Exam (elaborations)
NWC203c Coursera Questions and Answers
- Course
- Institution
NWC203c Coursera Questions and Answers
[Show more]
Content preview
NWC203c Coursera Questions and AnswersA _______ center is a facility used to house computer systems in an enterprise network.
- ANSWER-data
A _______ is a host that runs software to provide information, such as web content, to
other hosts. - ANSWER-server
A ____________ is a device usually installed between two or more networks to block
undesirable traffic. - ANSWER-firewall
A Cisco switch has Gigabit Ethernet ports. HostA has a 10/100 Ethernet NIC and HostB
has a 10/100/1000 Ethernet NIC. At what speed will each host operate if they are
connected to the Gigabit Ethernet ports? (Choose 2.)
points
Host B will operate at 1000Mb/s.
Host A will operate at 10Mb/s.
Host A will operate at 100Mb/s.
Host B will operate at 100Mb/s.
Host A will operate at 1000Mb/s.
Host B will operate at 10Mb/s. - ANSWER-Host B will operate at 1000Mb/s.
Host A will operate at 100Mb/s.
A customer called the cable company to report that the Internet connection is unstable.
After trying several configuration changes, the technician decided to send the customer
a new cable modem to try. What troubleshooting technique does this represent?
point
bottom-up
substitution
top-down
divide-and-conquer - ANSWER-substitution
A customer calls the help line to report a computer problem. The help line technician
responds and works with the customer for some time. However, the technician cannot
identify the root cause of the problem. What should the technician do to help the
customer?
point
Tell the customer that a replacement computer will be shipped immediately.
Ask for the email address of the customer in order to send all the support documents for
the computer.
Tell the customer that a ticket is created and another technician will contact the user
soon.
Suggest that the customer visit the support website for more detailed information. -
ANSWER-Tell the customer that a ticket is created and another technician will contact
the user soon.
,A default ______ must be configured on an IP-enabled end device so that the device
can communicate with devices on different IP networks.
point - ANSWER-gateway
A network administrator attempted to access the company website and received a
"page not found" error. The next day the administrator checked the web server logs and
noticed that during the same hour that the site failed to load, there was an unusually
large number of requests for the website home page. All of the requests originated from
the same IP address. Given this information, what might the network administrator
conclude?
point
It is normal web surfing activity.
It is likely that someone attempted a DoS attack.
The link to the website does not have enough capacity and needs to be increased.
The web server was turned off and was not able to service requests. - ANSWER-It is
likely that someone attempted a DoS attack.
A network administrator can successfully ping the server at www.cisco.com, but cannot
ping the company web server located at an ISP in another city. Which tool or command
would help identify the specific router where the packet was lost or delayed?
point
ipconfig
netstat
telnet
traceroute - ANSWER-traceroute
A network administrator is troubleshooting inter-connection issues between routers.
Which show command can be used to check which networks the router is connected?
point
show arp
show protocols
show interfaces
show ip route - ANSWER-show ip route
A network administrator is working on a Cisco router. The CLI prompt is Router1(config-
if)#. Which operation is the administrator likely to configure next?
point
the vty lines
the console port
a LAN interface - ANSWER-a LAN interface
A network designer provided 3 bits for hosts addresses. How many hosts addresses are
available to be assigned to hosts?
point
6
,8
14
16
222
224 - ANSWER-6
A network designer provided 8 bits for hosts addresses. How many hosts addresses are
available to be assigned to hosts?
point - ANSWER-254
A network technician enters the command ipconfig /release followed by ipconfig /renew
in order to ensure that the DHCP IP configuration on a workstation is updated.
However, the workstation does not receive a valid IP configuration for the network.
Which two problems may exist on the network? (Choose two.)
points
The DHCP lease time is misconfigured.
There is a DHCP server issue.
The gateway router address needs to be updated.
The ipconfig /all command must be issued to restore all IP configurations.
There is no network connectivity to the DHCP server. - ANSWER-There is a DHCP
server issue.
There is no network connectivity to the DHCP server.
A small office uses a wireless router to connect to a cable modem for Internet access.
The network administrator receives a call that one office computer cannot access
external websites. The first troubleshooting step that the network administrator performs
is to ping the wireless router from the office computer. Which troubleshooting technique
does this represent?
point
bottom-up
top-down
divide-and-conquer
substitution - ANSWER-divide-and-conquer
A small SOHO uses a wireless integrated router for employee workstations to connect
to the Internet. For security consideration, the SSID is not broadcast and the IP address
configuration is provided by the DHCP server in the router. An employee reports that
the workstation cannot connect to the Internet. A technician verifies that other
workstations can successfully connect to the Internet. What are two possible reasons
for the problem? (Choose two.)
points
A default gateway is improperly configured on the wireless router.
The wireless client is not configured for DHCP.
An invalid SSID is configured.
, An incorrect default gateway is manually configured on the client.
A bad cable exists between the client and the integrated router. - ANSWER-The
wireless client is not configured for DHCP.
An invalid SSID is configured.
A technician has been asked to troubleshoot a simple network problem that seems to
be caused by software. Which troubleshooting approach should be used?
point
divide and conquer
top-down
substitution
bottom-up - ANSWER-top-down
A technician has configured a user workstation with the information shown. Although the
user can access all local LAN resources, the user cannot access any Internet sites by
using either domain names or IP addresses. What is causing this failure?
point
The DNS server addresses are incorrect.
The workstation is not in the same network as the DNS servers.
The wrong subnet mask was assigned to the workstation.
The default gateway address is incorrect. - ANSWER-The default gateway address is
incorrect.
A technician is setting up equipment on a network. Which three devices will need IP
addresses? (Choose three.)
points
a wireless mouse
a web camera that is attached directly to a host
a server with two NICs
a printer with an integrated NIC
an IP phone - ANSWER-a server with two NICs
a printer with an integrated NIC
an IP phone
A user calls the help desk to report a workstation problem. Which three questions would
produce the most helpful information for troubleshooting? (Choose three.)
point
If you received an error message, what was it?
What changes have you made to your workstation?
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller CLOUND. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83637 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now