CNET 157 Final Exam UPDATED
ACTUAL Questions and CORRECT
Answers
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? - CORRECT ANSWER✔✔- DNS settings are incorrect.
What does the ping message "Destination host unreachable" message mean? - CORRECT
ANSWER✔✔- An ARP reply was not received.
What does the ping message "Destination net unreachable" mean? - CORRECT
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? - CORRECT 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? -
CORRECT 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 - CORRECT 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? - CORRECT 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? - CORRECT ANSWER✔✔- Business continuity
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? - CORRECT 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? - CORRECT 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? - CORRECT 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. - CORRECT ANSWER✔✔- System State
Failing to document your network can increase your job security. T/F - CORRECT
ANSWER✔✔- False
Which statement is true regarding differential / incremental backups? - CORRECT
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? -
CORRECT ANSWER✔✔- Verify data can be restored.
The trial-and-error method should NOT be used under which of the following situations? -
CORRECT 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 - CORRECT ANSWER✔✔- False
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? - CORRECT ANSWER✔✔- Define the problem and scope
Which of the following is NOT a good practice for performing upgrades? - CORRECT
ANSWER✔✔- ignore updates to new releases
Traceroute would be best suited for which of the following tasks? - CORRECT
ANSWER✔✔- locating bottlenecks in a network
Which command will display the configured IP address, default gateway, and DNS servers
for a Windows workstation? - CORRECT ANSWER✔✔- ipconfig /all
Which statistic is most likely to be included in a network baseline report? - CORRECT
ANSWER✔✔- hard drive utilization
The ping command is used to determine the path between two devices. T/F - CORRECT
ANSWER✔✔- false
A single ping message with a long response time is a definite indication of a problem. T/F -
CORRECT ANSWER✔✔- false
When dealing with permissions in Linux, what are the three user types that can be assigned
permissions? (Choose three.) - CORRECT ANSWER✔✔- Group
Other
Owner
What type of disk is required if you want to access additional features such as disk spanning?
- CORRECT ANSWER✔✔- dynamic
ACTUAL Questions and CORRECT
Answers
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? - CORRECT ANSWER✔✔- DNS settings are incorrect.
What does the ping message "Destination host unreachable" message mean? - CORRECT
ANSWER✔✔- An ARP reply was not received.
What does the ping message "Destination net unreachable" mean? - CORRECT
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? - CORRECT 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? -
CORRECT 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 - CORRECT 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? - CORRECT 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? - CORRECT ANSWER✔✔- Business continuity
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? - CORRECT 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? - CORRECT 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? - CORRECT 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. - CORRECT ANSWER✔✔- System State
Failing to document your network can increase your job security. T/F - CORRECT
ANSWER✔✔- False
Which statement is true regarding differential / incremental backups? - CORRECT
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? -
CORRECT ANSWER✔✔- Verify data can be restored.
The trial-and-error method should NOT be used under which of the following situations? -
CORRECT 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 - CORRECT ANSWER✔✔- False
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? - CORRECT ANSWER✔✔- Define the problem and scope
Which of the following is NOT a good practice for performing upgrades? - CORRECT
ANSWER✔✔- ignore updates to new releases
Traceroute would be best suited for which of the following tasks? - CORRECT
ANSWER✔✔- locating bottlenecks in a network
Which command will display the configured IP address, default gateway, and DNS servers
for a Windows workstation? - CORRECT ANSWER✔✔- ipconfig /all
Which statistic is most likely to be included in a network baseline report? - CORRECT
ANSWER✔✔- hard drive utilization
The ping command is used to determine the path between two devices. T/F - CORRECT
ANSWER✔✔- false
A single ping message with a long response time is a definite indication of a problem. T/F -
CORRECT ANSWER✔✔- false
When dealing with permissions in Linux, what are the three user types that can be assigned
permissions? (Choose three.) - CORRECT ANSWER✔✔- Group
Other
Owner
What type of disk is required if you want to access additional features such as disk spanning?
- CORRECT ANSWER✔✔- dynamic
