destination determined that the destination network does not exist.
What kind of software would you use to view and troubleshoot protocol-specific problems such as TCP
retries caused by missed acknowledgements, or duplicate acknowledgements that cause network slow-
down? - (answer)protocol analyzer
Your current backup schedule involves differential backups of all data Monday through Saturday, with a
full backup on Sunday. Last Saturday, one of your storage drives failed prior to running the daily backup.
What must be done to recover the data on the failed drive? - (answer)The last full backup should be
restored first, followed by the last successful differential backup prior to the drive failure.
Protocol analyzers can help solve problems from the Data Link layer up to the Application layer. T/F -
(answer)True
You have just connected a brand new workstation to your local network. As per company policy, you
have used a static IP configuration. However, all attempts to reach the Internet from the workstation
fail. You have verified that you can communicate with servers and other workstations on the local
network, and that you are the only one having an issue reaching the Internet. What is most likely the
issue? - (answer)incorrectly configured gateway address
Which of the following consists of the policies, procedures, and resources required to ensure that a
business can continue to function after a major catastrophe that renders the site unable to operate? -
(answer)Business continuity
,CNET-157 FINAL EXAM 2025 UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED
ANSWERS(COMPLETE SOLUTIONS) ASSURED SUCCESS/GRADED A+
A junior network administrator tells you that he can ping a DNS server successfully using its IP address,
but he has not tested domain name lookups. What utility on the command line would you suggest your
colleague use next? - (answer)nslookup
You recently completed a network overhaul over the weekend. Everything seems to be functioning
properly until you receive a swarm of help desk support requests, all originating from one specific floor
in your building. After a few minutes on the phone with those affected, you determine that no one has
indicator lights active on their NICs. What is the most likely problem? - (answer)A network switch is
powered off.
You are currently troubleshooting a network issue with your ISP's customer support agent. The agent
requests that you open a command prompt and type "ping 127.0.0.1". What does this accomplish? -
(answer)tests that the local IP protocol is functioning
Select the Windows backup type that copies the boot files, the Registry, Active Directory on domain
controllers, and other critical information. - (answer)System State
Failing to document your network can increase your job security. T/F - (answer)False
Which statement is true regarding differential / incremental backups? - (answer)Incremental backups
copy all files changed since the last full or incremental backup and marks files as backed up.
When using tape backup, what should be done to ensure that the backups are viable? - (answer)Verify
data can be restored.
The trial-and-error method should NOT be used under which of the following situations? - (answer)The
problem is being discussed over the phone and you're instructing an untrained user.
In the problem-solving process, you should always devise a solution to the problem you are facing prior
to determining the scope of the problem. T/F - (answer)False
, CNET-157 FINAL EXAM 2025 UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED
ANSWERS(COMPLETE SOLUTIONS) ASSURED SUCCESS/GRADED A+
You receive a phone call from a co-worker telling you that "the network is down." Just as you are about
to look into the issue, you receive several more phone calls from other co-workers. Using the problem-
solving process, what must be done first to effectively troubleshoot the issue? - (answer)Define the
problem and scope
Which of the following is NOT a good practice for performing upgrades? - (answer)ignore updates to
new releases
Traceroute would be best suited for which of the following tasks? - (answer)locating bottlenecks in a
network
Which command will display the configured IP address, default gateway, and DNS servers for a Windows
workstation? - (answer)ipconfig /all
Which statistic is most likely to be included in a network baseline report? - (answer)hard drive utilization
The ping command is used to determine the path between two devices. T/F - (answer)false
A single ping message with a long response time is a definite indication of a problem. T/F - (answer)false
When dealing with permissions in Linux, what are the three user types that can be assigned
permissions? (Choose three.) - (answer)Group
Other
Owner
What type of disk is required if you want to access additional features such as disk spanning? -
(answer)dynamic
Where are the waiting print jobs stored until they can be sent to the print device? - (answer)print queue
ANSWERS(COMPLETE SOLUTIONS) ASSURED SUCCESS/GRADED A+
Almost immediately after a server migration project, employees are complaining that they can't reach
the Internet. You sit down at a machine and try to ping a well-known website, which fails. You then try
to ping a known public IP address, which succeeds. What is most likely the problem? - (answer)DNS
settings are incorrect.
What does the ping message "Destination host unreachable" message mean? - (answer)An ARP reply
was not received.
What does the ping message "Destination net unreachable" mean? - (answer)A router in the path from
the source to the destination determined that the destination network does not exist.
What kind of software would you use to view and troubleshoot protocol-specific problems such as TCP
retries caused by missed acknowledgements, or duplicate acknowledgements that cause network slow-
down? - (answer)protocol analyzer
Your current backup schedule involves differential backups of all data Monday through Saturday, with a
full backup on Sunday. Last Saturday, one of your storage drives failed prior to running the daily backup.
What must be done to recover the data on the failed drive? - (answer)The last full backup should be
restored first, followed by the last successful differential backup prior to the drive failure.
Protocol analyzers can help solve problems from the Data Link layer up to the Application layer. T/F -
(answer)True
You have just connected a brand new workstation to your local network. As per company policy, you
have used a static IP configuration. However, all attempts to reach the Internet from the workstation
fail. You have verified that you can communicate with servers and other workstations on the local
network, and that you are the only one having an issue reaching the Internet. What is most likely the
issue? - (answer)incorrectly configured gateway address
Which of the following consists of the policies, procedures, and resources required to ensure that a
business can continue to function after a major catastrophe that renders the site unable to operate? -
(answer)Business continuity
,CNET-157 FINAL EXAM 2025 UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED
ANSWERS(COMPLETE SOLUTIONS) ASSURED SUCCESS/GRADED A+
A junior network administrator tells you that he can ping a DNS server successfully using its IP address,
but he has not tested domain name lookups. What utility on the command line would you suggest your
colleague use next? - (answer)nslookup
You recently completed a network overhaul over the weekend. Everything seems to be functioning
properly until you receive a swarm of help desk support requests, all originating from one specific floor
in your building. After a few minutes on the phone with those affected, you determine that no one has
indicator lights active on their NICs. What is the most likely problem? - (answer)A network switch is
powered off.
You are currently troubleshooting a network issue with your ISP's customer support agent. The agent
requests that you open a command prompt and type "ping 127.0.0.1". What does this accomplish? -
(answer)tests that the local IP protocol is functioning
Select the Windows backup type that copies the boot files, the Registry, Active Directory on domain
controllers, and other critical information. - (answer)System State
Failing to document your network can increase your job security. T/F - (answer)False
Which statement is true regarding differential / incremental backups? - (answer)Incremental backups
copy all files changed since the last full or incremental backup and marks files as backed up.
When using tape backup, what should be done to ensure that the backups are viable? - (answer)Verify
data can be restored.
The trial-and-error method should NOT be used under which of the following situations? - (answer)The
problem is being discussed over the phone and you're instructing an untrained user.
In the problem-solving process, you should always devise a solution to the problem you are facing prior
to determining the scope of the problem. T/F - (answer)False
, CNET-157 FINAL EXAM 2025 UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED
ANSWERS(COMPLETE SOLUTIONS) ASSURED SUCCESS/GRADED A+
You receive a phone call from a co-worker telling you that "the network is down." Just as you are about
to look into the issue, you receive several more phone calls from other co-workers. Using the problem-
solving process, what must be done first to effectively troubleshoot the issue? - (answer)Define the
problem and scope
Which of the following is NOT a good practice for performing upgrades? - (answer)ignore updates to
new releases
Traceroute would be best suited for which of the following tasks? - (answer)locating bottlenecks in a
network
Which command will display the configured IP address, default gateway, and DNS servers for a Windows
workstation? - (answer)ipconfig /all
Which statistic is most likely to be included in a network baseline report? - (answer)hard drive utilization
The ping command is used to determine the path between two devices. T/F - (answer)false
A single ping message with a long response time is a definite indication of a problem. T/F - (answer)false
When dealing with permissions in Linux, what are the three user types that can be assigned
permissions? (Choose three.) - (answer)Group
Other
Owner
What type of disk is required if you want to access additional features such as disk spanning? -
(answer)dynamic
Where are the waiting print jobs stored until they can be sent to the print device? - (answer)print queue
