DsmbISP Chapter 3 – CCNA Discovery: Working at a Small-to-Medium Business or ISP (Version 4.1)
1.
Which type of cable has a solid copper core with several protective layers
including PVC, braided wire shielding, and a plastic covering?
STP
UTP
coaxial
fiber
optic
2.
What is the benefit for a company to use an ISR router?
An ISR
provides the functionality of a switch, router, and firewall in one device.
ISRs
use a PC operating system for routing traffic, thus simplifying configuration
and management.
An
ISR is immune to security attacks by hackers and so replaces all other network
security measures.
ISRs make routing decisions at OSI Layer 7, thus
providing more intelligence to the network than do other routers.
3. It
is said that the goal for availability of a communications system is
"five-9s". What is meant by this?
A
down time of .00001% is unacceptable.
A network
needs to be available 99.999% of the time.
Five
percent of all network expense covers 99% of user requirements.
The
most critical time for network availability is from 9:00 to 5:00 p.m. five days
a week.
The
best time to do maintenance on a network is from 5:00 p.m. to 9:00 a.m. five
days a week.
4.
Which device has the ability to break up broadcast and collision domains?
repeater
hub
router
switch
5.
Which two types of cable are used for initial router configuration? (Choose
two.)
serial
cable
rollover
cable
straight-through
cable
crossover
cable
patch
cable
console
cable
6.
Which three items are typically found in an MDF? (Choose three.)
user
workstations
switches
and routers
fax
machines
network
equipment racks
the point
of presence
copier
7. A
client requires a networking device that is capable of expansion to suit
growing network demands. What type of device will suit this requirement?
a
networking device with ports that can be activated and deactivated
a
networking device with a modular physical configuration
a
networking device with the ability to be turned off remotely
a
networking device with a cost per port that is as high as possible
8.
Which three issues should be noted on the technician’s site survey report?
(Choose three.)
unlabeled
cables
only
two power outlets per wall in each room
poor
physical security of network devices
horizontal
cabling runs under 100 meters
lack of
UPS for critical devices
two
users sharing the same computer
9. In
addition to the inventory sheet, what other information about the hosts and
networking equipment should be documented by the on-site technician while
performing the site survey?
any
obsolete office equipment being stored
all
product keys for site license software
any
planned growth anticipated in the near future
the
memory requirements for installed application software
10. A
manufacturing company is in the process of a network upgrade. Which two
statements are true about the phases of the upgrade process? (Choose two.)
Phase 1
is used to determine network requirements.
Phase
2 includes creating an analysis report.
Phase 3
is based on an implementation schedule that allows extra time for unexpected
events.
Phase
4 is where prototypes are created and tested.
Phase
5 includes identifying and addressing any weaknesses in the design.
11.
What does the use of redundant network components supply to a network?
scalability
manageability
compatibility
reliability
12.
Refer
to the exhibit. What type of device is used to connect two networks?
hub
router
switch
access
point
13.
What are two advantages of having ISP-managed services? (Choose two.)
does
not require leasing costs for service
can
guarantee up to 99.999% availability
eliminates
the need for data backup
increases
availability of help desk services
does
not require a Service Level Agreement
14.
Which two benefits can be gained by locating network equipment in a
telecommunications closet, rather than in a user area? (Choose two.)
faster
communication speeds
improved
physical security
more
resistant to hacker attempts
centralized
cable management
less
electrical usage
15.
What is the term for the location at the customer premise where the customer
network physically connects to the Internet through a telecommunications
service provider?
backbone
area
point of
presence
network
distribution facility
intermediate
distribution frame
16.
What must be added when a network expands beyond the coverage area of the
current telecommunications room?
MDF
POP
IDF
IXP
17.
What three things are included in a logical topology document? (Choose three.)
the location
of cables, computers, and other peripherals
the path
that the data takes through a network
the
wireless signal coverage area
the
wiring closet and access point locations
the
device names and Layer 3 addressing information
the
location of routing, network address translation, and firewall filtering
18.
When designing a network upgrade, which two tasks should the onsite technician
perform? (Choose two.)
configure
the servers and routers prior to delivery
upgrade
the network operating system and all client operating systems
investigate
and document the physical layout of the premises
document
the final design for approval by the customer
perform a
site survey to document the existing network structure
19.
In what two ways will entering into a managed service agreement with an ISP for
a network upgrade affect the costs that are incurred by the customer? (Choose
two.)
Customer
IT training costs will increase to enable operation of the new equipment.
The
cost of hardware repairs and support will become the responsibility of the
customer.
Network
upgrade and maintenance costs will become predictable.
Staffing
costs will increase because the customer will need to hire additional IT staff
to complete the upgrade.
The
company will not need to spend a large amount of money to purchase the
equipment upfront.
20.
Refer
to the exhibit. Which type of twisted pair cable is used between each device?
A=console,
B=straight, C=crossover, D= crossover, E=straight
A=straight,
B=straight, C=straight, D=crossover, E=console
A=crossover,
B=straight, C=straight, D=crossover, E=crossover
A=console,
B=straight, C=straight, D=crossover, E=crossover
A=console,
B=crossover, C=crossover, D=straight, E=straight
21.
Why is it important to review the results of an on-site survey report with the
customer before beginning the network design?
to
inform the customer of how much time the upgrade will take
to
discuss the implementation schedule for the new equipment
to verify
that the report accurately describes the current network and any plans for
expansion
to
layout the new network design and discuss possible equipment upgrades and
replacements
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