Networking Essentials 70-58
(I got 965/1000 75 Min.)
My Braindumps: some questions are not exactly the same
with the real one but the analogy is similar. Get the explanation and understand it. If
you want some more information go to YANCY’s
MCSE Page
Question 1 Suppose the following
situation exists :
Your company have 3 office. The headquarter is located
in New York. It has branch offices in Tokyo and Hong Kong. Each of the three offices is
network. Recently, your company has been developing a cross office projects that involve
teams member from difference office. Each office needs to access required resource from
other office.
Required result:
You must implement a network solution which would offer WAN communications between sites.
Optional desired results:
The WAN connection needs to support about 256 Kbps of data.
The WAN connection needs to be able to continue operate at 256 Kbps even if one of the WAN
links should fail.
Proposed solution:
Use two 256 Kbps lease line: one between New York and Hong Kong, one between Hong Kong and
Tokyo. Use two 28.8Kbps modem to connect site New York and Hong Kong and Hong Kong and
Tokyo.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
ImplementationAnswer : B
You should use three 256 Kbps connection: New York to Hong Kong, Hong Kong to Tokyo and
Tokyo to New York. In this case when the 256 K lines fail. The redundancy 28.8 Kpbs modem
line cannot operate in 256 Kbps. So the second optional requirement failed.
Question 2 Suppose the following
situation exists :
You are responsible for setting up the network on your client's office. Your client has
more than 30 employees. Each employee’s computer must be able to access the network
resource.
Required result:
You must choose an extremely reliable network topology with built-in redundancy.
Optional desired results:
You need to minimize the initial setup cost.
You need to minimize the maintenance cost.
Proposed solution:
Implement a bus topology.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
ImplementationAnswer : D
If you need an extremely reliable network with redundancy built in, you might want to
consider either a ring or a star wired ring network. For a small (5-10 users) network, a
bus is usually economical to install initially but may be expensive to maintain because
troubleshooting and reconfiguring take time. On a larger network (20 or more users),
however, a star bus may cost more initially than a bus because of the equipment (a hub),
but will significantly less expensive to maintain in the long run.
Question 3 Suppose the following
situation exists :
Your company is Tokyo based, and has branch offices in Los Angeles and New York. Each
office is networked with 10 Mbps Ethernet in a coaxial cable. Recently, each office needs
to access required resource from other office.
Required result:
You must implement a networking solution which would offer WAN communications between
sites.
Optional desired results:
The WAN connection needs to support about 1.5 Mbps of data.
The WAN connection needs to able to continue operations at 1.5 Mbps even if one of the WAN
links should fail.
Proposed solution:
Use two T1 connection lines: one between Tokyo and Los Angeles, one between Los Angeles
and New York.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
ImplementationAnswer : B
You should use a T1 link at each site because it can carry both voice and data
simultaneously. However, there are only two T1 lines and there are no redundancy path. You
should use three T1 connections: one between Tokyo and Los Angeles, one between Los
Angeles and New York, and one between New York and Tokyo to satisfy the second optional
results.
Question 4 Suppose the following
situation exists :
Your company is Tokyo based, and has branch offices in Los Angeles and New York. Each
office is networked with 10 Mbps Ethernet in a coaxial cable. Recently, each office needs
to access required resource from other office.
Required result:
You must implement a networking solution which would offer WAN communications between each
office.
Optional desired results:
The WAN connection needs to support at least 256 Kbps of data, and several analog
telephone coversations between offices.
The WAN connection needs to able to continue operations even if one of the WAN links
should fail.
Proposed solution :
Use three dedicated analog connection lines: one between Tokyo and Los Angeles, one
between Los Angeles and New York, and one between New York and Tokyo.
Which results does the proposed solution produce ?
A. The proposed solution produces the required result and produces both of the optional
desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Answer : B
The required result is met. However, you should use a T1 link at each site because it can
carry both voice and data simultaneously. Analog lines cannot satisfy this requirement. So
the first optional result cannot be met.When one line fail, each site can still
communicate by using the rest of line. The second optional result is met.
Question 5 Suppose the following
situation exists :
Your company has computers and networked in different architectures. The accounting
department has a Windows NT Server LAN. Purchasing department has a workgroup running on
Windows for Workgroups. The R&D department uses SGI workstation. The marketing
department is networked with Novell. The management wants to implement a workflow system
to smooth the inter-department operation.
Required result:
You must implement a network model that is appropriate for your company.
Optional desired results:
The network needs to enforce security.
The network should be allowed to expand in the future.
Proposed solution :
Implement a centralized network with dedicated servers. Implement user-level security on
the network.
which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Answer : A
Number of user and security is a point for choosing a network model. A server-based
network should be implemented if there are more than 10 users and a security is an issue.
A peer-to-peer network is suitable for less than 10 computer on a network and security is
not a issue.
Question 6 Suppose the following
situation exists :
Your company’s sales person and engineer are located in separate buildings. The sales
person’s PC-compatibles computer is networked with a twisted-pair cable in a
peer-to-peer network. The engineering staff has a computers including SGI workstation and
PC-compatibles. Those computers are not networked. Your boss would like to restructure the
whole network so that they can implement a workflow program and standardize on the type of
network used in both building to minimize the maintenance cost
Required result :
You want to standardize the network architecture and the network must be able to operates
at a 10 Mbps transmission rate.
Optional desired results:
You want to keep to minimize the cost.
You want to be able to expand the network in the future.
Proposed solution:
Implement Ethernet 10Base2
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Answer : B
Ethernet 10BaseT is the suggested solution in this case. Firstly, it is easy to
troubleshoot and install.
10BaseT uses twisted-pair cable and is the least expensive type of network because many
building in U.S are prewired for twisted-pair telephone systems. 10Base2 can fulfil the
transmission speed 10Mbps but the cost of installing coaxial cable and the difficult to
troubleshoot property make it does not satisfy the cost requirement on the optional
requirement.
Question 7 Suppose the following
situation exists :
After a rapid expand on your Ethernet TCP/IP network. The network performance is becoming
worse as more and more computers are added to your network.
Required result :
You must choose a type of connectivity device that reduce traffic bottlenecks resulting
from an excessive number of attached computers.
Optional desired result :
You want to resolve broadcast storms
You want to provide traffic filtering based on network (hardware) addresses.
You want to expand the distance of a segment.
Proposed solution :
Implement bridges to segment the network without suffer from attenuation.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Answer : C
Attenuation means weakening or distorting of a transmitted signal as it goes further from
its point of origin. Bridges can perform the same functions as repeaters, but they can
also reduce traffic by segmenting the network. Bridges work at the Data Link layer to
extend a network’s distance and segment network traffic based on Media Access Control
layer addresses. Bridges cannot recognize network hardware addresses. Bridges pass all
broadcasts, and therefore cannot resolve broadcast storms. In this case, you need to
implement a router.
Question 8 Suppose the following
situation exists :
After a rapid expand on your Ethernet TCP/IP network. The network performance is becoming
worse as more and more computers are added to your network.
Required result :
You must choose a type of connectivity device that reduce traffic bottlenecks resulting
from an excessive number of attached computers.
Optional desired results:
You want to resolve broadcast storms.
You want to provide traffic filtering.
You want to expand the distance of a segment without suffer from attenuation.
Proposed solution :
Implement repeaters to segment the network.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Answer : D
Attenuation means weakening or distorting of a transmitted signal as it goes further from
its point of origin. Repeaters are the simplest components used to expand a LAN. They work
at the OSI Physical layer to boost signals and pass them along. Repeaters are the least
expensive way to expand a network, but they are limited to connecting two segments. You do
not want to use repeaters if there is heavy network traffic.
Question 9 Suppose the following
situation exists :
You company’s computer has just networked with a server-based network. The staffs of
your company were used to working with information on their own computers. They faces the
problem that all users were getting into each other's file, sometimes deleting and copying
sensitive material.
Required result :
You must implement a security model for your company.
Optional desired results :
You want to restrict former staff to accessing the network resources.
You want to ensure that authorized staffs have access to sensitive data within a limited
time periods.
Proposed solution:
Implement user-level security. Require anyone working with sensitive data to automatically
change their password every 30 days. Delete or disable any inactive accounts.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Answer : B
The level of security you need depends on a variety of factors including the size of the
organization and sensitivity of data.
There are two type of security model.
Share-level security is also called password-protected shares. Each user has control on
their shared resources by assigning a password to a resource of network as access control.
Access to the shared resource is granted when a user have the appropriate password.
Another type of security model is user-level security.
Implementing user-level security involves assigning certain rights on a user-by-user basis
by the Administrator. User-level security provides a higher level of control and it is
usually preferred model in larger organizations. Given the situation described, it is
clear that share-level security will not be sufficient.
So the required result is met. Changing the password every 30 days and disable the
inactive account can only fulfill the first optional requirement but not restrict the user
to access the data within a limited period.
Question 10 Suppose the following
situation exists :
Your company have 2 office in 2 difference cities. Each of the two offices has a network.
Recently, your company has been developing a cross office projects that involve teams
member from difference office. Each office needs to access required resource from other
office.
Required result :
You must implement a network solution which would offer about 1.5Mbps connection between
sites.
Optional desired results :
You need to keep the cost minimum.
The WAN connection needs to be able to continue operate at 1.5 even if one of the WAN
links should fail.
Proposed solution :
Setup 8 28.8 kbps modem pool on each site (total 16 modems). Use Windows NT 4.0 MultiLink
feature to connect two office.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Answer : D
8 modem provides totally about 230 Kbps bandwidth. Does not provide the required T1
connection. T1 is the standard digital line service. It is a point-to-point transmission
technology that use two-wire pairs to transmit a full-duplex signal. It provides
transmission rates of 1.544 Mbps and can carry both voice and data. T1 lines are among the
most costly of all WAN links.
Question 11 Suppose the following
situation exists :
Your company’s sales person and engineer are located in separate buildings. The
distance between two buildings are about 600 meters. The sales person’s
PC-compatibles computer is networked with a twisted-pair cable in a peer-to-peer network.
The engineer has a computers including SGI workstation and PC-compatibles on an Ethernet
network. Your boss would like to implement a workflow application for sales and engineer.
So you need to connect the engineer’s network to the sales person’s network.
Required result :
You must connect the network between the two buildings.
Optional desired results:
The network should be easy to install.
The network should be immune to electronic interference.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Answer : B
A fiber-optic Ethernet solution (10BaseF) should be implemented. Because only fiber-optic
cable can offer the distance capabilities needed to cover 600 meters without using
repeater. Fiber-optic cables are not susceptible to interference, and can support
transmission rates of 100 Mbps or more. However, they are very difficult to install and
are not flexible and the cost is high.
Now its time for you to answer it on
your own and do some research on this. Good LUCK !!!!
Question 12 Your company has decided
to implement a WAN in the near future. You are required to design a Net BIOS naming
scheme. At the present time your company consist of:
20,000 Computers using TCP/IP
850 Servers using Windows NT & NetWare
2500 HP LaserJet printers
Each employee has their own e-mail address
Required result:
The naming scheme should work after the company implements the WAN.
Optional desired results:
Naming scheme should show department, location and define the user.
Proposed solution:
Implement a 16 characters NetBIOS naming scheme. The first 6 characters would show the
department, 5 characters would show the location, and the other 5 characters will have
part of the e-mail address for each user.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Question 13 Your company is
implementing a WAN. You want to connect three locations in Atlanta, New York and Los
Angeles.
Required results:
They need to have communication of at least 1 Mbps at all times.
Desired optional results:
They need to have continued communication between all cities at 1 Mbps even if one line
breaks.
Proposed solution:
Connect a T1 line between New York and Los Angeles and Los Angeles and Atlanta.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Question 14 Your company is
implementing a WAN. You want to connect three locations in Atlanta, New York and Los
Angeles.
Required results:
They need to have communication of at least 1 Mbps at all times.
Desired optional results:
They need to have continued communication between all cities at 1 Mbps even if one line
breaks.
Proposed solution:
Connect 3 T1 lines between each of the three cities.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Question 15 You have a network in
which network utilization has increased from 30% to 70% in one year. You plan to add
another server and 30 clients within 12 months.
Required Result:
Reduce network utilization by 50%
Optional results:
allow for future expansion
minimize costs
maintain network utilization at its present lower level
Proposed solution:
Change the packet size from 1514 bytes to 576 bytes and increase the TCP window from 4096
bytes to 16384 bytes
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Question 16 You've got 'x' number of
servers and PC's using a mixture of routable and non-routable protocols including TCP/IP,
SPX/IPX and NetBEUI. You've got 4 brouters. And the network performance is being seriously
compromised by network broadcast traffic.
Required:
Cut broadcast traffic by 50%
Optional Desired Results:
keep costs to a minimum
allow for further expansion
Proposed Solution:
Convert all the computers to NWLink and disable the bridging
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Question 17 You have offices in
Atlanta, New York, and LA You want to connect the 3 offices in a WAN.
Required result: They must have communication of at
least 1 Mbps
Optional desired result: They must be able to
communicate at 1 Mbps even if one link fails.
Solution: Install 2 T1 links (New York to Atlanta,
Atlanta to LA)
Install dial-up connections of 28.8 Kbps between all 3 sites.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Question 18 You have offices in
Atlanta, New York, and LA You want to connect the 3 offices in a WAN.
Required result: They must have communication of at
least 1 Mbps
Optional desired result: They must be able to
communicate at 1 Mbps even if one link fails.
Solution: put a RAS server at each site and have 6 28.8
Kbps lines going between all 3 sites.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Question 19 You have a number of
computers in a 10Base2 network and it has reached 70% of capacity. You will be adding some
more computers later.
Required result: Increase speed by 50% and reduce % of
capacity to ? (I think 30).
Optional desired results: Maintain the level of
operation after adding the additional computers and Minimal change to operation
Solution: Install fiber optic cable and FDDI adapters
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
Question 20 Your company has decided
to implement a WAN in the near future. You are required to design a Net BIOS naming
scheme. At the present time your company consist of:
20,000 Computers using TCP/IP
850 Servers using Windows NT & NetWare
2500 HP LaserJet printers
Each employee has their own e-mail address
Required result:
The naming scheme should work after the company implements the WAN.
Optional desired results:
Naming scheme should show department, location and define the user.
Proposed solution:
Implement a 15 characters NetBIOS naming scheme. The first 5 characters would show the
department, 5 characters would show the location, and the other 5 characters will have
part of the e-mail address for each user.
Which results does the proposed solution produce ?
A. The
proposed solution produces the required result and produces both of the optional desired
B. The proposed solution produces
the required result and produces only 1 of the optional desired
C. The proposed solution produces
the required result but does not produces any of the optional
D. The proposed solution does not
produce the required result.
